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Diagnostic Tools

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SKU: 8016

Fuse Saver® Master Kit

a fuse system instruction manual is displayed on a gray case
Fuse Saver® Master Kit troubleshoots short circuits without blowing fuses! Includes 5 resetting breakers (5-30A), 10-ft fuse cord, BuzzAlert, and 6-piece adapter kit.
In Stock

$309.50

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SKU: 8005

Fuse Saver® Standard Kit

The Fuse Saver® quickly troubleshoots short circuits without blowing fuses! Includes 3 resetting breakers (10A, 15A, 20A), and a 10-ft fuse cord.
In Stock

$119.50

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SKU: 9038A

Relay Bypass Switch Kit with Amp Loop

a box that says relay bypass switch kit with amp loop
Control and test fuel pump circuits independent of key-on systems; includes six relays for most domestic, Japanese, Korean and German applications.
In Stock

$126.95

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SKU: 9038

Fuel Pump Relay Bypass Master Kit

a group of black speakers sitting next to each other on a white background
Control and test fuel pump circuits independent of key-on systems; includes six relays for most domestic, Japanese, Korean and German applications.
In Stock

$89.95

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SKU: 9037

Fuel Pump Relay Bypass Kit II

3 black on and off switch on a white background
Control and test fuel pump circuits independent of key-on systems; includes three relays for most domestic, Japanese, Korean and German applications.
In Stock

$52.95

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SKU: 9036

Fuel Pump Relay Bypass Kit

Control and test fuel pump circuits independent of key-on systems; includes three relays for most domestic, Japanese, Korean and German applications.
In Stock

$53.95

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SKU: 7884

Disc Brake System Analyzer

Uneven brake pad wear? Eliminate guesswork when troubleshooting disc brake problems.
In Stock
Lifetime Warranty

$345.00

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SKU: 7882

Whistle Alert (Rigid)

Identifies compression stroke.
In Stock
Lifetime Warranty

$30.95

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SKU: 7894

Whistle Alert (Flexible)

Identifies compression stroke in hard-to-reach areas.
In Stock
Lifetime Warranty

$21.50

  • USA Manufacturer Since 1996
  • Satisfaction Guaranteed
  • 24-Hour Repair/Replace

Customer Reviews

  • "Works great. Now I can easily tell if it’s the trailer with the problem or the truck. Simple to use."
    Ricky May
    #9107A Review
  • “Great product. Made in the USA. If you have a commercial trailer you need this.”
    Craig
    #9102 Review
  • “If you do a lot of trailer PM's or FHWA the Super Mutt is a real time saver and a must have.”
    Michael
    #9008 Review
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