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DS4 Pump For 1994 GM 6.5 L Turbo Diesel Heavy Duty & Light Duty, Trucks & Vans - 05068X

Part Number: 05068X
Manufacturer: Stanadyne
Core Charge: $300 - No Upfront Core Charge


Quick Overview

1 Year Unlimited Mile Warranty. *FREE Ground Shipping.


GM 6.5 L DS4 Electronic Fuel Injection Pump (Heavy Duty, Light Duty, Vans, & Trucks) (For 94 models produced before January 94)
For engines with 8th character of VIN reading F, Engine RPO code L65
Includes PMD installed on pump.
Injection Pump Installation Kit is required for proper installation (part# APE65110)

*No shipping fee applies to orders totaling $500 or more and shipping within the Contiguous United States


Manufacturer Stanadyne
Year 1994
Make Chevrolet, GMC
Model P30, Blazer, C1500, C2500, C2500 Suburban, C3500, K1500, K2500, K2500 Suburban, K3500, Yukon
Engine 6.5
Core Policy Selection General Core Policy
Core charge up front? No
Sub Model Base,Cheyenne,Silverado,Silverado Sport,WT,Sierra SL,Sierra SLE,Sierra SLT,Sierra Special,SLE,Sport
Cylinder 8
Blocktype V
Design N/A
Valves 2
Aspiration Turbocharged
Manufacturer General Motors
Version N/A
DS4 831-5068

General Core Policy

Some Items Have a Core Value!


What this means for our customers:

You are not charged the core charge if you send us the old core within 14 DAYS of purchase!


Definition of Core:

  • The core is the old unit, which was replaced by the new or rebuilt item.
  • Many replacement parts such as pumps, injectors, turbochargers and high pressure oil pumps have a core charge that is associated with the part. All cores must be like for like and include all parts and pieces that were received on your replacement product.
  • All cores must be returned in rebuildable condition to receive full credit.

Core Physical Condition:

  • No core credit will be issued for cores that have been in a fire, disassembled, or severely damaged or broken.
  • Partial core credit may be issued for cores that have been damaged, including those with a seized head and rotor, cracked housings, contamination (water, biodiesel, waste vegetable oil, etc), or missing parts or pieces


Core Return Procedure:

  1. Drain all fluids (oil, fuel, etc.) before the core is returned.
  2. Use all plastic plugs and caps received on the replacement item on the return core.
  3. Wrap in sturdy plastic bag to prevent leakage. Any wet packages may result in damaged or denied packages.
  4. Pack the core in the original box. Be sure to use any cardboard braces or internal cushioning provided.
  5. Include your purchase information together with the part, which includes either a printed email order confirmation, or a copy of the invoice included with the pump.
  6. Ship the core to:
    • The Diesel Store Core Returns
    • 1 Seidel Ct.
    • Bolingbrook, IL 60490
  7. If for any reason you have questions or concerns on the status of your core please e-mail the tracking number and invoice number to

After 14 Days:

  • If the core is returned after 14 days have passed from the date of purchase, the core is elegible for up to 75% credit.
  • If the core is returned after 30 days have passed from the date of purchase, the core is elegible for up to 50% credit.
  • If the core is returned after 60 days have passed from the date of purchase, the core is ineligible for credit even if returned.

Any Questions?

Please Call Us Toll Free @ 877.375.7867 or click here to email us.


Revision C • 1/29/2021

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