2012 ATV Polaris A12TN55FA SPORTSMAN X2 550 INTL (2012) (A12TN55FA) ENGINE, CRANKSHAFT and PISTON - A12TN55FA (49ATVCRANKSHAFT09SPXP550) OEM Parts | Assembly Diagram OEM Parts Finder and Diagram (Microfiche) Inspector

1
Item # 1670407
Polaris / Indian Assembly Crankshaft - 3090301
Leaves Warehouse: 5 to 7 days
$1,354.99
          Recommended Quantity: 1

          This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

          Stock: TBD
          2
          MPN/SKU: 3090173
          Piston, Set, Std.
          Unavailable
          $179.99
                  Recommended Quantity: 1

                  This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                  Stock: TBD
                  2
                  Item # 1670363
                  Polaris / Indian Piston Set - 3090174
                  Leaves Warehouse: 5 to 7 days
                  $230.99
                          Recommended Quantity: 1

                          This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                          Stock: TBD
                          2
                          Item # 1670364
                          Polaris / Indian Piston Set 0.50 - 3090175
                          Leaves Warehouse: 5 to 7 days
                          $230.99
                                  Recommended Quantity: 1

                                  This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                  Stock: TBD
                                  3
                                  Item # 1670321
                                  Polaris / Indian Piston Ring Standard - 3090110
                                  Leaves Warehouse: 5 to 7 days
                                  $102.99
                                          Recommended Quantity: 1

                                          This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                          Stock: TBD
                                          3
                                          Item # 1670365
                                          Polaris / Indian Piston Ring Set 0.25 - 3090176
                                          Leaves Warehouse: 5 to 7 days
                                          $102.99
                                                  Recommended Quantity: 1

                                                  This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                  Stock: TBD
                                                  3
                                                  MPN/SKU: 3090177
                                                  Ring, Piston Set, .50 OS
                                                  Unavailable
                                                  $79.99
                                                          Recommended Quantity: 1

                                                          This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                          Stock: TBD
                                                          4
                                                          Item # 1670362
                                                          Polaris / Indian Connecting Rod - 3090172
                                                          Leaves Warehouse: 5 to 7 days
                                                          $294.99
                                                                  Recommended Quantity: 1

                                                                  This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                  Stock: TBD
                                                                  5
                                                                  Item # 1669026
                                                                  Polaris / Indian Bearing Large End - 3085400
                                                                  Leaves Warehouse: 5 to 7 days
                                                                  $115.99
                                                                          Recommended Quantity: 1

                                                                          This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                          Stock: TBD
                                                                          6
                                                                          Item # 1668931
                                                                          Polaris / Indian Ball Steel - 3085024
                                                                          Leaves Warehouse: 5 to 7 days
                                                                          $8.99
                                                                                  Recommended Quantity: 1

                                                                                  This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                  Stock: TBD
                                                                                  7
                                                                                  Item # 1670377
                                                                                  Polaris / Indian Balancer Gear Drive - 3090211
                                                                                  Leaves Warehouse: 5 to 7 days
                                                                                  $164.99
                                                                                          Recommended Quantity: 1

                                                                                          This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                          Stock: TBD
                                                                                          8
                                                                                          Item # 1668339
                                                                                          Polaris / Indian Ball Bearing - 3080676
                                                                                          Leaves Warehouse: 5 to 7 days
                                                                                          $51.99
                                                                                                  Recommended Quantity: 1

                                                                                                  This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                                  Stock: TBD
                                                                                                  9
                                                                                                  MPN/SKU: 3090108
                                                                                                  Sprocket, Crank
                                                                                                  Unavailable
                                                                                                  $49.99
                                                                                                          Recommended Quantity: 1

                                                                                                          This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                                          Stock: TBD
                                                                                                          10
                                                                                                          Item # 1670408
                                                                                                          Polaris / Indian Crankshaft 1 - 3090302
                                                                                                          Leaves Warehouse: 5 to 7 days
                                                                                                          $567.99
                                                                                                                  Recommended Quantity: 1

                                                                                                                  This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                                                  Stock: TBD
                                                                                                                  11
                                                                                                                  Item # 1670320
                                                                                                                  Polaris / Indian Piston Pin - 3090109
                                                                                                                  Leaves Warehouse: 5 to 7 days
                                                                                                                  $84.99
                                                                                                                          Recommended Quantity: 1

                                                                                                                          This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                                                          Stock: TBD
                                                                                                                          12
                                                                                                                          Item # 1670361
                                                                                                                          Polaris / Indian Crankshaft 2 - 3090170
                                                                                                                          Leaves Warehouse: 5 to 7 days
                                                                                                                          $276.99
                                                                                                                                  Recommended Quantity: 1

                                                                                                                                  This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                                                                  Stock: TBD
                                                                                                                                  13
                                                                                                                                  Item # 1669068
                                                                                                                                  Polaris / Indian Clip - 3085534
                                                                                                                                  Leaves Warehouse: 5 to 7 days
                                                                                                                                  $8.99
                                                                                                                                          Recommended Quantity: 2

                                                                                                                                          This part has 2 locations on the diagram. It is the recommended quantity, but not a requirement.

                                                                                                                                          Stock: TBD
                                                                                                                                          14
                                                                                                                                          MPN/SKU: 3090212
                                                                                                                                          Shaft, Balancer 1
                                                                                                                                          Unavailable
                                                                                                                                          $0.00
                                                                                                                                                  Recommended Quantity: 1

                                                                                                                                                  This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                                                                                  Stock: TBD
                                                                                                                                                  15
                                                                                                                                                  MPN/SKU: 3090213
                                                                                                                                                  Shaft, Balancer 2
                                                                                                                                                  Unavailable
                                                                                                                                                  $314.99
                                                                                                                                                          Recommended Quantity: 1

                                                                                                                                                          This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                                                                                          Stock: TBD
                                                                                                                                                          16
                                                                                                                                                          Item # 1619911
                                                                                                                                                          Polaris / Indian Key Woodruff - 3081543
                                                                                                                                                          Out of Stock
                                                                                                                                                          $19.99
                                                                                                                                                                  Recommended Quantity: 1

                                                                                                                                                                  This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                                                                                                  Stock: TBD
                                                                                                                                                                  17
                                                                                                                                                                  Item # 1670324
                                                                                                                                                                  Polaris / Indian Nut - 3090113
                                                                                                                                                                  Leaves Warehouse: 5 to 7 days
                                                                                                                                                                  $39.99
                                                                                                                                                                          Recommended Quantity: 1

                                                                                                                                                                          This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                                                                                                          Stock: TBD
                                                                                                                                                                          18
                                                                                                                                                                          Item # 1670325
                                                                                                                                                                          Polaris / Indian Washer - 3090114
                                                                                                                                                                          Leaves Warehouse: 5 to 7 days
                                                                                                                                                                          $13.99
                                                                                                                                                                                  Recommended Quantity: 1

                                                                                                                                                                                  This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                                                                                                                  Stock: TBD
                                                                                                                                                                                  19
                                                                                                                                                                                  Item # 1669831
                                                                                                                                                                                  Polaris / Indian Needle Bearing - 3087976
                                                                                                                                                                                  Leaves Warehouse: 5 to 7 days
                                                                                                                                                                                  $32.99
                                                                                                                                                                                          Recommended Quantity: 1

                                                                                                                                                                                          This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                                                                                                                          Stock: TBD
                                                                                                                                                                                          20
                                                                                                                                                                                          MPN/SKU: 3090171
                                                                                                                                                                                          Pin, Crank
                                                                                                                                                                                          Unavailable
                                                                                                                                                                                          $99.99
                                                                                                                                                                                                  Recommended Quantity: 1

                                                                                                                                                                                                  This part has 1 location on the diagram. It is the recommended quantity, but not a requirement.

                                                                                                                                                                                                  Stock: TBD
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                                                                                                                                                                                                  For the current model: A12TN55FA SPORTSMAN X2 550 INTL (2012) (A12TN55FA)

                                                                                                                                                                                                  Polaris OEM Parts

                                                                                                                                                                                                  When it comes to your Polaris Powersports vehicle, there’s no substitute for genuine OEM parts — crafted to perfection, designed for durability, and fine-tuned for peak performance. Polaris OEM parts consistently deliver top-notch quality, ensuring your machine stays at its best, no matter the terrain.

                                                                                                                                                                                                  Take brake pads for the Polaris RZR — specially engineered to give you precise stopping power while keeping your high-performance side-by-side under control. And when we talk about the Polaris Sportsman, air filters play a critical role in keeping your engine running clean and strong, ensuring maximum efficiency and longevity. For the Polaris Ranger, spark plugs are a crucial component, guaranteeing reliable ignition and smooth performance whether you’re working hard or exploring the great outdoors.

                                                                                                                                                                                                  Trying to force square pegs into round holes doesn’t work — so don’t settle for anything less than the exact fit for your ride. Stick with genuine Polaris OEM parts for unmatched reliability and performance.

                                                                                                                                                                                                  Shop Polaris OEM Parts with the Diagram (Microfiche) Inspector:

                                                                                                                                                                                                  On the path to enhancing your ride, it starts with simply selecting your riding style, year, and model. Next, the visual Diagram (Microfiche) Inspector tool, an innovative tool made easy: works like a charm in helping you to pinpoint the exact parts you need. So, whether you're riding a Polaris Ranger, a Polaris General, or a Polaris Outlaw, the Inspector will assist you to find the perfect part to keep your ride smooth.