Performance Water Pump Kit for Audi Q8 (2019-2026) 3.0L
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Complete Aluminum Water Pump Service Kit for 2019-2026 Audi Q8 (4MN)
What it Does: The Complete Water Pump Service Kit replaces failure-prone factory cooling components on the 2019-2026 Audi Q8 to restore proper thermal regulation and prevent catastrophic engine overheating.
The Stock Audi Q8 Cooling System Weakness
The factory EA839 3.0T turbocharged V6 in the 4MN chassis relies on a complex vacuum-actuated cooling loop. Over extended heat cycles, OEM plastic water pump housings warp, and vacuum-actuated control collars suffer mechanical binding. When the internal seal degrades, pressurized coolant migrates past the internal diaphragm directly into the vacuum circuit, contaminating the switchover solenoids and resulting in uncommanded thermal spikes, coolant loss, and electrical fault codes.
The Engineering Solution
This comprehensive mechanical overhaul package eliminates common factory failure points by upgrading to a robust aluminum pump housing paired with an aluminum impeller. The all-metal assembly provides superior resistance to thermal fatigue and high coolant pressures compared to composite units. By packaging the belt-driven mechanical pump with a pre-matched thermostat, coolant crossover pipe, drive pulley, and fresh pneumatic control solenoids, this kit restores reliable heat rejection and seals the vacuum system against coolant cross-contamination.
What's Included
- 1 Engine Water Pump Assembly with Pulley
- 1 Thermostat
- 1 Water Pipe
- 1 Pulley
- 2 Solenoid Valves
- 1 Thermal Pneumatic Valve
- O-Ring and Fixing Bolt Hardware Set
Technical Specifications
| Fitment | 2019-2026 Audi Q8 |
|---|---|
| Engine / Chassis | EA839 3.0T / 4MN |
| Stock Output | 335 hp / 369 lb-ft |
| Replaces OEM Part # | 9A712101303, 9A712101304, 06M121013D, 06M121013G, 06M121013C, 06M121031D, 06M121031G, N91121903, 06M 121 013G, 9A712111511, PAB121115B, PAC121115, 06M121115, 06M121678H, 06M121678F, 06M121678G, 9A712167800, PAB121678A, 06M121115J, 06M121115G, 06M121115K, 06M121115H, 9A712111510, 06M115401K, 06M115401L, 06M115401F, 06M115401E, 9A711540100, 9A711540105, 9A711540110, PAB115401, PAC115401, 06M117015M, 9A711701530, 06M121083J, 06M121083H, 9A712108300, 9A71210830 |
Compatibility
- 2019-2026 Audi Q8 3.0L Mild Hybrid Gas Turbo (EA839)
- 2025-2026 Audi Q8 3.0L Plug-In Hybrid Gas Turbo (EA839)
Frequently Asked Questions & Fitment Warnings
Does this fit the 4MN Q8?
Yes, this is a direct fit for the 2019-2026 Audi Q8 equipped with the EA839 3.0L turbocharged engine. Does not fit 4.0L V8 twin-turbo models (SQ8/RS Q8) or earlier 3.0L supercharged engine platforms.
Is this an electric auxiliary water pump?
No, this unit is the primary mechanical belt-driven engine water pump assembly.
The Audi Precision Standard
Engineered to exact German tolerances, this coordinated service kit ensures factory flow characteristics, bubble-free cooling performance, and zero diagnostic trouble codes.
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