A circuit opening relay is a critical component in your vehicle's fuel system, responsible for activating the fuel pump. Ensuring you select a high-quality replacement is paramount for maintaining optimal engine performance and preventing potential starting issues. This guide will help you navigate the options available for this essential automotive part.
Looking for the best Automotive Replacement Circuit Opening Relays?
Discover now our comparison of the best Automotive Replacement Circuit Opening Relays. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Automotive Replacement Circuit Opening Relays are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Automotive Replacement Circuit Opening Relays in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
No. 1
Toyota 85910-33010 Circuit Opening Relay Assembly (For Efi)
- Direct Fit
- Genuine OEM Factory Original part
- Guaranteed against poor workmanship and material defects
- Japan
No. 2
Circuit Opening Relay Compatible With Toyota Pickup 1989 1990 1991 1992 1993 1994 1995 PC-858494
- Includes 1 (One) Circuit Opening Relay
- Fits list of vehicles in image gallery fitment chart
- Exceptional Quality and Performance: This OE replacement circuit opening relay is designed to meet, if not exceed, the performance and quality standards of the original equipment installed on your vehicle. Experience the same high-level performance as...
- Direct Replacement, No Fuss: This OE replacement circuit opening relay is meticulously designed for your specific vehicle's make and model, promising a direct fit. Installation is as straightforward as it gets - no fuss, no complications. Experience a...
- Perfect Compatibility: Compatibility is key. Make sure to check our product specifications (in image gallery) to confirm that this OE replacement circuit opening relay matches your vehicle's requirements. Get the perfect fit and optimal performance every...
No. 3
YCUPONE RZ-0159 Fuel Pump Circuit Opening Relay 39400-S84-003 39400S82A01 Compatible with CL MDX TL Accord...
- The Fuel Pump Main Relay Compatible for： 2001-2002 CL, 2001-2002 MDX, 1999-2001 TL
- The Fuel Pump Main Relay Compatible for：1998-2002 Accord, 1998-2004 Odyssey, 2003-2004 Pilot, 1998-2001 Prelude
- Part Number：RZ-0159 39400-S84-003 39400S82A01 39400S84A01
- The RZ-0159 Fuel Pump Circuit Opening Relay is designed to regulate fuel delivery to your engine, ensuring consistent and reliable performance. By activating the fuel pump circuit at the precise moment, this relay safeguards the fuel pump from potential...
- Please use the parts search tool in the upper left corner check year/brand/model to make sure our part are same as your old one.
No. 4
RZ-0159 Fuel Pump Circuit Opening Relay for 1998-2002 Honda Accord /1998-2004 Odyssey /2003-2004 Pilot...
- ✔Compatible with: For 1998-2002 Honda Accord丨1998-2004 Honda Odyssey丨2003-2004 Honda Pilot丨1998-2001 Honda Prelude. For 2001-2003 Acura CL丨2001-2002 Acura MDX丨1999-2003 Acura TL. Please check the second main picture to confirm circuit opening...
- ✔Reliable Fuel Pump Functionality: The RZ-0159 Fuel Pump Circuit Opening Relay is engineered to maintain consistent fuel delivery to your engine, ensuring smooth and reliable performance. By opening the fuel pump circuit at the correct time, this relay...
- ✔High-Durability Construction: Built with high-quality PP plastics materials, the RZ-0159 relay is designed to withstand the rigors of engine operation and environmental conditions. Its robust construction ensures long-term reliability and performance...
- ✔Simple Installation: This fuel pump relay is designed for easy installation. It features a user-friendly plug-and-play design that allows for straightforward replacement of the old or faulty relay, restore your vehicle’s fuel system functionality...
- ✔After-Sales Service: We offer 24 hours customer service and 1 year product service, If you are encounter product installation, product quality and other problems, please feel free to contact us.
No. 5
Circuit Opening Relay for 1984-1989 Toyota Pickup
- 【❗Fitment Details❗:】Circuit Opening Relay OE
- ✅【OE Standards:】Our Product Is Designed And Manufactured With Modern Tooling, Ensuring Optimal Quality And Reliability
- ✅【Quality Manufacturing:】Replacement Parts are Specifically Designed to the Same Specifications and Use Better, More Durable Materials Than Those Provided by the OEM
- ✅【Direct Replacement:】Our Direct Fit Replacement Product Installs Seamlessly, Just Like the Factory Unit
- ✅【Road Tested:】Each Product Undergoes Rigorous Inspection to Ensure Utmost Reliability and Quality
No. 6
Toyota 85910-30050 Circuit Opening Relay Assembly (For Efi)
- Direct Fit
- Genuine OEM Factory Original part
- Guaranteed against poor workmanship and material defects
- Japan
No. 7
WMAutoPart Fuel Pump/Circuit Opening Relay 16235
- Rapidly dissipates heat for cooler operating temperatures and longer part life
- Precise short-circuit protection
- Mounting and connectors identical to OE
- OE form, fit and function for precise fit and reliable operation
- Precise fit and size for ease of installation
No. 8
Geradepart RY-302 Circuit Opening Relay Fit for Toyota Camry Corolla Fit for Rav4 Tacoma Tundra Prius Sienna...
- 【Replacement OE Part Number & Year & Liter 】Our Circuit Opening Relay Replaces RY-302, 1R1367, 90080-87008, 90084-98025, 203-0133, 203-0136, AR614, 36017, AR332, AR...
- 【Compatible with Scion Vehicles】 Circuit Opening Relay Fit for 2004-2006 XA | 2004-2006 XB
- 【Compatible with Lexus Vehicles】 Circuit Opening Relay Fit for 1997-2003 ES300 | 2004-2006 ES330 | 2000 LS400 | 1999-2000 RX300 | 2004-2006 RX330 | 2007-2009 RX350 | 2006-2008 RX400H
- 【Compatible with Toyota Vehicles】 Circuit Opening Relay Fit for 1996-2001 4RUNNER | 2000-2001 AVALON | 1997-2009 CAMRY | 2000-2005 CELICA | 1998-2007 COROLLA | 2000-2005 ECHO | 2003-2007 MATRIX | 2000-2005 MR2 SPYDER | 2001-2003 PRIUS | 1998-2007 Fit...
- 【Premium Materials】 Constructed with high-temperature resistant PA70 plastic and precision copper terminals for excellent conductivity and long-term durability.
No. 9
Ohleats 4-Pack 4 Pin 12V 30A Heavy Duty Stable Relay Replacement for Motor Automotive, Multi-Purpose...
- 【Practical Function】: There are 4 pin and 5 pin relays to choose from. You can also choose a 2-pack or 4-pack. These 12V 30A relays can be used to control the circuits of high-current load components on vehicles, allowing the components to function...
- 【Safety Design】: It adopts silver alloy contact design, and the surface is not easy to oxidize. The all-copper electromagnetic coil can make the temperature rise lower and the suction power stronger. It can withstand larger currents, making working...
- 【Reliable Quantity】: The shell of this relay is made of black plastic material, which has excellent insulation and is waterproof and flame retardant. Its pins are made of copper, which has good electrical conductivity and is not easy to deform and...
- 【Easy to Use】: The operation of the car relay is very simple. There is no need other tools, just connect the relay with the wires. Plus, it is small and compact in size which makes it easy to store in a toolbox at home or in the trunk of your car for...
- 【Wide Application】: This relay is versatile. It can be widely used in automobile taillights, engine compartments, electric cooling fans, electric water pumps, electric fuel pumps, shaving door handle solenoid valves, trunk solenoid valves and other...
No. 10
WMAutoPart Fuel Pump Circuit Opening Relay 19116962
- Rapidly dissipates heat for cooler operating temperatures and longer part life
- Precise short-circuit protection
- Mounting and connectors identical to OE
- OE form, fit and function for precise fit and reliable operation
- Precise fit and size for ease of installation
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Last update on 2026-03-20 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Automotive Replacement Circuit Opening Relays
Maintenance and Lifespan
Circuit opening relays are generally designed for long-term use, but they can fail over time due to wear and tear or electrical issues. Symptoms of a failing relay can include intermittent starting problems, the engine cutting out unexpectedly, or a complete lack of fuel pump operation. Regular visual inspection for corrosion or damage can help identify potential issues early.Frequently Asked Questions
What are the common symptoms of a failing circuit opening relay?
Common signs include difficulty starting the engine, the engine stalling after starting, or intermittent power loss while driving. You might also notice the engine cranks but doesn't start, indicating a lack of fuel delivery.
How do I know if my car needs a new circuit opening relay?
If your fuel pump isn't engaging when the ignition is turned on (you won't hear the usual hum) and the engine won't start or runs erratically, the relay is a likely culprit. Testing the relay's functionality with a multimeter is a good diagnostic step.
Can I use a universal circuit opening relay if the exact part is unavailable?
While some universal relays exist, it's highly recommended to use a part specifically designed for your vehicle's make and model. Incorrect wiring or specifications can lead to electrical problems or damage to your fuel system.
What is the difference between a circuit opening relay and a fuel pump relay?
In many vehicles, these terms refer to the same component. The circuit opening relay's primary function is to control the fuel pump's operation, hence the interchangeable use of the terms.
How long does a circuit opening relay typically last?
A well-functioning relay can last the lifetime of the vehicle, often exceeding 100,000 miles. However, factors like electrical stress, heat, and vibration can shorten their lifespan.
