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.
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2009 - 2016 BMW Z4 Engine Water Pump (OEM)
Only 2 left in stock
$249.95
ℹ️ Product Notes
This is a used part. This is an external electric coolant pump. It works as an auxiliary pump and helps cool the intercooler.
This is an auxiliary pump for the intercooler system. It is NOT the main engine water pump. Please match your part number before buying.
Original Part #(s): 11517566335, 11517570793, 11517586928, 11517586929, 11517589636, 11517604529, 11517629916
✓ 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:
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⚠️ 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.
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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 of a Failing Engine Water Pump
Overheating engine
Temperature gauge rising into the red zone
Coolant leaks near the front of the engine
Whining or grinding noises coming from the engine
Steam coming from under the hood
Sweet smell of coolant
Testing the Engine Water Pump
Check for Coolant Leaks: Look for signs of coolant leaking around the water pump area.
Inspect the Water Pump Pulley: With the engine off, check the water pump pulley for play or wobble. Excessive movement indicates a worn bearing.
Feel the Radiator Hoses: With the engine running (carefully!), feel both the upper and lower radiator hoses. They should both be hot. If one is cold, the water pump may not be circulating coolant properly.
Listen for Noises: Listen for any unusual noises, such as whining, grinding, or rattling, coming from the water pump area.
Pressure Test the Cooling System: A cooling system pressure test can reveal leaks in the system, including the water pump seal.
Common Causes of Engine Water Pump Failure
Worn bearings due to age and mileage
Corrosion from contaminated coolant
Cavitation caused by air in the cooling system
Seal failure leading to coolant leaks
Impeller damage from debris in the coolant
Buyer's Checklist
What to Look for When Buying an Engine Water Pump
Material Quality: The water pump housing and impeller should be made of durable materials that can withstand high temperatures and pressures.
Bearing Quality: The bearings should be smooth and free of play.
Seal Integrity: The seal should be in good condition and free of cracks or damage.
Quality Indicators
Feature
Used OEM
Refurbished OEM
New Aftermarket
Origin
Genuine Factory Part
Genuine Factory Part
Third-Party Manufacturer
Condition
Tested and Inspected
Professionally Restored
Brand New
Price
Typically Lowest
Mid-Range
Varies, can be low to mid-range
Reliability
Good, if properly inspected
Good, with new components
Varies depending on brand and quality
What's Typically Included
Engine water pump
Gasket or O-ring (sometimes)
Mounting hardware (sometimes)
Installation Overview
Difficulty Level and Estimated Time
Difficulty: Intermediate
Estimated Time: 2-4 hours
Special Tools Needed
Socket set
Wrench set
Torque wrench
Pliers
Coolant drain pan
BMW specific fan clutch tool (sometimes required)
Critical Steps and Tips
Drain the Coolant: Properly drain the coolant from the system before removing the old water pump.
Remove Accessories: Remove any accessories that may be in the way, such as the fan shroud or belts.
Clean Mating Surfaces: Thoroughly clean the mating surfaces of the engine block and water pump to ensure a proper seal.
Install New Gasket/O-Ring: Use a new gasket or O-ring when installing the new water pump.
Torque to Spec: Torque the water pump bolts to the manufacturer's specifications.
Refill Coolant: Refill the cooling system with the correct type and amount of coolant.
Bleed the System: Bleed the cooling system to remove any air pockets.
DIY or Professional Installation?
DIY is possible for experienced mechanics.
Professional installation is recommended for those who are not comfortable working on their car's cooling system.
