Super Ranger MUTT® w/ ABS
Mobile Universal Trailer Tester


Super Ranger MUTT® w/ ABS
Mobile Universal Trailer Tester

  • 4300A-L4_Product_Open_w_Accessories
  • 4300A-L4_Faceplate_ABS_Faults
  • #4300A_Super_Ranger_MUTT_Action_1
  • 4300_4K_Left_Facing_Open
  • 4300_4K_Frontshot
  • 4300_4K_Backshot
  • 4300_4K_Left_Facing_Closed
  • 4300_4K_Sideview
  • 4300A-L4_Product_Dimensions
  • #4300A_Super_Ranger_MUTT_Action_2
  • #4300A_Super_Ranger_MUTT_Action_3
  • #4300A_Super_Ranger_MUTT_Action_4
  • #4300A_Super_Ranger_MUTT_Action_5
  • 4300_4K_Top_Down
  • #4300A_Super_Ranger_MUTT_Action_6
  • #4300A_Super_Ranger_MUTT_Action_7

Super Ranger MUTT® w/ ABS
Mobile Universal Trailer Tester

(1 customer review)

The industry’s first self-contained, ultra-portable electrical and ABS trailer tester.  The Super Ranger MUTT® offers full diagnostic capabilities while working onsite, offsite, or in the field, making trailer testing, fast, easy, and convenient.

Find A Distributor
For International Customers
Distributor Information

To locate a distributor near you, please call 888-786-7899 or email us here.

International Sales

To place an order from outside of the United States, please call 888-786-7899 or email us here

Price $2,395.00
3 Year Warranty

In Stock
Lead Time: 2-3 Weeks


Ultra-Portable, Battery-Powered, Advanced Diagnostic Trailer ABS and Light Tester

Integrate one-man trailer testing with this easy-to-use, remote-controlled trailer tester with advanced ABS and trailer light diagnostics. It includes an internal lithium battery, is microprocessor controlled, and features state-of-the-art current sensing, computer-controlled circuit protection, live circuit monitoring with automatic pass/fail calculations, as well as digital voltage and amperage draw readout.

Features and Benefits:


  • Reads and clears codes on LCD screen
  • Accesses ECU data: manufacturer, make, model, etc.
  • Displays diagnostic troubleshooting information
  • Automatically detects corroded ABS wires and faulty ECU’s with patent-pending technology


  • Automatic cross, open, overload, short and ground fault detection
  • Highly accurate digital ammeter with 1mA resolution
  • Chase down short circuits with Pulsar® mode
  • Ground failure detection: differentiates between wire and chassis ground
  • Control lights by remote manually


Integrated Lithium Battery • 12-Button Remote Control • 8-ft. 7-Way Round Pin Diagnostic Cable • 500mA Battery Charger

1 review for Super Ranger MUTT® w/ ABS
Mobile Universal Trailer Tester

  1. James Mason (verified owner)

    Very well designed. Easy to use, light weight, secure box, go anywhere tool. This is what we have been looking for to deal with ABS issues on our trailers. Lights and ABS is a constant problem we deal with almost daily it seems, The MUTT makes an easy way for us to keep the wheels turning. Still learning the “ropes” with it but I don’t know how we did without it before now. I thought the price we paid was a little much, but I wouldn’t give it up for twice the money. Thanks for a tool that is well designed and actually works like it’s supposed to.

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#4300A-L4 Super Ranger MUTT

Connection Type: 7-Way Round Pin Connection Type
Power Input: 12V DC
Source Output: 10A @ 12V DC
Ammeter: 5mA-21A
Resolution: 1mA
LCD Screen: Dual-Line 32 Character, All-Weather Digital
Enclosure Material: ABS Plastic
Enclosure Dimensions: 17" W x 11" H x 9" D
Storage Compartment: 7" W x 9" H x 3" D
Built-In Battery: Lithium Iron Phosphate (LiFeP04)
Weight: 11.3 lbs.
Warranty: 3-Year Limited Warranty

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