HomeBelts and Cooling > Hoses and PipesFour Seasons 85685 Engine Coolant Outlet Flange - Rear
Part #: 85685

Four Seasons 85685 Engine Coolant Outlet Flange - Rear

Coolant Flange, Rear
20 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Coolant Flange, Rear
Fitment: Audi and Volkswagen, A4 Quattro, S4, A4, and Passat
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Overview of Four Seasons Coolant Flange 85685

The Four Seasons Coolant Flange 85685 is designed for reliable engine coolant management in select Audi and Volkswagen vehicles. Engineered to meet or exceed OEM specifications, this plastic engine coolant outlet flange ensures proper coolant flow and system integrity for models like the Audi A4, A4 Quattro, Passat, and S4.

  • Constructed from durable plastic material for corrosion resistance
  • Includes three outlets with precise outside diameters for secure hose connections
  • Two mounting holes for stable installation (3.175 inches center-to-center)
  • Compatible with vehicles without a thermostat lip design
  • Meets or exceeds OEM quality standards for dependable performance

Four Seasons Coolant Flange Product Line Details

The Coolant Flange product line by Four Seasons focuses on essential engine coolant components designed to maintain optimal cooling system function. This line emphasizes compatibility and durability, providing parts that integrate seamlessly with factory cooling systems. The 85685 flange is part of this line, offering a precise fit and reliable coolant outlet management for specific Audi and Volkswagen models.

Technical Specifications and Features

This engine coolant outlet flange features three outlets with outside diameters of 1.360 inches, 1.290 inches, and a hose diameter of approximately 1.505 inches (38.227 mm). The flange base width measures 0.284 inches (7.214 mm), and the mounting holes are spaced 3.175 inches (80.645 mm) apart center-to-center. The flange does not include mounting hardware, gaskets, or screws, so these components must be sourced separately. It is designed without a lip for a thermostat, making it suitable for cooling systems that do not require this feature.

Common Applications and Problem Solving

  • Replacement of cracked or damaged coolant outlet flanges in Audi A4, A4 Quattro, Passat, and S4 models
  • Resolving coolant leaks caused by worn or broken flange components
  • Restoring proper coolant flow and preventing overheating issues
  • Addressing coolant system failures related to flange mounting or outlet integrity
  • Upgrading OEM parts with a flange that meets or exceeds factory standards

Installation Notes and Tips

When installing the Four Seasons Coolant Flange 85685, ensure the mounting surface is clean and free of debris. Since mounting hardware and gaskets are not included, use OEM or compatible parts to secure the flange and seal coolant connections properly. Verify the correct orientation of the three outlets to match the vehicle’s coolant hose routing. Tighten mounting bolts evenly to avoid flange distortion and potential leaks.

Quality Assurance and Warranty

Four Seasons Coolant Flange 85685 is manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in material and workmanship. This flange is engineered to provide consistent coolant system operation for Audi and Volkswagen vehicles listed in the fitment.

BrandFour Seasons
Part Number85685
PositionCoolant Flange, Rear
Base Width IN0.284
Base Width MM7.214
Bld Screw Included?Not Included
Blt Hole A to Ctr IN3.175
Blt Hole A to Ctr MM80.645
Bypas Dia Length MM12.700
Bypas Dia. Length IN0.500
BypasB Dia Length IN0.500
BypasB Dia Length MM12.700
Bypass B Dia. IN1.125
Bypass B Dia. MM28.448
Bypass Dia. IN0.875
Bypass Dia. MM22.225
DescriptionEngine Coolant Components
Gasket Or Seal IncludedNot Included
Hose B Dia. MM34.544
Hose C Dia. MM32.770
Hose Dia. IN1.505
Hose Dia. MM38.227
Lip For Thermostat?No
MaterialPlastic
Meets / Exceeds OEM?Yes
Mounting Hardware IncludedNot Included
Mounting Hole Quantity2
Number of Outlets3.000
Outlet 2 Outside Diameter1.360
Outlet 3 Outside Diameter1.290
Outlet Quantity3
Stylew/o Thermostat
Symetrical Base?No
T-Stat Open Dia. IN1.255
T-Stat Open Dia. MM31.890
TypeCoolant Flange

This part fits 20 vehicles. Search below:

YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
2002AudiA4 QuattroWagon1.8LL4N/ACoolant Flange
2002AudiA4 QuattroWagon3.0LV6N/ACoolant Flange
2002AudiS4AvantN/ACoolant Flange
2001AudiA4N/ACoolant Flange
2001AudiA4 QuattroN/ACoolant Flange
2001AudiS4AvantN/ACoolant Flange
2001VolkswagenPassat1.8LL4RearCoolant Flange
2000AudiA4N/ACoolant Flange
2000AudiA4 QuattroN/ACoolant Flange
2000VolkswagenPassat1.8LL4RearCoolant Flange
1999AudiA4N/ACoolant Flange
1999AudiA4 QuattroN/ACoolant Flange
1999VolkswagenPassat1.8LL4RearCoolant Flange
1998AudiA4N/ACoolant Flange
1998AudiA4 QuattroN/ACoolant Flange
1998VolkswagenPassat1.8LL4RearCoolant Flange
1997AudiA4N/ACoolant Flange
1997AudiA4 QuattroN/ACoolant Flange
1996AudiA4N/ACoolant Flange
1996AudiA4 QuattroN/ACoolant Flange

* 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:

058121132058121133B295432605199081571385685902886CH2886W95432

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