What does 'extra oil clearance' mean for my engine?

Extra oil clearance means there's a slightly larger gap between the rod bearing and the crankshaft journal. This allows for more oil to flow through, which is beneficial in high-performance or high-RPM engines to help keep parts cool and lubricated.

Do these bearings come with new rod bolts?

This product listing is for the rod bearings only. New rod bolts are typically recommended or required when replacing rod bearings, especially in performance builds, and are usually sold separately.

What is the difference between standard size and undersize bearings?

Standard size bearings are meant for crankshafts that are within factory specifications. Undersize bearings (like -010 or -020) are used when a crankshaft has been machined down to correct wear or runout, requiring a smaller bearing to maintain proper clearance.

ACL Nissan KA24DE Inline 4 Standard Size High Performance w/ Extra Oil Clearance Rod Bearing

Specifications

Brand: ACL
Part #: 4B2746HX-STD
UPC: 9315726443965

ACL Nissan KA24DE Inline 4 Standard Size High Performance w/ Extra Oil Clearance Rod Bearing

Name: ACL Nissan KA24DE Inline 4 Standard Size High Performance w/ Extra Oil Clearance Rod Bearing
Brand: ACL
Price: 51.00 USD
Availability: InStock

$51.00

In Stock

Key Features

Fits 1989-1998 Nissan 240SX, 1993-2001 Nissan Altima, 1990 Nissan Axxess, 1990-1994 Nissan D21, 1998-2004 Nissan Frontier, 1995-1997 Nissan Pickup, 1990-1992 Nissan Stanza, and 2000-2004 Nissan Xterra.
Standard size bearings for use with a factory-spec or freshly machined crankshaft.
Features extra oil clearance to accommodate increased engine loads and higher RPMs.
Constructed with a high-strength overlay material for improved durability in performance applications.
Designed for the Nissan KA24DE inline 4-cylinder engine.

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Will this fit your vehicle?

Product Details

Already running a modified KA24DE engine? This set of ACL high-performance rod bearings is the next piece of the puzzle. These bearings are designed with extra oil clearance, which is crucial when you've increased engine power or are running your engine harder than stock. Proper oil clearance helps ensure that your engine's moving parts are adequately lubricated, reducing friction and heat buildup, especially under demanding conditions.

ACL has been making engine bearings for a long time, and these are well-built for performance applications. They use a specialized overlay material that's known for its strength and ability to handle higher loads. The standard size means they're intended for use with a crankshaft that hasn't been machined undersize, making them a straightforward replacement if your crank is still within factory specifications. If you're building a performance KA24DE, getting the oil clearance right is key to reliability, and these bearings give you that margin.

This set includes bearings for all the rods in your KA24DE engine. Make sure to check your crankshaft's journal size and condition before installation; if the journals have been ground undersize, you'll need a different bearing size. Always follow the manufacturer's torque specifications and lubrication procedures when installing new rod bearings.