Fel-Pro 35741 Engine Coolant Thermostat O-Ring

Name: Fel-Pro 35741 Engine Coolant Thermostat O-Ring
Brand: Fel-Pro
SKU: BCWV-35741
Price: 7.92 USD
Availability: InStock

⚙️ 217 vehicles fit this part

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✅OE Direct Replacement — Bolt-on fit, no modifications needed

🚗Fitment: Acura and Honda, MDX, ILX, RDX, Accord, Civic, Odyssey, Passport, Pilot, Ridgeline, RLX, TLX, CR-V, Crosstour, TSX, CSX, Element, and RSX

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Not what you need? Click here for all Engine Coolant Thermostat O-Ring options

Reliable Engine Coolant Thermostat O-Ring for Acura and Honda Vehicles

The Fel-Pro 35741 Engine Coolant Thermostat O-Ring is designed to provide a precise seal for the thermostat housing in various Acura and Honda models. Engineered with premium-grade materials, this O-ring ensures consistent performance and durability under demanding engine conditions.

Premium grade material for enhanced durability and heat resistance
Inside diameter options: 2.525 inches (64.1 mm) for accurate fitment
Thickness of 0.220 inches (5.5 mm) for reliable sealing
Compatible with multiple Acura and Honda models including Accord, Civic, CR-V, and more
Part number 35741 for easy identification and replacement

Detailed Product Description and Specifications

The Fel-Pro 35741 Engine Coolant Thermostat O-Ring is manufactured to meet strict OEM specifications, ensuring a secure seal around the thermostat housing. With an inside diameter of 2.525 inches (64.1 mm) and a thickness of 0.220 inches (5.5 mm), this O-ring fits precisely to prevent coolant leaks and maintain optimal engine temperature regulation. The premium grade material resists degradation from heat and coolant exposure, making it suitable for long-term use in Acura and Honda vehicles such as the Accord, Civic, CR-V, MDX, and Pilot.

Compatible Vehicles and Common Applications

Acura models: ILX, MDX, RDX, RLX, RSX, TLX, TSX
Honda models: Accord, Civic, Clarity, CR-V, Crosstour, CSX, Element, HR-V, Insight, Integra, Odyssey, Passport, Pilot, Ridgeline
Used to seal the engine coolant thermostat housing to prevent leaks
Helps maintain proper engine temperature by ensuring thermostat functionality
Prevents coolant loss and potential engine overheating issues

Installation Notes and Tips

When installing the Fel-Pro 35741 O-Ring, ensure the thermostat housing surface is clean and free of debris. Lubricate the O-ring lightly with coolant or a compatible lubricant to ease installation and prevent damage. Verify the correct orientation and seating of the O-ring to avoid leaks. This part requires no mounting holes, simplifying the installation process.

Quality Assurance and Warranty Information

Fel-Pro parts are engineered to meet or exceed OEM standards, providing reliable sealing solutions for engine cooling systems. The 35741 Engine Coolant Thermostat O-Ring is manufactured with premium materials to withstand high temperatures and chemical exposure. While specific warranty details may vary, Fel-Pro products typically come with a limited warranty against defects in material and workmanship.

This part fits 217 vehicles. Search below:

Year	Make	Model	Liters	Cylinders	Position
2025	Acura	Integra	2.0L	L4	N/A
2025	Acura	MDX	3.5L	V6	N/A
2025	Acura	RDX	2.0L	L4	N/A
2025	Acura	TLX	2.0L	L4	N/A
2025	Honda	Civic	2.0L	L4	N/A
2025	Honda	HR-V	2.0L	L4	N/A
2025	Honda	Odyssey	3.5L	V6	N/A
2025	Honda	Passport	3.5L	V6	N/A
2025	Honda	Pilot	3.5L	V6	N/A
2025	Honda	Ridgeline	3.5L	V6	N/A
2024	Acura	Integra	1.5L	L4	N/A
2024	Acura	MDX	3.5L	V6	N/A
2024	Acura	RDX	2.0L	L4	N/A
2024	Acura	TLX	2.0L	L4	N/A
2024	Honda	Civic	2.0L	L4	N/A
2024	Honda	HR-V	2.0L	L4	N/A
2024	Honda	Odyssey	3.5L	V6	N/A
2024	Honda	Passport	3.5L	V6	N/A
2024	Honda	Pilot	3.5L	V6	N/A
2024	Honda	Ridgeline	3.5L	V6	N/A
2023	Acura	Integra	1.5L	L4	N/A
2023	Acura	MDX	3.5L	V6	N/A
2023	Acura	RDX	2.0L	L4	N/A
2023	Acura	TLX	2.0L	L4	N/A
2023	Honda	Accord	1.5L	L4	N/A
2023	Honda	Civic	2.0L	L4	N/A
2023	Honda	CR-V	1.5L	L4	N/A
2023	Honda	HR-V	2.0L	L4	N/A
2023	Honda	Odyssey	3.5L	V6	N/A
2023	Honda	Passport	3.5L	V6	N/A
2023	Honda	Pilot	3.5L	V6	N/A
2023	Honda	Ridgeline	3.5L	V6	N/A
2022	Acura	ILX	2.4L	L4	N/A
2022	Acura	MDX	3.5L	V6	N/A
2022	Acura	RDX	2.0L	L4	N/A
2022	Acura	TLX	2.0L	L4	N/A
2022	Honda	Accord	1.5L	L4	N/A
2022	Honda	Civic	2.0L	L4	N/A
2022	Honda	Insight	1.5L	L4	N/A
2022	Honda	Odyssey	3.5L	V6	N/A
2022	Honda	Passport	3.5L	V6	N/A
2022	Honda	Pilot	3.5L	V6	N/A
2022	Honda	Ridgeline	3.5L	V6	N/A
2021	Acura	ILX	2.4L	L4	N/A
2021	Acura	RDX	2.0L	L4	N/A
2021	Acura	TLX	2.0L	L4	N/A
2021	Honda	Accord	2.0L	L4	N/A
2021	Honda	Civic	2.0L	L4	N/A
2021	Honda	Clarity	1.5L	L4	N/A
2021	Honda	Insight	1.5L	L4	N/A
2021	Honda	Odyssey	3.5L	V6	N/A
2021	Honda	Passport	3.5L	V6	N/A
2021	Honda	Pilot	3.5L	V6	N/A
2021	Honda	Ridgeline	3.5L	V6	N/A
2020	Acura	ILX	2.4L	L4	N/A
2020	Acura	MDX	3.5L	V6	N/A
2020	Acura	MDX	3.0L	V6	N/A
2020	Acura	RDX	2.0L	L4	N/A
2020	Acura	RLX	3.5L	V6	N/A
2020	Acura	TLX	3.5L	V6	N/A
2020	Acura	TLX	2.4L	L4	N/A
2020	Honda	Accord	2.0L	L4	N/A
2020	Honda	Civic	2.0L	L4	N/A
2020	Honda	Clarity	1.5L	L4	N/A
2020	Honda	Insight	1.5L	L4	N/A
2020	Honda	Odyssey	3.5L	V6	N/A
2020	Honda	Passport	3.5L	V6	N/A
2020	Honda	Pilot	3.5L	V6	N/A
2020	Honda	Ridgeline	3.5L	V6	N/A
2019	Acura	ILX	2.4L	L4	N/A
2019	Acura	MDX	3.5L	V6	N/A
2019	Acura	MDX	3.0L	V6	N/A
2019	Acura	RDX	2.0L	L4	N/A
2019	Acura	RLX	3.5L	V6	N/A
2019	Acura	TLX	3.5L	V6	N/A
2019	Acura	TLX	2.4L	L4	N/A
2019	Honda	Accord	2.0L	L4	N/A
2019	Honda	Civic	2.0L	L4	N/A
2019	Honda	Clarity	1.5L	L4	N/A
2019	Honda	CR-V	2.4L	L4	N/A
2019	Honda	Insight	1.5L	L4	N/A
2019	Honda	Odyssey	3.5L	V6	N/A
2019	Honda	Passport	3.5L	V6	N/A
2019	Honda	Pilot	3.5L	V6	N/A
2019	Honda	Ridgeline	3.5L	V6	N/A
2018	Acura	ILX	2.4L	L4	N/A
2018	Acura	MDX	3.5L	V6	N/A
2018	Acura	MDX	3.0L	V6	N/A
2018	Acura	RLX	3.5L	V6	N/A
2018	Acura	TLX	3.5L	V6	N/A
2018	Acura	TLX	2.4L	L4	N/A
2018	Honda	Accord	2.0L	L4	N/A
2018	Honda	Civic	2.0L	L4	N/A
2018	Honda	Clarity	1.5L	L4	N/A
2018	Honda	CR-V	2.4L	L4	N/A
2018	Honda	Odyssey	3.5L	V6	N/A
2018	Honda	Pilot	3.5L	V6	N/A
2018	Honda	Ridgeline	3.5L	V6	N/A
2017	Acura	ILX	2.4L	L4	N/A
2017	Acura	MDX	3.5L	V6	N/A
2017	Acura	MDX	3.0L	V6	N/A
2017	Acura	RLX	3.5L	V6	N/A
2017	Acura	TLX	3.5L	V6	N/A
2017	Acura	TLX	2.4L	L4	N/A
2017	Honda	Accord	3.5L	V6	N/A
2017	Honda	Accord	2.4L	L4	N/A
2017	Honda	Civic	2.0L	L4	N/A
2017	Honda	CR-V	2.4L	L4	N/A
2017	Honda	Pilot	3.5L	V6	N/A
2017	Honda	Ridgeline	3.5L	V6	N/A
2016	Acura	ILX	2.4L	L4	N/A
2016	Acura	MDX	3.5L	V6	N/A
2016	Acura	RLX	3.5L	V6	N/A
2016	Acura	TLX	3.5L	V6	N/A
2016	Acura	TLX	2.4L	L4	N/A
2016	Honda	Accord	3.5L	V6	N/A
2016	Honda	Accord	2.4L	L4	N/A
2016	Honda	Civic	2.0L	L4	N/A
2016	Honda	CR-V	2.4L	L4	N/A
2016	Honda	Pilot	3.5L	V6	N/A
2015	Acura	ILX	2.4L	L4	N/A
2015	Acura	MDX	3.5L	V6	N/A
2015	Acura	RLX	3.5L	V6	N/A
2015	Acura	TLX	3.5L	V6	N/A
2015	Acura	TLX	2.4L	L4	N/A
2015	Honda	Accord	3.5L	V6	N/A
2015	Honda	Accord	2.4L	L4	N/A
2015	Honda	Civic	2.4L	L4	N/A
2015	Honda	CR-V	2.4L	L4	N/A
2015	Honda	Crosstour	3.5L	V6	N/A
2015	Honda	Crosstour	2.4L	L4	N/A
2014	Acura	ILX	2.4L	L4	N/A
2014	Acura	MDX	3.5L	V6	N/A
2014	Acura	RLX	3.5L	V6	N/A
2014	Acura	TSX	2.4L	L4	N/A
2014	Honda	Accord	3.5L	V6	N/A
2014	Honda	Accord	2.4L	L4	N/A
2014	Honda	Civic	2.4L	L4	N/A
2014	Honda	CR-V	2.4L	L4	N/A
2014	Honda	Crosstour	3.5L	V6	N/A
2014	Honda	Crosstour	2.4L	L4	N/A
2013	Acura	ILX	2.4L	L4	N/A
2013	Acura	TSX	2.4L	L4	N/A
2013	Honda	Accord	3.5L	V6	N/A
2013	Honda	Accord	2.4L	L4	N/A
2013	Honda	Civic	2.4L	L4	N/A
2013	Honda	CR-V	2.4L	L4	N/A
2013	Honda	Crosstour	3.5L	V6	N/A
2013	Honda	Crosstour	2.4L	L4	N/A
2012	Acura	RDX	2.3L	L4	N/A
2012	Acura	TSX	2.4L	L4	N/A
2012	Honda	Accord	2.4L	L4	N/A
2012	Honda	Civic	2.4L	L4	N/A
2012	Honda	CR-V	2.4L	L4	N/A
2012	Honda	Crosstour	2.4L	L4	N/A
2011	Acura	CSX	2.0L	L4	N/A
2011	Acura	RDX	2.3L	L4	N/A
2011	Acura	TSX	2.4L	L4	N/A
2011	Honda	Accord	2.4L	L4	N/A
2011	Honda	Civic	2.0L	L4	N/A
2011	Honda	CR-V	2.4L	L4	N/A
2011	Honda	Element	2.4L	L4	N/A
2010	Acura	CSX	2.0L	L4	N/A
2010	Acura	RDX	2.3L	L4	N/A
2010	Acura	TSX	2.4L	L4	N/A
2010	Honda	Accord	2.4L	L4	N/A
2010	Honda	Civic	2.0L	L4	N/A
2010	Honda	CR-V	2.4L	L4	N/A
2010	Honda	Element	2.4L	L4	N/A
2009	Acura	CSX	2.0L	L4	N/A
2009	Acura	RDX	2.3L	L4	N/A
2009	Acura	TSX	2.4L	L4	N/A
2009	Honda	Accord	2.4L	L4	N/A
2009	Honda	Civic	2.0L	L4	N/A
2009	Honda	CR-V	2.4L	L4	N/A
2009	Honda	Element	2.4L	L4	N/A
2008	Acura	CSX	2.0L	L4	N/A
2008	Acura	RDX	2.3L	L4	N/A
2008	Acura	TSX	2.4L	L4	N/A
2008	Honda	Accord	2.4L	L4	N/A
2008	Honda	Civic	2.0L	L4	N/A
2008	Honda	CR-V	2.4L	L4	N/A
2008	Honda	Element	2.4L	L4	N/A
2007	Acura	CSX	2.0L	L4	N/A
2007	Acura	RDX	2.3L	L4	N/A
2007	Acura	TSX	2.4L	L4	N/A
2007	Honda	Accord	2.4L	L4	N/A
2007	Honda	Civic	2.0L	L4	N/A
2007	Honda	CR-V	2.4L	L4	N/A
2007	Honda	Element	2.4L	L4	N/A
2006	Acura	CSX	2.0L	L4	N/A
2006	Acura	RSX	2.0L	L4	N/A
2006	Acura	TSX	2.4L	L4	N/A
2006	Honda	Accord	2.4L	L4	N/A
2006	Honda	Civic	2.0L	L4	N/A
2006	Honda	CR-V	2.4L	L4	N/A
2006	Honda	Element	2.4L	L4	N/A
2005	Acura	RSX	2.0L	L4	N/A
2005	Acura	TSX	2.4L	L4	N/A
2005	Honda	Accord	2.4L	L4	N/A
2005	Honda	Civic	2.0L	L4	N/A
2005	Honda	CR-V	2.4L	L4	N/A
2005	Honda	Element	2.4L	L4	N/A
2004	Acura	RSX	2.0L	L4	N/A
2004	Acura	TSX	2.4L	L4	N/A
2004	Honda	Accord	2.4L	L4	N/A
2004	Honda	Civic	2.0L	L4	N/A
2004	Honda	CR-V	2.4L	L4	N/A
2004	Honda	Element	2.4L	L4	N/A
2003	Acura	RSX	2.0L	L4	N/A
2003	Honda	Accord	2.4L	L4	N/A
2003	Honda	Civic	2.0L	L4	N/A
2003	Honda	CR-V	2.4L	L4	N/A
2003	Honda	Element	2.4L	L4	N/A
2002	Acura	RSX	2.0L	L4	N/A
2002	Honda	Civic	2.0L	L4	N/A
2002	Honda	CR-V	2.4L	L4	N/A

* 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:

11406119305PNA00319305RAAA0119306PNA003C32021C32056WO8678

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.