ACL Bearings Main Bearing Set (AEB4B1972H-STD)

ACL Race Series Connecting Rod Bearing Set, Standard — 4B1972H-STD

Brand: ACL Bearings

Price: $46.99 USD

Purchase details

Fitment: Check your exact vehicle and all application restrictions. View fitment details.

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Questions about this product?

Fitment

Choose your exact year, make, model, and trim to review this product’s applications.

Description

ACL 4B1972H-STD is a standard-size Race Series connecting-rod bearing set.

Technical specifications

Bearing type Connecting rod Size STD Housing bore 51.004–51.024 mm Shaft diameter 47.980–48.000 mm Maximum wall thickness 1.500 mm Maximum length 15.40 mm Application and compatibility

Applications include selected K20A2, K20Z1, K24A and K24Z1 engines. K20A3 uses a different rod-bearing set.

Manufacturer documents

ACL Race Series application and technical guide

ACL oil-clearance and bearing guidance

Key features

  • ACL Race Series connecting-rod bearing set
  • Standard journal size
  • H identifies the ACL Race Series grade

Specifications

General

Manufacturer part number4B1972H-STD

What's in the box

  • Connecting-rod bearing set

Install & Results

At a glance

  • Have the engine builder measure the journals and installed oil clearances. Standard size identifies the bearing size, not a guarantee of the finished engine's oil clearance.