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Gates
OE Type ThermostatGates 33737 Engine Coolant Thermostat
| Brand | Gates 33737 |
|---|---|
| 0 | |
| .69 | |
| .98 | |
| 1 | |
| 1.88 | |
| By-Pass Flange Diameter (in) | .92 |
| Design | Reverse Poppet |
| Design | Reverse Poppet |
| Flange Thickness | .05 |
| Gasket Quantity | 0 |
| Height | 2.5 |
| Height | 2.6 |
| Height Between Flanges | 1.75 |
| Height Between Flanges | 1.91 |
| Height from Flange (in) | .69 |
| Includes Installation Tool | No |
| Installation Tool Included | No |
| Jiggle Pin Weep Hole | Yes |
| Material | Stainless Steel, Copper |
| Material | Steel, Copper |
| Number of Gaskets | 0 |
| Number of Jiggle Pins/Check Valves | 1 |
| Number of Seals | 0 |
| OE Comparison Rating | OE Performance |
| Sealing Flange Outside Diameter | 2.51 |
| Sealing Flange Outside Diameter | 2.52 |
| Start to Open Temperature | 77 |
| Start to Open Temperature | 170 |
| Type | OE Type Thermostat |
| Product line | OE Type Thermostat |
| Fits | Nissan, Mercury, and INFINITI · 92 vehicles |
OE type thermostat. Provides precise temperature control with an OEM-equivalent fit.
Reverse poppet design. Helps regulate coolant flow for consistent engine temperature.
Stainless steel and copper. Durable materials support reliable sealing and long service life.
Cross-references Beck/Arnley 143-0682, CSF 3947 and Dorman - HELP 13947 for the same application. See all 19.
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Not what you need? See all Engine Coolant Thermostat options
OE Type Thermostat for Nissan and Infiniti
Gates 33737 is an OE Type Engine Coolant Thermostat built for precise temperature control and a leak-free OEM-equivalent fit. It is a 170-degree thermostat for a wide range of Nissan, INFINITI, and Mercury applications, including Frontier, Xterra, Pathfinder, Quest, 300ZX, and QX4.
The Gates OE Type Thermostat line focuses on direct-fit cooling system service with OE-style construction and temperature calibration. Part number 33737 uses stainless steel and copper materials, a reverse poppet design, and a jiggle pin weep hole to support stable coolant flow and air bleeding during service.
- OE Type thermostat for factory-style cooling system performance
- 170-degree start-to-open temperature for listed applications
- Reverse poppet design for controlled coolant regulation
- Stainless steel and copper construction
- Jiggle pin weep hole included for air purge during installation
- OE Performance comparison rating
- Gates part number 33737
Detailed Product Overview
This thermostat is used to regulate engine coolant flow so the engine reaches and maintains operating temperature within the intended range. For Nissan Frontier, Nissan Xterra, Nissan Pathfinder, Nissan Quest, INFINITI QX4, and related applications, Gates 33737 provides an OE-style replacement option that matches the temperature control requirements listed in the fitment data. The sealing flange dimensions, flange height, and reverse poppet layout support proper housing fitment in the specified cooling system designs.
This part cross-references Beck/Arnley 143-0682 and FEL-PRO 35947 for the same application. Gates 33737 is also listed for Mercury Villager coverage in the fitment data, making it a practical choice when searching for a 170 degree thermostat for Nissan Pathfinder thermostat replacement, Nissan Frontier thermostat replacement, or INFINITI QX4 cooling service.
What It Helps Address
- Engine running too cool or too warm due to thermostat wear
- Delayed warm-up after cold starts
- Temperature fluctuation from a sticking thermostat
- Coolant flow control issues in the thermostat housing
- Cooling system service on listed Nissan, INFINITI, and Mercury vehicles
Installation Notes and Tips
Use the correct gasket or sealant arrangement for the vehicle application; the fitment notes specify that a gasket is not required and silicone should be used where noted. Confirm the thermostat orientation before installation, and verify the housing and sealing surfaces are clean and free of corrosion. Because this is an OE Type thermostat, matching the listed 170-degree specification is important for proper cooling system operation on the covered Nissan and INFINITI models.
Quality Assurance
Gates OE Type Thermostats are engineered for precise temperature control and OEM-equivalent fit. Part number 33737 is built to OE Performance standards for the listed applications.
This part fits 92 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2004 | Nissan | Frontier | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2004 | Nissan | Xterra | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2003 | Nissan | Frontier | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2003 | Nissan | Xterra | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2002 | Mercury | Villager | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2002 | Nissan | Frontier | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2002 | Nissan | Quest | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2002 | Nissan | Xterra | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2001 | Mercury | Villager | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2001 | Nissan | Frontier | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2001 | Nissan | Quest | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2001 | Nissan | Xterra | 3.3L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2000 | INFINITI | QX4 | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2000 | Mercury | Villager | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2000 | Nissan | Frontier | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2000 | Nissan | Pathfinder | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2000 | Nissan | Quest | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 2000 | Nissan | Xterra | 3.3L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1999 | INFINITI | QX4 | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1999 | Mercury | Villager | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1999 | Nissan | Frontier | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1999 | Nissan | Pathfinder | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1999 | Nissan | Quest | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1998 | INFINITI | QX4 | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1998 | Mercury | Villager | 3.0L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1998 | Nissan | Pathfinder | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1998 | Nissan | Quest | 3.0L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1997 | INFINITI | J30 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1997 | INFINITI | QX4 | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1997 | Mercury | Villager | 3.0L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1997 | Nissan | Pathfinder | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1997 | Nissan | Quest | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1996 | INFINITI | J30 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1996 | Mercury | Villager | 3.0L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1996 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1996 | Nissan | Pathfinder | 3.3L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1996 | Nissan | Quest | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1995 | INFINITI | J30 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1995 | Mercury | Villager | 3.0L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1995 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1995 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1995 | Nissan | Pickup | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1995 | Nissan | Quest | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1994 | INFINITI | J30 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1994 | Mercury | Villager | 3.0L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1994 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1994 | Nissan | D21 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1994 | Nissan | Maxima | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1994 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1994 | Nissan | Quest | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1993 | INFINITI | J30 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1993 | Mercury | Villager | 3.0L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1993 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1993 | Nissan | D21 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1993 | Nissan | Maxima | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1993 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1993 | Nissan | Quest | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1992 | INFINITI | M30 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1992 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1992 | Nissan | D21 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1992 | Nissan | Maxima | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1992 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1991 | INFINITI | M30 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1991 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1991 | Nissan | D21 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1991 | Nissan | Maxima | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1991 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1990 | INFINITI | M30 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1990 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1990 | Nissan | D21 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1990 | Nissan | Maxima | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1990 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1989 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1989 | Nissan | D21 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1989 | Nissan | Maxima | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1989 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1988 | Nissan | 200SX | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1988 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1988 | Nissan | D21 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1988 | Nissan | Maxima | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1988 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1987 | Nissan | 200SX | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1987 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1987 | Nissan | D21 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1987 | Nissan | Maxima | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1987 | Nissan | Pathfinder | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1986 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1986 | Nissan | D21 | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1986 | Nissan | Maxima | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1985 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1985 | Nissan | Maxima | 3.0L | V6 | GAS | N/A | 170 Degree; OE Temperature; Gasket not required, use silicone; OE Type Thermostat |
| 1984 | Nissan | 300ZX | 3.0L | V6 | GAS | N/A | 170 Degree; Alternate Temperature; Gasket not required, use silicone; OE Type Thermostat |
| No rows match your filter. | |||||||
Directly replaces or cross-references 19 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Beck/Arnley — 143-0682CSF — 3947Dorman - HELP — 13947Dorman - HELP — 83891FEL-PRO — 35947Four Seasons — 33737Motorad — 268-170Motorad — 7268-170SKF — 3239729388-170488-170714-17021200V5015320172120031U002120042L002120085E00S-394-170