Standard Ignition RY-729 Engine Water Pump Relay

Name: Standard Ignition RY-729 Engine Water Pump Relay
Brand: Standard Ignition
SKU: FBHK-RY-729
Price: 50.34 USD
Availability: InStock

⚙️ 203 vehicles fit this part

🔍

Select your vehicle to confirm fitment

Verify this part fits before purchasing — free returns if it doesn't

$50.34Free Shipping

🚚Free ShippingNo Cost to Continental U.S.

🔄Free Returns*Wrong fit? No cost

🛡️60-Day ReturnsMoney back guarantee

*Free return shipping only qualifies if our fitment verification tool is used.

🔥

✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.

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

🚗Fitment: Honda and Acura, Accord, HR-V, Insight, Passport, Ridgeline, MDX, RLX, TLX, Civic, CR-V, Fit, Pilot, ILX, RDX, Odyssey, CR-Z, Crosstour, TL, TSX, ZDX, RL, and Accord Crosstour

🔄Easy Returns — Return within 60 days for a full refund

🚚Fast Shipping — Most orders ship same business day before 1pm CST

Not what you need? Click here for all Engine Water Pump Relay options

Reliable Engine Water Pump Relay for Acura and Honda Vehicles

The Standard Ignition RY-729 Engine Water Pump Relay is designed to provide dependable electrical control for your vehicle's water pump system. Compatible with a wide range of Acura and Honda models, this relay ensures proper operation of the engine cooling system.

Connector Shape: Square for secure and precise fitment
Terminal Type: 4 male blade terminals for reliable electrical connections
Voltage: 12V operation suitable for standard automotive electrical systems
Continuous Duty: Not rated for continuous duty, designed for intermittent relay functions
Mounting Bracket: Not included, allowing flexible installation options

Technical Details and Compatibility

The RY-729 relay from Standard Ignition is engineered to meet OEM specifications for engine water pump control in Acura and Honda vehicles. Featuring a square connector shape and four male blade terminals, it ensures a secure and stable electrical connection. Operating at 12 volts, this relay is intended for intermittent duty cycles, controlling the water pump relay function efficiently without continuous load. This part is compatible with multiple Acura and Honda models including Accord, Civic, CR-V, MDX, Odyssey, Pilot, and more, making it a versatile replacement option for your vehicle's cooling system relay needs.

Common Applications and Problem Resolution

Restores proper water pump relay function to maintain engine cooling
Resolves intermittent or failed water pump relay issues causing overheating
Eliminates electrical connection problems due to worn or damaged relay terminals
Prevents engine overheating caused by relay failure in Acura and Honda models
Supports reliable engine temperature regulation for vehicles like the Honda Accord and Acura MDX

Installation Notes and Tips

Installation of the Standard Ignition RY-729 relay requires matching the square connector shape and blade terminal configuration to the vehicle’s wiring harness. Since no mounting bracket is included, ensure the relay is securely fastened in the designated relay socket or bracket within the engine compartment. Verify the 12V electrical system compatibility before installation. It is recommended to disconnect the battery before replacing the relay to avoid electrical shorts or damage.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The RY-729 Engine Water Pump Relay undergoes rigorous quality control testing to provide consistent operation in Acura and Honda vehicles. Please refer to Standard Ignition’s warranty policy for specific coverage details on this relay.

Brand	Standard Ignition
Part Number	RY-729
Connector Shape	Square
Contents	Relay
Continuous Duty	No
Functions	Relay
Mounting Bracket(s) Included	No
Terminal Gender	Male
Terminal Type	Blade
Voltage	12

This part fits 203 vehicles. Search below:

Year	Make	Model	Liters	Cylinders	Fuel Type	Position
2020	Honda	Accord				N/A
2020	Honda	HR-V				N/A
2020	Honda	Insight				N/A
2020	Honda	Passport				N/A
2020	Honda	Ridgeline				N/A
2019	Acura	MDX				N/A
2019	Acura	RLX				N/A
2019	Acura	TLX				N/A
2019	Honda	Accord				N/A
2019	Honda	Civic				N/A
2019	Honda	CR-V				N/A
2019	Honda	Fit				N/A
2019	Honda	HR-V				N/A
2019	Honda	Insight				N/A
2019	Honda	Passport				N/A
2019	Honda	Pilot				N/A
2019	Honda	Ridgeline				N/A
2018	Acura	ILX				N/A
2018	Acura	MDX				N/A
2018	Acura	RDX				N/A
2018	Acura	RLX				N/A
2018	Acura	TLX				N/A
2018	Honda	Accord				N/A
2018	Honda	Civic				N/A
2018	Honda	CR-V				N/A
2018	Honda	Fit				N/A
2018	Honda	HR-V				N/A
2018	Honda	Pilot				N/A
2018	Honda	Ridgeline				N/A
2017	Acura	ILX				N/A
2017	Acura	MDX				N/A
2017	Acura	RDX				N/A
2017	Acura	RLX				N/A
2017	Acura	TLX				N/A
2017	Honda	Accord				N/A
2017	Honda	Civic				N/A
2017	Honda	CR-V				N/A
2017	Honda	Fit				N/A
2017	Honda	HR-V				N/A
2017	Honda	Odyssey				N/A
2017	Honda	Pilot				N/A
2017	Honda	Ridgeline				N/A
2016	Acura	ILX				N/A
2016	Acura	MDX				N/A
2016	Acura	RDX				N/A
2016	Acura	RLX				N/A
2016	Acura	TLX				N/A
2016	Honda	Accord				N/A
2016	Honda	Civic				N/A
2016	Honda	CR-V				N/A
2016	Honda	CR-Z				N/A
2016	Honda	Fit				N/A
2016	Honda	HR-V				N/A
2016	Honda	Odyssey				N/A
2016	Honda	Pilot				N/A
2015	Acura	ILX				N/A
2015	Acura	MDX				N/A
2015	Acura	RDX				N/A
2015	Acura	RLX				N/A
2015	Acura	TLX				N/A
2015	Honda	Accord				N/A
2015	Honda	Civic				N/A
2015	Honda	CR-V				N/A
2015	Honda	CR-Z				N/A
2015	Honda	Crosstour				N/A
2015	Honda	Fit				N/A
2015	Honda	Odyssey				N/A
2015	Honda	Pilot				N/A
2014	Acura	ILX				N/A
2014	Acura	MDX				N/A
2014	Acura	RDX				N/A
2014	Acura	RLX				N/A
2014	Acura	TL				N/A
2014	Acura	TSX				N/A
2014	Honda	Accord				N/A
2014	Honda	Civic				N/A
2014	Honda	CR-V				N/A
2014	Honda	CR-Z				N/A
2014	Honda	Crosstour				N/A
2014	Honda	Fit				N/A
2014	Honda	Insight				N/A
2014	Honda	Odyssey				N/A
2014	Honda	Pilot				N/A
2014	Honda	Ridgeline				N/A
2013	Acura	ILX				N/A
2013	Acura	MDX				N/A
2013	Acura	RDX				N/A
2013	Acura	TL				N/A
2013	Acura	TSX				N/A
2013	Acura	ZDX				N/A
2013	Honda	Accord				N/A
2013	Honda	Civic				N/A
2013	Honda	CR-V				N/A
2013	Honda	CR-Z				N/A
2013	Honda	Crosstour				N/A
2013	Honda	Fit				N/A
2013	Honda	Insight				N/A
2013	Honda	Odyssey				N/A
2013	Honda	Pilot				N/A
2013	Honda	Ridgeline				N/A
2012	Acura	MDX				N/A
2012	Acura	RDX				N/A
2012	Acura	RL				N/A
2012	Acura	TL				N/A
2012	Acura	TSX				N/A
2012	Acura	ZDX				N/A
2012	Honda	Accord				N/A
2012	Honda	Civic				N/A
2012	Honda	CR-V				N/A
2012	Honda	CR-Z				N/A
2012	Honda	Crosstour				N/A
2012	Honda	Fit				N/A
2012	Honda	Insight				N/A
2012	Honda	Odyssey				N/A
2012	Honda	Pilot				N/A
2012	Honda	Ridgeline				N/A
2011	Acura	MDX				N/A
2011	Acura	RDX				N/A
2011	Acura	RL				N/A
2011	Acura	TL				N/A
2011	Acura	TSX				N/A
2011	Acura	ZDX				N/A
2011	Honda	Accord				N/A
2011	Honda	Accord Crosstour				N/A
2011	Honda	Civic				N/A
2011	Honda	CR-V				N/A
2011	Honda	CR-Z				N/A
2011	Honda	Fit				N/A
2011	Honda	Insight				N/A
2011	Honda	Odyssey				N/A
2011	Honda	Pilot				N/A
2011	Honda	Ridgeline				N/A
2010	Acura	MDX				N/A
2010	Acura	RDX				N/A
2010	Acura	RL				N/A
2010	Acura	TL				N/A
2010	Acura	TSX				N/A
2010	Acura	ZDX				N/A
2010	Honda	Accord				N/A
2010	Honda	Accord Crosstour				N/A
2010	Honda	Civic				N/A
2010	Honda	Civic			ELECTRIC/GAS	N/A
2010	Honda	CR-V				N/A
2010	Honda	Fit				N/A
2010	Honda	Insight				N/A
2010	Honda	Odyssey				N/A
2010	Honda	Pilot				N/A
2010	Honda	Ridgeline				N/A
2009	Acura	MDX				N/A
2009	Acura	RDX				N/A
2009	Acura	RL				N/A
2009	Acura	TL				N/A
2009	Acura	TSX				N/A
2009	Honda	Accord				N/A
2009	Honda	Civic				N/A
2009	Honda	Civic			ELECTRIC/GAS	N/A
2009	Honda	CR-V				N/A
2009	Honda	Fit				N/A
2009	Honda	Odyssey				N/A
2009	Honda	Pilot				N/A
2009	Honda	Ridgeline				N/A
2008	Acura	MDX				N/A
2008	Acura	RDX				N/A
2008	Acura	RL				N/A
2008	Acura	TL				N/A
2008	Acura	TSX				N/A
2008	Honda	Accord				N/A
2008	Honda	Civic				N/A
2008	Honda	Civic			ELECTRIC/GAS	N/A
2008	Honda	CR-V				N/A
2008	Honda	Fit				N/A
2008	Honda	Odyssey				N/A
2008	Honda	Pilot				N/A
2008	Honda	Ridgeline				N/A
2007	Acura	MDX				N/A
2007	Acura	RDX				N/A
2007	Acura	RL				N/A
2007	Acura	TL				N/A
2007	Acura	TSX				N/A
2007	Honda	Accord				N/A
2007	Honda	Civic	1.3L	L4		N/A
2007	Honda	Civic				N/A
2007	Honda	CR-V				N/A
2007	Honda	Fit				N/A
2007	Honda	Odyssey				N/A
2007	Honda	Ridgeline				N/A
2006	Acura	RL				N/A
2006	Acura	TL				N/A
2006	Acura	TSX				N/A
2006	Honda	Accord				N/A
2006	Honda	Civic				N/A
2006	Honda	Civic	1.3L	L4		N/A
2006	Honda	Odyssey				N/A
2006	Honda	Ridgeline				N/A
2005	Acura	RL				N/A
2005	Acura	TL				N/A
2005	Acura	TSX				N/A
2005	Honda	Accord				N/A
2005	Honda	Odyssey				N/A
2004	Acura	TL				N/A
2004	Acura	TSX				N/A
2004	Honda	Accord				N/A
2003	Honda	Accord				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:

1R16312031525-038839794SDA00339794SDA00456-2036AR6234R6234RAA1772

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