OEM Specification Water Pump Thermostat Assembly for EA888 Gen3 Engines with 113 °C Thermostat Opening Temperature
| Thermostat Opening Temperature: | 113 °C | Water Pump Type: | For Tooth Belt-Accessory Drive |
| Engine Compatibility: | EA888 Gen3 — 1.8L / 2.0L TSI / TFSI | OEM Part Number: | 06K-121-111-J / 06K121111J / 06K 121 111 J |
| Material: | High-strength Aluminum Alloy & Precision Bearings | Cooling Type: | Engine Coolant Circulation |
| Includes: | Union Connector And O-rings | Installation: | Direct OEM Replacement |
| High Light: | OEM Specification Water Pump,EA888 Gen3 Engine Compatibility Thermostat Assembly,113 °C Thermostat Opening Temperature Coolant Regulator |
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The Engine Water Pump / Thermostat Assembly with OEM number 06K-121-111-J (also listed as 06K121111J, 06K 121 111 J) is a verified OEM-grade direct replacement for a wide range of Volkswagen Group vehicles equipped with EA888 Gen3 (1.8L / 2.0L TSI/TFSI) engines.
If your water pump is failing, you may experience one or more of these symptoms:
- Coolant Leakage: Visible coolant puddles under the vehicle
- Engine Overheating: Temperature gauge consistently rising above normal
- Check Engine Light: Illumination with diagnostic trouble codes
- Audible Squeaking or Pump Shaft Play: Unusual noises from the pump area
⚠️ A failing water pump is a known early point of failure for EA888 Gen3 engines — prompt replacement is essential to prevent overheating and catastrophic engine damage.
| Specification | Details |
|---|---|
| Part Number | 06K121111J 06K-121-111-J |
| Product Name | Water Pump |
| Car Model | Audi A3/S3/Q5 & VW Golf/Jetta/Passat/Tiguan 1.8/2.0 |
| Engine Model | EA888 Gen3 |
| Condition | 100% Brand New |
| Material | High-strength aluminum alloy & precision bearings |
| Cooling Type | Engine coolant circulation |
| Installation | Direct OEM replacement |
| Quality Standard | OEM equivalent / ISO quality control |
Compatible Brands: Audi, Volkswagen (VW), SEAT, Škoda
⚠️ CRITICAL: This water pump is for EA888 Gen3 engines only.
| Model | Chassis / Generation | Drivetrain | Engine | Years |
|---|---|---|---|---|
| Audi A3 / S3 | 8V | FWD / Quattro | 1.8T / 2.0T | 2013-2020 |
| Audi A4 | B9 (8W) | FWD / Quattro | 2.0T | 2015-2024 |
| Audi A5 | B9 (F5) | Quattro | 2.0T | 2016-2024 |
| Audi A6 | C7 / C8 | FWD / Quattro | 2.0T | 2011-2025 |
| Audi A7 | C8 | Quattro | 2.0T | 2018-2025 |
| Audi Q5 | B9 (FY) | Quattro | 2.0T | 2017-2024 |
| Audi Q7 | 4M | Quattro | 2.0T | 2015-2024 |
| Audi TT / TTS | Mk3 (8S) | Quattro | 2.0T | 2014-2023 |
| Model | Generation / Chassis | Drivetrain | Engine | Years |
|---|---|---|---|---|
| Arteon | — | — | 2.0T | 2017- |
| Atlas / Teramont | — | FWD / 4Motion | 2.0T | 2017- |
| Golf / GTI / Golf R | Mk7 / Mk7.5 | FWD / 4Motion | 1.8T / 2.0T | 2012-2020 |
| Golf Alltrack | Mk7 | — | 1.8T | 2016-2019 |
| Jetta / GLI | VI / VII | FWD | 1.8T / 2.0T | 2011- |
| Passat | B7 / B8 | FWD | 1.8T / 2.0T | 2010- |
| Tiguan | MQB | FWD / 4Motion | 2.0T | 2016- |
- This water pump is designed for EA888 Gen3 (1.8L / 2.0L TSI/TFSI) engines only — NOT compatible with EA888 Gen1/Gen2
- Supersession Note: For FAW-VW applications, 06K121111J was superseded by 06K121111S as of April 1, 2019
- Always verify your vehicle's VIN, model year, and engine code before ordering
Our manufacturing and inspection processes ensure every water pump meets or exceeds VAG OEM standards.
| QC Item | Verification Method |
|---|---|
| Dimensional Accuracy | Precision inspection to verify all mounting points, hose connections, and sealing surfaces match OE blueprint specifications |
| Material Composition | High-grade materials analysis to verify durability and heat resistance |
| Thermostat Calibration | 100% testing to verify 113°C opening temperature meets OEM specifications |
| Leakage Test | 100% pressure testing to guarantee zero coolant leakage under operating conditions |
| Durability Cycle Test | 500+ hour thermal cycling and pressure cycling to verify long-term reliability |
| Final Assembly Inspection | 100% visual and functional inspection before packaging |
⚠️ IMPORTANT: Professional Installation Highly Recommended
Replacing the water pump on EA888 Gen3 engines requires specialized tools and expert knowledge of the cooling system.
- Allow the engine to cool completely before starting work
- Drain the cooling system properly — have factory-approved coolant on hand
- Replace the water pump as preventative maintenance at 60,000 miles — with inconsistent service life from the factory, some will fail sooner
- Inspect all coolant hoses and connections for wear — replace if necessary
- New union connector and O-rings are included — always use the new seals provided
- Ensure the engine is completely cool and drain the cooling system
- Disconnect the negative battery terminal
- Remove the accessory drive belt to access the water pump
- Disconnect the coolant hoses and electrical connectors from the pump
- Remove the mounting bolts securing the pump to the engine
- Remove the old pump and clean the mounting surface thoroughly
- CRITICAL: Install the new water pump with the new O-rings and union connector
- Torque the mounting bolts to manufacturer's specified torque settings
- Reconnect all coolant hoses and electrical connectors securely
- CRITICAL: Refill the cooling system with the correct VW-approved coolant mixture and bleed air from the system
- Start the engine and allow it to reach operating temperature
- Check for coolant leaks and verify the cooling fan operates correctly
- Inspection: Every 50,000 km / 12 months. Check for coolant leaks, overheating, or unusual noises
- Replacement: Recommended at 96,000 km (60,000 miles) or immediately if failure symptoms appear
- Note: The EA888 Gen3 water pump is a known early point of failure — proactive replacement is strongly recommended
- Packaging: Each water pump is securely packed in protective packaging to prevent shipping damage
- Includes: Water pump/thermostat assembly + Union connector + O-rings
- Suitable for: Wholesale distributors, auto parts retailers, European specialty repair shops, and DIY enthusiasts
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