Gates
Coolant Outlet

Gates CO34968 Engine Coolant Water Outlet - Upper

Brand Gates CO34968
Position Upper
Material Cast aluminum
Outlet Outside Diameter 1.37
Bolt Hole Quantity 3
Type Coolant outlet
Gasket Quantity 1
Outlet Inside Diameter 1.22
9841 0
9848 No
By-Pass Holes No
Contents Coolant outlet, gasket
Number of Bolt Holes 3
Number of Gaskets 1
Number of Seals 0
OE Exact No
Outlet Inside Diameter 1 (in) 1.22
Outlet Outside Diameter 1 (in) 1.37
Type Coolant outlet
Product line Coolant Outlet
Fits Toyota · 26 vehicles

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

Cast aluminum. Helps resist common material issues found in many aftermarket options.

Includes gasket. Ready for installation with the coolant outlet.

Cross-references 1633162040 for the same application. See all 1.

$62.51Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $62.51
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

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.

This part fits 26 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
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
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1633162040