ATSLLC DS831-5521 Diesel Injection Pump For 94-02 GM Chevy 6.5L – No PMD, Core Charge Applies

This is a remanufactured diesel injection pump for 1994-2002 GM trucks with the 6.5L diesel.

Fits Chevy and GMC, also the H1 Hummer.

It's the electronic DS version, but it comes WITHOUT the PMD (you'll need to swap yours or buy separately).

Part numbers: DS831-5521, crosses to 5521S, 17800077, 12561307, 12561405, and others.

Important—there's a refundable core charge on this.

You send your old pump back, you get the charge refunded.

Read the seller's red text on core returns so you don't mess it up.

Brand is ATSLLC, warranty included.

If your 6.5 is starving for fuel or dying when hot, this might be the fix.

Get your diesel running right.