What does '.50 Oversized' mean for these rod bearings?

This means the bearings are designed to fit crankshaft journals that have been machined down by 0.50mm. This is common during an engine rebuild to clean up wear or damage on the crankshaft.

Are these bearings suitable for a stock SR20 engine rebuild?

These bearings are specifically .50mm oversized. If your crankshaft is still at its original factory size, you will need a standard size bearing set. Always confirm your crankshaft journal size before ordering.

What is the advantage of aluminum rod bearings?

Aluminum alloy bearings offer good thermal conductivity and conformability. This helps them handle engine heat and maintain a consistent oil film, which is important for protecting the crankshaft and connecting rod.

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Trusted Since 1957

Est. 1957

Specifications

Brand: ACL
Part #: 4B2960A-.50
UPC: 847777013914

ACL 91-98 Nissan 4 1998cc SR20DE/DET .50 Oversized Aluminum Rod Bearing Set

Name: ACL 91-98 Nissan 4 1998cc SR20DE/DET .50 Oversized Aluminum Rod Bearing Set
Brand: ACL
SKU: acl-acl-91-98-nissan-4-1998cc-sr20de-det-50-oversized-aluminum-rod-bearing-set-t14-4336723
Price: 9.92 USD
Availability: BackOrder

$9.92

On Backorder

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

Fits 1991-1993 Nissan NX. ACL .50mm oversized aluminum rod bearings for SR20DE/DET engines. Essential for engine rebuilds.

Key Features

Fits 1991-1993 Nissan NX.
Designed for 1998cc SR20DE and SR20DET engines.
Set includes .50mm oversized aluminum rod bearings.
ACL is a popular brand for engine bearings.

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Will it fit your car?

Fits these vehicles

Nissan NX 1991-1993

About this part

Product Details

Doing an engine rebuild on your 1991-1993 Nissan NX with the SR20DE or SR20DET engine? These ACL aluminum rod bearings are a critical component for ensuring your engine runs smoothly after the rebuild. They sit between the connecting rod and the crankshaft, allowing the rod to spin freely while handling the immense forces generated during combustion. Because they are a wear item, replacing them during an engine overhaul is standard practice to prevent premature failure.

This set is specifically .50mm oversized, meaning they are designed to be used when the crankshaft journals have been machined down by 0.50mm to clean up any wear or damage. The aluminum alloy construction offers good thermal conductivity and conformability, which helps to absorb shock loads and maintain oil film integrity. ACL is a well-known name in engine bearings, and these are a solid option for anyone looking to get their SR20 back in top running condition.