HomeBelts and Cooling > Thermostat and HousingGates CO34968 Engine Coolant Water Outlet - Upper
Part #: CO34968

Gates CO34968 Engine Coolant Water Outlet - Upper

Coolant Outlet, Upper
26 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Coolant Outlet, Upper
Fitment: Toyota, 4Runner, T100, Tacoma, and Tundra
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Gates Coolant Outlet for Toyota Upper Cooling Repair

The Gates Coolant Outlet CO34968 is an engine coolant water outlet built for upper cooling system service on select Toyota trucks and SUVs. It is designed to match original fit and function while addressing common aftermarket material and design concerns with a cast aluminum construction.

Compatible with Toyota Tacoma, Tundra, 4Runner, and T100 applications, this coolant outlet supports a direct replacement for the upper engine coolant hose flange on the listed vehicles. The Gates Coolant Outlet line focuses on practical OE-style coverage for cooling system repairs, and CO34968 follows that approach with a housing that is built for long service life.

Key Features

  • Cast aluminum coolant outlet for cooling system repair
  • Upper engine coolant water outlet design
  • Outlet inside diameter: 1.22 in.
  • Outlet outside diameter: 1.37 in.
  • Three bolt holes for OE-style mounting
  • Includes coolant outlet and gasket
  • Gates Coolant Outlet line coverage for select Toyota applications
  • Part number: CO34968

Detailed Description

Gates CO34968 is an engine coolant water outlet intended for upper hose connection service on select Toyota models. It is made from cast aluminum and built to fit and perform like the original component, helping restore proper coolant routing at the thermostat housing area. This part number, CO34968, is listed for 1995-2004 Toyota Tacoma, 2000-2004 Toyota Tundra, 1996-2002 Toyota 4Runner, and 1995-1998 Toyota T100 upper applications.

The Gates Coolant Outlet product line is aimed at replacing common aftermarket weaknesses with a more durable, OE-style solution. For buyers searching for a Toyota Tacoma coolant outlet, Toyota Tundra upper coolant hose flange, or Toyota 4Runner engine coolant water outlet, CO34968 provides a direct-fit repair option for the listed vehicles.

What It Helps Repair

  • Coolant leaks at the upper engine coolant outlet
  • Cracked or corroded coolant hose flange surfaces
  • Improper sealing at the thermostat housing connection
  • Cooling system service issues on Toyota Tacoma, Tundra, 4Runner, and T100
  • Replacement of a worn coolant outlet on the upper hose path

Installation Notes and Tips

Verify the vehicle year, model, and upper position before ordering. This part is listed for 1995-2004 Toyota Tacoma, 2000-2004 Toyota Tundra, 1996-2002 Toyota 4Runner, and 1995-1998 Toyota T100. Confirm hose diameter and bolt-hole layout against the original component, and inspect the mating surface for corrosion or residue before installation.

This part cross-references 1633162040 for the same application.

Quality Assurance

Gates designs its coolant outlet program to address common design, manufacturing, and material issues found in other aftermarket options. CO34968 is built as an OE-style replacement with cast aluminum construction and application-specific fitment for the listed Toyota cooling system repairs.

BrandGates
Part NumberCO34968
PositionCoolant Outlet, Upper
MaterialCast aluminum
Outlet Outside Diameter1.37
Bolt Hole Quantity3
TypeCoolant outlet
Gasket Quantity1
Outlet Inside Diameter1.22
98410
9848No
By-Pass HolesNo
ContentsCoolant outlet, gasket
Number of Bolt Holes3
Number of Gaskets1
Number of Seals0
OE ExactNo
Outlet Inside Diameter 1 (in)1.22
Outlet Outside Diameter 1 (in)1.37
TypeCoolant outlet

This part fits 26 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2004ToyotaTacoma3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2004ToyotaTundra3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2003ToyotaTacoma3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2003ToyotaTundra3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2002Toyota4Runner3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2002ToyotaTacoma3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2002ToyotaTundra3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2001Toyota4Runner3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2001ToyotaTacoma3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2001ToyotaTundra3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2000Toyota4Runner3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2000ToyotaTacoma3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
2000ToyotaTundra3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1999Toyota4Runner3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1999ToyotaTacoma3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1998Toyota4Runner3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1998ToyotaT1003.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1998ToyotaTacoma3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1997Toyota4Runner3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1997ToyotaT1003.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1997ToyotaTacoma3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1996Toyota4Runner3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1996ToyotaT1003.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1996ToyotaTacoma3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1995ToyotaT1003.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet
1995ToyotaTacoma3.4LV6GASUpperEngine Coolant Hose Flange comes with seal included; Coolant Outlet

* 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:

1633162040

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