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Engine Water Pump
This photo shows the same type of part you'll receive. Since each used part has its own wear and scratches, yours may look slightly different. Check the product notes for details about the condition of this specific part.

2006 - 2008 BMW Z4 Electric Coolant Pump (OEM)

Only 1 left in stock
$149.95

ℹ️ Product Notes

This is a used coolant pump. It is an auxiliary (extra) water pump that runs on electricity.

This is an electric auxiliary pump for the heater system. It helps warm the cabin. Check for a 2-pin connector. This is not the main engine water pump.
Condition: Excellent (A)
Like new, minimal to no wear
112,211 miles
Odometer reading when part was removed
See Other BMW Z4 Engine Water Pumps
SKU #
4412722-12305-423

Why Buy Used OEM Parts?

✓ Quality-Verified: Every used OEM part we sell has been professionally inspected and tested to ensure it meets our quality standards. While it may show some cosmetic wear from previous use, it's fully functional and ready to install.

✓ Original Equipment: This is a genuine OEM (Original Equipment Manufacturer) part - the exact same part that came with your vehicle from the factory. It's designed specifically for your make and model, ensuring perfect fitment and performance.

✓ Works Like New: Despite some visual wear, this part will perform just as well as a brand new one. The internal components and functionality are intact, giving you the same reliability you'd expect from OEM quality.

✓ Significant Savings: Save 50-80% compared to buying new! Used OEM parts offer exceptional value - you get factory quality at a fraction of the cost. It's the smart choice for budget-conscious vehicle owners who won't compromise on quality.

✓ Risk-Free Purchase: We stand behind our used parts with a generous 6-month warranty, 30-day returns, and 100% money-back guarantee. If it doesn't work out for any reason, simply return it for a full refund. You have nothing to lose!

🛡️ 30-Day Returns + 6-Month Warranty - Buy with Confidence!

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Vehicle Fitment Guide

This part fits the following vehicles:

BMW
Z4 2006-2008 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
M Coupe Coupe 2006 - 2008 L6 3.2L RWD | Manual | Fits M models with 3.2L engine only
M Roadster Convertible 2006 - 2008 L6 3.2L RWD | Manual | Fits M models with 3.2L engine only

⚠️ Important: Please verify your vehicle's year, make, model, and specifications before ordering. If you're unsure about fitment, contact our customer service team for assistance.

Policies

Shipping & Handling

  • Standard shipping: 3-7 business days via UPS Ground
  • Parts are carefully packaged to prevent damage during transit

Returns (30 Days)

We accept returns within 30 days of delivery for this part.

  • Defective parts: We will replace the part or issue a refund at our discretion
  • Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
  • Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
  • Return shipping: We cover return shipping as part of our 100% money-back guarantee
  • Parts must be returned in original packaging and unmodified condition
  • Poorly packaged returns that arrive damaged will not be credited

6-Month Warranty

All used parts include a 6-month warranty from the date of purchase.

  • If your part fails within 6 months, we will send a replacement
  • Refunds are only issued if we cannot provide a suitable replacement
  • Warranty covers defects — not installation errors, misuse, or damage after installation

Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.

Damaged in Shipping?

If your part arrives damaged:

  • Stop immediately — do not install the part
  • Keep all original packaging and boxes
  • Take clear photos of the damage and packaging
  • Contact us within 48 hours of delivery

We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.

Order Cancellation

Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.

Symptoms & Diagnosis

Warning Signs the Electric Coolant Pump is Failing

  • Overheating engine. This is a major sign.
  • Coolant leaks near the pump. Look for drips or puddles.
  • Unusual noises from the engine area, like whining or buzzing.
  • The temperature gauge reading higher than normal.
  • Check engine light is on.

How to Test if This Part is the Problem

  1. Visual Inspection: Check for coolant leaks around the pump.
  2. Listen: Turn on the car and listen for unusual noises from the pump. A healthy pump should be quiet.
  3. Multimeter Test: If you know how to use a multimeter, you can check the voltage going to the pump. If there's power but the pump isn't working, it's likely the pump.
  4. Scan for Codes: Use an OBD-II scanner to check for trouble codes related to the cooling system.

Common Failure Causes for This Part

  • Age and wear. Like any part, it wears out over time.
  • Coolant contamination. Dirty coolant can damage the pump.
  • Overheating. Repeated overheating can shorten the pump's life.
  • Electrical issues. Problems with the wiring or voltage can cause failure.

Buyer's Checklist

What to Look for When Buying This Part

  • Check the connector. Make sure the electrical connector matches your car.
  • Inspect the housing. Look for cracks or damage.
  • Ask about warranty. A warranty protects you if the part fails.

Quality Indicators for the Available Options

FeatureUsed OEMRefurbished OEMNew Aftermarket
OriginOriginal BMW partOriginal BMW partThird-party manufacturer
TestingTested and inspectedTested and restoredBrand new
PriceGenerally the lowest priceMid-range priceCan be budget-friendly or mid-range depending on brand
ReliabilityProven reliability if properly testedRestored to like-new conditionReliability varies by brand

What's Typically Included with the Part

  • The electric coolant pump itself.
  • Sometimes a new gasket or O-ring.

Installation Overview

Difficulty Level and Estimated Time

  • Difficulty: Medium
  • Estimated Time: 1-3 hours

Special Tools Needed (if any)

  • Basic hand tools (sockets, wrenches, screwdrivers)
  • Pliers
  • Torque wrench
  • Catch pan for coolant

Critical Steps and Tips

  1. Disconnect the battery. This is important for safety.
  2. Drain the coolant. Use a catch pan to collect the coolant. Dispose of it properly.
  3. Remove the old pump. Disconnect the electrical connector and hoses.
  4. Install the new pump. Connect the hoses and electrical connector.
  5. Refill the coolant. Make sure to bleed the system to remove air bubbles.
  6. Reconnect the battery.

Whether DIY is Recommended or Professional Installation is Better

  • DIY is possible if you have experience working on cars. If you're not comfortable, professional installation is recommended.

Buying Options

Compare: Used OEM, Refurbished OEM, New Aftermarket

| Option | Pros the part itself.

  • Sometimes a new gasket or O-ring.

Buying Options

Compare: Used OEM, Refurbished OEM, New Aftermarket

| Option | Pros say, "The electric coolant pump is a critical component in your BMW's cooling system. When it fails, it can lead to serious engine damage. This page will help you diagnose the problem, choose the right replacement, and get your BMW back on the road."

Symptoms & Diagnosis

Warning Signs the Electric Coolant Pump is Failing

  • Overheating engine. This is a big problem if your car overheats.
  • Coolant leaks near the pump. Look for wet spots.
  • Strange noises. You might hear a whine or buzz.
  • Temperature gauge is high. The needle will be past the middle.
  • Check engine light. This light might come on.

How to Test if This Part is the Problem

  1. Look for leaks: Check around the pump for coolant.
  2. Listen closely: Can you hear the pump running when the car is on?
  3. Use a multimeter: This tool can check if the pump is getting power.
  4. Scan for error codes: A mechanic can use a scanner to see if there are any codes about the pump.

Common Failure Causes for This Part

  • It gets old. Parts wear out over time.
  • Dirty coolant. This can damage the pump.
  • Overheating. This puts extra stress on the pump.
  • Bad wiring. Problems with the wires can cause the pump to fail.

Buyer's Checklist

What to Look for When Buying This Part

  • Make sure the connector fits. The electrical plug needs to match your car.
  • Check for damage. Look for cracks or broken pieces.
  • Ask about a warranty. This protects you if the part breaks soon after you buy it.

Quality Indicators for the Available Options

FeatureUsed OEMRefurbished OEMNew Aftermarket
Part MakerMade by BMWMade by BMWMade by another company
ConditionUsed, but testedOld part fixed upBrand new
PriceUsually the cheapestIn the middleCan be cheap or in the middle
How Long It LastsShould last a while if it's goodShould be like newDepends on the brand

What's Typically Included with the Part

  • Just the pump itself.
  • Sometimes a rubber ring (gasket).

Installation Overview

Difficulty Level and Estimated Time

  • How hard: Medium
  • How long: 1 to 3 hours

Special Tools Needed (if any)

  • Regular tools like sockets and wrenches
  • Pliers
  • A tool to tighten things just right (torque wrench)
  • A pan to catch the coolant

Critical Steps and Tips

  1. Unplug the battery. This is the first thing to do for safety.
  2. Drain the coolant. Catch it in a pan.
  3. Take out the old pump. Unplug the wires and hoses.
  4. Put in the new pump. Plug in the wires and hoses.
  5. Add coolant. Make sure there are no air bubbles.
  6. Plug the battery back in.

Whether DIY is Recommended or Professional Installation is Better

  • If you know cars, you can do it yourself. If not, a mechanic is better.

Buying Options

Compare: Used OEM, Refurbished OEM, New Aftermarket

  • Used OEM: These are original BMW parts that have been taken from another car. They are tested to make sure they work. They are usually the cheapest option. You get a real BMW part for less money.
  • Refurbished OEM: These are also original BMW parts. But they have been fixed up by professionals. They replace any broken parts. This makes them almost like new.
  • New Aftermarket: These are brand new parts made by companies other than BMW. They are made to fit your BMW. They can be a good choice if you want a new part.

Typical Lifespan

How Long This Part Normally Lasts

  • 5 to 10 years.

Factors that Affect Longevity

  • How well you take care of your car.
  • The quality of the coolant.
  • How often the engine overheats.

Price Ranges

Budget vs Mid-Range vs Premium Options

  • Used OEM: $50 - $150
  • Refurbished OEM: $100 - $250
  • New Aftermarket: $80 - $300

Labor Cost Considerations if Applicable

  • Labor to install the pump can cost $200 - $500.

Total Job Cost Estimates

  • DIY: $50 - $300 (depending on part and supplies)
  • Professional Installation: $250 - $800 (depending on part and labor)

Vehicle-Specific Notes

Known Issues for This Vehicle's System Related to This Part

  • Some models have problems with air getting trapped in the cooling system. This can cause the pump to fail.
  • The electrical connector can sometimes become brittle and crack.

Any TSBs or Common Complaints

  • Check online for any Technical Service Bulletins (TSBs) related to the cooling system on your BMW.

Verification After Install

How to Confirm Proper Operation

  • Check the temperature gauge. It should stay in the normal range.
  • Look for leaks. Check around the pump and hoses for coolant.
  • Listen for the pump. It should be running quietly.

What to Look/Listen for to Verify It's Working Correctly

  • The engine should not overheat.
  • The heat should work properly.
  • There should be no warning lights on the dashboard.

FAQ

Q: How do I know if my electric coolant pump is bad?
A: The most common signs are overheating, coolant leaks, and strange noises from the engine.

Q: Can I drive my BMW if the coolant pump is bad?
A: No. Driving with a bad coolant pump can cause serious engine damage.

Q: How long does it take to replace an electric coolant pump?
A: It usually takes 1 to 3 hours.

Q: Is it hard to replace an electric coolant pump myself?
A: It's a medium-level job. If you're not comfortable working on cars, it's best to have a mechanic do it.

Q: What kind of coolant should I use in my BMW?
A: Use the coolant that is recommended in your owner's manual. Using the wrong coolant can damage the cooling system.

Part Specifications

OEM Part Numbers:

  • BMW: 64118369806, 8369806

Fits Years: 2006 2007 2008

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