Best Master Relays. Reviews September, 2020

Lisle 69300 Master Relay Test Jump Set

Search only Lisle brand name
Lisle 69300 Master Relay Test Jump Set

Current price: 144.63 USD

Saving: $12.54 (8%)


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Height: 1.5 Inches

Length: 4 Inches

Width: 2.3 Inches

Weight: 2.13 Pounds

  • Relay Puller Pliers easily remove electrical relays; weorks without piercing wires
  • Also allows testing of relay configurations not covered by eight Relay Test Jumpers, like Volkswagen, BMW and other European vehicles
  • 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
  • Includes Test Lead Kit for easily and securely connecting Relay Test Jumpers to a multimeter
  • Includes 8 Jumpers to fit most popular relays

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IPA Tools 9038A Relay Bypass Switch with Amp Loop, Black

Search only IPA Tools brand name
IPA Tools 9038A Relay Bypass Switch with Amp Loop, Black

Current price: 66.89 USD


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Height: 1 Inches

Length: 7 Inches

Width: 7 Inches

Weight: 0.25 Pounds

  • Relay Puller Pliers easily remove electrical relays; weorks without piercing wires
  • Also allows testing of relay configurations not covered by eight Relay Test Jumpers, like Volkswagen, BMW and other European vehicles
  • 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
  • Includes Test Lead Kit for easily and securely connecting Relay Test Jumpers to a multimeter
  • Includes 8 Jumpers to fit most popular relays
  • Operating range: Up to 20 amp continuous, 30 amp surge (12V); covers most makes and models
  • Use in conjunction with clamp-on Amp Probes and Lab Scopes
  • Simplifies fuel injection testing
  • Run all automotive, 12V DC motors with a push of a switch
  • Controls relay circuit independent of “key on” systems

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Electronic Specialties 193 Black 2.5" x 5" 12/24V Diagnostic Relay Buddy Pro Test Kit

Search only Electronic Specialties brand name
Electronic Specialties 193 Black 2.5

Current price: 116.26 USD

Saving: $5.87 (5%)


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Height: 1.574803148 Inches

Length: 3.93700787 Inches

Width: 2.755905509 Inches

Weight: 1 Pounds

Warranty: 1 year

  • Relay Puller Pliers easily remove electrical relays; weorks without piercing wires
  • Also allows testing of relay configurations not covered by eight Relay Test Jumpers, like Volkswagen, BMW and other European vehicles
  • 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
  • Includes Test Lead Kit for easily and securely connecting Relay Test Jumpers to a multimeter
  • Includes 8 Jumpers to fit most popular relays
  • Operating range: Up to 20 amp continuous, 30 amp surge (12V); covers most makes and models
  • Use in conjunction with clamp-on Amp Probes and Lab Scopes
  • Simplifies fuel injection testing
  • Run all automotive, 12V DC motors with a push of a switch
  • Controls relay circuit independent of “key on” systems
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Quick off-the-car relay tester - checks relay coil & switch contacts
  • #193 Kit Includes 5 Relay Adapters and blow mold case
  • 3 diagnostic trouble codes help define the cause of the bad relay
  • Tests 5 different relays, both 12V and 24V
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Checks relay coil & switch contacts
  • Quick off-the-car relay tester
  • Kit Includes 5 Relay Adapters and blow mold case
  • Tests 5 different relays, both 12V and 24V and 3 diagnostic trouble codes help define the cause of the bad relay

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IPA Diagnostic Scan Tool, Plastic, 6 Pc

Search only IPA brand name
IPA Diagnostic Scan Tool, Plastic, 6 Pc

Current price: 46.9 USD

Saving: $2.61 (5%)


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Height: 1 Inches

Length: 5.75 Inches

Width: 3.75 Inches

Weight: 0.02 Pounds

Warranty: 1 year manufacturer

  • Relay Puller Pliers easily remove electrical relays; weorks without piercing wires
  • Also allows testing of relay configurations not covered by eight Relay Test Jumpers, like Volkswagen, BMW and other European vehicles
  • 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
  • Includes Test Lead Kit for easily and securely connecting Relay Test Jumpers to a multimeter
  • Includes 8 Jumpers to fit most popular relays
  • Operating range: Up to 20 amp continuous, 30 amp surge (12V); covers most makes and models
  • Use in conjunction with clamp-on Amp Probes and Lab Scopes
  • Simplifies fuel injection testing
  • Run all automotive, 12V DC motors with a push of a switch
  • Controls relay circuit independent of “key on” systems
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Quick off-the-car relay tester - checks relay coil & switch contacts
  • #193 Kit Includes 5 Relay Adapters and blow mold case
  • 3 diagnostic trouble codes help define the cause of the bad relay
  • Tests 5 different relays, both 12V and 24V
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Checks relay coil & switch contacts
  • Quick off-the-car relay tester
  • Kit Includes 5 Relay Adapters and blow mold case
  • Tests 5 different relays, both 12V and 24V and 3 diagnostic trouble codes help define the cause of the bad relay
  • Manufacturer: IPA
  • Country of manufacture: China
  • Auto & Truck Maintenance

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Electronic Specialties 191 Relay Buddy Pro Test Kit

Search only Electronic Specialties brand name
Electronic Specialties 191 Relay Buddy Pro Test Kit

Current price: 106.96 USD

Saving: $9.04 (8%)


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Height: 1.574803148 Inches

Length: 3.93700787 Inches

Width: 2.755905509 Inches

Weight: 0.881849048 Pounds

Warranty: 1 year

  • Relay Puller Pliers easily remove electrical relays; weorks without piercing wires
  • Also allows testing of relay configurations not covered by eight Relay Test Jumpers, like Volkswagen, BMW and other European vehicles
  • 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
  • Includes Test Lead Kit for easily and securely connecting Relay Test Jumpers to a multimeter
  • Includes 8 Jumpers to fit most popular relays
  • Operating range: Up to 20 amp continuous, 30 amp surge (12V); covers most makes and models
  • Use in conjunction with clamp-on Amp Probes and Lab Scopes
  • Simplifies fuel injection testing
  • Run all automotive, 12V DC motors with a push of a switch
  • Controls relay circuit independent of “key on” systems
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Quick off-the-car relay tester - checks relay coil & switch contacts
  • #193 Kit Includes 5 Relay Adapters and blow mold case
  • 3 diagnostic trouble codes help define the cause of the bad relay
  • Tests 5 different relays, both 12V and 24V
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Checks relay coil & switch contacts
  • Quick off-the-car relay tester
  • Kit Includes 5 Relay Adapters and blow mold case
  • Tests 5 different relays, both 12V and 24V and 3 diagnostic trouble codes help define the cause of the bad relay
  • Manufacturer: IPA
  • Country of manufacture: China
  • Auto & Truck Maintenance
  • Settable to 4 and 5-pin relay and uses vehicle's 12 volts battery for power
  • 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
  • With the included adapters, Relay Buddy now tests 5 different relay types and also tests shielded relays
  • Relay Buddy is a quick go/no go tester for the most common automotive relays
  • Kit includes Relay Buddy tester, 5 new relay adapters and blow mold case

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Original Engine Management JR50 Main Relay

Search only Original Engine Management brand name
Original Engine Management JR50 Main Relay

Current price: 42.98 USD


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Height: 4.29 Inches

Length: 3.68 Inches

Width: 2.26 Inches

  • Relay Puller Pliers easily remove electrical relays; weorks without piercing wires
  • Also allows testing of relay configurations not covered by eight Relay Test Jumpers, like Volkswagen, BMW and other European vehicles
  • 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
  • Includes Test Lead Kit for easily and securely connecting Relay Test Jumpers to a multimeter
  • Includes 8 Jumpers to fit most popular relays
  • Operating range: Up to 20 amp continuous, 30 amp surge (12V); covers most makes and models
  • Use in conjunction with clamp-on Amp Probes and Lab Scopes
  • Simplifies fuel injection testing
  • Run all automotive, 12V DC motors with a push of a switch
  • Controls relay circuit independent of “key on” systems
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Quick off-the-car relay tester - checks relay coil & switch contacts
  • #193 Kit Includes 5 Relay Adapters and blow mold case
  • 3 diagnostic trouble codes help define the cause of the bad relay
  • Tests 5 different relays, both 12V and 24V
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Checks relay coil & switch contacts
  • Quick off-the-car relay tester
  • Kit Includes 5 Relay Adapters and blow mold case
  • Tests 5 different relays, both 12V and 24V and 3 diagnostic trouble codes help define the cause of the bad relay
  • Manufacturer: IPA
  • Country of manufacture: China
  • Auto & Truck Maintenance
  • Settable to 4 and 5-pin relay and uses vehicle's 12 volts battery for power
  • 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
  • With the included adapters, Relay Buddy now tests 5 different relay types and also tests shielded relays
  • Relay Buddy is a quick go/no go tester for the most common automotive relays
  • Kit includes Relay Buddy tester, 5 new relay adapters and blow mold case
  • Fit type: Vehicle Specific
  • Relays are manufactured with O.E. type materials to ensure optimum performance and extended service life
  • High-quality composite housings resist harsh under-hood conditions.
  • Brass or copper contacts for ensure low contact resistance.

More Info

Standard Motor Products LR35 Relay

Search only Standard Motor Products brand name
Standard Motor Products LR35 Relay

Current price: 23.78 USD

Saving: $9.21 (28%)


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Height: 3.4 Inches

Length: 2 Inches

Width: 1.4 Inches

  • Relay Puller Pliers easily remove electrical relays; weorks without piercing wires
  • Also allows testing of relay configurations not covered by eight Relay Test Jumpers, like Volkswagen, BMW and other European vehicles
  • 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
  • Includes Test Lead Kit for easily and securely connecting Relay Test Jumpers to a multimeter
  • Includes 8 Jumpers to fit most popular relays
  • Operating range: Up to 20 amp continuous, 30 amp surge (12V); covers most makes and models
  • Use in conjunction with clamp-on Amp Probes and Lab Scopes
  • Simplifies fuel injection testing
  • Run all automotive, 12V DC motors with a push of a switch
  • Controls relay circuit independent of “key on” systems
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Quick off-the-car relay tester - checks relay coil & switch contacts
  • #193 Kit Includes 5 Relay Adapters and blow mold case
  • 3 diagnostic trouble codes help define the cause of the bad relay
  • Tests 5 different relays, both 12V and 24V
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Checks relay coil & switch contacts
  • Quick off-the-car relay tester
  • Kit Includes 5 Relay Adapters and blow mold case
  • Tests 5 different relays, both 12V and 24V and 3 diagnostic trouble codes help define the cause of the bad relay
  • Manufacturer: IPA
  • Country of manufacture: China
  • Auto & Truck Maintenance
  • Settable to 4 and 5-pin relay and uses vehicle's 12 volts battery for power
  • 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
  • With the included adapters, Relay Buddy now tests 5 different relay types and also tests shielded relays
  • Relay Buddy is a quick go/no go tester for the most common automotive relays
  • Kit includes Relay Buddy tester, 5 new relay adapters and blow mold case
  • Fit type: Vehicle Specific
  • Relays are manufactured with O.E. type materials to ensure optimum performance and extended service life
  • High-quality composite housings resist harsh under-hood conditions.
  • Brass or copper contacts for ensure low contact resistance.
  • Standard Relay (LR35)

More Info

Electronic Specialties 192 Black 2.5" x 5" 12/24V Diagnostic Relay Buddy

Search only Electronic Specialties brand name
Electronic Specialties 192 Black 2.5

Current price: 57.35 USD

Saving: $4.61 (7%)


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Height: 5 Inches

Length: 2.5 Inches

Width: 1.5 Inches

Weight: 0.75 Pounds

Warranty: 1 year

  • Relay Puller Pliers easily remove electrical relays; weorks without piercing wires
  • Also allows testing of relay configurations not covered by eight Relay Test Jumpers, like Volkswagen, BMW and other European vehicles
  • 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
  • Includes Test Lead Kit for easily and securely connecting Relay Test Jumpers to a multimeter
  • Includes 8 Jumpers to fit most popular relays
  • Operating range: Up to 20 amp continuous, 30 amp surge (12V); covers most makes and models
  • Use in conjunction with clamp-on Amp Probes and Lab Scopes
  • Simplifies fuel injection testing
  • Run all automotive, 12V DC motors with a push of a switch
  • Controls relay circuit independent of “key on” systems
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Quick off-the-car relay tester - checks relay coil & switch contacts
  • #193 Kit Includes 5 Relay Adapters and blow mold case
  • 3 diagnostic trouble codes help define the cause of the bad relay
  • Tests 5 different relays, both 12V and 24V
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Checks relay coil & switch contacts
  • Quick off-the-car relay tester
  • Kit Includes 5 Relay Adapters and blow mold case
  • Tests 5 different relays, both 12V and 24V and 3 diagnostic trouble codes help define the cause of the bad relay
  • Manufacturer: IPA
  • Country of manufacture: China
  • Auto & Truck Maintenance
  • Settable to 4 and 5-pin relay and uses vehicle's 12 volts battery for power
  • 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
  • With the included adapters, Relay Buddy now tests 5 different relay types and also tests shielded relays
  • Relay Buddy is a quick go/no go tester for the most common automotive relays
  • Kit includes Relay Buddy tester, 5 new relay adapters and blow mold case
  • Fit type: Vehicle Specific
  • Relays are manufactured with O.E. type materials to ensure optimum performance and extended service life
  • High-quality composite housings resist harsh under-hood conditions.
  • Brass or copper contacts for ensure low contact resistance.
  • Standard Relay (LR35)
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Checks relay coil & switch contacts
  • Quick off-the-car relay tester
  • 3 diagnostic trouble codes help define the cause of the bad relay
  • Tests both 12V and 24V relays

More Info

Innovative Products 9036 Fuel Pump Relay Bypass Kit

Search only Innovative Products brand name
Innovative Products 9036 Fuel Pump Relay Bypass Kit

Current price: 38.57 USD


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Weight: 0.14 Pounds

  • Relay Puller Pliers easily remove electrical relays; weorks without piercing wires
  • Also allows testing of relay configurations not covered by eight Relay Test Jumpers, like Volkswagen, BMW and other European vehicles
  • 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
  • Includes Test Lead Kit for easily and securely connecting Relay Test Jumpers to a multimeter
  • Includes 8 Jumpers to fit most popular relays
  • Operating range: Up to 20 amp continuous, 30 amp surge (12V); covers most makes and models
  • Use in conjunction with clamp-on Amp Probes and Lab Scopes
  • Simplifies fuel injection testing
  • Run all automotive, 12V DC motors with a push of a switch
  • Controls relay circuit independent of “key on” systems
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Quick off-the-car relay tester - checks relay coil & switch contacts
  • #193 Kit Includes 5 Relay Adapters and blow mold case
  • 3 diagnostic trouble codes help define the cause of the bad relay
  • Tests 5 different relays, both 12V and 24V
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Checks relay coil & switch contacts
  • Quick off-the-car relay tester
  • Kit Includes 5 Relay Adapters and blow mold case
  • Tests 5 different relays, both 12V and 24V and 3 diagnostic trouble codes help define the cause of the bad relay
  • Manufacturer: IPA
  • Country of manufacture: China
  • Auto & Truck Maintenance
  • Settable to 4 and 5-pin relay and uses vehicle's 12 volts battery for power
  • 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
  • With the included adapters, Relay Buddy now tests 5 different relay types and also tests shielded relays
  • Relay Buddy is a quick go/no go tester for the most common automotive relays
  • Kit includes Relay Buddy tester, 5 new relay adapters and blow mold case
  • Fit type: Vehicle Specific
  • Relays are manufactured with O.E. type materials to ensure optimum performance and extended service life
  • High-quality composite housings resist harsh under-hood conditions.
  • Brass or copper contacts for ensure low contact resistance.
  • Standard Relay (LR35)
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Checks relay coil & switch contacts
  • Quick off-the-car relay tester
  • 3 diagnostic trouble codes help define the cause of the bad relay
  • Tests both 12V and 24V relays
  • Popular for fuel pump, fan motor, starter applications, and many more
  • Provides manual override control of relay circuit
  • On/Off switch mounted into the 3 most common relay types
  • 20 ampere continuous, 30 ampere surge (12 volt)

More Info

Standard Motor Products RY446 Relay

Search only Standard Motor Products brand name
Standard Motor Products RY446 Relay

Current price: 43.98 USD

Saving: $21.01 (32%)


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Height: 5 Inches

Length: 3 Inches

Width: 2 Inches

Weight: 0.5 Pounds

  • Relay Puller Pliers easily remove electrical relays; weorks without piercing wires
  • Also allows testing of relay configurations not covered by eight Relay Test Jumpers, like Volkswagen, BMW and other European vehicles
  • 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
  • Includes Test Lead Kit for easily and securely connecting Relay Test Jumpers to a multimeter
  • Includes 8 Jumpers to fit most popular relays
  • Operating range: Up to 20 amp continuous, 30 amp surge (12V); covers most makes and models
  • Use in conjunction with clamp-on Amp Probes and Lab Scopes
  • Simplifies fuel injection testing
  • Run all automotive, 12V DC motors with a push of a switch
  • Controls relay circuit independent of “key on” systems
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Quick off-the-car relay tester - checks relay coil & switch contacts
  • #193 Kit Includes 5 Relay Adapters and blow mold case
  • 3 diagnostic trouble codes help define the cause of the bad relay
  • Tests 5 different relays, both 12V and 24V
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Checks relay coil & switch contacts
  • Quick off-the-car relay tester
  • Kit Includes 5 Relay Adapters and blow mold case
  • Tests 5 different relays, both 12V and 24V and 3 diagnostic trouble codes help define the cause of the bad relay
  • Manufacturer: IPA
  • Country of manufacture: China
  • Auto & Truck Maintenance
  • Settable to 4 and 5-pin relay and uses vehicle's 12 volts battery for power
  • 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
  • With the included adapters, Relay Buddy now tests 5 different relay types and also tests shielded relays
  • Relay Buddy is a quick go/no go tester for the most common automotive relays
  • Kit includes Relay Buddy tester, 5 new relay adapters and blow mold case
  • Fit type: Vehicle Specific
  • Relays are manufactured with O.E. type materials to ensure optimum performance and extended service life
  • High-quality composite housings resist harsh under-hood conditions.
  • Brass or copper contacts for ensure low contact resistance.
  • Standard Relay (LR35)
  • Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code
  • Checks relay coil & switch contacts
  • Quick off-the-car relay tester
  • 3 diagnostic trouble codes help define the cause of the bad relay
  • Tests both 12V and 24V relays
  • Popular for fuel pump, fan motor, starter applications, and many more
  • Provides manual override control of relay circuit
  • On/Off switch mounted into the 3 most common relay types
  • 20 ampere continuous, 30 ampere surge (12 volt)
  • Standard Relay (RY446)

More Info

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