MUCO Replacement In-Tank Fuel Pump for GM Vehicles — 100 LPH 12V Complete Installation Kit

The MUCO High Performance Replacement Electric In-Tank Fuel Pump is a direct-fit aftermarket pump and installation kit engineered to match OEM specifications for select Chevrolet, Buick, Cadillac, Pontiac and Oldsmobile applications.

This in-tank electric fuel pump package includes the pump, strainer, wiring, clamp and related hardware so you get a complete replacement assembly ready for installation. Built to meet OE standards, the MUCO unit delivers a 100 LPH flow rate, operates at 12V and draws approximately 4.8A while producing about 3 bar of pressure. Before ordering, verify compatibility with your vehicle’s year and engine listed below to ensure proper fit and operation.

Which vehicles and engines does this MUCO pump fit?

This pump is designed for older GM platforms and some Range Rover models; it’s listed for specific year ranges and engine displacements. Always cross-check with your vehicle’s OEM part number or the listed fitment table to confirm fitment prior to purchase.

• 1988–1989 Buick Regal 2.8L
• 1989–1990 Land Rover Range Rover 3.9L
• 1985–1991 Oldsmobile 98 3.8L
• 1989–1992 Buick Century 3.3L; 1984–1988 Buick Century 3.8L
• 1986–1991 Buick Skylark and 1985 Buick Skylark 2.8L variants

How does the MUCO pump compare to the original equipment (OEM) parts?

The MUCO unit is an aftermarket replacement built to meet OE material and performance standards, providing comparable flow and pressure to factory units. It’s offered as a complete kit so you receive the pump plus the common installation components often replaced during fuel pump service.

• OEM replacement numbers covered: E3240, 25116161, P90014, P74006, P60460, K4020
• Also cross-references: FE0039, EP240, E3904, 69222, 25163468, 25116162, SP1120
• Performance: 100 LPH flow, 12V operation, ~4.8A current draw, ~3 BAR pressure

What comes in the installation kit and what should I prepare for installation?

The package includes the pump plus a replacement strainer, clamp and wiring harness pieces to facilitate a straightforward swap. Standard tools and a clean work area are recommended; depending on the vehicle, you may need to access the in-tank assembly via the trunk or by dropping the fuel tank.

• Included: pump, strainer, clamp, wiring components (see product images for detail)
• Recommended: basic hand tools, fuel-safe container, safety gloves and eyewear
• Tip: depressurize the fuel system and disconnect the battery before starting work

Will this pump deliver reliable operation and how is it built?

Constructed from materials chosen to meet OE durability expectations, the MUCO pump is new in original-style packaging and has not been tested or previously installed. It’s intended to restore factory-level flow and pressure when installed correctly in compatible vehicles.

• Material: manufactured to OE-quality standards for longevity and fit
• Condition: 100% brand new, factory-sealed packaging
• Support: customer service available for fitment or installation questions

Who is this for: The MUCO High Performance Replacement Electric In-Tank Fuel Pump and installation kit is aimed at owners and mechanics restoring or maintaining compatible older GM and select Range Rover vehicles who need a direct-fit, OE-spec aftermarket pump. If you’re replacing a failing in-tank pump, performing a fuel system refresh, or need the OEM cross-reference coverage listed above, this kit supplies the core components for a dependable replacement — just verify fitment against your vehicle and OEM part numbers before ordering.