A ABIGAIL Fuel Pump Assembly for Chevy GMC C/K 1500–3500 (1988–1995) — Complete Module with Sending Unit

The A ABIGAIL E3621S fuel pump assembly is a direct-fit replacement engineered to restore reliable fuel delivery for 1988–1995 Chevy and GMC C/K 1500–3500 trucks.

Designed as a precision aftermarket alternative to OE units, this A ABIGAIL pump assembly matches the form, fit and function required for V8 7.4L, 5.7L, 5.0L and V6 4.3L engines used in late‑’80s and early‑’90s Chevy and GMC C/K trucks. It ships as a complete module including the sending unit and all mounting components, so you can replace the entire in-tank assembly without hunting for extra parts. Built to meet rigorous quality standards, the unit replaces common interchange numbers and installs with the existing fuel lines and electrical connectors in compatible models.

Will this replace my original pump and match factory specs?

Yes — the A ABIGAIL E3621S is manufactured to align with the dimensions and operating characteristics of the original equipment for the listed vehicles. It is meant to swap in with no modification when your truck matches the stated model years and engine sizes.

• Interchange references: AIRTEX:E3621S, CARTER:P8000S, DELPHI:HP10000, GM:25028611.
• Complete module includes pump, sending unit, and mounting hardware.
• Engine compatibility: V8 7.4L, 5.7L, 5.0L and V6 4.3L.

How straightforward is the installation for a backyard mechanic?

Installation is typically direct when the vehicle matches the compatible years and configurations — most work involves lowering the fuel tank, disconnecting the old module, and swapping in the new assembly. Basic hand tools and a safe workspace are usually sufficient; follow vehicle-specific service manual steps for fuel system precautions.

• Comes with mounting components to avoid extra parts purchasing.
• Plug-and-play electrical connectors and fuel-line ports for compatible trucks.
• Recommended: relieve fuel system pressure and follow safety protocols before service.

What durability and quality features does this pump include?

A ABIGAIL builds this fuel pump assembly to provide stable fuel flow and resist common in-tank stresses. Components are tested to meet performance thresholds similar to OE units, offering consistent delivery under typical driving loads.

• Precision-manufactured pump and sending unit for consistent fuel pressure.
• Materials chosen to withstand in-tank exposure and fuel additives.
• Engineered to improve fuel delivery stability and performance over worn originals.

What if the part doesn’t fit or you need help after purchase?

A ABIGAIL provides customer support for troubleshooting, replacement or refund if the assembly does not meet expectations or fit the compatible vehicle list. Contact customer service and have your vehicle details and part references ready to speed assistance.

• Support for replacement, troubleshooting and refund requests.
• Keep vehicle year, model, engine size, and original part number for faster resolution.
• Packaging includes the full module and installation hardware to reduce missing-part issues.

Who is this for: The A ABIGAIL E3621S fuel pump assembly is intended for owners, hobby mechanics, and professional technicians who need a reliable, direct-replacement fuel module for 1988–1995 Chevy and GMC C1500/C2500/C3500 and K1500/K2500/K3500 trucks equipped with V8 7.4L, 5.7L, 5.0L or V6 4.3L engines. It suits vehicles with a failing or noisy pump, inaccurate fuel sending readings, or those restoring older trucks where maintaining authentic fitment and dependable fuel delivery is important. If you prefer complete-in-tank replacements that include the sending unit and mounting hardware, this assembly simplifies the repair and reduces parts hunting.