what is a Pump Mounted Drive ??

well- I had to ask that question --if you knew -- are you smart or lucky :-)

See image - click to enlarge

DOR 904-104 -- just released --so we have to wait and see how long it takes to get written up and into system - typically it would be several months to go thru the steps

OEM # is 12562836. The salesmen have some MS Word attachments on different issues these GM Diesels have ...here is part ...

"Dorman® OE Solutions™ is proud to release its new Pump Mounted Driver (PMD) also sometimes refer to as a Fuel Solenoid Driver "FSD" to the aftermarket. This part is basically a computer module that controls the high pressure diesel fuel injector pump that fits 1994 to 2004 GM diesels with 6.5L engines. The Dorman PMD (part # 904-104) mounts directly to the high pressure diesel fuel pump, controlling its function. The OE PMD for this application has a nearly 100% failure rate, caused by underrated materials that are unable to handle the high underhood temperatures that the PMD is exposed to. Typical GM dealers are selling 60-80 units per year (including second and third time replacements).

Dorman’s PMD is the first replacement part available that FIXES the original cause for frequent OE failures, prolonging the life of the part. Dorman’s PMD is engineered to include higher rated electronics; vibration absorbent potting materials, solid mounted transistors, and a new fiberglass silicon heat transfer pad making the 904-104 PMD the superior choice for technicians seeking a more durable replacement for these failed OE units.

There is a remanufactured version of this same part available in the market. The remanufactured unit does not address any improvements to the part itself. In addition, the remanufactured unit is generally not readily available and usually supplied on a “return & repair” basis. Dorman’s NEW reengineered part is available August 1st, it addresses known problems with the OE unit and is priced competitively with a remanufactured unit."


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guess what --part still not added to Toronto DC warehouse system --while the USA warehouses have it -- we need an account with the USA warehouses .... what lack of fundamentals ......