InMotion WU1018 Engine Water Pump

Name: InMotion WU1018 Engine Water Pump
Brand: InMotion
SKU: HKKS-WU1018
Price: 54.15 USD
Availability: InStock

⚙️ 217 vehicles fit this part

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✅OE Direct Replacement — Bolt-on fit, no modifications needed

🚗Fitment: Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac, 98, Bonneville, Camaro, Caprice, Catalina, Century, Cutlass, Cutlass Calais, Cutlass Cruiser, Cutlass Salon, Cutlass Supreme, Delta 88, DeVille, El Camino, Eldorado, Firebird, Fleetwood, Grand Am, Grand LeMans, Grand Prix, Impala, Laurentian, LeMans, LeSabre, Malibu, Monte Carlo, Monza, Omega, Parisienne, Phoenix, Regal, Riviera, Seville, Skyhawk, Skylark, Starfire, Sunbird, and Toronado

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Engine Cooling Replacement for Classic GM V8 Applications

The InMotion WU1018 engine water pump is built for classic rear-wheel-drive GM applications that need steady coolant circulation and dependable sealing. It supports proper engine temperature control for a wide range of Buick, Chevrolet, Oldsmobile, and Pontiac models, including Buick Regal, Chevrolet Monte Carlo, and Pontiac Grand Prix applications.

Precision-machined impeller for consistent coolant flow
High-quality bearings and seals for smooth operation
Corrosion-resistant housing for long service life
OEM-style fit for straightforward replacement
Direct replacement for many 1973-1989 GM passenger car applications

Fitment Coverage

Fits 1989 Pontiac Firebird, N/A
Fits 1977-1981 Pontiac Firebird, N/A
Fits 1978-1987 Buick Regal, N/A
Fits 1975 Buick Regal, N/A
Fits 1978-1987 Chevrolet Monte Carlo, N/A
Fits 1985-1987 Oldsmobile Cutlass Salon, N/A
Fits 1980 Oldsmobile Cutlass Salon, N/A
Fits 1978 Oldsmobile Cutlass Salon, N/A
Fits 1980-1987 Oldsmobile Cutlass Supreme, N/A
Fits 1977-1978 Oldsmobile Cutlass Supreme, N/A
Fits 1978-1987 Pontiac Grand Prix, N/A
Fits 1981-1986 Pontiac Bonneville, N/A
Fits 1979-1985 Buick LeSabre, N/A
Fits 1979-1985 Buick Riviera, N/A
Fits 1980-1985 Chevrolet Caprice, N/A
Fits 1980-1985 Chevrolet Impala, N/A
Fits 1980-1985 Oldsmobile Delta 88, N/A
Fits 1977-1978 Oldsmobile Delta 88, N/A
Fits 1981-1985 Pontiac Parisienne, N/A
Fits 1978-1984 Chevrolet El Camino, N/A
Fits 1980-1984 Oldsmobile Cutlass Calais, N/A
Fits 1978 Oldsmobile Cutlass Calais, N/A
Fits 1981-1984 Oldsmobile Toronado, N/A
Fits 1978-1983 Chevrolet Malibu, N/A
Fits 1981-1983 Oldsmobile 98, N/A
Fits 1980-1983 Oldsmobile Cutlass Cruiser, N/A
Fits 1977-1983 Pontiac Grand LeMans, N/A
Fits 1980-1982 Cadillac DeVille, N/A
Fits 1981-1982 Cadillac Eldorado, N/A
Fits 1980-1982 Cadillac Fleetwood, N/A
Fits 1981-1982 Cadillac Seville, N/A
Fits 1977-1981 Buick Century, N/A
Fits 1980-1981 Chevrolet Camaro, N/A
Fits 1980-1981 Oldsmobile Cutlass, N/A
Fits 1977-1978 Oldsmobile Cutlass, N/A
Fits 1981 Pontiac Catalina, N/A
Fits 1977 Pontiac Catalina, N/A
Fits 1981 Pontiac Laurentian, N/A
Fits 1977-1981 Pontiac LeMans, N/A
Fits 1975-1980 Buick Skyhawk, N/A
Fits 1978-1980 Chevrolet Monza, N/A
Fits 1980 Oldsmobile Starfire, N/A
Fits 1975-1978 Oldsmobile Starfire, N/A
Fits 1978-1980 Pontiac Bonneville, N/A, Vin (X)
Fits 1978-1980 Pontiac Catalina, N/A, Vin (X)
Fits 1976-1980 Pontiac Sunbird, N/A
Fits 1975-1979 Buick Skylark, N/A
Fits 1979 Pontiac Grand Am, N/A
Fits 1977-1979 Pontiac Phoenix, N/A
Fits 1978 Buick LeSabre, N/A, Vin (X)
Fits 1978 Buick Riviera, N/A, Vin (X)
Fits 1975-1978 Oldsmobile Omega, N/A
Fits 1975-1977 Buick LeSabre, N/A, Vin (J)
Fits 1973 Buick LeSabre, N/A, Vin (J)
Fits 1977 Buick Regal, N/A, Vin (H)
Fits 1977 Buick Riviera, N/A, Vin (J)
Fits 1973-1976 Buick Century, N/A, with Aluminum Housing
Fits 1976 Buick Regal, N/A, with Aluminum Housing
Fits 1973-1974 Buick Regal, N/A, with Aluminum Housing
Fits 1974 Buick LeSabre, N/A, with Aluminum Housing

What This Water Pump Helps Address

Coolant circulation problems that can lead to overheating
Leakage from worn seals or housing corrosion
Noisy or rough pump operation from bearing wear
Reduced cooling performance in high-mileage classic engines
Replacement needs for Buick, Chevrolet, Oldsmobile, and Pontiac cooling systems

Installation Notes

Verify engine configuration, VIN-specific fitment, and housing style before installation, especially on Buick applications with Vin (J), Vin (H), Vin (X), or aluminum housing notes. Confirm gasket surfaces are clean, inspect the cooling system for contamination, and replace coolant after installation. The WU1018 is engineered for OEM-style fitment, which helps simplify replacement on vehicles such as the Chevrolet Monte Carlo, Pontiac Grand Prix, and Buick Regal.

Quality Assurance

InMotion builds this water pump with a machined impeller, durable bearings and seals, and a corrosion-resistant housing to support reliable cooling performance in demanding service conditions. Part number WU1018 is specified for a broad range of classic GM passenger cars and is intended as a direct-fit replacement for the listed applications.

This part fits 217 vehicles. Search below:

Year	Make	Model	Liters	Cylinders	Position	Notes
1989	Pontiac	Firebird	3.8L	V6	N/A
1987	Buick	Regal	3.8L	V6	N/A
1987	Chevrolet	Monte Carlo	3.8L	V6	N/A
1987	Oldsmobile	Cutlass Salon	3.8L	V6	N/A
1987	Oldsmobile	Cutlass Supreme	3.8L	V6	N/A
1987	Pontiac	Grand Prix	3.8L	V6	N/A
1986	Buick	Regal	3.8L	V6	N/A
1986	Chevrolet	Monte Carlo	3.8L	V6	N/A
1986	Oldsmobile	Cutlass Salon	3.8L	V6	N/A
1986	Oldsmobile	Cutlass Supreme	3.8L	V6	N/A
1986	Pontiac	Bonneville	3.8L	V6	N/A
1986	Pontiac	Grand Prix	3.8L	V6	N/A
1985	Buick	LeSabre	3.8L	V6	N/A
1985	Buick	Regal	3.8L	V6	N/A
1985	Buick	Riviera	3.8L	V6	N/A
1985	Chevrolet	Caprice	3.8L	V6	N/A
1985	Chevrolet	Impala	3.8L	V6	N/A
1985	Chevrolet	Monte Carlo	3.8L	V6	N/A
1985	Oldsmobile	Cutlass Salon	3.8L	V6	N/A
1985	Oldsmobile	Cutlass Supreme	3.8L	V6	N/A
1985	Oldsmobile	Delta 88	3.8L	V6	N/A
1985	Pontiac	Bonneville	3.8L	V6	N/A
1985	Pontiac	Grand Prix	3.8L	V6	N/A
1985	Pontiac	Parisienne	3.8L	V6	N/A
1984	Buick	LeSabre	4.1L	V6	N/A
1984	Buick	Regal	3.8L	V6	N/A
1984	Buick	Riviera	3.8L	V6	N/A
1984	Chevrolet	Caprice	3.8L	V6	N/A
1984	Chevrolet	El Camino	3.8L	V6	N/A
1984	Chevrolet	Impala	3.8L	V6	N/A
1984	Chevrolet	Monte Carlo	3.8L	V6	N/A
1984	Oldsmobile	Cutlass Calais	3.8L	V6	N/A
1984	Oldsmobile	Cutlass Supreme	3.8L	V6	N/A
1984	Oldsmobile	Delta 88	3.8L	V6	N/A
1984	Oldsmobile	Toronado	4.1L	V6	N/A
1984	Pontiac	Bonneville	3.8L	V6	N/A
1984	Pontiac	Grand Prix	3.8L	V6	N/A
1984	Pontiac	Parisienne	3.8L	V6	N/A
1983	Buick	LeSabre	4.1L	V6	N/A
1983	Buick	Regal	4.1L	V6	N/A
1983	Buick	Riviera	3.8L	V6	N/A
1983	Chevrolet	Caprice	3.8L	V6	N/A
1983	Chevrolet	El Camino	3.8L	V6	N/A
1983	Chevrolet	Impala	3.8L	V6	N/A
1983	Chevrolet	Malibu	3.8L	V6	N/A
1983	Chevrolet	Monte Carlo	3.8L	V6	N/A
1983	Oldsmobile	98	4.1L	V6	N/A
1983	Oldsmobile	Cutlass Calais	3.8L	V6	N/A
1983	Oldsmobile	Cutlass Cruiser	3.8L	V6	N/A
1983	Oldsmobile	Cutlass Supreme	3.8L	V6	N/A
1983	Oldsmobile	Delta 88	3.8L	V6	N/A
1983	Oldsmobile	Toronado	4.1L	V6	N/A
1983	Pontiac	Bonneville	3.8L	V6	N/A
1983	Pontiac	Grand LeMans	3.8L	V6	N/A
1983	Pontiac	Grand Prix	3.8L	V6	N/A
1983	Pontiac	Parisienne	3.8L	V6	N/A
1982	Buick	LeSabre	4.1L	V6	N/A
1982	Buick	Regal	4.1L	V6	N/A
1982	Buick	Riviera	4.1L	V6	N/A
1982	Cadillac	DeVille	4.1L	V6	N/A
1982	Cadillac	Eldorado	4.1L	V6	N/A
1982	Cadillac	Fleetwood	4.1L	V6	N/A
1982	Cadillac	Seville	4.1L	V6	N/A
1982	Chevrolet	Caprice	3.8L	V6	N/A
1982	Chevrolet	El Camino	3.8L	V6	N/A
1982	Chevrolet	Impala	3.8L	V6	N/A
1982	Chevrolet	Malibu	3.8L	V6	N/A
1982	Chevrolet	Monte Carlo	3.8L	V6	N/A
1982	Oldsmobile	98	4.1L	V6	N/A
1982	Oldsmobile	Cutlass Calais	3.8L	V6	N/A
1982	Oldsmobile	Cutlass Cruiser	3.8L	V6	N/A
1982	Oldsmobile	Cutlass Supreme	3.8L	V6	N/A
1982	Oldsmobile	Delta 88	3.8L	V6	N/A
1982	Oldsmobile	Toronado	4.1L	V6	N/A
1982	Pontiac	Bonneville	3.8L	V6	N/A
1982	Pontiac	Grand LeMans	4.1L	V6	N/A
1982	Pontiac	Grand Prix	3.8L	V6	N/A
1982	Pontiac	Parisienne	3.8L	V6	N/A
1981	Buick	Century	3.8L	V6	N/A
1981	Buick	LeSabre	3.8L	V6	N/A
1981	Buick	Regal	3.8L	V6	N/A
1981	Buick	Riviera	4.1L	V6	N/A
1981	Cadillac	DeVille	4.1L	V6	N/A
1981	Cadillac	Eldorado	4.1L	V6	N/A
1981	Cadillac	Fleetwood	4.1L	V6	N/A
1981	Cadillac	Seville	4.1L	V6	N/A
1981	Chevrolet	Camaro	3.8L	V6	N/A
1981	Chevrolet	Caprice	3.8L	V6	N/A
1981	Chevrolet	El Camino	3.8L	V6	N/A
1981	Chevrolet	Impala	3.8L	V6	N/A
1981	Chevrolet	Malibu	3.8L	V6	N/A
1981	Chevrolet	Monte Carlo	3.8L	V6	N/A
1981	Oldsmobile	98	4.1L	V6	N/A
1981	Oldsmobile	Cutlass	3.8L	V6	N/A
1981	Oldsmobile	Cutlass Calais	3.8L	V6	N/A
1981	Oldsmobile	Cutlass Cruiser	3.8L	V6	N/A
1981	Oldsmobile	Cutlass Supreme	3.8L	V6	N/A
1981	Oldsmobile	Delta 88	3.8L	V6	N/A
1981	Oldsmobile	Toronado	4.1L	V6	N/A
1981	Pontiac	Bonneville	3.8L	V6	N/A
1981	Pontiac	Catalina	3.8L	V6	N/A
1981	Pontiac	Firebird	3.8L	V6	N/A
1981	Pontiac	Grand LeMans	3.8L	V6	N/A
1981	Pontiac	Grand Prix	3.8L	V6	N/A
1981	Pontiac	Laurentian	3.8L	V6	N/A
1981	Pontiac	LeMans	3.8L	V6	N/A
1981	Pontiac	Parisienne	3.8L	V6	N/A
1980	Buick	Century	3.8L	V6	N/A
1980	Buick	LeSabre	3.8L	V6	N/A
1980	Buick	Regal	3.8L	V6	N/A
1980	Buick	Riviera	3.8L	V6	N/A
1980	Buick	Skyhawk	3.8L	V6	N/A
1980	Cadillac	DeVille	4.1L	V6	N/A
1980	Cadillac	Fleetwood	4.1L	V6	N/A
1980	Chevrolet	Camaro	3.8L	V6	N/A
1980	Chevrolet	Caprice	3.8L	V6	N/A
1980	Chevrolet	El Camino	3.8L	V6	N/A
1980	Chevrolet	Impala	3.8L	V6	N/A
1980	Chevrolet	Malibu	3.8L	V6	N/A
1980	Chevrolet	Monte Carlo	3.8L	V6	N/A
1980	Chevrolet	Monza	3.8L	V6	N/A
1980	Oldsmobile	Cutlass	3.8L	V6	N/A
1980	Oldsmobile	Cutlass Calais	3.8L	V6	N/A
1980	Oldsmobile	Cutlass Cruiser	3.8L	V6	N/A
1980	Oldsmobile	Cutlass Salon	3.8L	V6	N/A
1980	Oldsmobile	Cutlass Supreme	3.8L	V6	N/A
1980	Oldsmobile	Delta 88	3.8L	V6	N/A
1980	Oldsmobile	Starfire	3.8L	V6	N/A
1980	Pontiac	Bonneville	5.7L	V8	N/A	Vin (X)
1980	Pontiac	Catalina	5.7L	V8	N/A	Vin (X)
1980	Pontiac	Firebird	3.8L	V6	N/A
1980	Pontiac	Grand LeMans	3.8L	V6	N/A
1980	Pontiac	Grand Prix	3.8L	V6	N/A
1980	Pontiac	LeMans	3.8L	V6	N/A
1980	Pontiac	Sunbird	3.8L	V6	N/A
1979	Buick	Century	3.8L	V6	N/A
1979	Buick	LeSabre	3.8L	V6	N/A
1979	Buick	Regal	3.8L	V6	N/A
1979	Buick	Riviera	3.8L	V6	N/A
1979	Buick	Skyhawk	3.8L	V6	N/A
1979	Buick	Skylark	3.8L	V6	N/A
1979	Chevrolet	El Camino	3.8L	V6	N/A
1979	Chevrolet	Malibu	3.8L	V6	N/A
1979	Chevrolet	Monte Carlo	3.8L	V6	N/A
1979	Chevrolet	Monza	3.2L	V6	N/A
1979	Pontiac	Bonneville	5.7L	V8	N/A	Vin (X)
1979	Pontiac	Catalina	5.7L	V8	N/A	Vin (X)
1979	Pontiac	Firebird	3.8L	V6	N/A
1979	Pontiac	Grand Am	3.8L	V6	N/A
1979	Pontiac	Grand LeMans	3.8L	V6	N/A
1979	Pontiac	Grand Prix	3.8L	V6	N/A
1979	Pontiac	LeMans	3.8L	V6	N/A
1979	Pontiac	Phoenix	3.8L	V6	N/A
1979	Pontiac	Sunbird	3.8L	V6	N/A
1978	Buick	Century	3.8L	V6	N/A
1978	Buick	LeSabre	5.7L	V8	N/A	Vin (X)
1978	Buick	Regal	3.8L	V6	N/A
1978	Buick	Riviera	5.7L	V8	N/A	Vin (X)
1978	Buick	Skyhawk	3.8L	V6	N/A
1978	Buick	Skylark	3.8L	V6	N/A
1978	Chevrolet	El Camino	3.8L	V6	N/A
1978	Chevrolet	Malibu	3.8L	V6	N/A
1978	Chevrolet	Monte Carlo	3.8L	V6	N/A
1978	Chevrolet	Monza	3.8L	V6	N/A
1978	Oldsmobile	Cutlass	3.8L	V6	N/A
1978	Oldsmobile	Cutlass Calais	3.8L	V6	N/A
1978	Oldsmobile	Cutlass Salon	3.8L	V6	N/A
1978	Oldsmobile	Cutlass Supreme	3.8L	V6	N/A
1978	Oldsmobile	Delta 88	3.8L	V6	N/A
1978	Oldsmobile	Omega	3.8L	V6	N/A
1978	Oldsmobile	Starfire	3.8L	V6	N/A
1978	Pontiac	Bonneville	5.7L	V8	N/A	Vin (X)
1978	Pontiac	Catalina	5.7L	V8	N/A	Vin (X)
1978	Pontiac	Firebird	3.8L	V6	N/A
1978	Pontiac	Grand LeMans	3.8L	V6	N/A
1978	Pontiac	Grand Prix	3.8L	V6	N/A
1978	Pontiac	LeMans	3.8L	V6	N/A
1978	Pontiac	Phoenix	3.8L	V6	N/A
1978	Pontiac	Sunbird	3.8L	V6	N/A
1977	Buick	Century	3.8L	V6	N/A
1977	Buick	LeSabre	5.7L	V8	N/A	Vin (J)
1977	Buick	Regal	5.7L	V8	N/A	Vin (H)
1977	Buick	Riviera	5.7L	V8	N/A	Vin (J)
1977	Buick	Skyhawk	3.8L	V6	N/A
1977	Buick	Skylark	3.8L	V6	N/A
1977	Oldsmobile	Cutlass	3.8L	V6	N/A
1977	Oldsmobile	Cutlass Supreme	3.8L	V6	N/A
1977	Oldsmobile	Delta 88	3.8L	V6	N/A
1977	Oldsmobile	Omega	3.8L	V6	N/A
1977	Oldsmobile	Starfire	3.8L	V6	N/A
1977	Pontiac	Catalina	3.8L	V6	N/A
1977	Pontiac	Firebird	3.8L	V6	N/A
1977	Pontiac	Grand LeMans	3.8L	V6	N/A
1977	Pontiac	LeMans	3.8L	V6	N/A
1977	Pontiac	Phoenix	3.8L	V6	N/A
1977	Pontiac	Sunbird	3.8L	V6	N/A
1976	Buick	Century	5.7L	V8	N/A	with Aluminum Housing
1976	Buick	LeSabre	5.7L	V8	N/A	Vin (J)
1976	Buick	Regal	5.7L	V8	N/A	with Aluminum Housing
1976	Buick	Skyhawk	3.8L	V6	N/A
1976	Buick	Skylark	5.7L	V8	N/A
1976	Oldsmobile	Omega	5.7L	V8	N/A
1976	Oldsmobile	Starfire	3.8L	V6	N/A
1976	Pontiac	Sunbird	3.8L	V6	N/A
1975	Buick	Century	5.7L	V8	N/A	with Aluminum Housing
1975	Buick	LeSabre	5.7L	V8	N/A	Vin (J)
1975	Buick	Regal	3.8L	V6	N/A
1975	Buick	Skyhawk	3.8L	V6	N/A
1975	Buick	Skylark	3.8L	V6	N/A
1975	Oldsmobile	Omega	5.7L	V8	N/A
1975	Oldsmobile	Starfire	3.8L	V6	N/A
1974	Buick	Century	5.7L	V8	N/A	with Aluminum Housing
1974	Buick	LeSabre	5.7L	V8	N/A	with Aluminum Housing
1974	Buick	Regal	5.7L	V8	N/A	with Aluminum Housing
1973	Buick	Century	5.7L	V8	N/A	with Aluminum Housing
1973	Buick	LeSabre	5.7L	V8	N/A	Vin (J)
1973	Buick	Regal	5.7L	V8	N/A	with Aluminum Housing

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.