Jeep Grand Cherokee (2017-2024) Engine Water Pump Replacement Facts
Here is what every owner should know about the engine water pump in their 2017-2024 Jeep Grand Cherokee.
- A coolant leak from the front of the engine is the most common sign of a failing water pump.
- Before replacing the pump for a leak, check the bypass O-ring, as a TSB noted this could be the actual cause.
- When replacing the pump, it is highly recommended to also replace the serpentine belt and thermostat.
- The job is moderately complex; using a cardboard template to track the many different bolt sizes is a crucial tip for DIY replacement.
Symptoms of a Failing Water Pump
A water pump failure in your Jeep Grand Cherokee will give you several warning signs. Ignoring them can lead to major engine problems. The most common failures involve the internal bearing or the shaft seal.
- Coolant Leaks: This is the most common symptom. You may notice a puddle of orange or pink coolant on the ground under the front of your engine. Look for dried coolant residue, which looks like a crusty pink or white trail, around the water pump body and pulley. The leak typically comes from a small hole on the pump called a "weep hole."
- Whining or Grinding Noises: A high-pitched whine or a grinding noise coming from the front of the engine that changes with engine speed is a classic sign of a failing water pump bearing. 🎬 Listen to what a failing Pentastar water pump sounds like.
- Engine Overheating: If the pump can no longer circulate coolant effectively, your engine's temperature gauge will climb into the red. You might also see steam coming from under the hood.
- Wobbly Pulley: If you can safely inspect the water pump pulley (with the engine off), any looseness or wobble is a clear sign the bearing has failed.
Check This First: TSB for Coolant Leaks
For 2014-2017 models, Jeep issued a Technical Service Bulletin (TSB) regarding coolant leaks. A pinched water pump bypass O-ring could cause a leak that looks exactly like a failed water pump. Before replacing the entire pump, it's worth inspecting this O-ring to avoid an unnecessary repair.
Choosing the Right Aftermarket Water Pump
When your Grand Cherokee's water pump fails, you have a choice between an OEM Mopar part and several aftermarket brands. While Mopar is the original part, high-quality aftermarket options can offer similar performance for a lower price.
It's important to note that most information and parts available are for the common 3.6L Pentastar V6 engine, which was used in both the WK2 and newer WL generations. Some 2016+ models may have a different pump design depending on whether they have Engine Stop-Start (ESS) technology.
Brand Quality Tiers
- OEM (Mopar): This is the part your Jeep came with from the factory. It's generally a safe and reliable choice, but it comes at a premium price. Even so, they are not immune to failure.
- Premium Aftermarket (Gates, Melling): Brands like Gates and Melling are well-known in the industry. Melling has a strong reputation for quality internal engine parts. Gates is a major manufacturer of belts and hoses, and their water pumps are a popular choice, though some users have reported mixed long-term reliability.
- Jeep Specialist (Crown Automotive): Crown specializes in parts for Jeep vehicles and claims to meet or exceed OEM specifications. They can be a good option, though forum discussions on the brand's overall quality are mixed.
- Value Aftermarket (GMB, US Motor Works): These brands offer a more budget-friendly price point. GMB is often cited as a lower-cost option, but forum reviews frequently mention premature failures and leaks, making them a riskier choice for a part with high labor costs to replace.
Pro Tip: Replace More Than Just the Pump
Since replacing the water pump requires removing the serpentine belt and draining the coolant, it's smart to replace other components at the same time. Consider installing a new serpentine belt, tensioner pulley, and thermostat. 🎬 See how to replace the water pump and thermostat together. This can save you from having to do a similar job again in the near future.
Typical Replacement Costs
The cost to replace a water pump varies by part quality and labor rates. The job is moderately difficult and can take a professional 2.5 to 4 hours.
| Item | Estimated Cost |
|---|---|
| New OEM (Mopar) Water Pump | $150 - $300 |
| New Aftermarket Water Pump | $91 - $751 |
| Shop Labor | $350 - $600 |
| Total Professional Replacement | $441 - $900+ |
Frequently Asked Questions
Can I drive my Grand Cherokee with a bad water pump?
No. Driving with a failed water pump is a serious risk. It will quickly lead to engine overheating, which can cause catastrophic damage like a blown head gasket or a seized engine. If you suspect a failure, it's best to have the vehicle towed.
Is replacing the water pump a DIY job?
For an experienced DIY mechanic, yes. The process involves draining the cooling system, removing the air intake and serpentine belt, and accessing the pump on the front of the engine. It is critical to keep track of the many different-sized bolts; making a cardboard template to hold them in order 🎬 Watch this quick DIY walkthrough for the 3.6L engine. is highly recommended. If you are not comfortable with this level of work, it is best left to a professional.
What kind of coolant should I use for my 2017-2024 Grand Cherokee?
Your Jeep requires a specific type of coolant to protect its aluminum components. Use a Mopar-approved OAT (Organic Additive Technology) coolant that meets the MS.90032 specification. Using the wrong type can lead to corrosion and cooling system damage.
How long should a water pump last?
A water pump is a wear item. While many are designed to last 100,000 miles or more, failures can happen sooner. Some owners of high-performance SRT models have reported failures in as little as 30,000-40,000 miles, while others see failures around 75,000 miles on standard models.
Helpful Videos
Technical Specifications
OEM Part Numbers: 68311108AA
The water pump for the 3.6L V6 engine is a mechanical, belt-driven unit with an aluminum housing. It is mounted to the front of the engine block and has multiple bolt sizes for attachment. The design may vary slightly for models with or without Engine Stop-Start (ESS).
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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