Keep coolant moving and engine temperatures in check with the GMB water pump 130-1250 (also written 1301250). This cast-iron engine water pump circulates coolant through the block and radiator, and it drops in as a direct-fit replacement across a huge run of GM applications — including the 1978-1983 Chevrolet Malibu with the 3.3L, 3.8L, 4.4L, 5.0L or 5.7L engine, the 1977-1985 Chevrolet Impala with the 3.8L, 4.3L, 4.4L, 5.0L or 5.7L engine and the 1977-1987 Chevrolet Camaro with the 3.8L, 4.4L, 5.0L or 5.7L engine — covering the V6-3.3L, V6-3.8L, V6-4.3L, V8-4.4L, V8-5.0L, V8-5.7L and V8-6.6L engines. With 322 applications listed, see the "Vehicles it fits" section for the full vehicle list.
- Tested build: 100% factory tested for leakage and dimensional precision, built to OE-level tolerances.
- Quiet, durable bearing: bearing noise- and durability-tested for reliable service.
- OE-matched flow: designed to match OE coolant flow rate and pressure.
- Construction: cast-iron housing with a metal impeller, standard impeller rotation and a flange-type, engine-belt-driven design.
Includes a gasket/seal (2) plus installation instructions. A pulley, bolts, bracket, sensor, thermostat and fan clutch are not included — consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.
Frequently Asked Questions
Does this GMB engine water pump come with a gasket?
Yes. It includes a gasket/seal (quantity 2) and installation instructions. A pulley, bolts, bracket, sensor, thermostat and fan clutch are not included.
Will this water pump fit my 1978-1983 Chevrolet Malibu with the 3.3L, 3.8L, 4.4L, 5.0L or 5.7L engine?
It is listed for 1978-1983 Chevrolet Malibu applications with the 3.3L, 3.8L, 4.4L, 5.0L or 5.7L engine, among many other GM vehicles. Confirm your year and engine against the "Vehicles it fits" section before ordering.
Which engines does the 130-1250 cover?
Listed applications span the V6-3.3L, V6-3.8L, V6-4.3L, V8-4.4L, V8-5.0L, V8-5.7L and V8-6.6L engines. Check the "Vehicles it fits" section for your specific vehicle.
Is a pulley included with this pump?
No. The pulley is not included; the pump uses a flange-type pulley mount and is engine-belt-driven. Transfer or source the correct pulley as directed by the service procedure.
What are signs the water pump may need replacing?
Coolant leaking from the pump, bearing noise or whine, and engine overheating can be signs. Diagnose the cause first, since these symptoms can have other sources.
