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Gates 34851 Engine Coolant Thermostat
| Brand | Gates 34851 |
|---|---|
| Outlet Outside Diameter | .6 |
| Outlet Outside Diameter | 1.327 |
| Bolt Hole Quantity | 3 |
| Type | Integrated housing thermostat |
| Jiggle Pin Weep Hole | Yes |
| Start to Open Temperature | 180 |
| Start to Open Temperature | 82 |
| Outlet Inside Diameter | .41 |
| Outlet Inside Diameter | 1.08 |
| Electric | No |
| 9841 | 1 |
| Check Valve | No |
| Electric | No |
| Jiggle Pin/Check Valve | Yes |
| Number of Bolt Holes | 3 |
| Number of Jiggle Pins/Check Valves | 1 |
| Number of Seals | 1 |
| OE Comparison Rating | Oe performance |
| OE Exact | No |
| Outlet Inside Diameter 1 (in) | 1.08 |
| Outlet Inside Diameter 2 (in) | .41 |
| Outlet Outside Diameter 1 (in) | 1.327 |
| Outlet Outside Diameter 2 (in) | .6 |
| Temperature (C) | 82 |
| Product line | Integrated Housing Thermostat |
| Fits | Honda · 13 vehicles |
Integrated housing thermostat. Combines the thermostat and housing in one OE-performance design.
OE performance. Built as a quality aftermarket alternative to OE dealership parts.
Jiggle pin weep hole. Helps vent trapped air for more consistent temperature control.
Cross-references Davico Mfg 49718, Dorman - OE Solutions 902-5835 and Focus Auto Parts 86185 for the same application. See all 5.
Integrated thermostat housing for Honda cooling systems
Gates 34851 is an integrated housing thermostat built for precise engine temperature control in select Honda applications. It is an OE-performance replacement for vehicles that use a thermostat and housing assembly in one unit, helping maintain stable coolant flow and operating temperature.
Compatible with 2013-2015 Honda Crosstour, 2016-2017 Honda Accord, 2016-2020 Honda Pilot, and 2017-2019 Honda Ridgeline, this Gates Integrated Housing Thermostat is built around the factory-style 180 degree opening temperature and includes a seal for the application.
Key features
- Integrated housing thermostat design for simplified OE-style replacement
- Start-to-open temperature: 180°F / 82°C
- OE Performance rating for factory-style temperature control
- Jiggle pin weep hole and jiggle pin/check valve included in the design
- 3 bolt holes for the specified housing pattern
- Non-electric thermostat construction
- Outlet dimensions: 1.327 in and 0.6 in outside diameter; 1.08 in and 0.41 in inside diameter
- Seal included for the listed applications
Product details
Gates Integrated Housing Thermostat 34851 is engineered for vehicles that use an integrated thermostat housing rather than a separate thermostat-only service part. Gates develops aftermarket thermostat solutions for these newer cooling-system designs, giving technicians and owners an OE-style replacement option for temperature regulation and coolant management. This part cross-references Dorman - OE Solutions 902-5835 for the same application.
What it helps address
- Engine running too cool or too hot due to thermostat control issues
- Delayed warm-up or unstable operating temperature
- Coolant flow problems related to a worn integrated housing assembly
- Temperature regulation concerns on Honda Pilot, Honda Ridgeline, Honda Accord, and Honda Crosstour applications
- Leak points at the thermostat housing seal area
Installation notes and tips
- Verify the vehicle uses the integrated housing style before ordering.
- Confirm the 180°F / 82°C temperature specification matches the OE requirement.
- Inspect mating surfaces, coolant condition, and hose connections during service.
- Follow the manufacturer service procedure for coolant refill and air bleeding after installation.
- Use the listed fitment only: 2013-2015 Honda Crosstour, 2016-2017 Honda Accord, 2016-2020 Honda Pilot, and 2017-2019 Honda Ridgeline.
Quality assurance
Gates backs this thermostat housing with OE-performance engineering and application-focused development for integrated cooling-system designs. Part number 34851 is built as an aftermarket alternative to OE dealership replacement for the listed Honda vehicles.
| Year | Make | Model | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2020 | Honda | Pilot | Automatic | 3.5L | V6 | GAS | N/A | 180 Degree; OE Temperature; Seal included; Integrated Housing Thermostat |
| 2019 | Honda | Pilot | Automatic | 3.5L | V6 | GAS | N/A | 180 Degree; OE Temperature; Seal included; Integrated Housing Thermostat |
| 2019 | Honda | Ridgeline | — | 3.5L | V6 | GAS | N/A | 180 Degree; OE Temperature; Seal included; Integrated Housing Thermostat |
| 2018 | Honda | Pilot | Automatic | 3.5L | V6 | GAS | N/A | 180 Degree; OE Temperature; Seal included; Integrated Housing Thermostat |
| 2018 | Honda | Ridgeline | — | 3.5L | V6 | GAS | N/A | 180 Degree; OE Temperature; Seal included; Integrated Housing Thermostat |
| 2017 | Honda | Accord | Automatic | 3.5L | V6 | GAS | N/A | 180 Degree; OE Temperature; Seal included; Integrated Housing Thermostat |
| 2017 | Honda | Pilot | Automatic | 3.5L | V6 | GAS | N/A | 180 Degree; OE Temperature; Seal included; Integrated Housing Thermostat |
| 2017 | Honda | Ridgeline | — | 3.5L | V6 | GAS | N/A | 180 Degree; OE Temperature; Seal included; Integrated Housing Thermostat |
| 2016 | Honda | Accord | Automatic | 3.5L | V6 | GAS | N/A | 180 Degree; OE Temperature; Seal included; Integrated Housing Thermostat |
| 2016 | Honda | Pilot | Automatic | 3.5L | V6 | GAS | N/A | 180 Degree; OE Temperature; Seal included; Integrated Housing Thermostat |
| 2015 | Honda | Crosstour | — | 3.5L | V6 | GAS | N/A | 180 Degree; OE Temperature; Seal included; Integrated Housing Thermostat |
| 2014 | Honda | Crosstour | — | 3.5L | V6 | GAS | N/A | 180 Degree; OE Temperature; Seal included; Integrated Housing Thermostat |
| 2013 | Honda | Crosstour | — | 3.5L | V6 | GAS | N/A | 180 Degree; OE Temperature; Seal included; Integrated Housing Thermostat |
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