T4 Timing Chain Sliding Rail - Upper - 2.8 VR6 (AES)

This upper timing chain sliding rail guide is an essential component for maintaining precise timing and smooth operation of Volkswagen VR6 engines. Designed specifically for the upper timing chain tensioner, this rail provides critical guidance and support to the timing chain, helping to control chain movement and maintain accurate valve timing.

The sliding rail works in conjunction with the upper tensioner to reduce chain slack, minimise vibration, and prevent chain whip. Over time, the original rail can wear, crack, or become brittle due to heat and mileage. A worn guide can lead to timing chain noise, accelerated chain and sprocket wear, and in extreme cases, timing failure. Replacing this rail during timing system service work is essential for long-term engine reliability.

Manufactured to high-quality standards, this replacement sliding rail restores correct chain guidance and is ideal for preventative maintenance, timing chain repairs, or full engine rebuilds.

⚠ Service Recommendation:
During disassembly, it is strongly advised to inspect all timing chains, tensioners, and sprockets for wear or damage and replace components as required. On reassembly, ensure all moving parts are properly lubricated to promote smooth operation and longevity.

Function & Position

• Upper timing chain sliding rail

• Designed for the upper chain tensioner

• Maintains correct chain alignment and timing accuracy

• Reduces noise and premature chain wear

Vehicle & Engine Fitment

Engine Codes (Water-Cooled):

• AES – 2.8 VR6

• AAA – 2.8 VR6 (up to engine number 217 000)

• ABV – 2.9 VR6

Vehicle Applications:

• VW Transporter T4 – 2.8 VR6 (01/1996–08/1996)

• VW Golf Mk3 – VR6 AAA (1992–1996, up to engine no. 217 000)

• VW Corrado – VR6 ABV (1993–1995)

Key Features

• Precision-fit upper timing chain guide

• Designed for VR6 upper tensioner systems

• Maintains accurate engine timing

• Helps prevent chain noise and wear

• Ideal for timing chain service and rebuilds

Recommended Associated Parts

• Upper and lower timing chains

• Timing chain tensioners

• Lower timing chain sliding rails

• Camshaft and crankshaft sprockets