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Pump Timing Wrench
Put the pry bar down and use our custom made injection pump wrench to make adjusting your DB or DS injection pump a breeze! Simply slide the tool into the existing slots and use a 3/8" breaker bar or ratchet to get the leverage required to rotate the pump. The positive engagement gives you precise control over pump placement so you won't have to fight to make small adjustments during the TDCO learn process on a DS4 or when adjusting base timing advance on a DB2. Laser engraved + and - symbols ensure you'll never forget which way to rotate the pump for TDCO adjustments
This pump wrench works on all GM 6.2 and 6.5 diesels with DB2 or DS4 injection pumps. Direct replacement for J-29872-A, J-29872.
100% stainless steel, Made in the USA.