Description
AFA 20045 Counter Bore Shim
Precision‑machined engine block shim designed to properly set cylinder liner height in heavy‑duty diesel engines. With a thickness of 0.062 inches, this shim is used during engine rebuilds or repairs to restore correct counterbore depth and ensure a proper head gasket seal.
Manufactured by AFA Industries, the AFA 20045 is engineered to meet or exceed OEM specifications for Detroit Diesel applications, most commonly Detroit Diesel Series 60 engines. Correct liner protrusion is critical for maintaining compression, preventing coolant or combustion leaks, and ensuring long engine service life.
This counter bore shim is fabricated from durable, heat‑resistant material to withstand the extreme pressures and temperatures found in diesel engine operation. It is an essential component for professional engine builders and repair technicians performing block machining corrections or liner height adjustments.
Key Features
Precision 0.062 inch thickness
Designed for accurate liner height correction
Maintains proper head gasket sealing
Heavy‑duty construction for diesel engine use
OEM‑equivalent quality
Applications
Detroit Diesel Series 60 engines
Heavy‑duty truck engine rebuilds
Counterbore repair and liner height adjustments
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