ACL Performance

Engine Bearings

$64.99

SKU: 5M1959H

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

These bearings feature a high-strength overlay plate with reduced thickness for enhanced fatigue properties and hardened steel backs to improve bearing support and retention within the housing. The design includes increased crush for better retention and the elimination of flash plating on the back to improve heat transfer and ensure maximum grip between the bearing and its housing. Additionally, increased eccentricity helps compensate for bore distortion at high RPMs and aids in the formation of hydrodynamic oil films. The 3/4 grooved main bearings are optimized for load carrying capacity and oil flow to the connecting rod bearings, while tight wall tolerances ensure consistent clearances. Enlarged ID chamfers are included where necessary to accommodate large fillet radii on performance crankshafts. These main bearings are specifically designed for Honda/Acura B18C1 and B18C5 engines, including the 1994-2001 Acura Integra GS-R and the 2000-2001 Acura Integra Type-R. Each set includes all necessary main bearings for a complete engine rebuild. ACL Performance products are manufactured in Australia and come with a manufacturer standard warranty.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandACL Performance
Part Number5M1959H
CategoryEngines and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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