Major Appliances

The Best Automotive Replacement Refrigerator Relays

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Automotive replacement refrigerator relays are crucial components for maintaining the operational integrity of mini-fridges, coolers, and other compact refrigeration units often found in vehicles or small spaces. These relays facilitate the compressor's startup, ensuring efficient cooling and preventing damage. Products were evaluated based on compatibility, pin configuration, resistance specifications, included components, user reports, and feature analysis.

Best Overall
QP2-4.7 Starter Relay, 1 Pin Refrigerator Starter Relay with 6750C-0005P Refrigerator Overload Protector Relay Replacement Parts for LG Mini Fridges Coolers Refrigerator Compressor

QP2-4.7 Starter Relay, 1 Pin Refrigerator Starter Relay with 6750C-0005P Refrigerator Overload Protector Relay Replacement Parts for LG Mini Fridges Coolers Refrigerator Compressor

$6.99

This kit provides both a 1-pin 4.7 Ohm PTC starter relay and an overload protector, offering a comprehensive solution for common mini-fridge and LG compressor repairs.

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Best Budget

Offering two 3-pin 22 Ohm relays, this package provides good value for users needing replacements for compatible car refrigerators or beverage coolers, potentially covering multiple units or future needs.

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Best Premium
BMIROAMDFE Refrigerator Compressor Relay and Overload Kit 5 Sets,Refrigerator Starters QP2-4R7 4.7 Ohm 1 Pin Refrigerator PTC Starter Relays and 6750C-0005P Freezer Overload Protectors

BMIROAMDFE Refrigerator Compressor Relay and Overload Kit 5 Sets,Refrigerator Starters QP2-4R7 4.7 Ohm 1 Pin Refrigerator PTC Starter Relays and 6750C-0005P Freezer Overload Protectors

$11.99

This extensive kit includes five sets of 4.7 Ohm 1-pin relays and overload protectors, suitable for extensive repairs or maintaining multiple compatible refrigeration units.

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No. 1
UPGRADED W10613606 Refrigerator Compressor Start Relay and Capacitor by Seentech - Compatible with Whirlpool...
  • IMPORTANT COMPATIBILITY WARNING: Same part number does NOT guarantee compatibility with every compressor or refrigerator model. Please verify your refrigerator model number and compressor compatibility before purchasing.
  • IMPORTANT NOTE: Please double-check your model number before placing your order. If you’re unsure, we’re happy to help confirm compatibility for you. Should you have any questions about your purchase, we’re always here to support you.
  • MODEL NUMBER: W10613606 Refrigerator Compressor Start Relay and Capacitor. Replaces part numbers: W10416065, PS8746522, 67003186, PS8746522, AP5787784, EAP...
  • PREMIUM QUALITY: The replacement part is made from durable high quality material and well-tested by the manufacturer. It is easy to install, saves time and effort, and can save you a large amount of maintenance costs.
No. 2
QP2-4.7 PTC 4.7 Ohms Starter Relay, 2 Pin Refrigerator Starter Relay and Refrigerator Overload Protector...
  • Package Includes: You will receive 1x 4.7 Ohm 2-pin PTC start relay and 1x refrigerator overload protector. This reliable set is designed to enhance the efficiency of your cooling appliances
  • Compatible Parts: This relay and overload protector set replaces part numbers including AP4439459, 1357963, AH3529540, EA3529540, and PS3529540. Ensure compatibility with your unit for optimal performance and peace of mind
  • Versatile Application: Widely suitable for numerous mini fridges, compact refrigerators, beverage and wine coolers, deep freezers, and chest freezers. Perfect for restoring cooling functions across a variety of appliances
  • Easy Installation: Designed for easy installation, this direct replacement allows for quick repairs. Restore the cool air in your refrigerator without hassle, getting your appliances back up and running swiftly
No. 3
Esttlamer 1394121 HVAC Systems Relay Compatible with Leer Freezers and Coolers, Suitable for Catering...
  • Compatible Model: This relay is compatible with Leer commercial freezers, refrigerators, and similar units, and is also well-suited for use in catering equipment, convenience store coolers, and other systems requiring voltage relays
  • Replacement Part Number: Replace 1394121 040-0166-37. This potential relay controls the start and stop of equipment such as compressors by detecting voltage changes in the circuit, ensuring smooth compressor startup and avoiding overload
  • Core Parameters: This relay is rated for 400V and has a current capacity of 35A, enabling precise switching of high-voltage components in HVAC systems with rapid response to avoid frequent cycling
  • Reliable Materials: This 1394121 replacement part features a rugged housing and metal connections, making it suitable for extreme conditions such as food blast freezers. It ensures the system maintains stable working performance
No. 4
1Pcs QP-02-4.7 3Pin 4.7 Ohm Refrigerator Start Relay Coolers Compressor Starter with 1Pcs 1/2HP Refrigerator...
  • ✅Package Content: 1 x Starter Relays 4.7 ohm 3Pin + 1 x Refrigerator Overload Protector 1/2HP.
  • ✅Please note that this product is only compatible with QP-02-4.7 relay with 3 terminals. Not compatible with relays of other pin numbers. This kit is not suitable for all refrigerator compressors, only applicable to 110V compressors.
  • ✅【Note】The maximum current that a 4.7 ohm relay can withstand is 12A. otherwise it will burn.
  • ✅【Note】Please carefully compare the pictures we provide with your old parts. Please check if your old relay is 3 pins. To make sure it fits your refrigerator. please consider before buying.
No. 5
QP2-4R7 4.7 Ohm 3-Pin PTC Starter/Start Relay and Overload Kit Compatible with Mini Fridges Beverage & Wine...
  • Compressor PTC Starter/Start Relay Refrigerator Overload Protector.
  • Product Name: QP2-4.7 Start Relay; Material: Plastic; Color: Black; Resistance : 4.7 Ohm; Pin Quantity: 3; Easy to install; PLEASE NOTE: the item is compatible ONLY to QP2-4R7 three-terminal relay.
  • Replaces P/N: QP2-4R7 / QP2-4.7 / QP2-4.7G12 / WS-EP14F / 6R8MD3 / AP4565041 / 1206682 / 3990100070.
  • OVERLOAD: 1/12HP-1/2HP 110V 60Hz; Compatible with LG #6750C-0004R 6750C-0005P 268273 1357963 AH3529540 PS3529535 PS3529540 AP4439459 AP4651578 EA3529540 EAP3529535 LP21704 LP49259 265RHBYY 314TFBYY 1265RFBYY.
No. 6
laffoonparts 1394121 040-0166-37 Relay, Replacement for Leer 35A Potential Relay for Refrigeration, HVAC...
  • Fitment: Replacement for Leer 35A Potential Relay for Refrigeration, HVAC Systems Replacement for Freezers and Coolers
  • Replace Part Number: 040-0166-37, 1394121
  • High Voltage and Current Capacity: Rated at 400V and 35A, this relay handles demanding refrigeration applications with ease, making it ideal for commercial freezers and coolers that require robust performance
  • Enhanced Safety: This relay includes built-in safety mechanisms to prevent overloads and short circuits, ensuring safe operation in demanding refrigeration environments and protecting your equipment
No. 7
Uryazm WR08X10112 Appliances Refrigerator Start Relay
  • Uryazm Wr08x10112 Refrigerator Combo Device Tsd 2 Is Crafted To Fit A Wide Range Of Refrigerator Models And Deliver Stable And Consistent Performance
  • This Replacement Part Is Fully Compatible With Wr08x21100 AP5986440, 4589654, PS11721884 Providing A Reliable Matching Option For Your Refrigerator Maintenance Needs
  • The Uryazm Wr08x10112 Combo Device Integrates Essential Functions In One Compact Unit Making It A Convenient Solution For Quick Refrigerator Repairs
  • Made With Durable Materials This Refrigerator Combo Device Tsd 2 Can Support Long Term Operation And Adapt To Regular Refrigerator Working Conditions

Last update on 2026-10-17 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Automotive Replacement Refrigerator Relays

Pin Configuration and Resistance Matching

When selecting an automotive replacement refrigerator relay, accurately matching the pin configuration and resistance is paramount. Compressor start relays typically come in various pin counts, most commonly 1-pin or 3-pin, and with specific Ohm resistance values, such as 4.7 Ohm or 22 Ohm. For instance, products like the Gosknor QP2-4.7 relay (ASIN: B0DPLTNMRF) and the BestParts QP2-4.7 relay (ASIN: B0BML88X7C) are designed for 1-pin, 4.7 Ohm systems, which are prevalent in many mini-fridges and LG compressors. In contrast, the Aopin 3-pin 22 Ohm relay (ASIN: B08XYVXDY3) caters to different compressor specifications. Installing a relay with incorrect pin numbers or resistance can prevent the compressor from starting or, worse, cause damage to the unit. Always verify the specifications of your existing relay before purchasing.

Compatibility: Universal vs. Brand-Specific

The range of compatibility is another critical factor. Some relays are designed for broad application across various mini-fridges, wine centers, and beverage coolers, as seen with the Gosknor and BMIROAMDFE (ASIN: B08SHC1CWF) offerings, which claim wide compatibility with 4.7 Ohm 1-pin systems. However, other relays are tailored for specific major appliance brands. The Seentech W10613606 relay (ASIN: B0BHH4MCYW), for example, is explicitly compatible with Whirlpool and Kenmore refrigerators, replacing specific part numbers like W10416065. While a generic relay might appear to fit physically, its electrical characteristics may not align with the compressor’s requirements, leading to operational issues. Always cross-reference your appliance’s model number and the required part number with the replacement product's specifications.

Inclusion of Overload Protection

Many compressor issues stem from both the starter relay and the overload protector. Some replacement products, such as the Gosknor QP2-4.7 Starter Relay kit and the BMIROAMDFE Refrigerator Compressor Relay and Overload Kit, wisely bundle both components. The overload protector is a safety device that prevents the compressor from overheating. While a standalone relay like the BestParts QP2-4.7 (ASIN: B0BML88X7C) or the Aopin 3-Pin 22 Ohm relay might fix a specific starter issue, users often report that replacing both parts simultaneously offers a more reliable and lasting repair, especially since both components are subject to wear and tear from electrical fluctuations and heat.

Material Quality and Durability

The longevity of a replacement relay is influenced by its construction materials. Most relays, including those from Gosknor and Aopin, typically feature a plastic housing. While plastic is cost-effective, the quality of the internal PTC (Positive Temperature Coefficient) thermistor and the overall build impact performance. Users generally expect these components to withstand the heat and electrical demands of continuous operation. In kits like the BMIROAMDFE set, the overload protector is often made of stainless steel, which offers better heat dissipation and durability compared to plastic-housed protectors. Assessing the material descriptions can provide insight into the expected lifespan and reliability of the replacement part.

Pros & Cons

QP2-4.7 Starter Relay, 1 Pin Refrigerator Starter Relay with 6750C-0005P Refrigerator Overload Protector Relay Replacement Parts for LG Mini Fridges Coolers Refrigerator Compressor

Pros

  • Includes both PTC starter relay and refrigerator overload protector, offering a complete repair solution.
  • Designed for QP2 4.7 ohm 1-pin systems, suitable for many mini-fridges and LG compressors.
  • Constructed from reliable plastic material, indicating standard durability for its application.

Cons

  • Compatibility is specific to 1-pin 4.7 ohm systems, not universal for all compressor types.
  • Lacks specific brand compatibility claims beyond 'most brands that use 1 pin QP2 4.7 ohm resistor'.

W10613606 Refrigerator Compressor Start Relay and Capacitor by Seentech - Compatible with Whirlpool, Kenmore, fridges. Replace Part Number: W10416065, PS8746522, 67003186 (2 Pack)

Pros

  • Specifically designed for Whirlpool and Kenmore refrigerators, ensuring precise compatibility.
  • Replaces multiple part numbers (W10416065, PS8746522, 67003186), simplifying part identification.
  • Includes both the compressor start relay and capacitor, addressing common failure points simultaneously.

Cons

  • Limited to specific Whirlpool and Kenmore models, not suitable for other brands or mini-fridges.
  • Requires careful model number verification due to its specialized compatibility.

B08XYVXDY3

Pros

  • Provides two 3-pin 22 Ohm relays, offering good value for multiple repairs or backup.
  • Suitable for a range of appliances including car refrigerators, portable freezers, and beverage coolers.
  • The 3-pin configuration accommodates specific compressor types not covered by 1-pin relays.

Cons

  • Only includes the starter relay, requiring separate purchase of an overload protector if needed.
  • The 22 Ohm resistance and 3-pin configuration are not universally compatible with all compressors.

Common Mistakes to Avoid

Mismatched Pin Configuration

A frequent error involves selecting a relay with the incorrect number of pins. For instance, products like the Gosknor QP2-4.7 (ASIN: B0DPLTNMRF) are 1-pin, while the Aopin relay (ASIN: B08XYVXDY3) is 3-pin. Attempting to install a 1-pin relay where a 3-pin is required, or vice-versa, will result in the compressor failing to start or connecting incorrectly. Always visually inspect your existing relay's pin count and ensure the replacement matches.

Incorrect Ohm Resistance Value

The resistance (Ohm) rating of the PTC starter relay is critical for proper compressor operation. Many mini-fridges require a 4.7 Ohm relay, as offered by BestParts (ASIN: B0BML88X7C) and BMIROAMDFE (ASIN: B08SHC1CWF). However, other compressors, such as those compatible with the Aopin relay, demand a 22 Ohm resistance. Using a relay with an incorrect Ohm value can lead to the compressor not starting, starting intermittently, or even sustaining electrical damage over time.

Neglecting the Overload Protector

Some replacement products, like the Aopin relay, are standalone starter relays. Others, such as the Gosknor and BMIROAMDFE kits, include a corresponding overload protector. A common mistake is only replacing the relay when the overload protector is also faulty or near the end of its life. Users often find that the overload protector, especially the 6750C-0005P type mentioned with Gosknor, fails alongside the relay due to similar stress factors. Replacing both components simultaneously often ensures a more reliable and complete repair.

Overlooking Brand-Specific Compatibility

While many relays claim broad compatibility for mini-fridges, some are designed for specific major appliance brands. The Seentech W10613606 relay (ASIN: B0BHH4MCYW), for instance, is explicitly for Whirlpool and Kenmore models. Assuming a generic 4.7 Ohm 1-pin relay will work for a Whirlpool refrigerator requiring the W10613606 part number is a significant oversight. Always cross-reference the appliance's specific model and part numbers to avoid compatibility issues.

Frequently Asked Questions

What is the primary function of a PTC starter relay in a refrigerator compressor?
The PTC (Positive Temperature Coefficient) starter relay provides a temporary boost of current to the compressor's start winding, helping it overcome initial inertia. Once the compressor reaches operating speed, the PTC thermistor heats up, increasing its resistance and effectively disconnecting the start winding from the circuit.
Why are there different pin configurations, such as 1-pin and 3-pin, for these relays?
Different compressor designs and wiring schemes necessitate varying pin configurations. For example, the Gosknor QP2-4.7 (ASIN: B0DPLTNMRF) is a 1-pin relay, common in many compact units, while the Aopin relay (ASIN: B08XYVXDY3) is a 3-pin design, accommodating compressors with different electrical connections for their start and run windings.
How does the Ohm resistance value, like 4.7 Ohm or 22 Ohm, affect a compressor's starting mechanism?
The Ohm resistance value directly correlates with the electrical properties required by the compressor's start winding. A 4.7 Ohm relay, such as those from BestParts (ASIN: B0BML88X7C), is designed for compressors needing that specific resistance to achieve proper starting current, while a 22 Ohm relay (like Aopin's) is for compressors with different electrical specifications. Mismatching this value can prevent the compressor from starting or cause damage.
Is it always necessary to replace the overload protector along with the starter relay?
While not always strictly necessary, it is often recommended. Both the starter relay and the overload protector, like the 6750C-0005P type included with Gosknor (ASIN: B0DPLTNMRF) and BMIROAMDFE (ASIN: B08SHC1CWF) kits, are subject to similar stress and wear. Replacing both ensures a more reliable repair and often prevents a repeat failure of a related component shortly after the initial fix.
Can automotive replacement refrigerator relays be used in standard household refrigerators?
Typically, 'automotive replacement refrigerator relays' are specifically designed for smaller units like mini-fridges, beverage coolers, and car refrigerators. While the underlying principle is similar, household refrigerators often use relays with different pin configurations, resistance values, and power handling capabilities, such as those from Seentech (ASIN: B0BHH4MCYW) for specific Whirlpool/Kenmore models. It is crucial to match the relay's specifications to the exact appliance it is intended for.

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