Defender US
Free Shipping on orders over $99*

Sierra

1378 Listed

  1. Sierra Oil Seal for Johnson/Evinrude Outboard Motors - 18-8300

    $16.85
    1

  2. Sierra Impeller - Dia. 1 1/2,Dpth. 7/8" - 6 Fins - Neoprene - Key - 18-3063

    $37.99
    0

  3. Sierra 4 Cycle Outboard Oil Filter for Volvo Penta Stern Drives - 18-7974

    $8.76
    0

  4. Sierra 4 Cycle Outboard Oil Filter for Johnson/Evinrude Outboard Motors - 18-7916

    $11.46
    0

  5. Sierra 4 Cycle Outboard Oil Filter for Mercury/Mariner Outboard Motors - 18-7918

    $13.22
    0

  6. Sierra Air Filter for Mercury/Mariner Outboard Motors - 18-7999

    $55.99
    0

  7. Sierra Thermostat Kit - 160 for Mercruiser Stern Drives - 18-3648

    $32.99
    0

  8. Sierra Water Pump Kit for Mercury/Mariner Outboard Motors - 18-3323

    $216.98
    0

  9. Sierra Water Pump Kit for Yamaha Outboard Motors - 18-3433

    $37.99
    0

  10. Sierra Water Pump Kit for Yamaha Outboard Motors - 18-3440

    $65.99
    0

  11. Sierra Water Pump Kit for Yamaha Outboard Motors - 18-3450

    $138.78
    0

  12. Sierra Water Pump Kit - with Housing - 18-3311

    $105.99
    0

  13. Sierra Water Pump Kit - with Housing for Yamaha Outboard Motors - 18-3396

    $75.99
    0

  14. Sierra Water Pump Housing for Yamaha Outboard Motors - 18-3170

    $30.99
    0

  15. Sierra Water Pump Housing for Yamaha Outboard Motors - 18-3171

    $59.48
    0

  16. Sierra Manifold with Mounting Package - 18-1997-1

    $301.99
    0

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

    $134.99
    0

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

    $87.48
    0

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

    $150.99
    0

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

    $189.99
    0

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

    $69.69
    0

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

    $36.99
    0

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

    $19.99
    0

  24. Sierra Sterndrive & Inboard Oil Filter - 18-7876

    $10.81
    1

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

    $6.79
    0

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

    $109.59
    0

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

    $52.48
    0

  28. Sierra Oil Pan Gasket for Mercruiser Stern Drives - 18-1239

    $123.99
    1

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

    $38.99
    0

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

    $210.99
    0

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

    $18.04
    0

  32. Sierra Thermostat - 120 - 18-3549

    $28.99
    0

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

    $164.48
    0

  34. Sierra 4 Cycle Outboard Oil Filter - 18-7903

    $11.81
    0

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

    $119.99
    0

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

    $27.99
    0

  37. Sierra Water Pump Housing Kit for OMC Sterndrive/Cobra Stern Drives - 18-3348

    $40.99
    1

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

    $63.99
    0

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

    $5.52
    0

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

    $10.85
    0

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

    $467.23
    0

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

    $31.99
    0

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

    $39.99
    0

  44. Sierra O-Ring - 18-7961

    $10.05
    0

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

    $77.34
    0

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

    $30.66
    0

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

    $36.99
    0

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

    $656.23
    0
Previous15 / 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.