Harder liner seals: Cat liner seals are chemically harder than many will-fit products to resist the high combustion pressures of Cat engines. This allows for longer engine life and excellent durability.

Long-lasting material: Cat head gaskets incorporate fire rings made of stainless steel to increase their durability and life while will-fit rings often use cheaper low carbon steel rings. Cat's graphite-facing material significantly improves sealing capability and failure resistance over fiber matrix material seals found in the aftermarket.

Easy installation & removal: Cat seal and gasket one-piece removal avoids time-consuming scraping which can leave behind material affecting future sealability and lowering engine performance. Quick and easy installation and removal results in time and cost savings.

Robust fluid seal: The Cat fluid seal provides the highest level of sealing performance to prevent the entry of unwanted dirt and water or exit of necessary fluids from the engine. The fluid seal also improves bolt torque retention and aids in gasket installation. This results in longer engine wear life and reliable engine performance.

Clear identification: Cat part number is stamped on the genuine Cat seal where many will-fitters lack clear identification markings. This allows for easy and accurate ordering of replacement seals, saving time and frustration