This crankshaft main bearing set is essential for supporting the rotating crankshaft within the engine block, minimizing friction and wear. Manufactured to precise tolerances using high-quality bearing materials, it offers superior durability and load-carrying capacity over worn bearings that have developed excessive clearance. Operators may observe increased engine noise, particularly a deep knocking sound from the lower end, and potentially a drop in oil pressure when these bearings begin to fail.
Always verify with serial number before ordering.
Parts Trading Company · Mumbai, Est. 1956 · Same-day dispatch · Ships worldwide · GST invoice included
From the same category — may also be needed
Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India
Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
The initial symptom of failing main bearings is often an increase in low-frequency knocking or rumbling noises from the bottom of the engine, especially under load. As wear progresses, this noise becomes more pronounced, and a significant drop in oil pressure may be observed. Continued operation with worn main bearings can lead to catastrophic crankshaft and block damage due to excessive movement and heat generation.
Ensure the crankshaft and bearing bores are meticulously cleaned and free of any debris before installation. Never reuse old bearing cap bolts; always use new ones to ensure proper clamping force.
Inspect the crankshaft journals for any signs of scoring or ovality, and check the connecting rod bearings for wear.