What does 'BiMetal' construction mean for these bearings?

BiMetal construction means the bearing has a layered design, typically with a steel backing for strength and a babbitt or aluminum alloy overlay that contacts the crankshaft. This combination offers good wear resistance and heat transfer.

Why is the bearing set sized at 0.020 inches undersize?

This set is 0.020 inches undersize, which is intended for use with a crankshaft that has been machined down by that amount. This allows for a fresh bearing surface and proper clearance on a worn or reconditioned crankshaft.

What is the primary function of connecting rod bearings?

Connecting rod bearings are crucial components that sit between the connecting rod and the crankshaft. They allow the connecting rod to pivot smoothly around the crankshaft journal while supporting the immense forces generated during combustion and power delivery.

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Specifications

Brand: King Engine Bearings
Part #: CR4483AM020
UPC: 611500136825

King Engine Bearings Fiat 147 OE Replacement BiMetal Connecting Rod Bearing Set

Name: King Engine Bearings Fiat 147 OE Replacement BiMetal Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-fiat-147-oe-replacement-bimetal-connec-t14-847642
Price: 39.14 USD
Availability: BackOrder

$39.14

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King Engine Bearings Fiat 147 OE Replacement BiMetal Connecting Rod Bearing Set. BiMetal construction for reliable engine performance.

Key Features

BiMetal (aluminum base) connecting rod bearing set.
OE replacement design for Fiat 147.
0.020 inch undersize bearing set.

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About this part

Product Details

If you're rebuilding the engine in your Fiat 147, getting the connecting rod bearings right is crucial for smooth operation and longevity. These are the bearings that sit between the connecting rod and the crankshaft, allowing them to rotate freely while handling significant loads. King Engine Bearings offers this set specifically designed as an OE replacement, meaning they aim to meet or exceed the original factory specifications.

These bearings are constructed with a bimetal design, which uses an aluminum base. This material choice is common in modern engine bearings because it offers good conformability to the crankshaft surface and effective heat dissipation. Having a well-matched bearing surface is key to preventing premature wear and ensuring the oil film can do its job properly. This set is sized at 0.020 inches undersize, which is important to note if you are re-machining your crankshaft.