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Save money by replacing a seized EGT sensor bung

INNOVATION CASE STUDY    |    

芒果体育To run cleanly and efficiently, today’s heavy-duty diesel vehicles rely on a complex emissions system. A critical input to the diesel emissions system is the temperature of the exhaust gas, measured by the EGT sensor. Too cool and the system doesn’t reach optimum efficiency. Too hot and it runs the risk of self-destruction. Clearly, a damaged EGT sensor is not to be ignored.

EGT sensors typically sit in the hottest part of the exhaust system, either the diesel catalyst or the exhaust downpipe, where they’re exposed to high temperatures and corrosive gasses. The cycles of extreme heating followed by cooling, combined with exposure to the elements underneath the vehicle, can make it difficult to remove the sensor from its mount.

With a typical replacement interval between 50,000 and 80,000 miles, a stubborn EGT sensor is a problem many diesel owners will encounter during their ownership. The sensor usually seizes to its mounting bung and gets destroyed in the process of removal. It’s not always possible to remove the entire sensor from its mount without destroying the threaded bung.

With a typical replacement interval between 50,000 and 80,000 miles, a stubborn EGT sensor is a problem many diesel owners will encounter during their ownership

芒果体育One solution – certainly the most expensive – is to replace the entire diesel catalyst with a new part. This can run into the thousands of dollars for the part alone just to replace a $50 sensor! A better solution is to replace just the damaged sensor bung, but removing the old one often damages the catalyst housing, making for a questionable repair.

芒果体育Dorman has solved the problem of replacing a damaged bung with its line of OE FIX EGT bung repair kits, which include not only a new application-specific sensor mount, but also a bung mounting plate that can be welded in place to repair any damage to the catalyst housing during removal of the old bung.

芒果体育Both parts are made of stainless steel to reduce the opportunities for future corrosion. A qualified repair shop can make the repair in less than an hour once the catalyst is off the vehicle, saving thousands of dollars compared to replacing the entire catalyst assembly.

芒果体育To simplify ordering, all our EGT sensors now include a replacement bung and mounting plate, just in case you should run into this problem unexpectedly. We also offer the bung repair kits separately for convenience.

Exhaust Gas Temperature (EGT) Sensor Bung Repair Kit

904-557
Audi 2013-10, Volkswagen 2014-10 with 2.0L diesel engine

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Problem:

芒果体育When an EGT sensor bung rusts, the typical solution has been to replace the entire catalyst or exhaust pipe.

Our kit allows direct replacement of only the failed bung, with a weld-on plate if necessary for pipe repair.

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