026-198-243 VW Timing Belt Tensioner Stud Kit - ContiTech HW109

Timing Belt Tensioner Stud Kit – 026-198-243 (ContiTech HW109)

The 026-198-243 (ContiTech HW109) is a specialized hardware kit required when updating the timing belt tensioner on many 1.8L and 2.0L Volkswagen engines. This kit is specifically used to facilitate the transition from older plastic-style tensioner rollers to the more reliable, modern metal rollers. Because the updated metal tensioner has a different thickness and offset, the original mounting hardware is often insufficient, making this stud kit a mandatory component for a safe and proper installation.

A broken or loose tensioner stud is a catastrophic failure point that leads to timing belt slippage and severe internal engine damage. The ContiTech HW109 kit includes a high-strength stud, a spring washer, and a matching nut, ensuring that the tensioner remains securely torqued against the engine block throughout its service life. This kit is a "must-have" for any technician or DIY enthusiast performing a timing belt service on late 80s and 90s water-cooled VW models.

Detailed Vehicle Compatibility

VW Cabrio:

• 1995, 1996, 1997

VW Cabriolet:

• 1990, 1991, 1992, 1993

VW Fox:

• 1991, 1992, 1993

VW Golf:

• 1993, 1994, 1995, 1996, 1997, 1998

VW Jetta:

• 1993, 1994, 1995, 1996, 1997, 1998

VW Passat:

• 1995, 1996

Product Highlights & Features

• Essential Update Hardware: Specifically engineered to allow the installation of the improved all-metal tensioner roller on 2.0L and 1.8L engines.

• Complete Kit: Includes one high-tensile stud, one spring washer, and one nut for a full replacement of aging factory hardware.

• OE Quality: Manufactured by ContiTech (Continental), a leading original equipment supplier for VW/Audi timing components.

• Prevents Engine Failure: Ensures the timing belt tensioner is mounted with the correct geometry and clamping force to prevent belt slippage.

Technical Specifications

• Part Number: 026-198-243

• Manufacturer ID: HW109

• Stud Dimensions: M10 x 40mm

• Application: Timing Belt Tensioner Mounting

Installation & Maintenance Tips

• Double Nut Method: When installing the new stud into the engine block, use the "double nut" technique to seat the stud firmly without damaging the threads with pliers.

• Torque to Spec: Always use a torque wrench to tighten the tensioner nut. Overtightening can stretch the stud or strip the block, while undertightening can allow the tensioner to back off during engine operation.

• Thread Cleanliness: Ensure the threaded hole in the engine block is free of old locking compound, oil, or debris before installing the new stud to ensure accurate torque readings.

• Visual Inspection: During every timing belt inspection, check the stud for any signs of bending or stress fractures, especially if a previous belt failure has occurred.

026198243

HW109