Problem: A leaking manifold makes your engine work harder, reducing fuel mileage and potentially leaking fumes into the cab. It can cost you extra during an inspection and even put you out of service.

Solution: The Cat^® exhaust manifold install kit is a quick, easy option for repairing your exhaust system. It contains new gaskets, nuts, studs, washers and exhaust manifold sleeves — everything required to stop a leaking exhaust manifold from costing you downtime and fuel.

Recommended use: When it’s time to reseal the manifold, replace the turbo or repair the exhaust bellows.

Problem: A failing injector cup can leak fuel into your cooling system or vice versa — and fuel and coolant don’t mix.

Solution: A simple way to protect your cooling system is with the Cat injector cup kit, which comes complete with new filters, gaskets, O-ring seals and injector sleeves.

Recommended use: When you replace injectors, discover fuel in your coolant or experience a leak with any cup.

Problem: One defective bellows can throw your entire engine out of order, diminishing performance and putting a damper on your drive.

Solution: The Cat exhaust bellows kit makes repairing those connections simple with a new bellows or expansion joints and V-band clamps included.

Recommended use: When you replace the bellows, repair the manifold or install a new turbo.

Problem: When you remove your engine’s cylinder head, you may find your spacer plate is pitted or not flat. Or you may discover the liner protrusion of your cylinder liners no longer meets specs.

Solution: The Cat spacer plate and shim kit offers a convenient way to solve these problems, especially after you cut your block’s counterbores. It includes a spacer plate, head bolts, washers and .032-inch cylinder liner seat inserts, the most popular size available.

Recommended use: When you’re completing a cylinder head replacement, when you’ve pulled the head and the counterbores need to be cut or when your engine tops 750,000 miles — generally when spacer plate issues begin to occur.