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M&D's Legacy of Services Since 1943

Good Service Is Good Business!


You depend on your Diesel for your livelihood. We know you have to trust that it will perform when you need it. Every M&D branch is a fully authorized services facility for the major brands of diesel fuel injection.

Utilizing the latest test and calibration equipment from Bosch and Hartridge, combined with our decades of experience, you can rely on us to correctly test, diagnose, repair, and rebuild.



We utilize the latest equipment and procedures to provide our customers with a product that is built right, built with pride, and built to last.

In Houston, at our North Shepherd location, we also offer Drive-In-Service for diesel powered pickup and medium duty trucks.



We have a highly expierenced team of inside sales personnel to help you get the right part the first time you call.

Since 1943, we've been taking care of customers the old fashioned way: one-at-a-time.


Fuel Injection - Turbochargers - Engines Parts - Filtration