What material are these main bearings made from?

These main bearings are constructed from a bi-metal aluminum material. They also feature a lead-free composite, making them suitable for medium-load engines.

Are these bearings suitable for high-performance or racing engines?

These bearings are described as ideal for medium-load engines. For high-performance or racing applications, it's always best to consult with a specialist or review King Engine Bearings' specific product lines designed for those demands.

What is included in this set of main bearings?

This set includes four crankshaft main bearings. These are designed to replace the main bearings on the crankshaft for the specified Audi and Volkswagen engine applications.

Specifications

Brand: King Engine Bearings
Part #: MB4073SI
UPC: 611500471841

King Engine Bearings Audi ACZ / AAH / ACK / AEJ / ASN Crankshaft Main Bearings (Set of 4)

Name: King Engine Bearings Audi ACZ / AAH / ACK / AEJ / ASN Crankshaft Main Bearings (Set of 4)
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-audi-acz-aah-ack-aej-asn-crankshaft-ma-t14-84454
Price: 116.15 USD
Availability: BackOrder

$116.15

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1997-2008 Audi A4. King Engine Bearings crankshaft main bearings (set of 4). Lead-free composite ideal for medium-load engines.

Key Features

Fits 1997-2008 Audi A4, 1998-2009 Audi A4 Quattro, 1998-2008 Audi A6 Quattro, 1998-1999 and 2002-2008 Audi A6, and 1998-2000 Volkswagen Passat.
Set of 4 crankshaft main bearings.
Constructed from bi-metal aluminum material.
Features a lead-free composite.
Suitable for medium-load engines.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

About this part

Product Details

If you're rebuilding the engine in your 1997-2008 Audi A4, A4 Quattro, A6, A6 Quattro, or Volkswagen Passat, these crankshaft main bearings from King Engine Bearings are a solid option. King has been specializing in bearings since 1960, focusing on supplying well-built engine bearings for a wide range of applications.

These particular main bearings are made from a bi-metal aluminum material and feature a lead-free composite. This construction makes them ideal for medium-load engines, offering reliable performance for your rebuild. They come as a set of four, covering all the main journals on your crankshaft.