Super MUTT® Service Truck Edition W/ Extended Cable/Hose Package
Mobile Universal Trailer Tester

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Super MUTT® Service Truck Edition W/ Extended Cable/Hose Package
Mobile Universal Trailer Tester

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Super MUTT® Service Truck Edition W/ Extended Cable/Hose Package
Mobile Universal Trailer Tester

Diagnostic light and air brake tester designed for service trucks and mobile applications.

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 $2,200.00
3 Year Warranty
30-Day Money Back Guarantee

In Stock
Ships Within 2 Business Days


Quickly Troubleshoot Lighting and Air Brake Systems with the Industry’s Leading Mobile Universal Trailer Tester Head

This intuitive and durable design is ideal for both on and off-site trailer testing and repairs on emergency vehicles.


Features and Benefits:

ELECTRICAL TESTING(12/24 Volt Operation)

  • Power lights: Manually, all-on, auto scan, or by remote control
  • Audible and visual alerts: cross, open, overloaded and short circuit indication
  • Pulsar® mode allows diagnostic repair
  • Advanced trailer wiring diagnostics
  • Amperage readout and range (0-20 amps)
  • Cable testing
  • Ground failure detection: differentiates between wire and chassis ground


  • Performs leak-down test on service and emergency lines
  • Remote control allows observation of slackers to measure and adjust pushrods
  • Real-time, repetitive brake activation to find developing problems and verify leaking servo cans


  • (2x) 12-button remote controls test all trailer electric circuitry and air brake actuation, 200 ft. range
  • Sync multiple (12) remotes to one unit


• (2x) 12-Button Remote Control (#MUT-RM12) •  12′ 7-Way Cable (7900K-1-12) • External Battery Connector with Clips (#9005A-4AS) • 12′ Red Hose with Gladhands (7900AP-12RED-FX) • 12′ Blue Hose with Gladhands (77900AP-12BLU-FX) • 500mA Battery Charger (#CHR0001) • Face/Battery Shield (#9008-4R)

Read Our Full Trailer Testing Blog Here

Connection Type: 7-Way Round Pin
Power Input: 12/24V DC
Suggested Battery: Yuasa #YTX14 or Similar Recommended
Source Output: 20A @ 12V DC
Max Operating Pressure: 120 psi
Air Input: ¼" npt (120 psi max.)
Controls: Manual, Remote, Automatic
Tires: 10" Pneumatic
Material: Powder-Coated Steel
Weight: 26 lbs.
Dimensions: 12" L x 9.5" W x 11.5" H
Warranty: 3-Year Limited Warranty

SKU: 9008-4R

Face Shield


SKU: 7900AP-26-AS

Air-In Fitting



Pressure Gauge








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