GZKEFEIS Dog Bone Engine Mount Insert Kit for VW Golf GTI MK5 & Audi A3 — 85A Polyurethane, Bolt-On Upgrade

The GZKEFEIS Dog Bone Engine Mount Insert Kit is a polyurethane reinforcement that fits specific VW and Audi FWD models to reduce drivetrain movement and deliver crisper shifts without the harshness of solid mounts.

If your MK5/MK6 Volkswagen or MK2 Audi feels a little loose during acceleration, gear changes or cornering, this insert kit is a targeted, affordable way to tighten the connection between the transmission mount and subframe. Designed to work alongside the factory rubber bushings, the 85A durometer polyurethane insert reduces unwanted slop while maintaining comfort for daily driving. The kit arrives with the bolt, washers and a new motor-mount bolt so it’s a straightforward, bolt-on upgrade for compatible models.

How does this insert improve shifting and throttle response?

The insert stiffens the dog bone mount area to limit fore-aft and rotational movement of the engine/transmission assembly. Reduced movement translates to cleaner gear engagement and a more immediate transfer of throttle input to the drivetrain, so shifts feel firmer and acceleration feels more direct.

• Minimizes drivetrain play that causes delayed or vague shift feel
• Improves throttle feedback by reducing transmission movement
• Works with factory bushings to avoid a harsh NVH increase

What materials and durability features does the kit offer?

The insert is molded from 85A durometer polyurethane chosen for its balance of rigidity and elasticity. Polyurethane resists oil, water and road contaminants better than factory rubber, so it retains shape and performance over time while resisting common failure modes.

• 85A durometer polyurethane for long-lasting firmness
• Waterproof and dustproof properties reduce degradation
• Designed to withstand daily driving and occasional spirited use

Which vehicles and years will this dog bone insert fit?

This kit is engineered for front-wheel-drive Volkswagen and Audi platforms from the mid-2000s era. It fits the dog bone/transmission mount layout used on these models, but you should always check your vehicle’s year and drivetrain before ordering to ensure compatibility.

• VW Golf GTI / Rabbit MK5 2.0TSI (compatible FWD models)
• VW Jetta MK5 and MK6 2.0T TSI
• Audi A3 (8P), Q3, TT MK2; Passat B6, EOS, CC (FWD models 2005–2008)

How easy is installation and what hardware is included?

The kit is supplied as a complete package for a direct bolt-in upgrade—no specialty parts are required. Installation is a simple replacement of the factory dog bone insert area using standard hand tools; an experienced DIYer can typically complete the job in minutes, while a shop installation takes very little labor time.

• Includes polyurethane dog bone insert, large and small washers, and a new motor-mount bolt
• Direct bolt-on design compatible with factory mount geometry
• No extra components or modifications required for proper fit

Who is this for? Drivers who want sharper shift feel and reduced drivetrain lash without adopting a fully solid mount will appreciate this GZKEFEIS insert kit. It’s ideal for daily drivers who occasionally push their cars on back roads, enthusiasts tuning for improved responsiveness, and owners looking to reduce long-term wear on surrounding components by controlling excessive movement. Confirm your model and year before purchase to ensure a correct match for your VW or Audi FWD vehicle.