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Acl

Acl

ACL BMW N54/N55/S55B30 3.0L Standard Size w/ Extra Oil Clearance Main Bearing Set

SKU: ACL7M1397HX-STD

Main Bearings

ACL Race Series Main Bearings...

Acl

Acl

ACL BMW N54/N55/S55B30 3.0L Standard Size w/ Extra Oil Clearance Main Bearing Set

SKU: ACL7M1397HX-STD

Main Bearings

ACL Race Series Main Bearings...

A$641.27
IN STOCK! Est Ship 3-5 days. In stock at 1 location (5 available)

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Description

ACL BMW N54/N55/S55B30 3.0L Standard Size w/ Extra Oil Clearance Main Bearing Set

Product Overview

ACL BMW N54/N55/S55B30 3.0L Standard Size w/ Extra Oil Clearance Main Bearing Set


Data: v2 - Desc: v4.2 - Upd: 2026-11-07 15:29:01

Data: v4.2 - Upd: 2026-11-09 00:12:28

Features

Important Note Regarding Oils, Additives, Aerosols & Liquids

This listing may contain a product with transport restrictions. Items containing oils, additives, aerosols, adhesive or other liquid/chemical-based products may be subject to shipping restrictions depending on their current warehouse location, carrier requirements, and applicable transport regulations.

Some liquid and aerosol products are restricted for air freight or certain road freight routes and may require alternative transport methods or dispatch from a specific warehouse. While the majority of these items ship without issue, these factors can occasionally affect available shipping options or delivery timeframes.

If you are working to a tight deadline, require urgent delivery, or are unsure whether a product can be shipped to your location, we recommend contacting the StreetFX team prior to placing your order so we can confirm availability and the most suitable freight option.

(keyword: oil)

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Description:BMW S55B30 2979cc Inline6 DOHC 4v Twin Turbo
Grade Type:Performance
Max Wall:0.0982
Outside Diameter:2.7559
Part Number:acl7M1397HX-STD
Shaft Diameter:2.5575
Width:0.781

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Acl, ACL BEARINGS, Acl Race Series Performance Engine Bearings
StreetFX SKU acl7M1397HX-STD
SFX Item ID 4073239
Accounting SKU acl-7M1397HX-STD
Manufacturer SKU 7M1397HX-STD
Manufacturer UPC 9315726463086
Alternative References 7M1397HX-STD, PEB-7M1397HX-STD

BMWN54B30, N55B30 (3.0L)S55B30 (3.0L) Inline 6, M3 F80 / M4 F82/F83Tri-Metal - Standard - Extra .001" oil clearance

ACL Performance Race Series main bearing sets deliver everything performance bearings should be by utilizing design, metallurgy, engineering, precision quality control, and of course, years of knowledge and experience.

Main bearings feature multi-layered tri-metal copper alloy construction that blends characteristics to provide high strength and excellent seizure resistance. They are manufactured to exact tolerances ensuring a reliable fit and helping to maintain consistent clearances. Main bearings are augmented with extended grooves, as well as other bearing enhancements, like increased crush, bearing eccentricity, and enlarged I.D. chamfers.

ACL Performance Race Series main bearing sets are produced in standard and extra clearance versions, with or without friction reducer coating, and with modifications to meet specific build requirements, such as narrowed bearings that permit additional edge clearance when running crankshafts with exceptionally large fillet radii.

In the heat of competition proven technology always comes through. The choice for your build should always be ACL Performance Race Series engine bearings. Choose the main bearing set designed for your vehicle.

Product Attributes
BrandACL Race Series Performance Engine Bearings
Manufacturer's Part Number7M1397HX-STD
Part TypeMain Bearings
Product LineACL Performance Race Series Main Bearing Sets
UPC9315726463086
Bearing UsagePerformance
Engine Crankshaft Undersize (in.)Stock
Engine Crankshaft Undersize (mm)Stock
Grooved BearingYes
Groove LocationUpper and lower
Groove Style3/4
Thrust Bearing OversizeStock
Bearing MaterialTri-metal copper-lead alloy
QuantitySold as a set of 7.
Notes.0005 in. thinner wall bearing for .001 in. extra oil clearance.

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