Four Seasons
Water Outlet

Four Seasons 85166 Engine Coolant Water Outlet

Brand Four Seasons 85166
Bolt Hole Center To Bolt Hole Center 2.39
Bolt Hole Center To Bolt Hole Center 2.438
Description Engine Coolant Components
Gasket Or Seal Included Not Included
Inlet Dia. IN 1.051
Material Aluminum
Maximum Height 3.036
Meets / Exceeds OEM? Yes
Mnt Flange Width IN 0.429
Style w/o Thermostat
Thermostat Included? Not Included
Type Outlet
Product line Water Outlet
Fits Buick, Saturn, Chevrolet, Pontiac, and Oldsmobile · 162 vehicles

OE direct replacement. Meets or exceeds OEM requirements for dependable fit and function.

Aluminum construction. Lightweight, corrosion-resistant outlet for lasting cooling performance.

Thermostat not included. Use with your existing thermostat for a straightforward replacement.

Cross-references Dorman - Conduct-Tite 85216, Dorman - HELP 31010 and Four Seasons 85166 for the same application. See all 27.

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Free returns within 60 days if it doesn't fit when fitment is verified.

Engine Coolant Water Outlet for GM Applications

Four Seasons Water Outlet 85166 is an aluminum engine coolant water outlet for vehicles that use a thermostat housing-style outlet without the thermostat included. It is built to meet or exceed OEM requirements and is shaped for direct replacement service on a wide range of Buick, Chevrolet, Oldsmobile, and Pontiac applications.

For shoppers searching for a water outlet for a 2000-2005 Chevrolet Impala, 1994-2005 Pontiac Grand Am, or 1994-1996 Buick Regal, this Four Seasons 85166 part provides the correct coolant passage connection in a durable aluminum design.

Key Features

  • Aluminum construction for engine coolant service
  • Outlet style, w/o thermostat
  • Thermostat not included
  • Gasket or seal not included
  • Inlet diameter: 1.051 in.
  • Mounting flange width: 0.429 in.
  • Bolt hole center spacing: 2.39 in. and 2.438 in.
  • Maximum height: 3.036 in.
  • Meets or exceeds OEM specifications

Product Details

Four Seasons 85166 is part of the Water Outlet line within the Belts and Cooling category, made for engine coolant routing where the outlet housing connects to the cooling system. The aluminum body helps provide a stable replacement for worn or corroded coolant outlets, and the OE-style dimensions support proper fitment on listed GM vehicles. This part cross-references Dorman - HELP 31010 and Motorad 5166KT for the same application.

Fits 1991-1995 Oldsmobile Cutlass Supreme, N/A; Fits 1991-1995 Pontiac Grand Prix, N/A; Fits 1991-1994 Chevrolet Lumina, N/A; Fits 1994-2005 Pontiac Grand Am, N/A; Fits 1994-2005 Chevrolet Monte Carlo, N/A; Fits 1994-2005 Buick Century, N/A; Fits 1994-1998 Buick Skylark, N/A; Fits 1994-1996 Buick Regal, N/A; Fits 1994-1996 Chevrolet Corsica, N/A; Fits 1994-1996 Oldsmobile Cutlass Ciera, N/A; Fits 1994-1997 Oldsmobile Cutlass Supreme, N/A; Fits 1994-1998 Oldsmobile Achieva, N/A; Fits 1994-1999 Oldsmobile Cutlass, N/A; Fits 1994-2003 Pontiac Grand Prix, N/A; Fits 1995-2001 Chevrolet Lumina, N/A; Fits 1996 Chevrolet Lumina APV, N/A; Fits 1996 Chevrolet Lumina Van, N/A; Fits 1996-1998 Pontiac Trans Sport, N/A; Fits 1996-2004 Oldsmobile Silhouette, N/A; Fits 1997-2005 Chevrolet Malibu, N/A; Fits 1999-2004 Oldsmobile Alero, N/A; Fits 1999-2006 Pontiac Montana, N/A; Fits 2000-2005 Chevrolet Impala, N/A; Fits 2001-2005 Pontiac Aztek, N/A; Fits 2002-2007 Buick Rendezvous, N/A; Fits 2005-2006 Buick Terraza, N/A; Fits 2005-2006 Chevrolet Uplander, N/A; Fits 2005-2007 Saturn Relay, N/A.

What It Helps Resolve

  • Coolant leaks at a cracked or corroded outlet housing
  • Improper sealing at the engine coolant connection
  • Overheating caused by a damaged coolant outlet
  • Fitment issues from a warped or worn thermostat housing outlet
  • Replacement needs on GM cooling system service jobs

Installation Notes and Tips

Verify the inlet diameter, bolt-hole spacing, and mounting flange dimensions before installation. Because the gasket or seal is not included, reuse is not recommended unless the existing seal is confirmed serviceable and the application allows it. Clean the mating surfaces thoroughly and inspect the thermostat housing area for corrosion or debris before assembly.

Quality Assurance

Four Seasons 85166 is manufactured to meet or exceed OEM specifications for the listed applications. The aluminum construction and OE-style dimensions support consistent cooling-system service on compatible Buick, Chevrolet, Oldsmobile, Pontiac, and Saturn models.

This part fits 162 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeLitersCylindersPositionNotes
2007BuickRendezvous———N/ACompatible with various car and truck makes/models.; Water Outlet
2007SaturnRelay———N/ACompatible with various car and truck makes/models.; Water Outlet
2006BuickRendezvous—3.5LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2006BuickTerraza—3.5LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2006ChevroletUplander—3.5LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2006PontiacMontana—3.5LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2006SaturnRelay———N/ACompatible with various car and truck makes/models.; Water Outlet
2005BuickCenturySedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2005BuickRendezvous—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2005BuickRendezvous—3.6LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2005BuickTerraza———N/ACompatible with various car and truck makes/models.; Water Outlet
2005ChevroletImpala—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2005ChevroletMalibu—2.2LL4N/ACompatible with various car and truck makes/models.; Water Outlet
2005ChevroletMonte Carlo—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2005ChevroletUplander———N/ACompatible with various car and truck makes/models.; Water Outlet
2005PontiacAztek———N/ACompatible with various car and truck makes/models.; Water Outlet
2005PontiacGrand Am—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2005PontiacMontana———N/ACompatible with various car and truck makes/models.; Water Outlet
2005SaturnRelay———N/ACompatible with various car and truck makes/models.; Water Outlet
2004BuickCenturySedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2004BuickRendezvous—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2004ChevroletImpala—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2004ChevroletMalibu—2.2LL4N/ACompatible with various car and truck makes/models.; Water Outlet
2004ChevroletMonte Carlo—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2004OldsmobileAlero—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2004OldsmobileSilhouette———N/ACompatible with various car and truck makes/models.; Water Outlet
2004PontiacAztek———N/ACompatible with various car and truck makes/models.; Water Outlet
2004PontiacGrand Am—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2004PontiacMontana———N/ACompatible with various car and truck makes/models.; Water Outlet
2003BuickCenturySedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2003BuickRendezvous———N/ACompatible with various car and truck makes/models.; Water Outlet
2003ChevroletImpala—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2003ChevroletMalibu———N/ACompatible with various car and truck makes/models.; Water Outlet
2003ChevroletMonte Carlo—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2003OldsmobileAlero—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2003OldsmobileSilhouette———N/ACompatible with various car and truck makes/models.; Water Outlet
2003PontiacAztek———N/ACompatible with various car and truck makes/models.; Water Outlet
2003PontiacGrand Am—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2003PontiacGrand Prix—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2003PontiacMontana———N/ACompatible with various car and truck makes/models.; Water Outlet
2002BuickCenturySedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2002BuickRendezvous———N/ACompatible with various car and truck makes/models.; Water Outlet
2002ChevroletImpala—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2002ChevroletMalibu———N/ACompatible with various car and truck makes/models.; Water Outlet
2002ChevroletMonte Carlo—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2002OldsmobileAlero—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2002OldsmobileSilhouette———N/ACompatible with various car and truck makes/models.; Water Outlet
2002PontiacAztek———N/ACompatible with various car and truck makes/models.; Water Outlet
2002PontiacGrand Am—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2002PontiacGrand Prix—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2002PontiacMontana———N/ACompatible with various car and truck makes/models.; Water Outlet
2001BuickCenturySedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2001ChevroletImpala—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2001ChevroletLumina———N/ACompatible with various car and truck makes/models.; Water Outlet
2001ChevroletMalibu———N/ACompatible with various car and truck makes/models.; Water Outlet
2001ChevroletMonte Carlo—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2001OldsmobileAlero—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2001OldsmobileSilhouette———N/ACompatible with various car and truck makes/models.; Water Outlet
2001PontiacAztek———N/ACompatible with various car and truck makes/models.; Water Outlet
2001PontiacGrand Am—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2001PontiacGrand Prix—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2001PontiacMontana———N/ACompatible with various car and truck makes/models.; Water Outlet
2000BuickCenturySedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2000ChevroletImpala—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2000ChevroletLumina———N/ACompatible with various car and truck makes/models.; Water Outlet
2000ChevroletMalibu———N/ACompatible with various car and truck makes/models.; Water Outlet
2000ChevroletMonte Carlo—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2000OldsmobileAlero—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2000OldsmobileSilhouette———N/ACompatible with various car and truck makes/models.; Water Outlet
2000PontiacGrand Am—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2000PontiacGrand Prix—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
2000PontiacMontana———N/ACompatible with various car and truck makes/models.; Water Outlet
1999BuickCenturySedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1999ChevroletLumina—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1999ChevroletMalibu—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1999ChevroletMonte Carlo—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1999OldsmobileAlero—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1999OldsmobileCutlass———N/ACompatible with various car and truck makes/models.; Water Outlet
1999OldsmobileSilhouette———N/ACompatible with various car and truck makes/models.; Water Outlet
1999PontiacGrand Am—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1999PontiacGrand Prix—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1999PontiacMontana———N/ACompatible with various car and truck makes/models.; Water Outlet
1998BuickCenturySedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1998BuickSkylark—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1998ChevroletLumina—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1998ChevroletMalibu—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1998ChevroletMonte Carlo—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1998OldsmobileAchieva—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1998OldsmobileCutlass———N/ACompatible with various car and truck makes/models.; Water Outlet
1998OldsmobileSilhouette———N/ACompatible with various car and truck makes/models.; Water Outlet
1998PontiacGrand Am—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1998PontiacGrand Prix—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1998PontiacTrans Sport———N/ACompatible with various car and truck makes/models.; Water Outlet
1997BuickCenturySedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1997BuickSkylark—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1997ChevroletLumina—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1997ChevroletMalibu—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1997ChevroletMonte Carlo—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1997OldsmobileAchieva—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1997OldsmobileCutlass———N/ACompatible with various car and truck makes/models.; Water Outlet
1997OldsmobileCutlass Supreme———N/ACompatible with various car and truck makes/models.; Water Outlet
1997OldsmobileSilhouette———N/ACompatible with various car and truck makes/models.; Water Outlet
1997PontiacGrand Am—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1997PontiacGrand Prix—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1997PontiacTrans Sport———N/ACompatible with various car and truck makes/models.; Water Outlet
1996BuickCenturySedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1996BuickRegalSedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1996BuickRegalCoupe3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1996BuickSkylark—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1996ChevroletCorsica—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1996ChevroletLumina—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1996ChevroletLumina APV———N/ACompatible with various car and truck makes/models.; Water Outlet
1996ChevroletLumina Van———N/ACompatible with various car and truck makes/models.; Water Outlet
1996ChevroletMonte Carlo—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1996OldsmobileAchieva—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1996OldsmobileCutlass———N/ACompatible with various car and truck makes/models.; Water Outlet
1996OldsmobileCutlass Ciera—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1996OldsmobileCutlass Supreme—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1996OldsmobileSilhouette———N/ACompatible with various car and truck makes/models.; Water Outlet
1996PontiacGrand Am—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1996PontiacGrand Prix—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1996PontiacTrans Sport———N/ACompatible with various car and truck makes/models.; Water Outlet
1995BuickCenturySedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1995BuickRegalSedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1995BuickRegalCoupe3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1995BuickSkylark—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1995ChevroletCorsica—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1995ChevroletLumina—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1995ChevroletLumina—3.4LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1995ChevroletMonte Carlo—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1995OldsmobileAchieva—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1995OldsmobileCutlass———N/ACompatible with various car and truck makes/models.; Water Outlet
1995OldsmobileCutlass Ciera—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1995OldsmobileCutlass Supreme—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1995OldsmobileCutlass Supreme—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
1995PontiacGrand Am—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1995PontiacGrand Prix—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1995PontiacGrand Prix—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
1994BuickCenturySedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1994BuickRegalSedan3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1994BuickRegalCoupe3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1994BuickSkylark—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1994ChevroletCorsica—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1994ChevroletLumina—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
1994OldsmobileAchieva—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1994OldsmobileCutlass———N/ACompatible with various car and truck makes/models.; Water Outlet
1994OldsmobileCutlass Ciera—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1994OldsmobileCutlass Cruiser———N/ACompatible with various car and truck makes/models.; Water Outlet
1994OldsmobileCutlass Supreme—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1994OldsmobileCutlass Supreme—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
1994PontiacGrand Am—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1994PontiacGrand Prix—3.1LV6N/ACompatible with various car and truck makes/models.; Water Outlet
1994PontiacGrand Prix—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
1993ChevroletLumina—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
1993OldsmobileCutlass Supreme—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
1993PontiacGrand Prix—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
1992ChevroletLumina—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
1992OldsmobileCutlass Supreme—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
1992PontiacGrand Prix—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
1991ChevroletLumina—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
1991OldsmobileCutlass Supreme—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
1991PontiacGrand Prix—3.4LV6N/AEngine Coolant Water Outlet; Aluminum; Water Outlet
Directly replaces or cross-references 27 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - Conduct-Tite — 85216Dorman - HELP — 31010Four Seasons — 85166Motorad — 5166KTMotorad — CH5166PRT — 81521615160015160727751427804270221481516660517416051787902200410182344101823841118516611185216AO5102AO5107AO5116CWK815166W5102W5107W77514W78016