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Heavy Ranger MUTT (7-Way Round Pin Style)

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Heavy Ranger MUTT (7-Way Round Pin Style)

SKU: IPA9102 Category: Brand:



Made in the USA!

Commercial-type trailer light and electric brakes tester that allows the user to perform all testing functions without the use of the vehicle.

Test the Trailer Without the Truck!

The Heavy Ranger Mobile Universal Trailer Tester (MUTT®) is a commercial trailer light and electric brakes tester that reduces guesswork and saves time by powering each trailer electrical circuit in 7-way round pin arrangements. This allows for proper verification of wiring configuration, ground integrity, short circuit and overload conditions, along with electric brake operation and turn signal simulation. The Heavy Ranger MUTT® features a water resistant, rugged design and features an internal battery compartment and external 12v power port which can be used as a memory saver, test light supply or trickle charge input.

  • Test 7-way round pin trailer side harnesses
  • Short circuit protection
  • Turn signal simulation and power verification LED
  • Water resistant
  • Internal battery compartment (battery not included)


• 500mA Battery Charger (#CHR0001)

MUTT Comparison Chart


Connection Type: 7-Way Round Pin
Power Input: 12V DC
Battery Required: Yes
Battery Dimensions: L: 6″ W: 4″ H: 5″ (Yuasa: YTX14 or similar)
Output: 10A @ 12V DC
Overload Protection: Automatic Resetting Internal Breaker
Controls: Manual Control Knob Materials: ABS
Material: ABS
Package Weight: 2 lbs. (empty)
Package Dimensions: L: 14″ W: 8″ H: 10″
Warranty: 1-Year Limited Warranty

 Cancer & Reproductive Harm.