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The Best Automotive Replacement Transmission Relays

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A transmission relay is a critical electrical component that controls the flow of power to your vehicle's transmission. When it malfunctions, it can lead to shifting problems, stalling, or a complete loss of drive. Ensuring you select a high-quality replacement is essential for restoring your car's performance and preventing further damage.

Looking for the best Automotive Replacement Transmission Relays?

Discover now our comparison of the best Automotive Replacement Transmission 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 Transmission 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 Transmission 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.

SaleNo. 1
Standard Motor Products HR-117 Transmission Relay Assorted, One Size
  • Country Of Origin : China
  • The Package Height Of The Product Is 2.082 Inches
  • The Package Length Of The Product Is 7.381 Inches
  • The Package Width Of The Product Is 5.412 Inches
No. 2
Starter Relay Compatible With Plymouth Barracuda Manual Transmission 1967 1968 1969 1970 PC-855664
  • Includes 1 (One) Starter Relay
  • Fits list of vehicles in image gallery fitment chart
  • Exceptional Quality and Performance: This OE replacement starter 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 your...
  • Direct Replacement, No Fuss: This OE replacement starter 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 seamless...
  • Perfect Compatibility: Compatibility is key. Make sure to check our product specifications (in image gallery) to confirm that this OE replacement starter relay matches your vehicle's requirements. Get the perfect fit and optimal performance every time...
No. 3
Starter Relay Compatible With Plymouth Road Runner Manual Transmission 1968 1969 1970 PC-855671
  • Includes 1 (One) Starter Relay
  • Fits list of vehicles in image gallery fitment chart
  • Exceptional Quality and Performance: This OE replacement starter 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 your...
  • Direct Replacement, No Fuss: This OE replacement starter 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 seamless...
  • Perfect Compatibility: Compatibility is key. Make sure to check our product specifications (in image gallery) to confirm that this OE replacement starter relay matches your vehicle's requirements. Get the perfect fit and optimal performance every time...
SaleNo. 4
4PCS 5 Pin Relays, 12V 30A Automotive Starter Relay Multi-Purpose Heavy Duty Standard Relay Kit, Universal...
  • 【High-Quality Material】: The black shell is made of nylon with an insulating effect. The pin is made of brass, resistant to cold and heat. Rugged, unbreakable and corrosion resistant, they will support you for a long time and are suitable for...
  • 【5-Pin Relay】:The 5-pin design is particularly useful in all parts of the automotive electrical system. They can be used as normally open or closed relays.12V relays are designed with silver alloy pins for improved contact stability and sensitivity...
  • 【Package Included】:The package includes four 12V 30A 5-pin relays, measuring approximately 1.41 x 0.94 x 0.63 inches / 3.6 x 2.4 x 1.6 cm. Sufficient quantity to meet your daily use and replacement needs.
  • 【Wide Application】:Multi-purpose automotive starter relays can be applied to taillights, engine compartments, electric cooling fans, electric water pumps, fuel pumps, wiper handle solenoids, blower motors, trunk solenoids, and other devices.
  • 【Simple Operation】:The motor relay is easy to use for normal automobile applications. Simply connect the relay to the wire for convenient replacement and proper component function.
No. 5
4PCS 4 Pin Relays, 12V 30A Automotive Starter Relay Multi-Purpose Heavy Duty Standard Relay Kit, Universal...
  • 【High-Quality Material】: The black shell is made of nylon with an insulating effect. The pin is made of brass, resistant to cold and heat. Rugged, unbreakable and corrosion resistant, they will support you for a long time and are suitable for...
  • 【4-Pin Relay】:The 4-pin design is particularly useful in all parts of the automotive electrical system. They can be used as normally open or closed relays.12V relays are designed with silver alloy pins for improved contact stability and sensitivity...
  • 【Package Included】:The package includes four 12V 30A 4-pin relays, measuring approximately 1.41 x 0.94 x 0.63 inches / 3.6 x 2.4 x 1.6 cm. Sufficient quantity to meet your daily use and replacement needs.
  • 【Wide Application】:Multi-purpose automotive starter relays can be applied to taillights, engine compartments, electric cooling fans, electric water pumps, fuel pumps, wiper handle solenoids, blower motors, trunk solenoids, and other devices.
  • 【Simple Operation】:The motor relay is easy to use for normal automobile applications. Simply connect the relay to the wire for convenient replacement and proper component function.
No. 6
Replacement Transfer Case Relay for 2001-2005, 2007 Ford Explorer, Explorer Sport Trac
  • 【❗Fitment Details❗:】Transfer Case Relay | Shift Control Solenoid
  • ✅【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
SaleNo. 7
UINIEBOOM Transmission O-Ringed End Plug Kit, Transmission 3-4 Relay End Plug Kit for 4L60-E, 4L65-E, 4L70-E...
  • 【Transmission Info】4L60E: End Plug Kit, 3-4 Relay O-Ringed 1993 - 2018; 4L65E:End Plug Kit, 3-4 Relay O-Ringed 2001 - 2018; 4L70E: End Plug Kit, 3-4 Relay O-Ringed 2001 - 2018.
  • 【O-Ringed End Plug Kit】The hammering affect of the 3-4 relay and/or 3-4 shift valves can cause the soft aluminum end plugs to wear, resulting in loss of 4th signal and/or D3 oil. We offer solutions: Replace the worn OE end plugs with the these...
  • 【Feature】O-rings on the end plugs provide a positive seal; Restores hydraulic integrity at the end plug.
  • 【Note】Each unit requires 2 end plugs and O-rings.
  • 【Quality Service】Package Included: 1*O-Ringed End Plug Kit. If you encounter any problems in the process of using the product, you can contact us at the first time, and we will deal with it for you in time.
No. 8
EPLZON 5 Pin 12V 30A SPDT Relay High Performance Multi-Purpose Waterproof Stable Relay for Auto Universal...
  • Materials:The black shell is made of nylon material, which is electrical insulation,Internal use of pure copper coil, conductive performance is strong, low loss rate,greater current carrying capacity
  • Size:24.5*22*14 mm/0.98*0.87*0.55 in;Contact Rating: NO: DC 12V 40A , NC : DC 12V 30A
  • Pin Specifications: 30-High power feed,85-Relay coil ground,86-relay coil feed(trigger wire),87-high power output(normally open contact),87a-high power output(normally closed contact)
  • Function: This relay will eliminate a high voltage drop in the wire, so it allows your components to work properly.
  • Application:Applied to car tail light, engine compartment, electric cooling fans, electric water pumps, electric fuel pumps, shaved door handles solenoids,door wiper trunk solenoids and more equipment.
No. 9
Transmission Control Relay Compatible With Hyundai Santa Fe 2001 2002 2003 2004 2005 2006 PC-862266
  • Includes 1 (One) Transmission Control Relay
  • Fits list of vehicles in image gallery fitment chart
  • Exceptional Quality and Performance: This OE replacement transmission control 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...
  • Direct Replacement, No Fuss: This OE replacement transmission control 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...
  • Perfect Compatibility: Compatibility is key. Make sure to check our product specifications (in image gallery) to confirm that this OE replacement transmission control relay matches your vehicle's requirements. Get the perfect fit and optimal performance...
No. 10
36860-2A800 12VDC 70A 4Pins Automotive Relay
  • Automotive Relay: The 36860-2A800 is a high-performance relay designed specifically for automotive applications, boasting reliability and stability.
  • 12VDC Voltage: Operating on a 12VDC design, it is suitable for a variety of automotive systems, ensuring efficient power transmission.
  • 70A Rated Current: With a 70A rated current, it can handle larger power loads, meeting high-power demands.
  • 4-Pin Structure: Featuring a simple 4-pin design, it provides a convenient electrical connection solution, facilitating installation and maintenance.
  • Versatile Applications: Beyond conventional automotive uses, the 36860-2A800 is suitable for a wide range of fields, showcasing its broad applicability.

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Last update on 2026-04-17 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Automotive Replacement Transmission Relays

Vehicle Compatibility

  • Crucial First Step: Always verify that the replacement relay is compatible with your vehicle's make, model, and year. Even within the same manufacturer, different models can use distinct relay types.
  • Consult Your Manual: Your car's owner's manual or a reputable online parts catalog will list the exact part numbers or specifications required.

Relay Quality and Brand Reputation

  • OEM vs. Aftermarket: Original Equipment Manufacturer (OEM) parts are designed specifically for your vehicle. High-quality aftermarket options can also be reliable, but research the brand's reputation for durability and performance.
  • Material and Construction: Look for relays made with durable materials and robust internal components to ensure longevity and consistent operation under various driving conditions.

Electrical Specifications

  • Voltage and Amperage: Ensure the replacement relay matches the original's voltage and amperage ratings to prevent electrical system damage.
  • Pin Configuration: The number and arrangement of pins must precisely match the original relay's socket for a proper connection.

Frequently Asked Questions

What are the symptoms of a bad transmission relay?
Common signs include difficulty shifting gears, the transmission not engaging, sudden loss of power while driving, or warning lights on the dashboard related to the transmission. In severe cases, the vehicle may not move at all.
Can I drive my car with a faulty transmission relay?
It is generally not recommended to drive with a known faulty transmission relay. Continued operation can potentially cause more significant damage to the transmission system and lead to more costly repairs.
How often should a transmission relay be replaced?
Transmission relays are typically not a routine maintenance item and are replaced only when they fail. Their lifespan depends on vehicle usage, electrical system health, and the quality of the component itself.
Is it difficult to replace a transmission relay?
Replacing a transmission relay can range from simple to moderately difficult, depending on its location in the vehicle's fuse box or engine compartment. Some are easily accessible, while others may require removing other components.