Gates
Coolant Outlet

Gates CO34745 Engine Coolant Water Outlet

Brand Gates CO34745
1
No
Bolt Hole Quantity 2
By-Pass Holes No
Contents Coolant Outlet, Seal
Gasket Quantity 0
Material Plastic
Number of Bolt Holes 2
Number of Gaskets 0
Number of Seals 1
OE Exact No
Outlet Inside Diameter .745
Outlet Inside Diameter 1.3
Outlet Inside Diameter 1 (in) 1.3
Outlet Inside Diameter 2 (in) .745
Outlet Outside Diameter .534
Outlet Outside Diameter .545
Outlet Outside Diameter 1.048
Outlet Outside Diameter 1 (in) 1.048
Outlet Outside Diameter 2 (in) .534
Outlet Outside Diameter 3 (in) .545
Type Coolant Outlet
Type Coolant Outlet
Product line Coolant Outlet
Fits Chevrolet, Pontiac, Oldsmobile, and Buick · 32 vehicles

OE-style fit. Designed to perform like the original for a straightforward replacement.

Plastic construction. Helps resist common material issues found in many aftermarket options.

Includes seal. Comes with the coolant outlet and one seal for a complete repair.

Cross-references Dorman - OE Solutions 902-105, Four Seasons 85164 and Motorad CH5164 for the same application. See all 7.

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

Gates Coolant Outlet CO34745

The Gates Coolant Outlet CO34745 is an engine coolant water outlet built for direct replacement service on select GM compact and midsize applications. It is made from plastic and includes a seal, with outlet dimensions that match the original-style hose and housing connections for a proper fit.

Gates Coolant Outlets are part of the Coolant Outlet line, which covers water outlets through complete thermostat housing assemblies. This line is focused on OE-style fit and function with a practical, cost-effective design for long service life.

Key Features

  • Engine coolant water outlet for cooling system repair
  • Plastic construction for OE-style replacement fit
  • Includes seal for the outlet connection
  • Two-bolt mounting design
  • Outlet dimensions: 1.3 in, .745 in, 1.048 in, .534 in, and .545 in
  • No gasket required
  • No bypass holes

Detailed Description

Gates CO34745 is engineered as a replacement coolant outlet for vehicles that use a molded coolant hose flange or thermostat housing outlet in the cooling circuit. It is listed for 1996-2002 Chevrolet Cavalier, 1996-2002 Pontiac Sunfire, 1999-2001 Oldsmobile Alero, 1996-2001 Pontiac Grand Am, 1997-1999 Chevrolet Malibu, 1996-1998 Buick Skylark, and 1996-1998 Oldsmobile Achieva. If you are searching for a coolant outlet for a 1996-2002 Chevrolet Cavalier or a 1996-2002 Pontiac Sunfire, CO34745 is a direct-fit option to compare against the original part.

This part cross-references Dorman OE Solutions 902-105 and Motorad CH5164 for the same application.

Common Repair Uses

  • Cracked or warped coolant outlet housing
  • Coolant seepage at the hose flange or seal surface
  • Broken mounting ears or bolt-hole damage
  • Cooling system leaks at the thermostat housing outlet
  • Replacement of a worn coolant hose connection point

Installation Notes

Verify the outlet diameter, bolt-hole count, and hose connection layout before installation. Clean the mating surface thoroughly and inspect the sealing area for corrosion, residue, or old seal material. Confirm the vehicle application by year, make, and model before ordering, especially on 1996-2002 Chevrolet Cavalier, Pontiac Sunfire, and related GM platforms.

Quality Assurance

Gates designs this Coolant Outlet line to address common material and manufacturing issues seen in many aftermarket alternatives while maintaining OE-style fit and performance. The CO34745 is built for dependable cooling system service and long-term use in the listed applications.

This part fits 32 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2002ChevroletCavalier2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2002PontiacSunfire2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2001ChevroletCavalier2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2001OldsmobileAlero2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2001PontiacGrand Am2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2001PontiacSunfire2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2000ChevroletCavalier2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2000OldsmobileAlero2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2000PontiacGrand Am2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2000PontiacSunfire2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1999ChevroletCavalier2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1999ChevroletMalibu2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1999OldsmobileAlero2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1999PontiacGrand Am2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1999PontiacSunfire2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1998BuickSkylark2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1998ChevroletCavalier2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1998ChevroletMalibu2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1998OldsmobileAchieva2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1998PontiacGrand Am2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1998PontiacSunfire2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1997BuickSkylark2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1997ChevroletCavalier2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1997ChevroletMalibu2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1997OldsmobileAchieva2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1997PontiacGrand Am2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1997PontiacSunfire2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1996BuickSkylark2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1996ChevroletCavalier2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1996OldsmobileAchieva2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1996PontiacGrand Am2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1996PontiacSunfire2.4LL4GASN/AEngine Coolant Hose Flange comes with seal included; Coolant Outlet
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - OE Solutions — 902-105Four Seasons — 85164Motorad — CH516415-17098151642457525924577132