What does the '.75 Oversize' mean for these rod bearings?

The '.75 Oversize' designation means these bearings are thicker than standard bearings by 0.75mm. This size is used when the crankshaft journals have been machined down (ground) to this specific undersize dimension during an engine rebuild.

Are these bearings suitable for a stock SR20DE engine rebuild?

These bearings are suitable for an SR20DE or SR20DET engine rebuild if the crankshaft journals have been machined to the 0.75mm oversize specification. If your crankshaft is still at standard size, you would need standard size bearings.

What is the advantage of aluminum alloy bearings?

Aluminum alloy bearings offer good thermal conductivity, meaning they dissipate heat well. They also have good conformability, allowing them to adapt to the crankshaft surface for a consistent oil film and reliable lubrication.

1991-1993 Nissan NX Rod Bearings | ACL .75 Oversize

Name: ACL 91-98 Nissan 4 1998cc SR20DE/DET .75 Oversized Aluminum Rod Bearing Set
Brand: ACL
SKU: acl-acl-91-98-nissan-4-1998cc-sr20de-det-75-oversized-aluminum-rod-bearing-set-t14-555883
Price: 9.92 USD
Availability: BackOrder

ACL 91-98 Nissan 4 1998cc SR20DE/DET .75 Oversized Aluminum Rod Bearing Set

$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 .75mm oversize aluminum rod bearings for SR20DE/DET engines. Essential for engine rebuilds.

Key Features

Fits 1991-1993 Nissan NX.
Designed for SR20DE and SR20DET engines.
Set of aluminum rod bearings.
Bearings are 0.75mm oversize for machined crankshaft journals.
ACL is a popular brand for engine components.

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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 proper oil clearance and smooth operation. When you're rebuilding an engine, especially one that's seen some miles or is being pushed harder, getting the bearing clearances just right is key to longevity and performance. These bearings are specifically sized at 0.75mm oversize to accommodate crankshaft journals that may have been ground down during a rebuild or to achieve a specific, tighter oil clearance.

ACL is a well-known name in performance engine bearings, and these are made from aluminum alloy, which offers good thermal conductivity and conformability. This means they can handle the heat generated during operation and adapt slightly to the crankshaft's surface for a solid oil film. Because they are 0.75mm oversize, they are intended for use when the crankshaft journals have been machined to this specific size. Always ensure your crankshaft journals are prepped and measured correctly before installing oversize bearings like these.

When you're putting an engine back together, every part matters. These ACL rod bearings are a solid option for your SR20 rebuild, helping you achieve the correct clearances for reliable performance. Make sure to follow the manufacturer's installation instructions and use the appropriate assembly lube.