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CAT Seals & Gaskets

Genuine & OEM Seals & Gaskets Parts

CAT Seals & Gaskets Parts

Seals and gaskets prevent oil, coolant, fuel and combustion gases escaping between mating surfaces throughout the engine, and almost every joint opened during a repair depends on one. This group covers head gaskets, manifold and cover gaskets, front and rear crankshaft seals, valve stem seals, O-rings and toric seals, and complete upper and lower gasket sets. CAT engines in generator, marine and industrial service run long hours at sustained load, which works sealing faces hard and makes head gasket condition a common finding at overhaul. On the larger 3500 and C175 platforms, individual cylinder heads mean gaskets are replaced per cylinder rather than as a single large item, which changes both the parts list and the job.

AMS Parts supplies a wide range of seals & gaskets components for CAT engines used in power generation, marine, and industrial applications. Browse the full range below, or contact us for specific requirements.

Browse Seals & Gaskets Parts

Browse our range of Seals & Gaskets parts below. Use the search bar above to find a specific part number, or request a quote.

CAT parts
1138433 CAT SEAL-CRANKSHAFT
 CAT parts
1425867 CAT 154.18MM INNER DIAMETER FRONT CRANKSHAFT SEAL
 CAT parts
1550809 CAT SEAL-LINER
 CAT parts
1552793 CAT SEAL-LINER
 CAT parts
1670024 CAT SEAL-LINER
 CAT parts
2172083 CAT Gasket Kit
 CAT parts
2315226 CAT KIT-GASKET-S
 CAT parts
2493329 CAT Seal Kit
 CAT parts
2655327 CAT Gasket W Kit
 CAT parts
2667261 CAT Seal Kit
 CAT parts
2701528 CAT KIT-O-RING
 CAT parts
2788716 CAT Seal Kit
 CAT parts
3134988 CAT Gasket Kit
 CAT parts
3136013 CAT Gasket Kit
 CAT parts
3136412 CAT Gasket Kit
 CAT parts
3139004 CAT KIT-GASKET(W
 CAT parts
3157868 CAT KIT-GASKET(W
 CAT parts
3162521 CAT Gasket Kit
 CAT parts
3162525 CAT KIT-GASKET(R
 CAT parts
3168132 CAT Seal Kit
 CAT parts
3189220 CAT KIT-SEAL-H.C
 CAT parts
3193558 CAT KIT-SEAL-H.C
 CAT parts
3207294 CAT Seal Kit
 CAT parts
3268631 CAT Gasket Kit
 CAT parts
3483295 CAT Gasket Kit
 CAT parts
3488632 CAT Gasket Kit
 CAT parts
3491533 CAT KIT-GASKET(W
 CAT parts
3493941 CAT Gasket Kit
 CAT parts
3550763 CAT Gasket Kit
 CAT parts
3619763 CAT Seal Kit
 CAT parts
3636420 CAT Gasket R Kit
 CAT parts
3638080 CAT Gasket Kit
 CAT parts
3639027 CAT KIT-GASKET(T
 CAT parts
3694712 CAT Seal Kit
 CAT parts
3769011 CAT KIT-SEAL-H.C
 CAT parts
3769012 CAT KIT-SEAL-H.C
 CAT parts
3769017 CAT KIT-SEAL-H.C
 CAT parts
4171903 CAT Gasket Kit
 CAT parts
4198222 CAT Gasket Kit
 CAT parts
4204422 CAT Gasket Kit
 CAT parts
4208545 CAT Gasket Kit
 CAT parts
4251297 CAT Seal Kit
 CAT parts
4251730 CAT Gasket Kit
 CAT parts
4253545 CAT Gasket Kit
 CAT parts
4261769 CAT Gasket Kit
 CAT parts
4351087 CAT Gasket Kit
 CAT parts
4351125 CAT Gasket Kit
 CAT parts
4359420 CAT Gasket Kit
 CAT parts
4363458 CAT Gasket Kit
 CAT parts
4363459 CAT Gasket Kit
 CAT parts
4363460 CAT Gasket Kit
 CAT parts
4365757 CAT Gasket Kit
 CAT parts
4373321 CAT Gasket Kit
 CAT parts
4389634 CAT Gasket Kit
 CAT parts
4437477 CAT Gasket Kit
 CAT parts
4440532 CAT Gasket Kit
 CAT parts
4445208 CAT Gasket Kit
 CAT parts
4456161 CAT Gasket Kit
 CAT parts
4481642 CAT Gasket Kit
 CAT parts
4498559 CAT Gasket Kit
 CAT parts
4499116 CAT Gasket Kit
 CAT parts
4499123 CAT Gasket Kit
 CAT parts
4499769 CAT KIT-GASKET(A
 CAT parts
4500381 CAT Gasket Kit
 CAT parts
4500382 CAT Gasket Kit
 CAT parts
4500383 CAT Gasket Kit
 CAT parts
4500384 CAT Gasket Kit
 CAT parts
4502547 CAT Gasket Kit
 CAT parts
4502548 CAT Gasket Kit
 CAT parts
4513316 CAT Gasket Kit
 CAT parts
4527462 CAT Seal Kit
 CAT parts
4543621 CAT Seal Kit
 CAT parts
4549087 CAT Gasket Kit
 CAT parts
4551697 CAT Gasket Kit
 CAT parts
4560207 CAT Seal Kit
 CAT parts
4572365 CAT Gasket Kit
 CAT parts
4575621 CAT Gasket Kit
 CAT parts
4600714 CAT Gasket Kit
 CAT parts
4600780 CAT Gasket Kit
 CAT parts
4600814 CAT Gasket Kit
 CAT parts
4618699 CAT Gasket Kit
 CAT parts
4618703 CAT Gasket Kit
 CAT parts
4618712 CAT Gasket Kit
 CAT parts
4635167 CAT Gasket Kit
 CAT parts
4640329 CAT Gasket Kit
 CAT parts
4674257 CAT Gasket Kit
 CAT parts
4674258 CAT Gasket Kit
 CAT parts
4679007 CAT Gasket Kit
 CAT parts
4698465 CAT Gasket Kit
 CAT parts
4700402 CAT Gasket Kit
 CAT parts
4718738 CAT Gasket Kit
 CAT parts
4727202 CAT Gasket Kit
 CAT parts
4736492 CAT Gasket Kit
 CAT parts
4739461 CAT Gasket Kit
 CAT parts
4739462 CAT Gasket Kit
 CAT parts
4758997 CAT Gasket Kit
 CAT parts
4761065 CAT Gasket Kit
 CAT parts
4771358 CAT Gasket Kit
 CAT parts
4787882 CAT Gasket Kit
 CAT parts
4799148 CAT Gasket Kit

Frequently Asked Questions

Are gasket sets available for individual cylinders on larger CAT engines?

Yes. The 3500 series and C175 use individual cylinder heads, so head gaskets and seals are supplied per cylinder rather than as one full-width gasket.

What causes head gasket failure on a CAT engine?

Overheating, a distorted or corroded sealing face, incorrect bolt torque or sequence, and sustained overload are the usual causes. The gasket is normally the symptom rather than the root cause.

Should a full gasket set be used for a top-end job?

An upper gasket set covers head and manifold work. A full set is only needed when the engine is split, so specify which level of overhaul is planned when ordering.