Engine Requirement
This pump is intended primarily for the earlier GM/Opel 1.4L turbocharged Ecotec engine, commonly identified by engine codes such as:
- LUJ
- LUV
It does not fit every Buick or Chevrolet with a 1.4L engine. Naturally aspirated engines, later-generation turbo engines, and high-output applications may require another pump.
Sonic Trim Compatibility
Depending on model year and original engine, possible Sonic applications include:
- LS
- LT
- LTZ
- Premier
- RS
Trim level alone does not determine fitment. Some Sonic trims were offered with more than one engine, so confirm that the vehicle has the compatible 1.4L turbocharged engine.
Buick Encore Trim Compatibility
Possible 2013–2020 Encore applications include:
- Base
- Convenience
- Leather
- Premium
- Preferred
- Preferred II
- Essence
- Sport Touring
Again, verify the engine and original part number. A badge is helpful, but the VIN is considerably less interested in guessing.
Chevrolet Trax Trim Compatibility
Potential Trax applications include:
- LS
- LT
- LTZ
- Premier
The Trax reached the United States for the 2015 model year, although earlier applications may appear in Canadian and other North American catalogs. Use the appropriate catalog for the vehicle’s original market.
Replacement Part Numbers
The Huntike AW6662 water pump is marketed as an interchange for:
- Airtex AW6662
- GMB 130-2140
- GM 25192709
- GM 55484625
- GM 55486342
- GM 55486344
- GM 55561623
- GM 55579016
- GM 55587345
- GM 55595610
- GM 55599494
- Opel 1334128
- 22519445
Some numbers may represent superseded components or regional applications. Matching one interchange number is helpful, but the final fitment decision should still be based on the VIN and original component.
The comparable GMB 130-2140 water pump is described as matching OE coolant flow and pressure while receiving leakage, dimensional, bearing-noise, and durability testing.
Product Features
- Designed for selected GM 1.4L turbocharged engines
- Direct-fit replacement construction
- Corrosion-resistant pump housing
- Wear- and impact-resistant components
- Replacement gasket included
- Designed to maintain OE-style coolant circulation
- Tested for correct operation before sale
- Compatible with several OE and aftermarket references
- Mechanical engine-driven pump
- Vehicle-specific mounting arrangement
How the AW6662 Water Pump Works
The engine drives the pump through its pulley. As the pulley turns, the pump shaft rotates the internal impeller. The impeller creates coolant flow through the engine, heater circuit, and radiator.
This circulation performs several essential jobs:
- Carries heat away from the cylinder head and engine block
- Supplies hot coolant to the heater core
- Moves coolant through the radiator
- Supports stable operating temperature
- Helps protect the turbocharged engine during sustained load
The thermostat regulates coolant flow based on temperature, while the radiator and cooling fan remove heat. The pump is crucial, but it is still only one member of the cooling-system committee.
Common GM 1.4L Water-Pump Problems
A water pump can fail because of:
- Bearing wear
- Shaft or pulley misalignment
- Mechanical-seal deterioration
- Contaminated or incorrect coolant
- Corrosion inside the pump
- Damaged impeller blades
- Excessive belt tension
- Debris within the cooling system
- Improper gasket installation
- Engine overheating
Unstable idle is not normally considered a direct cause of water-pump failure. However, severe vibration, incorrect belt operation, or damaged accessory-drive components may place additional stress on the pump bearing.
Symptoms of a Failing AW6662 Water Pump
Watch for:
- Coolant leaking near the pump
- Dried pink, orange, or white coolant residue
- Grinding or rumbling noises
- Pump-pulley wobble
- Engine overheating
- Poor coolant circulation
- Weak or intermittent cabin heat
- Sweet coolant odor
- Steam from the engine compartment
- Repeatedly low coolant level
A failing water pump is only one possible cause. A damaged outlet housing, hose, radiator, reservoir, thermostat, or pressure cap can create similar symptoms.
Follow our guide on how to find a coolant leak before replacing parts. If the engine is overheating, our comparison of a bad thermostat versus a bad water pump can help narrow down the fault.
Gasket Included
A replacement gasket is included to seal the water pump against the engine. Never reuse the old gasket, and do not install a damaged, folded, or contaminated replacement.
Before installation:
- Clean both sealing surfaces
- Remove corrosion and old gasket material carefully
- Keep oil and coolant away from the new gasket
- Confirm the gasket aligns with every coolant passage
- Use sealant only when specifically required
- Tighten the pump bolts to the factory specification
Applying half a tube of RTV does not create “extra protection.” It creates silicone noodles inside the cooling system.
Installation Considerations
Water-pump replacement on a GM 1.4L turbo engine may require removal or repositioning of several components. The exact procedure depends on the model and engine configuration.
General service steps include:
- Allow the engine to cool completely.
- Disconnect the battery when required.
- Drain the coolant into an approved container.
- Remove obstructing covers and intake components.
- Release the accessory belt as directed.
- Remove the pump pulley and water pump.
- Inspect the mounting and sealing surfaces.
- Compare the replacement with the original pump.
- Install the new gasket and water pump.
- Tighten the fasteners to the specified sequence and torque.
- Reinstall the pulley and belt.
- Refill with the correct coolant.
- Bleed trapped air according to GM service information.
- Pressure-test the system and inspect for leakage.
Always follow service information for the exact vehicle. Fastener torque, coolant-bleeding procedures, and component access can differ between the Cruze, Sonic, Trax, and Encore.
Inspect Related Components
While the cooling system is drained, inspect:
- Thermostat and thermostat housing
- Coolant outlet housing
- Expansion tank and cap
- Upper and lower radiator hoses
- Heater hoses
- Accessory belt
- Belt tensioner
- Idler pulleys
- Radiator
- Turbocharger coolant lines
- Cooling fan operation
If the existing coolant is contaminated or unknown, read our guide on how to flush a cooling system safely.
Use the Correct Coolant
Use coolant that meets the specification listed by GM for the exact model and production year. Do not choose coolant strictly by color because unrelated formulas can look nearly identical.
Our guide to IAT, OAT and HOAT coolant types explains why chemistry and manufacturer approval matter more than whether the liquid looks orange.
Used coolant is toxic. Collect it in a sealed container and keep it away from children and animals.
Is the Huntike AW6662 an Original GM Water Pump?
No. This is an aftermarket replacement manufactured by Huntike. References such as 25192709 and 55579016 identify compatibility targets; they do not mean the product is manufactured or endorsed by General Motors.
GM Genuine Parts and ACDelco water-pump components can be reviewed through the official GM Parts cooling-system catalog.
Frequently Asked Questions
What vehicles does the AW6662 water pump fit?
It commonly fits the 2013–2020 Buick Encore, 2011–2015 Chevrolet Cruze, 2016 Cruze Limited, 2012–2020 Chevrolet Sonic, and 2013–2020 Chevrolet Trax with the compatible 1.4L turbo engine.
Does AW6662 fit a 2017 Chevrolet Cruze?
Generally, it should not be assumed to fit the redesigned 2017 Cruze. That vehicle uses a later 1.4L turbocharged engine family. Confirm the VIN and OE pump number before purchasing.
Does this pump fit a 2016 Cruze?
It may fit a 2016 Cruze Limited with the earlier LUJ/LUV-style 1.4L turbo engine. It may not fit the redesigned 2016 Cruze. The “Limited” designation matters.
Does AW6662 fit a naturally aspirated 1.8L Sonic?
No. This water pump is intended for compatible 1.4L turbocharged applications. The 1.8L engine uses a different cooling-system configuration.
Is a gasket included?
Yes. This Huntike assembly is advertised as including the required water-pump gasket.
Is the thermostat included?
No thermostat is identified as part of this package. The listing describes a water pump with gasket. Purchase or inspect the thermostat separately when necessary.
Can this pump fix an overheating engine?
It can correct overheating caused by a failed water pump. It will not repair overheating caused by low coolant, a stuck thermostat, radiator restriction, fan failure, combustion leakage, or another cooling-system problem.
Can a water pump fail without leaking?
Yes. Bearing, shaft, or impeller damage can reduce circulation without producing an obvious external leak.
Final Verdict
The Huntike AW6662 offers a direct-fit aftermarket solution for compatible GM 1.4L turbo vehicles, including the Buick Encore, Chevrolet Cruze, Cruze Limited, Sonic, and Trax. Its included gasket, corrosion-resistant housing, and broad OE-number coverage make it a convenient option when replacing a leaking or noisy pump.
The largest fitment trap involves the Chevrolet Cruze. Treat 2011–2015 Cruze and 2016 Cruze Limited as the primary applications, then verify any later Cruze separately by VIN and engine code.
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