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Caterpillar

Caterpillar Diesel Marine Engines & Genuine Parts

Explore our wide selection of genuine Caterpillar diesel parts for marine engines, featuring CAT’s distinctive yellow paint. Our inventory includes fuel filters, oil filters, impellers, engine gaskets, cooling components, zinc anodes and other essential parts to maintain peak performance and reliability for your CAT marine engine.

All (135)
Caterpillar Parts By Engine Model (445)
Caterpillar Air Filters (7)
Caterpillar Belts (9)
Caterpillar Crankcase Ventilation Filters (6)
Caterpillar Engine Parts (8)
Caterpillar Exhaust (4)
Caterpillar Fuel Filters (9)
Caterpillar Gaskets, Seals and O-Rings (47)
Caterpillar Hoses (9)
Caterpillar Impellers (1)
Caterpillar Oil Filters (16)
Caterpillar Sea Water Pump Parts (6)
Caterpillar Sea Water Pumps (1)
Caterpillar Sensors (2)
Caterpillar Thermostats (2)
Caterpillar Uncategorised (11)
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  • Genuine CAT 6L-8788 Water Pump Bearing Seal Genuine CAT 6L-8788 Water Pump Bearing Seal

    Genuine CAT 6L-8788 Water Pump Bearing Seal

    Genuine Caterpillar bearing seals are important components of water pumps, which circulate coolant throughout engine blocks to maintain engine temperature For 3208 4L-9070 raw water pumps 101.6mm Width12.7mm Height114.3mm Length Genuine CAT 6L-8788 Water...

    $7.92
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  • Genuine CAT 449-2872 Expansion Tank Cap 7psi Genuine CAT 449-2872 Expansion Tank Cap 7psi

    Genuine CAT 449-2872 Expansion Tank Cap 7psi

    Genuine Caterpillar 7psi radiator cap for C6.6, C4.4, C2.2 and C1.5 marine generators. Used on expansion tank. 71mm OD33mm Height50kpa 7psi Genuine CAT 449-2872 Expansion Tank Cap 7psi

    $95.95
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  • Genuine CAT 3K-0360 O-Ring

    Genuine CAT 3K-0360 O-Ring

    Genuine Caterpillar O-ring suitable for use with fuel, oil and water systems 20.78mm OD16.36mm ID Genuine CAT 3K-0360 O-Ring

    $3.42
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  • Genuine CAT 4L-8337 Air Line O-Ring

    Genuine CAT 4L-8337 Air Line O-Ring

    Genuine Caterpillar air line O-ring for use with various aftercooler and intake systems on 3208 3306 3412 3408 3408B 3408C 3406B 3406C 3306B 3412C 3412E 3304B Genuine CAT 4L-8337 Air Line O-Ring

    $20.77
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  • Genuine CAT 310-3953 O-Ring Seal

    Genuine CAT 310-3953 O-Ring Seal

    Genuine Caterpillar O-ring using on various hard pipes as O-ring sealing ends. Suitable for intake and aftercooler systems. 3512C 3516 3512 3508 3126B 3512B C9.3 C9 C7 Genuine CAT 310-3953 O-Ring Seal    

    $94.63
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  • Genuine CAT 5F-3999 O-Ring Seal

    Genuine CAT 5F-3999 O-Ring Seal

    Genuine Caterpillar O-ring used on hand fuel priming pumps and water pumps 123.42mm ID130.48mm OD Genuine CAT 5F-3999 O-Ring Seal

    $21.18
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  • Genuine CAT 2M-9780 O-Ring Seal

    Genuine CAT 2M-9780 O-Ring Seal

    Genuine Caterpillar O-ring for 3508B 3512 3516 3612 3616 C32 3516B 3516C 3412 3408 3406 3512B 3508 C9 3208 3408B 3406B Genuine CAT 2M-9780 O-Ring Seal

    $3.01
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  • Genuine CAT 101-3626 O-Ring

    Genuine CAT 101-3626 O-Ring

    Genuine Caterpillar O-Ring replaced by 214-7568 3516 3512 3508 3126B 3508C 3508B 3516B 3516C 3512C 3512B C9 C7   Genuine CAT 101-3626 O-Ring

    $5.32
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  • Genuine CAT 033-6028 O-Ring

    Genuine CAT 033-6028 O-Ring

    Genuine Caterpillar 3208, C18, 3508C, 3516C, 3516E, 3512C, 3512E, C32 and 3508C O-ring Applications: High pressure, high temperature applications requiring resistance to air, fuels, lubricants and hydraulic fluids 16.36mm ID Genuine CAT 033-6028...

    $3.63
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  • Genuine CAT 2H-3931 Oil Cooler Flange Gasket

    Genuine CAT 2H-3931 Oil Cooler Flange Gasket

    Genuine Caterpillar 3512, 3516, 3208, 3408B, 3408, 3406, 3406B and 3508 oil cooler flange O-ring gaskets 89.2mm OD82.14mm ID Genuine CAT 2H-3931 Oil Cooler Flange Gasket

    $17.18
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  • Genuine CAT 099-0187 Rubber O-Ring Seal Genuine CAT 099-0187 Rubber O-Ring Seal

    Genuine CAT 099-0187 Rubber O-Ring Seal

    Genuine Caterpillar Rubber O-Ring Seal for Heat Exchanger and Auxiliary Sea Water Lines on C7 and C9 models Genuine CAT 099-0187 Rubber O-Ring Seal

    $10.85
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