Fuel

  1. 19% off

    ValvTect BioGuard Diesel Plus 6 Fuel Treatment - 32 oz - BGDP632

    $73.60
    $59.00
    1
  2. 9% off

    Sierra EPA Primer Bulb - 5/16" - 18-8004EP-1

    $37.08
    $33.43
    0
  3. 19% off

    ValvTect Marine Gasoline Additive

    $7.90 - $42.94
    $6.44 - $34.47
    1
  4. 9% off

    Sierra Fuel/Water Separator - 18-7945

    $13.59
    $12.29
    0
  5. 9% off

    Sierra EPA Primer Bulb - 3/8" - 18-8005EP-1

    $40.00
    $36.06
    1
  6. 14% off

    Vetus Breather Nipple Tank Vent - 3/4"

    $63.36 - $64.82
    $53.95 - $58.40
    0
  7. 9% off

    Vetus Breather Nipple - Angled Tank Vent - 1" - AB25B

    $66.28
    $59.71
    1
  8. 9% off

    Sierra Mercruiser Carburetor - 18-7370N

    $505.78
    $455.26
  9. 9% off

    Sierra Universal EPA Fuel Line Assembly

    $73.60 - $85.28
    $66.30 - $76.81
  10. 14% off

    Vetus No-Smell Filter with Connections

    $137.82 - $193.30
    $117.24 - $170.09
  11. 9% off

    Sierra Fuel Water Separator Kit - 18-7984-1

    $111.58
    $100.48
  12. 9% off

    Vetus Breather Nipple Tank Vent - 5/8"

    $44.38 - $45.84
    $40.00 - $41.32
    0
  13. 14% off

    Vetus Fuel Filter Water Separator

    $108.62 - $120.30
    $92.42 - $102.35
  14. 9% off

    Sierra Fuel Water Separator Kit - 18-7982-2

    $67.77
    $61.05
  15. 9% off

    Sierra Mercury EPA Fuel Line Assembly - 18-8024EP-2

    $76.50
    $68.91
  16. 9% off

    Sierra Fuel Filter - 23-7770

    $31.24
    $28.18
  17. 14% off

    Vetus Water Separator/Fuel Filter

    $203.52 - $669.26
    $173.08 - $568.96
  18. 9% off

    Sierra Yamaha Fuel Filter - 18-79799

    $25.78
    $23.27
  19. 9% off

    Sierra Yanmar Diesel Fuel Filter Element - 18-79960

    $13.81
    $12.50
  20. 9% off

    Sierra Mercury Inline Fuel Filter - 18-79965

    $18.59
    $16.79
  21. 9% off

    Sierra Diesel Fuel Water Separator Kit - 18-99299

    $107.18
    $96.53
  22. 19% off

    ValvTect Diesel Guard Supreme Plus High Performance Diesel Additive - DFMS32

    $37.10
    $29.80
    1
  23. 14% off

    Vetus Diesel Inspection Lid - ILT120B

    $132.00
    $112.29
  24. 14% off

    Vetus Spare Filter Element for No-Smell Filter - Small - NSF16FES

    $23.84
    $20.35
  25. 9% off

    Vetus Breather Nipple - Angled Tank Vent - 1 1/2" - AB38B

    $83.80
    $75.48
    0
  26. 9% off

    Sierra Yamaha Fuel Pump Drive Belt - 18-15145

    $47.30
    $42.63
  27. 9% off

    Sierra Mercruiser Fuel Pressure Regulator - 18-33207

    $315.94
    $284.41
  28. 9% off

    Sierra Mercruiser Fuel Pressure Regulator - 18-33211

    $102.78
    $92.56
  29. 9% off

    Sierra Yamaha Fuel Pump Assembly - 18-35302

    $114.46
    $103.08
  30. 9% off

    Sierra Mercruiser Fuel Pump - 18-35437

    $237.12
    $213.46
  31. 9% off

    Sierra Remote Vent Kit - 18-369-RVK15

    $280.94
    $252.91
  32. 9% off

    Sierra Yamaha Outboard Carburetor Kit - 18-7002

    $48.76
    $43.95
  33. 9% off

    Sierra Mercury Outboard Carburetor Gasket Kit - 18-7005

    $12.53
    $11.33
  34. 9% off

    Sierra Mercury Outboard Carburetor Kit - 18-7013

    $32.70
    $29.49
  35. Sierra Honda Carburetor Kit - 18-7050

    $75.04
  36. 9% off

    Sierra Honda Carburetor Kit - 18-7052

    $69.20
    $62.34
  37. 9% off

    Sierra Honda Carburetor Kit - 18-7053

    $50.22
    $45.26
  38. 9% off

    Sierra Yamaha Carburetor Kit - 18-7058

    $41.46
    $37.38
  39. 9% off

    Sierra OMC Carburetor Kit - 18-7070

    $37.08
    $33.43
  40. 9% off

    Sierra OMC Carburetor Kit - 18-7237

    $133.44
    $120.16
  41. 9% off

    Sierra OMC Carburetor Kit - 18-7242

    $153.88
    $138.55
  42. 9% off

    Sierra OMC Carburetor Kit - 18-7245

    $150.96
    $135.93
  43. 9% off

    Sierra Mercruiser Fuel Pump - 18-7256

    $276.54
    $248.94
  44. 9% off

    Sierra Mercruiser Fuel Pump - 18-7266

    $339.33
    $305.46
  45. 9% off

    Sierra GM V-8 Fuel Pump - 18-7270

    $384.59
    $346.19
  46. 9% off

    Sierra Mercruiser Fuel Pump - 18-7288-1

    $221.06
    $199.02
  47. 9% off

    Sierra Electric Fuel Pump - 18-7332

    $327.65
    $294.95
  48. 9% off

    Sierra Yamaha Fuel Pump - 18-7334

    $54.60
    $49.20
 
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About Fuel

Boat Fuel Tanks and Fuel System Products

Fuel is the lifeblood of your boat and Defender offers a full line of parts associated with fueling your engine. Hose, fuel lines, filters, and separators as well as fittings and primer bulbs are all available at Defender. Boat fuel tanks for above and below decks include flexible tanks, portable tanks, and heavy-duty polyethylene which can rival aluminum tanks in some applications.