Defender US
Free Shipping on orders over $99*

Sierra

1378 Listed

  1. Sierra Upper Drive Unit Cap for Mercruiser Stern Drives - 18-2381

    $134.99
    0

  2. Sierra Head Gasket for Mercury/Mariner Outboard Motors - 18-3864

    $87.48
    0

  3. Sierra Rear Main Seal - One-Piece - 18-1234

    $150.99
    0

  4. Sierra Power Trim Cylinder Anchor Pin Kit for Mercruiser Stern Drives - 18-2462

    $189.99
    0

  5. Sierra Power Trim Cylinder Anchor Pin Kit for Mercruiser Stern Drives - 18-2463

    $69.69
    0

  6. Sierra Water Pump Impeller for Yamaha Outboard - 18-3042

    $36.99
    0

  7. Sierra Air Filter for Mercury/Mariner Outboard Motors - 18-7997

    $19.99
    0

  8. Sierra 4 Cycle Outboard Oil Filter - 18-7896

    $12.80
    0

  9. Sierra Gear Lube Adapter - 18-9794

    $7.35
    0

  10. Sierra Oil Seal for Yamaha Outboard Motors - 18-0587

    $6.79
    0

  11. Sierra Water Pump Kit - without Housing - 18-3310

    $109.59
    0

  12. Sierra Powerhead Gasket for Yamaha Outboard Motors - 18-0813

    $52.48
    0

  13. Sierra Carrier Seal for Mercruiser Stern Drives - 18-2354

    $38.99
    0

  14. Sierra Upper Drive Unit Cap for Mercruiser Stern Drives - 18-2382

    $210.99
    0

  15. Sierra Oil Seal Carrier Roller Bearing Retainer Ring for Mercruiser Stern Drives - 18-4296

    $18.04
    0

  16. Sierra Prop Nut Kit for Yamaha Outboard Motors - 18-3781

    $164.48
    0

  17. Sierra Head Gasket for Chrysler Inboard Inboards - 18-3860

    $119.99
    0

  18. Sierra Oil Seal for Mercruiser Stern Drives - 18-2094

    $27.99
    0

  19. Sierra Piston Rings for Johnson/Evinrude Outboard Motors - 18-4088

    $63.99
    0

  20. Sierra Cylinder Head O-Ring for Johnson/Evinrude Outboard Motors - 18-7110

    $5.52
    0

  21. Sierra Oil Seal for Johnson/Evinrude Outboard Motors - 18-8325

    $10.85
    0

  22. Sierra Bellows Kit for OMC Sterndrive/Cobra Stern Drives - 18-2771

    $467.23
    0

  23. Sierra Exhaust Manifold Gasket for Mercruiser Stern Drives - 18-4347-1

    $31.99
    0

  24. Sierra Exhaust Manifold Gasket for Mercruiser Stern Drives - 18-4349

    $39.99
    0

  25. Sierra O-Ring - 18-7961

    $10.05
    0

  26. Sierra Piston for Mercury/Mariner Outboard Motors - 18-4643

    $77.34
    0

  27. Sierra Outdrive Gasket - 18-2699

    $6.26
    0

  28. Sierra Tapered Roller Bearing for Mercruiser Stern Drives - 18-1179

    $30.66
    0

  29. Sierra Thermostat Kit for Mercruiser Stern Drives - 18-3646

    $36.99
    0

  30. Sierra Power Trim Motor for Mercury/Mariner Outboard Motors - 18-6773

    $656.23
    0

  31. Sierra U-Joint Cross Bearing for Mercruiser Stern Drives - 18-2097

    $82.99
    0

  32. Sierra Water Pump Kit - without Housing for Yamaha Outboard Motors - 18-3370

    $40.99
    0

  33. Sierra Water Pump Kit - without Housing for Yamaha Outboard Motors - 18-3395

    $72.99
    0

  34. Sierra Gear Housing Seal Kit for Yamaha Outboard Motors - 18-0021

    $67.99
    0

  35. Sierra Gear Housing Seal Kit for Yamaha Outboard Motors - 18-0024

    $63.74
    0

  36. Sierra Oil Seal - 18-0579

    $19.21
    0

  37. Sierra Oil Seal - 18-0580

    $18.87
    0

  38. Sierra Oil Seal - 18-0583

    $16.27
    0

  39. Sierra Manifold with Mounting Package for Volvo Penta Stern Drives - 18-1931-1

    $401.61
    0

  40. Sierra Manifold - Starboard - with Mounting Package for Mercruiser Stern Drives - 18-1951-1

    $459.99
    0

  41. Sierra Thermostat Housing - Stainless Steel for Mercruiser Stern Drives - 18-1989

    $342.99
    0

  42. Sierra Carrier Bearing for Chrysler Force Outboard Motors - 18-2370

    $177.99
    0

  43. Sierra Lower Unit Seal Kit for Chrysler Force Outboard Motors - 18-2635

    $55.99
    0

  44. Sierra Lower Unit Seal Kit for Mercury/Mariner Outboard Motors - 18-2642

    $48.99
    0

  45. Sierra Power Trim Bushing for Mercruiser Stern Drives - 18-2702-04

    $43.73
    0

  46. Sierra Water Pump Kit for Mercruiser Stern Drives - 18-3147

    $134.99
    0

  47. Sierra Water Pump Housing Kit for Mercury/Mariner Outboard Motors - 18-3571

    $281.73
    0

  48. Sierra Prop Nut for Yamaha Outboard Motors - 18-3732

    $43.73
    0
Previous13 / 29Next

1Filters

Clear All
  1. Departments: Engine ×
Departments
Manufacturer
Price
1.01
1426.99
Display Size
More Ways To Shop
Availability
Fulfillment

Change Locale

United States - English Shop in currency: USD
Canada - English Shop in currency: CAD
Canada - Français Shop in currency: CAD

Explore

Guides
Brands

Helpful Information

Track My Order
Shipping Policy
Return Policy
Outlet Store
Commercial Accounts

Get In Touch

Customer Service
1-800-435-7180
Send a Message

Resources

Gift Cards
Privacy Policy
Conditions of Use
Accessibility Statement

Stay Connected

X
Facebook
Instagram
YouTube
Toggle desktop/mobile version
2026 © Defender. All Rights Reserved.