CUMMINS REPAIR: Cummins 6.7L Special Gasket Repair Kits (4955229 & 4955230)

CUMMINS REPAIR is key to keeping the 6.7L engine durable and high-performing. As a core power unit, this engine is widely used in heavy-duty trucks, construction machinery and various commercial vehicles around the world. and a smooth engine overhaul relies on OEM,and the Cummins 6.7L gasket repair kits—split into upper and lower versions—are the core components for quality CUMMINS REPAIR. Designed specifically to seal critical engine parts, these kits effectively prevent oil, coolant leaks and gas blow-by, avoiding extra costs from rework later on. They fit all 6.7L variants including ISB6.7, QSB6.7 and B6.7,

CUMMINS REPAIR for the upper (cylinder head) section of the 6.7L engine calls for the dedicated Cummins 6.7L UPPER GASKET KIT, Part No. 4955229, manufactured strictly to Cummins OEM technical standards. This kit includes all the gaskets and seals needed for the cylinder head, valve cover, intake and exhaust manifolds, as well as fuel and coolant lines. Made of high-temperature, oil and chemical-resistant reinforced rubber and metal core materials, it delivers a perfect seal even under the extreme operating conditions of heavy-duty work. It’s the top choice for cylinder head rebuilding, valve service and fixing upper engine leaks, and a must-have for professional

CUMMINS REPAIR for the lower (engine block) section of the 6.7L engine centers on the Cummins 6.7L LOWER GASKET KIT, Part No. 4955230, which offers a one-stop sealing solution for engine block and lower engine overhauls. This kit covers all core gaskets and seals for the engine block, oil pan, timing cover, front and rear main oil seals, as well as water pump and oil cooler connections, targeting the most common leak points in the lower 6.7L engine. Crafted from high-quality wear-resistant materials, it’s suitable for oil pan replacement, main seal repair and full lower engine overhauls, achieving OEM-standard sealing performance and providing long-term stable operation for engines after CUMMINS REPAIR

CUMMINS REPAIR efficiency is greatly boosted by the split design of these 6.7L repair kits (4955229 + 4955230), offering great flexibility for both partial and full engine repairs. Technicians can purchase parts individually based on actual needs: choose the 4955229 upper kit for only upper engine fault repairs, and the 4955230 lower kit for just lower engine issues.For a full 6.7L engine rebuild, combining both kits provides a complete set of OEM gaskets with no wasted parts—cutting inventory costs for repair shops and simplifying the entire CUMMINS REPAIR process. The clear OEM part numbers also save technicians and parts buyers from confusion when sourcing.

CUMMINS REPAIR results all come down to using OEM-certified parts like these 4955229 and 4955230 gasket kits. Generic aftermarket kits are mostly made of inferior materials that age and fail prematurely, not only causing repeated engine leaks and reduced power efficiency, but also leading to high secondary repair costs.In contrast, these Cummins OEM kits have passed rigorous working condition tests, standing up to harsh operating environments such as long-haul freight and construction site work. They ensure CUMMINS REPAIR is done right the first time, minimizing equipment downtime and effectively extending the overall service life of the 6.7L engine.