Vaico V20-2457 Engine Timing Chain Tensioner

BMW Engine Timing Chain Tensioner

The Vaico V20-2457 engine timing chain tensioner is an aftermarket valve train component built for select BMW V8 applications. It is specified with a 230 mm length, 40 mm width, and 22 mm height, with a lightweight 0.110 kg design for the listed fitments.

VAICO product line parts are developed as application-specific replacement components for European vehicles, with fitment coverage focused on BMW models that require a timing chain tensioner arm in the engine timing system.

Key Features

• Part number V20-2457 for direct reference during ordering and service lookup
• Engine timing chain tensioner for the valve train system
• Dimensions: 230 mm length, 40 mm width, 22 mm height
• Lightweight construction at 0.110 kg
• Aftermarket replacement for select BMW 760Li, 760i, 545i, 645Ci, 745i, 745Li, and X5 applications
• Cross-reference part numbers include 0 150 574 and 7 504 440 for the same application

Detailed Description

The Vaico V20-2457 timing chain tensioner is a BMW engine timing component used in the valve train to maintain proper chain tension and stable timing operation. This part number, V20-2457, is listed for multiple BMW V8 models, including 2003-2008 BMW 760Li, 2004-2006 BMW 760i, and select 2004-2005 BMW 545i, 645Ci, 745i, 745Li, and X5 applications. It is also listed with fitment notes identifying the tensioner arm configuration for the covered vehicles.

Use this BMW timing chain tensioner when servicing the engine timing system on listed vehicles and when replacing a worn or noisy tensioner arm assembly. The compact dimensions and low weight support straightforward parts matching against the original application data. If you are sourcing a Vaico V20-2457 for BMW 760Li timing chain service or a BMW X5 engine timing repair, verify the model year and notes against the fitment table before installation.

What It Helps Address

• Timing chain slack in the engine valve train
• Chain noise caused by a worn tensioner arm
• Irregular timing chain control during engine operation
• Service replacement for BMW timing system wear
• Fitment matching for listed BMW V8 engine applications

Installation Notes and Tips

Confirm the vehicle year, model, and fitment notes before installation. This part is listed for specific BMW applications with timing chain tensioner arm usage, including some vehicles with production cutoffs noted as to 01/2005. Compare the original part dimensions and reference numbers, including V20-2457, before beginning engine timing service. Because this is a valve train component, installation should be performed with proper timing procedures and inspection of related chain system parts.

Quality Assurance

VAICO supplies application-specific aftermarket parts for European vehicle service, and this timing chain tensioner is cataloged with OE-style cross-reference numbers for the same application. The listed interchange references include 0 150 574 and 7 504 440.