Simplify Maintenance with Cat® Truck Engine Repair Kits
Ready-to-install kits help take the hassle out of routine service and high-mileage repairs.
Regular maintenance helps keep truck engines rolling, but tracking down every gasket, seal and fastener can slow you down.
Keep it simple with these four Cat® on-highway truck engine repair kits. Instead of ordering parts one by one, you get the right components in a single, convenient, ready-to-install package.
1. Exhaust Manifold Install Kit
Why you need it: A leaking exhaust manifold can reduce fuel efficiency, increase inspection risk and lead to downtime.
What's included: Gaskets, studs, nuts, washers and sleeves required to reseal the manifold.
When to use it: When replacing the turbo, repairing exhaust bellows or addressing a leak.
2. Injector Cup Kit
Why you need it: A failing injector cup can allow fuel and coolant to mix, leading to contamination, performance issues and potential engine damage.
What's included: Injector cups, filters, gaskets and O-ring seals to help protect the cooling and fuel systems.
When to use it: When replacing injectors, when fuel is found in the coolant (or vice versa) or when one cup shows signs of failure. Replacing the set helps prevent repeat repairs.
3. Exhaust Bellows Kit
Why you need it: A defective bellows can hurt engine performance and disrupt exhaust flow.
What’s included: Bellows and V-band clamps to simplify exhaust connection repairs.
When to use it: When replacing a leaking bellows, repairing the manifold or installing a new turbine. Replacing both bellows at the same time can help avoid additional issues.
4. Spacer Plate and Shim Kit
Why you need it: High-mileage engines or cylinder head removal can reveal spacer plate wear or liner protrusion issues that affect engine performance.
What’s included: Spacer plate, head bolts, washers and cylinder liner seat insert.
When to use it: During cylinder head replacement, when counterbores need to be cut or when engine mileage approaches the range where spacer plate wear is more common.
Why Repair Kits Make Sense
Whether you’re maintaining your own truck or supporting customers, repair kits help:
Ensure you're replacing the right components together
Streamline service planning
Reduce time spent sourcing individual parts
Support efficient, reliable repairs
Plus, paying attention to routine maintenance now can help prevent more costly repairs and downtime later.
Watch this video to see exactly what’s included in each kit — and when it makes the most sense to use them.
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