What does 'undersize .75mm' mean for these bearings?

This means the bearings are manufactured to be 0.75 millimeters smaller in diameter than standard size. This is typically used when the crankshaft journals have been machined down (ground) to remove imperfections or to achieve a specific clearance during an engine rebuild.

Are these bearings sold individually or as a set?

This is a set of connecting rod bearings. You get all the bearings needed for your engine's connecting rods in one package.

What is the primary function of connecting rod bearings?

Connecting rod bearings sit between the crankshaft and the connecting rod. Their main job is to reduce friction and wear in this critical rotating assembly, allowing the rod to pivot smoothly around the crank journal.

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Trusted Since 1957

Est. 1957

ACL Nissan 4 1952-2187-2389cc 1968-89 Engine Connecting Rod Bearing Set

Specifications

Brand: ACL
Part #: 4B1171A-.75

ACL Nissan 4 1952-2187-2389cc 1968-89 Engine Connecting Rod Bearing Set

Name: ACL Nissan 4 1952-2187-2389cc 1968-89 Engine Connecting Rod Bearing Set
Brand: ACL
SKU: acl-acl-nissan-4-1952-2187-2389cc-1968-89-engine-connecting-rod-bearing-set-t14-633072
Price: 11.52 USD
Availability: BackOrder

$11.52

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1972-1973 Nissan 620 Pickup. ACL connecting rod bearings for 1952-2187-2389cc engines. Undersize .75mm.

Key Features

Fits 1972-1973 Nissan 620 Pickup.
ACL connecting rod bearing set for 1952-2187-2389cc engines.
Undersize .75mm for crankshaft regrinding.
Well-built for reliable engine performance.

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Fits this vehicle

Nissan 620 Pickup 1972-1973

Product Details

Already running a built engine or looking to refresh your Nissan 620 Pickup's internals? This set of connecting rod bearings from ACL is designed to fit your 1972-1973 model. These bearings are crucial for reducing friction between the connecting rod and the crankshaft, ensuring smooth operation and longevity for your engine.

This particular set is undersized by .75mm, which is important if you've had your crankshaft ground down during a rebuild. ACL is known for making well-built engine bearings, and this set is no exception. They are made to precise tolerances to ensure a proper fit and function within the engine's rotating assembly.