Best Standard Motor Products Circuit Opening Relays in 2026

Daisy
Last Updated: Jul 17, 2026

At a Glance: Our Top Picks for Standard Motor Products Circuit Opening Relays

irhapsody 5 Pack 40/30 AMP 12V DC Waterproof Relay and Harness - Heavy Duty 12 AWG Tinned Copper Wires, 5-PIN SPDT Automotive Relay
#TOP1
Irhapsody 5 Pack 40/30 Amp 12V Dc Waterproof
9.8
PM SCORE
6 Pack 4-Pin 12V Bosch Style Fused Relay Switch Kit [Interlocking Harness Socket Holder] [14 AWG Hot Wires] [SPST] [30 Amp] 12 Volt Automotive relays with Fuse for Auto Cars
#TOP2
6 Pack 4-Pin 12V Bosch Style Fused Relay
9.8
PM SCORE
10 Pack Bosch Style 5-Pin 12V Relay Switch [SPDT] [30/40 Amp] 12 Volt Automotive Relays for Auto Fan Cars
#TOP3
10 Pack Bosch Style 5-Pin 12V Relay Switch
9.8
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Standard Motor Products Circuit Opening Relays of 2026

Market Overview
Standard Motor Products Circuit Opening Relays Reviewed
  • Reviews Analyzed: 20548 Items
  • PM Avg. Rating: 6.9 / 10
56 Products Evaluated
  • Highest Price: $179.77
  • Lowest Price: $4.74
  • Avg. Price: $39.38

Irhapsody 5 Pack 40/30 Amp 12V Dc Waterproof Relay And Harness - Heavy Duty 12 Awg Tinned Copper Wires, 5-Pin Spdt Automotive Relay

IRHAPSODY
IY-5PINRELAY-5
7.85 X 1.60 X 1.70 Inches
1.10 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
IRHAPSODY® Store 9.93

Features

Never go beyond its capabilities. Try to stay 10 to 15% below what the rate is for

12-volt 5-prong relay. Excellent water-repellent and dustproof ability, but not using it in water

Be careful when inserting the relay into the socket. If you force it, you will bend the female connectors

Primary leads use 12 a.w.g tinned copper wire. Coil leads use 16 a.w.g

Nominal Coil Voltage: 12 V DC; Coil Power: 1.8 W; Coil Resistance: 80 Ω; Must Operate Voltage: 6~8 V DC; Must Release Voltage: 0.6~3.6 V DC; Maximum Applied Voltage: 15.6 V DC

6 Pack 4-Pin 12V Bosch Style Fused Relay Switch Kit [Interlocking Harness Socket Holder] [14 Awg Hot Wires] [Spst] [30 Amp] 12 Volt Automotive Relays With Fuse For Auto Cars

ONLINE LED STORE
PSZACCEPS179R
6.50 X 5.62 X 2.00 Inches
0.80 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
OnlineLEDStore 9.94

Features

Built in fuse socket with included 30A blade fuse with heavy duty 14AWG wires for main contact.

Bosch style 4-Pin SPST (Single Pole Single Throw) Relay.

12VDC (14V Max) and 30A High Switching Capability.

Wire Specifications: Black - Ground (85), Red - VDC (30), White - Trigger (86), Blue - Output N/O (87).

Set includes 6 relays, 6 relay harnesses, and 6 blade fuses.

10 Pack Bosch Style 5-Pin 12V Relay Switch [Spdt] [30/40 Amp] 12 Volt Automotive Relays For Auto Fan Cars

ONLINE LED STORE
PSZACCEPS176R
5.75 X 2.75 X 1.75 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
OnlineLEDStore 9.94

Features

User Manual available for download under Product Information Details

Bosch style 5-Pin SPDT (Single Pole Double Throw) Relay

40A/30A High Switching Capability.

Pin Specifications: Ground (85), VDC (30), Trigger (86), Output N/C (87a), and Output N/O (87).

10pc Included

Lisle 69300 Master Relay Test Jump Set, One Size, Factory

LISLE
69300
4.00 X 2.30 X 1.50 Inches
3.10 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Includes 8 Jumpers to fit most popular relays

Includes Test Lead Kit for easily and securely connecting Relay Test Jumpers to a multimeter

Terminal Leads with switch, fuse and power options provide easy access to check current or voltage on many fuses and relays used on vehicles today

Also allows testing of relay configurations not covered by eight Relay Test Jumpers, like Volkswagen, BMW and other European vehicles

Relay Puller Pliers easily remove electrical relays; weorks without piercing wires

Ehdis Car Relay 4 Pin 12V 40Amp Spst Model No.: Jd2912-1H-12Vdc 40A 14Vdc, Auto Switches & Starters,Pack Of 2

EHDIS
2C05-12V
1.06 X 1.06 X 0.98 Inches
0.09 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Ehdis 9.89

Features

Heavy duty 4-prongs SPST relays, jd1912 12v 40a relay

Use optional Relay Harness, or female Crimp Connectors

High 40A coil capacity- able to handle those high current applications with ease

Package Include: 2 x 40A 4-Pin 12V Vehicle Relays

The Automotive relay is suitable for normal automobile use and simple to operate, you just need to connect the relay with the wire, no other tools needed, convenient for your use and replace, allowing your components to work properly

#TOP6

Standard Motor Products Ry-1562 Relay

STANDARD MOTOR PRODUCTS
RY-1562
4.38 X 1.94 X 7.75 Inches
0.69 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Product Type :Relay

Package Dimensions :5.105 Cm L X11.303 Cm W X19.888 Cm H

Country Of Origin :China

Package Weight :1.19Lbs

Hamolar 2 Pack 12V 40/30 Amp Car Relay Dc 5 Pin Spdt And Harness - Heavy Duty 12 Awg Copper Wires Relays Kit Bosch Style For Automotive Truck Van Motorcycle Boat

HAMOLAR
JD1914 WITH HARNESS SOCKET-2PCS
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Hamolar 9.94

Features

The 12v relay harness base contains 3*12 AWG and 2*16 AWG cables, length: 5.5 in, which have higher load-bearing capacity and more stable performance.

Function: 12VDC (14V Max) 5 Pin SPDT (Single Pole Double Throw) Relay with 40A/30A High Switching Capability.

Wire Specifications: White - Ground (85), Blue - VDC (30), Black - Trigger (86), Red - Output N/C (87a), and Yellow - Output N/O (87).

The dc car relay adopts waterproof sealing technology at the bottom and a fixed back strip on the back, which is suitable for various complicated installation environments.

Relay and harness kit made by high-grade flame retardant materials to ensure superior quality and long lifespan. 2 Years Warranty.

Fastronix 40/60A Waterproof Relay 6 Pack

FASTRONIX SOLUTIONS
900-001
0.31 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Legacy Motorsports 9.93

Features

40/60 Amp Automotive Relay with 1/4" Leads

Includes 6 Waterproof Relays with Mounting Tabs for 1/4" Fastener

Features Negative Spike Suppression

Can Be Used for Controlling Any 12V Device

Standard Bosch Style Relay

Automotive Purpose Relays 303-1Ah-C-R1-U01-12Vdc Spno 20A 12Vdc For Polaris Rzr Slingshot Ranger Sportsman Cooling Fan Relay (4 Pack)

JOINAP
301-1A-C-R1-U03
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
JOIN Auto Parts 9.85

Features

Part Number 303-1AH-C-R1-U01 12VDC

Ultra Micro ISO Automotive relay.

High Temperature withstand up to 125°C ambient

High Rating up to 20A. 12 VDC.

General purpose applications for automotive in power.

Nilight 50044R 5 Pack Waterproof 40/30 Amp Heavy Duty 12 Awg Tinned Copper Wires 5-Pin Spdt Bosch Style 12V Automotive Relay And Harness Set,2 Year Warranty

NILIGHT
50044R
7.17 X 6.34 X 1.93 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

12 V DC automotive waterproof relays (max 14 V). Note: 12 V and 14 V are coil voltages, they are not the voltage that triggers the switch

Premium quality: durable relay and harness socket with 5 wires; made from high-grade materials to ensure superior quality and long lifespan

Pre-wired Harness: Heavy duty 12/16 AWG wiring harness. Black - 16AWG Pin85, White - 16AWG Pin86, Red - 12AWG Pin30 Yellow - 12AWG Pin87a, and Blue - 12AWG Pin87

Enhanced Waterproof - The 5-Pin relays are tightly sealed with strong cap and seal ring, excellent performance of waterproof, dust proof and moisture proof, works well in any weather conditions

Package includes: 5 pack Waterproof Relay and Harness. 1x User manual. 2 Year Warranty by Nilight.

Relay Buddy Electronic Specialties 191 Pro Test Kit

RELAY BUDDY
191
3.94 X 2.76 X 1.57 Inches
0.88 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
JBTools 9.86

Features

Kit includes Relay Buddy tester, 5 new relay adapters and blow mold case

Relay Buddy is a quick go/no go tester for the most common automotive relays

With the included adapters, Relay Buddy now tests 5 different relay types and also tests shielded relays

Relay Buddy will fail the relay and light the red LED if any of the test cycle proves unsuccessful during the test session; green light if relay is good

Settable to 4 and 5-pin relay and uses vehicle's 12 volts battery for power

Ehdis 5 Pin Relay 12V 30A Spdt Multi-Purpose Relay Heavy Duty Standard Relay Kit Pack Of 2 Model Jd1914-12V-30A

EHDIS
2C08-12V
0.91 X 0.98 X 0.63 Inches
0.04 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Ehdis 9.89

Features

12V 30A 5-Prongs High-current welded connections for reliability,model JD1914-12V-30A

Standard is a global manufacturer of original equipment ignition products; complete quality control is maintained through the manufacturing process from componentry to finished product

High quality composite housings protect against harsh temperatures and severe under hood conditions

Featuring brass or copper contacts where specified for extended wear

All parts are manufactured to stringent quality requirements. Relays play a large role in the ever increasing amount of electronics in automobiles.

G8V-Rh-1C7T-R-Dc12 - Power Relay (2 Piece)

JUSHACHENGTA
793513402453
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AiMiNi 9.78

Features

Coil Voltage: 12 VDC 10A

Mounting Style: Plug In

Operating Temperature (°C): -40 to 125

Consumption: 2.3 W

Coil Resistance: 104

10 Pack 30/40 Amp Waterproof 5-Pin 12V Relay Switch (Spdt)For 12 Volt Automotive Marine Relays For Boats Auto Fan Cars

KEYHAO
12V-30/40A
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HcaIory store 3.05

Features

12V waterproof 5-Pin SPDT Relay Excellent waterproof and dustproof ability, high quality in any weather conditions

12V 5-Pin SPDT Relay Pin Specifications: Ground (85), VDC (30), Trigger (86), Output N/C (87a), and Output N/O (87).

SPDT Relay with 40A/30A High Switching Capability,it has both normally open and normally closed terminals, terminal 87A is powered when the relay is inactive and switches the power to terminal 87 when the relay is activated.

12v relays can operate with anywhere between 9v and 14v,Very suitable for 12V automotive, marine, and machine circuits.

These 12V 5-pin relays are rated to handle 30A on normally closed pin 87a and 40A on normally open pin 87.

4 Pack 8T2T-14B192-Aa Multi-Function Relay 4-Pin 8T2T14B192Aa Oem Relays Compatible For F150 F-250

JESUNK
8T2T-14B192-AA, 8T2T14B192AA
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
JESUNK 9.86

Features

1order = 4 Pieces

Special features: Relay For FUSION F150

Better Performance

Made from high-quality materials, good bending performance, melting resistance and excellent electrical conductivity

Nilight Spdt Relay Replacement 12V 5 Prong Spdt Auto Tilt Trim Relay (Pack Of 10) 40/30 Amp Electrical Power Relay Switch 5 Pin Bosch Style Relay For Automotive Cars Marine Boats,2 Years Warranty

NILIGHT
50043R
0.39 X 0.39 X 0.39 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

5 Pin SPDT (Single Pole Double Throw) Bosch Style Electrical Relay.

40A/30A High Switching Capability. These relays have a universal application and can be used in a 12 Volt DC power source, such as automotive setups, car sound systems, security systems, and various other applications.

Pin Specifications: 30V DC. Ground (85), Trigger (86), Output N/C (87a), and Output N/O (87).

Maximum Applied Voltage: 15.6 V DC; Max Operating Voltage is 27V DC; Nominal Coil Voltage: 12 V DC; Max Operating Current: 40A; Must Operate Voltage: 6~8 V DC; Must Release Voltage: 0.6~3.6 V DC; Coil Power: 1.8 W; Coil Resistance: 80 Ω; Insulation Resistance: 100MΩ

Package include: 10 pack electrical relays. Sockets are not included.

Fit Type: Universal Fit

5 Pin 12V Relay 12V 30A Relay Multi Purpose Automotive Relay Black Starter Relay Car Heavy Duty Relay For Car Motor Automotive Replacement Accessories (4 Pieces)

TALLEW
1
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Yungmaii 9.92

Features

Sufficient for using: 5 pin! 5 pin! 5 pin! you will receive 4 pieces 12V 30A 5 pin relays, the size is about 1.02 x 0.94 x 0.63 inch/ 2.6 x 2.4 x 1.6 cm, enough quantity can meet your daily use and replacement, you can share them with your friends and family who need them, these relays are 5 plug please note when ordering

Product number: The product is not suitable for all models and brands, please check the specifications carefully to confirm whether it is applicable before purchasing,The product model is JD1914-12V-30A, 12V 30A SPDT 5 Pin Relay

Aeola 2 Pack G8Va1A4Tr 4 Pin Automotive Air Conditioner, Speaker Relay Fits For Harley G8Va1A4Tr01, 68055797Aa, 68207357Aa, Dc12, G8Va-1A4T-R01, Vh28-11F24-S01, Vh2811F24S01

AEOLA
G8VA1A4TR
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aeola Components 8.46

Features

Quality Assured :Brand New Components, TOP quality starter relays, constructed of high-quality material for long lasting durability and reliability, meets or exceeds OEM standard.

Reference Part Number:G8VA1A4TR, Alternate Part #G8VA1A4TR01, 68055797AA, 68207357AA,DC12, G8VA-1A4T-R01, VH28-11F24-S01, VH2811F24S01

Compatibility:New Omron Relay For Harley,Chrysler,Polaris etc, made in Japan.

Powerful Commonly used for Excavators and Automotive A/C compressors Fan Motor, starters, headlights, horns, Ignition, Fog Lamp, Headlamp, fans, Rear Window Defroster, Blower Motor, Cargo Light, Driving Light, Fuel Pump / Circuit Opening Relay and other accessories.

Buy with Confidence:we offer 12-month warranty and 30-day money back guarantee! We are committed to providing our consumers with high quality and cost-effective products, ensuring the true worry-free shopping experience.

#TOP19

Denso 567-0045 Relay

DENSO
567-0045
0.00 X 0.00 X 0.00 Inches
0.10 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Authentic Product

Denso Auto Parts Brand

Individual Pack

Denso Auto Parts Part #567-0045

Brand new, never used.

#TOP20

15 Pcs 5 Pin Dc 12V Spdt Relay Socket Harness Base Wire Cable Relay Socket For Car Truck Automotive Motor

FABBAY
FM-220905-A
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Fuuminno 9.92

Features

Abundant to Use and Share: you will receive 15 pieces of relay sockets, enough quantity for you to use or share with others

5 Colors to Figure Wires: the 5 pin relay socket has 5 wires in 5 colors, white, red, yellow, blue and black, convenient for you to figure and organize different wires, making the relay safe

Water Resistant and Dustproof: the relay socket is water resistant and dustproof, not easy to deform or break, serving you for a long time; Don't put and use it in water

Physical Properties: our harness socket is applicable for DC 12V, the coil power is 1.8W, and the rated current is 40A, providing consistent currents for your relay while opening the switch

Various Types of Application: the wire cable relay socket is suitable for door lock, remote start circuit, automotive, flashing light, truck, motor and more, allowing you to use as you need

#TOP21

Aeola 4 Pack G8Hn-H70 G8Hn-1A4T-Rh 39792-Sda-A01 Micro Iso 4 Prong Wiper Relay | Fits Honda Accord Civic Crosstour Cr-V Pilot Odyssey Ridgeline,Acura Mdx Rdx Rl Rlx Tl Tlx Tsx Zdx

HONGYETAJA
G8HN-H70,G8HN-1A4T-RH ,39792-SDA-A01
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aeola Components 8.33

Features

Aeola Components: OEM Direct fit replacement parts built to last. All Aeola products are Genuine parts in a and are available to you at a fraction of the genuine part price. That means you get the same part as you would from your local dealership but in a Aeola for a fraction of the price. Why pay more?

OEM PART: Your original wiper relay may only work on one speed, switch intermittently, or make humming noises. If your windshield wipers have any of these symptoms, it may be time to replace your wiper relay. The Aeola Wiper Relay will function just as the original one did when you first got your vehicle.

SUPERIOR PERFORMANCE: Working wipers may not seem like a big deal to have. But when you are driving in a torrential downpour, speeding up the pace of your wipers will be extremely handy rather than staying at the same speed you last had them on. The Aeola Wiper Relays ensure the electrical components will work properly when the time comes to use them.

WHAT YOU GET: 4 Wiper Relay for vehicles. Replaces OEM part numbers: 39792-SDA-A01 G8HN-H70 39794-S0K-A01 39794-S04-014 39794-S04-004. 100% satisfaction in every replacement relay. Make sure one of these part numbers fits your vehicle.

POWERFUL COMMONLY: used for Excavators and Automotive A/C compressors Fan Motor, starters, headlights, horns, Ignition, Fog Lamp, Headlamp, fans, Rear Window Defroster, Blower Motor, Cargo Light, Driving Light, Fuel Pump / Circuit Opening Relay and other accessories.

100% SATISFACTION GUARANTEE: Every Automotive relay is covered with a 12-month replacement warranty and a 30-day money back guarantee! Not satisfied? Return it for a full refund - Aeola to Last.

Wmautopart Fuel Pump Circuit Opening Relay 19116962

WM AUTO PART
WMR109
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
WM Auto Part 9.26

Features

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

Toyota 85910-35040 Circuit Opening Relay Assembly (For Efi)

TOYOTA
85910-35040
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Direct Fit

Genuine OEM Factory Original part

Guaranteed against poor workmanship and material defects

Japan

Top 10 circuit opening relays Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Standard Motor Products 22
Standard Ign 4
Irhapsody 3
Denso 2
Ehdis 2
Fastronix Solutions 2
Hamolar 2
Joinap 2
Nilight 2
Online Led Store 2

Top 10 circuit opening relays Brands Pie Chart


We've carried out a comprehensive analysis of 20,548 reviews on circuit opening relays, using our selection criteria to identify the best options in the automotive replacement parts. Our findings reveal that most customers typically select circuit opening relays priced around $39.38, with top brands including standard motor products, toyota, wm auto part, denso, lisle, irhapsody, nilight, jesunk and ehdis and relay buddy

Our team of expert editors reviewed these high-quality items and handpicked the top 23 circuit opening relays for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive replacement parts category. These include amazon.com, wm auto part, irhapsody® store, jesunk, ehdis, jbtools, onlineledstore, legacy motorsports and aimini and autoplus auto parts .

We are dedicated to assisting our users in finding the right relays Products based on their needs, saving them considerable time when choosing which circuit opening relays to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.