What is the main purpose of rod bearings?

Rod bearings sit between the crankshaft and the connecting rod. Their main job is to reduce friction and wear in this critical rotating assembly, allowing the crankshaft to spin freely while the connecting rod moves up and down.

Are these bearings suitable for a stock engine, or only for performance builds?

While these bearings are often chosen for performance builds due to their robust construction, they are also a reliable standard-size replacement for stock engines. If your B58 or S58 engine requires new rod bearings, these will serve well for both daily driving and more demanding use.

Do I need any special tools or parts to install these rod bearings?

Installation requires engine disassembly, including removing the oil pan and connecting rod caps. It's recommended to have a torque wrench to ensure proper tightening specifications are met, and always refer to the manufacturer's service manual for the correct procedure.

2016-2018 BMW 340i Rod Bearings | ACL 6B1510H-STD

Name: ACL BMW B58 / Toyota Supra B58 Standard Size Performance Rod Bearing Set
Brand: ACL
Price: 183.63 USD
Availability: InStock

ACL BMW B58 / Toyota Supra B58 Standard Size Performance Rod Bearing Set

$183.63

In Stock

Fits 2016-2018 BMW 340i. ACL standard size rod bearings for B58/S58 engines, offering reliable performance for your build.

Key Features

Fits 2016-2018 BMW 340i, 2018-2019 BMW X3, and 2020 Toyota GR Supra.
Standard size rod bearings designed for B58B30 and S58B30 3.0L inline-6 engines.
Features a multi-layer material construction for strength and durability.
Helps maintain proper oil clearance to reduce friction and wear.
Direct fit replacement for performance engine builds or repairs.

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Fits these vehicles

BMW 340i 2016-2018
BMW X3 2018-2019
Toyota GR Supra 2020

Product Details

ACL has been making engine bearings for decades, and this standard size rod bearing set for your BMW 340i is one of their staples. These bearings are crucial for keeping your engine running smoothly by reducing friction between the crankshaft and connecting rods. If you're working on a performance build or replacing worn components in your 3.0L B58 or S58 engine, these bearings are a solid choice.

This set is built with a multi-layer material that's known for its strength and ability to handle the demands of a performance engine. The standard size means they're designed to fit perfectly with your factory crankshaft journals, making installation straightforward if you're already rebuilding the bottom end. ACL is a well-known name in performance engine parts, and these bearings reflect that reputation for reliability.

When you're putting an engine back together, especially one that sees spirited driving, using well-built internal components like these ACL rod bearings is important. They are designed to maintain proper oil clearance, which is key to preventing premature wear and ensuring the longevity of your engine.