Fully remanufactured to the latest #5521 spec. Please specify pump model number when ordering to ensure that we get you the correct unit. Requires core exchange. This is NOT part of the purchase price. These pumps come with a 1 year warranty.

"A serviceable core exchange unit is required, and must match unit purchased. This core must be returned within 30 days or a non refundable core charge of $200 will be applied. Prompt return of cores is critical in order to maintain stock levels for prompt service." -JK

"If you have a model #5068 (typically 94 HD only) we will need to know this OR you will need a chip upgrade listed below. - JK

This is a stock HD calibration chip that is used when updating from a 5068 pump to a mainstream (5288, 5459, 5521 etc) pump. For auto transmission only.

In the interest of preserving this product line into the future using the preferred OE blanks I need to get a core return from all orders. A $200 core fee will be applied at time of purchase and will be credited back ONLY IF core is returned within 15 days or other arrangements are made.

This is a stock HD calibration chip that is used when updating from a 5068 pump to a mainstream (5288, 5459, 5521 etc) pump. For manual transmission only.

In the interest of preserving this product line into the future using the preferred OE blanks I need to get a core return from all orders. A $200 core fee will be applied at time of purchase and will be credited back ONLY IF core is returned within 15 days or other arrangements are made.

It is my preference to use the OE eprom blanks as they have proven to be ultra reliable for decades now and cannot be plugged in reversed by accident. Unfortunately the supply of new blanks has been exhausted at GM and my supply is dwindling so we absolutely need the cores exchanged. if you are not able to send yours in advance to be programmed then please select this item and add to cart. -JK

Engine fuel shutoff solenoid for DS-4 electronic pump. Fits all DS4 pumps. Early units had internal (allen) hex attachment hardware, with is now replaced by a hex bolt.

"These seldom fail with the exception of leakage. This is not the delivery solenoid nor is it operated by the fuel solenoid (FSD/PMD) driver. The actual delivery solenoid is not a user serviceable part." - JK

Brand new OE harness with the gray connector for the later PMD. The keying is easily trimmed to make universal and fit any PMD.