Injection Pumps DB2 Mechanical - GM 6.2L 6.5L

Our factory trained and certified technicians have been rebuilding DB2 injection pumps since they were introduced by Stanadyne, so we know them inside and out. Each pump is completely disassembled, thoroughly inspected and all worn parts replaced with genuine OEM Stanadyne components. The pump is then cleaned, reassembled and precisely calibrated to factory specifications. One weak point on Stanadyne DB2 pumps that is often ignored by most rebuilders is the advance bore. The aluminum housing tends to wear out quickly where the steel advance piston is located, causing poor pump timing, poor fuel mileage, excess smoke and low power. We address this problem by utilizing a steel sleeve in the advance bore. This gives us a more precise pump calibration and a superior injection pump that will last considerably longer.

All DB2 injection pumps include a 1-year warranty.

NOTE: The pumps we have listed for sale here will cover most GM 6.2L and 6.5L trucks with the Stanadyne DB2 pump. If your pump is not listed for sale on this page, then it may supersede to a different part number. Please refer to the Complete GM DB2 Pump List at the bottom of this page to help find the correct pump for your truck. You can also send your pump to us for rebuild. Please call or email for more info.