OE Quality
60-Day Returns

Gates CO34967 Engine Coolant Water Outlet
Reliable Engine Coolant Water Outlet for Select GM and Isuzu Models
The Gates Coolant Outlet CO34967 is engineered to provide a precise fit and durable performance for various Buick, Chevrolet, GMC, Hummer, Isuzu, and Saab vehicles. Designed with cast aluminum construction, this engine coolant water outlet ensures efficient coolant flow and long-lasting service.
- Constructed from durable cast aluminum for corrosion resistance
- Exact OE fit with 2 bolt holes for secure mounting
- Integrated seal included for reliable coolant containment
- Outlet outside diameter: 1.33 inches; inside diameter: 1.09 inches
- Compatible with multiple models including Chevrolet Trailblazer and GMC Envoy
About the Gates Coolant Outlet Product Line
The Gates Coolant Outlet line focuses on delivering high-quality engine coolant water outlets designed to meet or exceed original equipment specifications. This product line emphasizes precision fitment and material durability, ensuring proper coolant system function and preventing leaks. The CO34967 is part of this line, offering an integrated seal and cast aluminum construction tailored for specific vehicle applications.
Product Details and Specifications
The CO34967 engine coolant water outlet features a cast aluminum body that resists corrosion and withstands engine heat. It includes two bolt holes for secure installation and an integrated seal to maintain a tight coolant system connection without the need for additional gaskets. The outlet measures 1.33 inches on the outside diameter and 1.09 inches on the inside diameter, matching exact OE dimensions for a precise fit. This part is designed without by-pass holes and is compatible with a range of vehicles such as the Buick Rainier, Chevrolet Colorado, GMC Canyon, Hummer H3, Isuzu i-290, and Saab 9-7x.
Common Applications and Issues Addressed
- Replacement of worn or cracked coolant outlets causing coolant leaks
- Resolving overheating issues due to improper coolant flow
- Fixing coolant system pressure loss from damaged seals
- Addressing corrosion-related failures in original aluminum outlets
- Maintaining proper engine temperature regulation in GM and Isuzu vehicles
Installation Notes and Tips
Ensure the engine is cool before beginning installation to avoid injury. Remove the old coolant outlet carefully, inspecting the mounting surface for debris or damage. The CO34967 includes an integrated seal, so no additional gaskets are required. Tighten the two mounting bolts evenly to the manufacturer’s torque specifications to prevent leaks. Verify coolant levels and check for leaks after installation.
Quality Assurance and Warranty
The Gates Coolant Outlet CO34967 is manufactured to meet exact OE specifications, ensuring reliable performance and fitment. Gates products undergo rigorous quality control to maintain durability and function. This part is an exact OE replacement, providing confidence in compatibility and longevity. Warranty details should be confirmed with the product documentation or supplier.
| Brand | Gates |
| Part Number | CO34967 |
| Position | Coolant Outlet |
| Material | Cast aluminum |
| Outlet Outside Diameter | 1.33 |
| Bolt Hole Quantity | 2 |
| Type | Coolant outlet |
| Gasket Quantity | 0 |
| Outlet Inside Diameter | 1.09 |
| 9841 | 0 |
| 9848 | No |
| By-Pass Holes | No |
| Contents | Coolant outlet w/ integrated seal |
| Contents | Coolant outlet, integrated seal |
| Number of Bolt Holes | 2 |
| Number of Gaskets | 0 |
| Number of Seals | 0 |
| OE Exact | Yes |
| Outlet Inside Diameter 1 (in) | 1.09 |
| Outlet Outside Diameter 1 (in) | 1.33 |
| Type | Coolant outlet |
This part fits 53 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2012 | Chevrolet | Colorado | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2012 | Chevrolet | Colorado | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2012 | GMC | Canyon | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2012 | GMC | Canyon | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2011 | Chevrolet | Colorado | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2011 | Chevrolet | Colorado | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2011 | GMC | Canyon | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2011 | GMC | Canyon | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2010 | Chevrolet | Colorado | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2010 | Chevrolet | Colorado | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2010 | GMC | Canyon | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2010 | GMC | Canyon | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2010 | Hummer | H3 | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2010 | Hummer | H3T | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2009 | Chevrolet | Colorado | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2009 | Chevrolet | Colorado | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2009 | Chevrolet | Trailblazer | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2009 | GMC | Canyon | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2009 | GMC | Canyon | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2009 | GMC | Envoy | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2009 | Hummer | H3 | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2009 | Hummer | H3T | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2009 | Saab | 9-7x | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2008 | Chevrolet | Colorado | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2008 | Chevrolet | Colorado | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2008 | Chevrolet | Trailblazer | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2008 | GMC | Canyon | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2008 | GMC | Canyon | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2008 | GMC | Envoy | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2008 | Hummer | H3 | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2008 | Isuzu | Ascender | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2008 | Isuzu | i-290 | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2008 | Isuzu | i-370 | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2008 | Saab | 9-7x | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2007 | Buick | Rainier | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2007 | Chevrolet | Colorado | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2007 | Chevrolet | Colorado | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2007 | Chevrolet | Trailblazer | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2007 | GMC | Canyon | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2007 | GMC | Canyon | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2007 | GMC | Envoy | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2007 | Hummer | H3 | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2007 | Isuzu | Ascender | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2007 | Isuzu | i-290 | 2.9L | L4 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2007 | Isuzu | i-370 | 3.7L | L5 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2007 | Saab | 9-7x | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2006 | Buick | Rainier | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2006 | Chevrolet | Trailblazer | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2006 | Chevrolet | Trailblazer EXT | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2006 | GMC | Envoy | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2006 | GMC | Envoy XL | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2006 | Isuzu | Ascender | 4.2L | L6 | GAS | N/A | Engine Coolant Hose Flange comes with seal included; Coolant Outlet |
| 2006 | Saab | 9-7x | 4.2L | L6 | GAS | N/A | Engine 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.