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ACL Performance Race Series Rod Bearing Sets 4B4390H-025 Ford2.0L (LF) DuratecMazda2.0L LF MZR (Duratec) 3, MX-5Tri-Metal - .025mm (.001") undersize

SKU: ACL4B4390H-025

Rod Bearings
ACL Performance Race Series Rod Bearing Sets 4B4390H-025 Ford2.0L (LF) DuratecMazda2.0L LF MZR (Duratec) 3, MX-5Tri-Metal - .025mm (.001") undersize
Acl

Acl

ACL Performance Race Series Rod Bearing Sets 4B4390H-025 Ford2.0L (LF) DuratecMazda2.0L LF MZR (Duratec) 3, MX-5Tri-Metal - .025mm (.001") undersize

SKU: ACL4B4390H-025

Rod Bearings
A$93.92
BACKORDER This item will be special ordered in for you. Contact us prior to purchase if you require an ETA.
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Description

ACL Performance offers Race Series rod bearing sets for a wide range of vehicles. These high performance tri-metal engine bearings are designed to withstand higher RPM conditions. They feature a high-strength overlay plate with reduced thickness for improved fatigue properties. Select the crankshaft undersize and quantity recommended for your year/make and engine application.

Additional details:

* Hardened steel backs on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.
* Increased crush for improved bearing retention
* Elimination of flash plating on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing
* Increased eccentricity to compensate for bore distortion at high RPM and to assist in the formation of hydrodynamic oil films
* 3/4 in. grooved main bearings to optimize bearing load carrying surface area and oil flow to the conrod bearings
* Tight consistent wall tolerances to help you maintain consistent clearances
* Enlarged ID chamfers on bearing edges (where required) to accommodate large fillet radius on performance crankshafts

Part Type

Rod Bearings

Data: v4.2 - Upd: 2026-09-27 11:32:03

Specifications

Product Attributes - Brand
ACL Race Series Performance Engine Bearings
Product Attributes - Manufacturer's Part Number
4B4390H-025
Product Attributes - Part Type
Rod Bearings
Product Attributes - Product Line
ACL Performance Race Series Rod Bearing Sets
Product Attributes - UPC
9315726408322
Product Attributes - Bearing Usage
Performance
Product Attributes - Engine Crankshaft Undersize (in.)
0.001 in.
Product Attributes - Engine Crankshaft Undersize (mm)
0.025mm
Product Attributes - Bearing Material
Tri-metal copper-lead alloy
Product Attributes - Dowel Pin Hole
No
Product Attributes - Narrow Bearing
No
Product Attributes - Quantity
Sold as a set of 4.

Reference Information

Brand Name/s Acl
StreetFX SKU acl4B4390H-025
SFX Item ID 4845321
Supplier Item Code 4845321
Manufacturer SKU 4B4390H-025
Manufacturer UPC 9315726408322
Alternative References PEB-4B4390H-025, Ford2.0L, DuratecMazda2.0L, MX-5Tri-Metal, .025mm

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