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Gates CO34904 Engine Coolant Thermostat Housing Cover
Overview of Gates Coolant Outlet CO34904
The Gates Coolant Outlet CO34904 is a stamped steel engine coolant thermostat housing cover designed for select Nissan and INFINITI vehicles. Engineered to meet OE exact specifications, this thermostat cover ensures reliable coolant flow and system integrity for models like the Nissan 300ZX and INFINITI QX4.
- Constructed from durable stamped steel for long-lasting performance
- OE exact fit for precise compatibility
- Features three bolt holes for secure mounting
- Outlet inside diameter of 1.48 inches and outside diameter of 1.625 inches
- Includes one seal but no gaskets
- Designed without by-pass holes to match original equipment
About the Gates Coolant Outlet Product Line
The Gates Coolant Outlet line focuses on high-quality thermostat covers and coolant outlets that maintain proper engine temperature regulation. This product line is engineered to provide exact fitment and reliable sealing, helping to prevent coolant leaks and maintain optimal engine cooling performance. The CO34904 is part of this line, offering a stamped steel construction that aligns with the durability and precision expected from Gates components.
Detailed Product Description
The CO34904 thermostat housing cover is manufactured from stamped steel, providing strength and resistance to corrosion under typical engine operating conditions. It features three bolt holes for secure attachment and an outlet designed with an inside diameter of 1.48 inches and an outside diameter of 1.625 inches, ensuring proper coolant flow. This thermostat cover does not include by-pass holes, matching the original equipment design for vehicles such as the Nissan Pathfinder and Frontier. The product includes one seal to maintain a tight connection but does not come with additional gaskets.
Compatible Vehicles and Common Applications
- Compatible with Nissan 200SX, 300ZX, D21, Frontier, Pathfinder, Pickup, and Xterra models
- Fits INFINITI M30 and QX4 vehicles
- Used to replace worn or damaged thermostat housing covers
- Helps resolve coolant leaks around the thermostat housing
- Addresses issues related to improper coolant flow or overheating
Installation Notes and Tips
When installing the Gates CO34904 thermostat housing cover, ensure the mating surfaces are clean and free of old gasket material. Since this part includes one seal but no gaskets, verify if your vehicle requires a separate gasket for installation. Tighten the three mounting bolts evenly to the manufacturer’s torque specifications to prevent leaks. Inspect the coolant outlet diameter to confirm compatibility with your vehicle’s cooling system hoses.
Quality Assurance and Warranty
The Gates CO34904 thermostat housing cover is manufactured to meet OE exact standards, ensuring reliable fit and function. Gates is known for rigorous quality control processes, providing durable components designed for long-term use. While specific warranty details are not provided here, Gates products typically come with a limited warranty against defects in material and workmanship.
| Brand | Gates |
| Part Number | CO34904 |
| Position | Coolant Outlet |
| Material | Stamped steel |
| Outlet Outside Diameter | 1.625 |
| Bolt Hole Quantity | 3 |
| Type | Thermostat cover |
| Gasket Quantity | 0 |
| Outlet Inside Diameter | 1.48 |
| 9841 | 1 |
| 9848 | No |
| By-Pass Holes | No |
| Contents | Coolant outlet, gasket |
| Number of Bolt Holes | 3 |
| Number of Gaskets | 0 |
| Number of Seals | 1 |
| OE Exact | Yes |
| Outlet Inside Diameter 1 (in) | 1.48 |
| Outlet Outside Diameter 1 (in) | 1.625 |
| Type | Coolant outlet |
This part fits 50 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2004 | Nissan | Frontier | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 2004 | Nissan | Xterra | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 2003 | Nissan | Frontier | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 2003 | Nissan | Xterra | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 2002 | Nissan | Frontier | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 2002 | Nissan | Xterra | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 2001 | Nissan | Frontier | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 2001 | Nissan | Xterra | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 2000 | INFINITI | QX4 | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 2000 | Nissan | Frontier | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 2000 | Nissan | Pathfinder | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 2000 | Nissan | Xterra | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1999 | INFINITI | QX4 | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1999 | Nissan | Frontier | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1999 | Nissan | Pathfinder | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1998 | INFINITI | QX4 | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1998 | Nissan | Pathfinder | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1997 | INFINITI | QX4 | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1997 | Nissan | Pathfinder | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1996 | Nissan | Pathfinder | 3.3L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1995 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1995 | Nissan | Pickup | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1994 | Nissan | D21 | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1994 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1993 | Nissan | D21 | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1993 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1992 | INFINITI | M30 | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1992 | Nissan | D21 | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1992 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1991 | INFINITI | M30 | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1991 | Nissan | D21 | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1991 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1990 | INFINITI | M30 | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1990 | Nissan | D21 | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1990 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1989 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1989 | Nissan | D21 | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1989 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1988 | Nissan | 200SX | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1988 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1988 | Nissan | D21 | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1988 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1987 | Nissan | 200SX | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1987 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1987 | Nissan | D21 | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1987 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1986 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1986 | Nissan | D21 | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1985 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; Coolant Outlet |
| 1984 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | Engine Coolant Thermostat Housing Cover - Fits multiple vehicle models.; 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.