HomeBelts and Cooling > Thermostat and HousingMotorad CH9991 Engine Coolant Water Outlet - Engine Block or Lower
Part #: CH9991

Motorad CH9991 Engine Coolant Water Outlet - Engine Block or Lower

Lower
⚙️ 11 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Volkswagen and Audi, Passat, A4, and A4 Quattro
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Overview of Motorad CH9991 Engine Coolant Water Outlet

The Motorad CH9991 Engine Coolant Water Outlet is designed specifically for select Audi and Volkswagen models, including the A4, A4 Quattro, and Passat. This component plays a critical role in your vehicle's cooling system by ensuring proper coolant flow and temperature regulation.

  • Compatible with Audi A4, A4 Quattro, and Volkswagen Passat
  • Outlet diameter of 1.26 inches for precise fitment
  • Does not include mounting bolts
  • Part number CH9991 for accurate identification
  • Engine coolant water outlet designed for reliable coolant circulation

Product Details and Specifications

The Motorad CH9991 features a 1.26-inch outlet diameter, engineered to match the original equipment specifications for the Audi A4, A4 Quattro, and Volkswagen Passat models. This ensures a secure connection within the cooling system, preventing leaks and maintaining optimal engine temperature. The part is supplied without bolts, allowing for compatibility with existing hardware or aftermarket fasteners. The CH9991 is manufactured to meet stringent quality standards, providing consistent performance in demanding driving conditions.

Compatible Vehicles and Applications

This engine coolant water outlet is compatible with the following vehicles:

  • Audi A4
  • Audi A4 Quattro
  • Volkswagen Passat

It is designed to replace the original water outlet in these models, ensuring proper coolant flow and preventing overheating issues.

Common Issues Addressed by the CH9991 Water Outlet

  • Coolant leaks due to cracked or damaged water outlet housing
  • Engine overheating caused by improper coolant circulation
  • Corrosion or wear in the original water outlet affecting performance
  • Replacement of faulty or worn-out thermostat housing components

Installation Notes and Tips

When installing the Motorad CH9991, ensure the mating surfaces are clean and free of debris to prevent leaks. Since bolts are not included, use the original hardware or appropriate replacements that meet manufacturer specifications. It is recommended to inspect the thermostat and surrounding cooling system components during installation to ensure overall system integrity.

Quality Assurance and Warranty Information

Motorad parts are manufactured to meet or exceed OEM standards, providing reliable performance for your Audi or Volkswagen vehicle. The CH9991 engine coolant water outlet undergoes rigorous quality control to ensure durability and fitment accuracy. Please refer to Motorad's warranty policy for specific coverage details.

BrandMotorad
Part NumberCH9991
Bolts IncludedNo
Outlet Diameter1.26 IN

This part fits 11 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005VolkswagenPassat2.0LL4LowerEngine Coolant Water Outlet - Includes housing and seal
2005VolkswagenPassat1.8LL4LowerEngine Coolant Water Outlet - Includes housing and seal
2004VolkswagenPassat2.0LL4LowerEngine Coolant Water Outlet - Includes housing and seal
2004VolkswagenPassat1.8LL4LowerEngine Coolant Water Outlet - Includes housing and seal
2003VolkswagenPassat1.8LL4LowerEngine Coolant Water Outlet - Includes housing and seal
2002VolkswagenPassat1.8LL4N/AEngine Coolant Water Outlet - Includes housing and seal
2001AudiA41.8LL4Engine BlockEngine Coolant Water Outlet - Includes housing and seal
2001AudiA4 Quattro1.8LL4LowerEngine Coolant Water Outlet - Includes housing and seal
2001VolkswagenPassat1.8LL4LowerEngine Coolant Water Outlet - Includes housing and seal
2000AudiA41.8LL4Engine BlockEngine Coolant Water Outlet - Includes housing and seal
1999AudiA41.8LL4Engine BlockEngine Coolant Water Outlet - Includes housing and seal

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

038121121B06B12112106B121121L85134902-9919CH9991CH9991CO34810NI

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.