What does '0.50mm undersize' mean for these bearings?

This means the bearings are manufactured to be slightly smaller than the standard size. They are intended for use when the engine's crankshaft journals have been machined down by 0.50mm to remove wear or damage. This ensures the correct oil clearance is maintained after the crankshaft has been resized.

Are these bearings sold individually or as a set?

This product is a set of connecting rod bearings. Typically, a set includes all the bearings needed for all the connecting rods in the engine, but you should always confirm the exact quantity included if you are unsure.

What else might I need when installing these bearings?

When installing connecting rod bearings, especially during an engine rebuild, you will likely need to have your crankshaft journals professionally machined to the correct undersize. It's also critical to follow the manufacturer's torque specifications precisely and ensure proper lubrication during assembly.

2002-2018 Nissan Altima Connecting Rod Bearings

Name: ACL NISSAN QR25DE Engine Connecting Rod Bearing Set
Brand: ACL
SKU: acl-acl-nissan-qr25de-engine-connecting-rod-bearing-set-t14-631324
Price: 21.93 USD
Availability: BackOrder

ACL NISSAN QR25DE Engine Connecting Rod Bearing Set

$21.93

On Backorder

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

Fits 2002-2018 Nissan Altima. ACL QR25DE connecting rod bearings, 0.50mm undersize, for engine rebuilds.

Key Features

Fits 2002-2018 Nissan Altima, 2002-2012 Nissan Sentra, 2005-2019 Nissan Frontier, and 2007-2020 Nissan Rogue.
Designed for the Nissan QR25DE engine.
0.50mm undersize bearing set, intended for use with machined crankshaft journals.
Features ACL's high-performance overlay material for durability.
Helps maintain proper oil clearance for engine lubrication.

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Will this fit your vehicle?

Product Details

ACL has been making engine bearings for decades, and this connecting rod bearing set for your Nissan QR25DE engine is one of their staples. These bearings are crucial for the health of your engine's rotating assembly. They sit between the connecting rod and the crankshaft, providing a smooth surface for the rod to pivot on as the crankshaft turns. When it's time for an engine rebuild or repair, especially if you're dealing with worn bearings or need to machine the crankshaft, a fresh set of bearings is essential.

This particular set is sized at 0.50mm undersize, meaning it's designed to be used when the crankshaft journals have been machined down by 0.50mm to clean up wear or damage. ACL uses a high-performance overlay material that's built to withstand the pressures and heat inside an engine. They're well-built to handle the demands of daily driving and more spirited use, ensuring proper oil clearance and lubrication for your QR25DE engine.

When you're rebuilding an engine, getting the bearing clearance just right is key. This set is designed to fit right into your 2002-2018 Nissan Altima, 2002-2012 Nissan Sentra, 2005-2019 Nissan Frontier, or 2007-2020 Nissan Rogue. Always refer to your vehicle's service manual for the correct installation procedures and torque specifications to ensure your engine rebuild is done correctly.