What does '.25 Oversized' mean for these rod bearings?

'.25 Oversized' actually means .25mm undersize. This indicates the bearings are designed to fit crankshaft journals that have been machined down by 0.25mm. This is common practice during engine rebuilds to clean up worn or damaged journals.

Are these bearings suitable for a stock SR20DE engine rebuild?

Yes, these ACL aluminum rod bearings are a popular choice for SR20DE and SR20DET engines, including stock rebuilds. They are a direct replacement for the factory bearings, provided your crankshaft journals are the correct size for a .25mm undersize bearing.

What else might I need when installing these rod bearings?

When installing rod bearings, you'll typically need engine assembly lubricant to coat the bearings and journals before assembly. You'll also need to ensure your crankshaft journals are clean and within specification, and you'll need to torque the connecting rod bolts to the manufacturer's specifications.

1991-1993 Nissan NX Rod Bearings | ACL .25 Oversized

Name: ACL 91-98 Nissan 4 1998cc SR20DE/DET .25 Oversized Aluminum Rod Bearing Set
Brand: ACL
Price: 8.86 USD
Availability: InStock

ACL 91-98 Nissan 4 1998cc SR20DE/DET .25 Oversized Aluminum Rod Bearing Set

$8.86

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 .25 oversized aluminum rod bearings for SR20DE/DET engines. Essential for engine rebuilds.

Key Features

Fits 1991-1993 Nissan NX.
ACL aluminum rod bearing set for SR20DE and SR20DET engines.
Bearings are .25mm undersize, intended for use with a crankshaft machined to match.
Aluminum alloy construction.

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Fits this vehicle

Nissan NX 1991-1993

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 crucial part of that process. Rod bearings sit between the connecting rod and the crankshaft, allowing the rotating assembly to spin smoothly while handling significant loads. When you're refreshing an engine, especially one that's been driven hard or is showing wear, replacing these bearings is a standard and important step to ensure long-term reliability.

This set is .25mm undersized, meaning it's designed to be used when the crankshaft journals have been machined down by .25mm to clean them up or correct wear. ACL is a well-known name in engine bearings, and these are made from aluminum alloy, which offers good performance characteristics for many applications. They fit right into the connecting rods, making them a straightforward replacement during a rebuild.

When you're deep into an engine build, having reliable parts like these bearings makes all the difference. Make sure you have the correct crankshaft journal size before ordering, as these are specifically for a .25mm undersize condition.