1990 ATV Polaris W908139 TRAIL BOSS 350L 4X4 (1990) (W908139) Rear Brake Assembly (4918541854033A) OEM Parts | Assembly Diagram OEM Parts Finder and Diagram (Microfiche) Inspector

$219.99
          Recommended Quantity: 1

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

          Stock: TBD
          1
          MPN/SKU: 5130714
          CALIPER,REAR BRAKE
          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
                  2
                  Item # 1627927
                  Polaris / Indian Pad Assembly Brake - 2200464
                  Leaves Warehouse: 5 to 7 days
                  $52.99
                          Recommended Quantity: 1

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

                          Stock: TBD
                          3
                          Item # 1630484
                          Polaris / Indian Pin Dowel - 7661820
                          Leaves Warehouse: 5 to 7 days
                          $19.99
                                  Recommended Quantity: 2

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

                                  Stock: TBD
                                  5
                                  Item # 1591382
                                  Polaris / Indian Bleeder SCrew - 7080352
                                  Leaves Warehouse: 5 to 7 days
                                  $5.49
                                          Recommended Quantity: 1

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

                                          Stock: TBD
                                          6
                                          MPN/SKU: -------
                                          Seal Ring, .120 Sq.
                                          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
                                                  7
                                                  MPN/SKU: -------
                                                  Seal Ring, .066 Sq.
                                                  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
                                                          8
                                                          MPN/SKU: -------
                                                          Brake Piston, Rear
                                                          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
                                                                  9
                                                                  MPN/SKU: 1930666
                                                                  KIT,BRAKE SEALS&PISTON
                                                                  Unavailable
                                                                  $114.99
                                                                          Recommended Quantity: 1

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

                                                                          Stock: TBD
                                                                          10
                                                                          Item # 1690202
                                                                          Polaris / Indian Screw Sems - 7512020
                                                                          Leaves Warehouse: 5 to 7 days
                                                                          $3.99
                                                                                  Recommended Quantity: 1

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

                                                                                  Stock: TBD
                                                                                  11
                                                                                  MPN/SKU: 5211143
                                                                                  PLATE, PIN
                                                                                  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
                                                                                          12
                                                                                          MPN/SKU: -------
                                                                                          O-Ring, .070
                                                                                          Unavailable
                                                                                          $0.00
                                                                                                  Recommended Quantity: 2

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

                                                                                                  Stock: TBD
                                                                                                  13
                                                                                                  Item # 1685233
                                                                                                  Polaris / Indian Spring Brake Com - 7041219
                                                                                                  Out of Stock
                                                                                                  $32.99
                                                                                                          Recommended Quantity: 1

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

                                                                                                          Stock: TBD
                                                                                                          14
                                                                                                          MPN/SKU: -------
                                                                                                          Brake Pin, Actuator
                                                                                                          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
                                                                                                                  Item # 1684960
                                                                                                                  Polaris / Indian Brake Gasket - 5830009
                                                                                                                  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
                                                                                                                          16
                                                                                                                          Item # 1683960
                                                                                                                          Polaris / Indian Ramp Move.Brake - 5630366
                                                                                                                          Out of Stock
                                                                                                                          $13.89
                                                                                                                                  Recommended Quantity: 1

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

                                                                                                                                  Stock: TBD
                                                                                                                                  17
                                                                                                                                  Item # 1683959
                                                                                                                                  Polaris / Indian Ramp Station.Brake - 5630346
                                                                                                                                  Out of Stock
                                                                                                                                  $13.89
                                                                                                                                          Recommended Quantity: 1

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

                                                                                                                                          Stock: TBD
                                                                                                                                          18
                                                                                                                                          MPN/SKU: 7512292
                                                                                                                                          BOLT, SOC. HD.(10)
                                                                                                                                          Unavailable
                                                                                                                                          $0.00
                                                                                                                                                  Recommended Quantity: 2

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

                                                                                                                                                  Stock: TBD
                                                                                                                                                  19
                                                                                                                                                  Item # 1675515
                                                                                                                                                  Polaris / Indian Arm Brake Caliper - 5222454
                                                                                                                                                  Out of Stock
                                                                                                                                                  $3.19
                                                                                                                                                          Recommended Quantity: 1

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

                                                                                                                                                          Stock: TBD
                                                                                                                                                          20
                                                                                                                                                          Item # 1647726
                                                                                                                                                          Polaris / Indian Washer - 7558301
                                                                                                                                                          Leaves Warehouse: 5 to 7 days
                                                                                                                                                          $1.99
                                                                                                                                                                  Recommended Quantity: 1

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

                                                                                                                                                                  Stock: TBD
                                                                                                                                                                  21
                                                                                                                                                                  MPN/SKU: 7542129
                                                                                                                                                                  NUT(10)
                                                                                                                                                                  Unavailable
                                                                                                                                                                  $5.99
                                                                                                                                                                          Recommended Quantity: 1

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

                                                                                                                                                                          Stock: TBD
                                                                                                                                                                          22
                                                                                                                                                                          Item # 1660933
                                                                                                                                                                          Polaris / Indian Brake Adjuster - 1910050
                                                                                                                                                                          Out of Stock
                                                                                                                                                                          $5.59
                                                                                                                                                                                  Recommended Quantity: 1

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

                                                                                                                                                                                  Stock: TBD
                                                                                                                                                                                  23
                                                                                                                                                                                  Item # 1593954
                                                                                                                                                                                  Polaris / Indian Brake Seal - 3610026
                                                                                                                                                                                  Leaves Warehouse: 5 to 7 days
                                                                                                                                                                                  $10.99
                                                                                                                                                                                          Recommended Quantity: 1

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

                                                                                                                                                                                          Stock: TBD
                                                                                                                                                                                          24
                                                                                                                                                                                          MPN/SKU: 5222232
                                                                                                                                                                                          SPRING,ANTI-RATTLE
                                                                                                                                                                                          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
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                                                                                                                                                                                                  For the current model: W908139 TRAIL BOSS 350L 4X4 (1990) (W908139)

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                                                                                                                                                                                                  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.

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                                                                                                                                                                                                  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.