Jeep CJ5 Water Pump Replacement at your home or office.

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Water Pump Replacement Service

How much does a Water Pump Replacement cost?

On average, the cost for a Jeep CJ5 Water Pump Replacement is $214 with $119 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1978 Jeep CJ5V8-5.0LService typeWater Pump ReplacementEstimate$387.77Shop/Dealer Price$460.34 - $648.80
1982 Jeep CJ5L4-2.5LService typeWater Pump ReplacementEstimate$449.95Shop/Dealer Price$548.71 - $822.44
1972 Jeep CJ5L6-4.2LService typeWater Pump ReplacementEstimate$398.88Shop/Dealer Price$475.26 - $666.09
1971 Jeep CJ5V8-5.0LService typeWater Pump ReplacementEstimate$361.77Shop/Dealer Price$434.33 - $622.79
1978 Jeep CJ5L6-4.2LService typeWater Pump ReplacementEstimate$398.88Shop/Dealer Price$475.29 - $666.13
1974 Jeep CJ5L6-4.2LService typeWater Pump ReplacementEstimate$398.88Shop/Dealer Price$475.26 - $666.09
1979 Jeep CJ5L6-4.2LService typeWater Pump ReplacementEstimate$407.38Shop/Dealer Price$483.53 - $674.18
1980 Jeep CJ5L4-2.5LService typeWater Pump ReplacementEstimate$454.95Shop/Dealer Price$553.94 - $827.86
Show example Jeep CJ5 Water Pump Replacement prices

What is a water pump and how does it work?

The water pump is a belt or chain-driven engine accessory bolted to the engine above the crankshaft pulley. The pump housing has an impeller that circulates engine coolant through the cooling system passageways in the engine block and cylinder head, on to the radiator, where the coolant temperature is reduced. . The lower temperature coolant then flows back to the water inlet on the engine and the water pump continues the cycle.

When to consider replacing the water pump:

  • Coolant leaks or overheating. The water pump impeller shaft is supported by a bearing. Eventually, the bearing or seal can wear and leak or damage the impeller. Many water pumps have weep holes near the pump bearing. If you see significant leakage from that weep hole, it is time to replace the pump.
  • Bearing roughness or noise. If the water pump shaft does not turn smoothly or the pump is noisy, the bearing is excessively worn. Pump replacement will be necessary.
  • Timing belt replacement. In engines where the water pump is driven by the timing belt, it is a good idea to replace the water pump at the same time the timing belt is replaced. The extensive work explains why it is always recommended to replace the water pump whenever the mechanic already has these components removed for regularly scheduled timing belt replacement.

How do mechanics replace the water pump?

  • The water pump is usually bolted to the front of the engine. The replacement procedure will vary depending on whether the pump is driven by the timing belt, the serpentine belt, or chain.
  • On a cold engine, the engine coolant is drained to a level below the water pump.
  • Components that require removing to access the water pump are removed, including the belt or chain that directly drive the pump.
  • The bolts holding the pump to the engine are removed and the pump is pulled out.
  • The gasket surface must be cleaned and the pump mounting surface inspected. A new gasket, rubber seal, or RTV sealant, as required, is installed and then the new pump. The bolts are torqued in sequence using a calibrated inch pound torque wrench.
  • For applications where the water pump is driven by the timing belt, the timing belt must be removed. Typically, this requires removal of the crankshaft pulley, timing belt covers, and timing belt tensioner. Once the new pump is installed, new coolant is added back while bleeding the cooling system of any air. The engine is then run and brought to normal operating temperature to check for leaks and ensure normal operating temperature.

Is it safe to drive with a water pump problem?

No. Should the water pump only leak a little bit, you can drive the car. However, a small leak could suddenly enlarge or the pump bearing might unexpectedly seize. Either circumstance would likely cause engine overheating. If a defective water pump causes the overheating, it is not safe to drive because of the damage to the engine.

When replacing the water pump keep in mind:

  • It is best to install a new cooling system thermostat when you install a new water pump, especially if the thermostat is old or original.
  • Completely flushing the cooling system is a good idea when you replace the water pump. Flushing can be done before or after pump replacement.
  • The rest of the cooling system should be inspected too — particularly rubber hoses, which have a limited lifetime.

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Excellent Rating

(21)

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Rigoberto

11 years of experience
739 reviews
Rigoberto
11 years of experience
Jeep CJ5 L6-3.8L - Not able to change gears - Northbrook, Illinois
Very helpful and great recommendation to help better my vehicle.

Ruben

23 years of experience
116 reviews
Ruben
23 years of experience
Jeep CJ5 L6-4.2L - Car is not starting - San Martin, California
Ruben is a very competent mechanic that knows his job well. He listens to the customer, he is on time and he does go out of his way to get the job done if applicable when the consumer asks. I would highly recommend him.

Robert

27 years of experience
333 reviews
Robert
27 years of experience
Jeep CJ5 V8-5.0L - Car is not starting - Washington, District of Columbia
Most excellent! Knowledgable. Took the time to explain and answer questions. Knows how to work on older cars!

Jonathan

11 years of experience
40 reviews
Jonathan
11 years of experience
Jeep CJ5 L4-2.2L - Pre-purchase Car Inspection - Chula Vista, California
Jonathan provided an in depth and detailed inspection on a 1961 Cj5 Jeep that I wanted to buy from Craigslist. He was cordial, friendly, and professional. Well worth the time and money.

Excellent Rating

(21)

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Number of Jeep CJ5 services completed
231+
services done by our mechanics
TOTAL NUMBER OF EXPERT Jeep MECHANICS
1300+
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