autoexact Fuel Pump Assembly 1988–1995 Chevy/GMC Trucks w/ Sending Unit — Direct-Fit, Filtered

If your classic Chevy or GMC truck shows hard starts, hesitation, or erratic fuel gauge readings, a worn fuel pump assembly is often the cause. This AutoExact unit is engineered to match factory mounting points and electrical connectors for a straightforward swap with no cutting or major wiring changes, and it replaces common OE numbers like P80000S, E3621S, and HP10000.

How does this pump improve drivability?

The assembly restores steady fuel pressure and flow, which reduces symptoms such as stalling, rough idle, and slowed acceleration. Reliable pressure helps the engine run more consistently under load and during acceleration.

• Engineered to match OEM flow characteristics for stable fueling.
• Multilayer filtration minimizes debris entering the pump core and injectors.
• Optimized pickup design helps maintain supply at low fuel levels.

Will it fit my 1988–1995 Chevy or GMC truck?

This assembly is built for specific Silverado and C/K-series models from 1988–1995 when the vehicle’s original part numbers and connector types align. Always confirm your original part number and connector style before purchasing to ensure proper compatibility.

• Compatible with many 1988–1995 Chevy and GMC C1500/K1500, C2500/K2500, C3500/K3500 models.
• Replaces P80000S, E3621S, HP10000, SP01A1H and listed OEM numbers.
• Factory-style mounting points for direct replacement—no cutting needed.

What protection and filtration does the unit provide?

The pump includes a multi-layer filtration system that captures rust and large particulates before they reach the pump core. This reduces the risk of clogging and helps protect downstream fuel system components like injectors and valves.

• Primary strainer and internal filters trap contaminants early.
• Cleaner fuel flow lowers wear on the pump and injectors.
• Durable internals improve resistance to routine fuel-system stresses.

How reliable is it and what warranty coverage exists?

Each unit is tested for flow, sealing, electrical operation, and leak resistance before shipment to verify functionality. AutoExact backs this pump assembly with a 1-year limited warranty and customer support to address installation or performance questions.

• Quality-tested prior to shipping for flow and sealing integrity.
• 1-year limited warranty for peace of mind.
• Support available if fitment or installation questions arise.

Who is this for: This fuel pump assembly is designed for owners, restorers, and mechanics working on late‑’80s to mid‑’90s Chevrolet Silverado and GMC C/K trucks who need a reliable, direct-replacement pump and sending unit. It’s a practical choice for vehicles showing fuel delivery symptoms or inaccurate gauge readings, and for anyone seeking OE-style fitment without extensive wiring or modification.