Gas Pump Assembly For Chevy GMC Trucks C1500 C2500 C3500 K1500 K2500 K3500 1988 Through 1995 With 4.3L 5.0L 5.7L 7.4L Engines Replacement For E3621S 66300 P8000S 402P3621S

In-Tank Fuel Pump Assembly for GM Trucks 1988-95 (Single)
✔️ Direct-fit OEM replacement for E3621S, 66300, P8000S; 1-year warranty

This gas pump assembly is an aftermarket in-tank fuel pump designed as a direct replacement for the factory unit in GM pickups and SUVs from 1988 to 1995. It supports engines 4.3L, 5.0L, 5.7L, and 7.4L, delivering reliable fuel pressure and steady delivery to keep engines running smoothly in everyday driving and heavier loads.

✅ Fits 1988-1995 Chevy C1500/C2500/C3500 and GMC C/K pickups
✅ Replaces common OEM part numbers including E3621S, 66300, P8000S, HP10022
✅ In-tank design delivers steady fuel pressure for consistent engine performance
✅ Direct-fit harness and connectors; no fuel line modifications needed
✅ 1-year warranty and factory-tested durability for peace of mind

💡 What is a fuel pump assembly and why replace it in pickup trucks? Replacing a worn pump helps prevent starting issues and fuel starvation.
- Maintains steady fuel pressure for reliable idle and acceleration
- Improves cold-start performance and overall engine response
- Handy maintenance for aging GM trucks to prevent stalling