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Caterpillar · Engine
5H7704
In stock · ships from Knoxville
This is a silicone O-ring seal that fits the 90-degree turbo compressor housing elbow on many Caterpillar diesel engines.
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Verified fitment for 6 applications
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Caterpillar
Caterpillar
For the 90° aluminum compressor housing elbow on turbochargers of the listed engines. Two O-rings are required to seal the elbow (order 2 for a complete elbow reseal).
Part data verified against 5 catalog sources
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It seals the intake elbow to the turbocharger outlet, preventing boost pressure leaks. When the O-ring hardens, cracks, or flattens, it can cause loss of turbo boost, reduced power, and black smoke, so it is replaced during turbocharger or elbow service. Typically two O-rings are needed to reseal the complete elbow assembly.
Part Number: 5H7704
INTAKE SEAL
Dealer: Knox Trailers
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