VAG J-PLUG for B6 A4 1.8T (2002-2005)
Replaces part numbers 06B103033 and 06B103033A
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Dave @ 40T-Performance, Technical Specialist
Direct Line: Call or Text (248) 403-8512
Email: 40tperformance@gmail.com
Included parts:
- Billet Aluminum 6061 J-plug
- Includes Stainless Steel AR-70 M8 x1.25 16mm bolt,
- (2) O-rings 20x3
The J-plug on a 1.8T bolts to the engine block and sits under the intake manifold right behind the thermostat housing. It is a common leak point on the B6 A4 1.8Ts that have not been maintained and when it leaks is often mis-diagnosed for other types of coolant leaks like water pump and or the thermostat housing.
The purpose of the J-Plug is to plug a once-used port in the cooling system for an older application. Instead of retooling and recasting a new block for the B6, a quick and easy fix for VAG is to simply plug the port with this J-plug.
Installation Notes:
- After removing the old J-Plug, thoroughly clean the port using a wire brush or similar, ensuring there is no corrosion or rust, otherwise the new seal may be damaged.
- Always replace the oring if it looks worn. A spare o-ring is provided as a courtesy.