K&R Performance Releases Xtreme Duty Complete Wiring Kit

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K&R Performance Releases Xtreme Duty Complete Wiring Kit
1/31/2026
Cleveland, TN

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K&R Performance Engineering's "SUPER DUTY" Complete Wire Kit has been the leading choice of most major chassis shops for decades. And for good reason - it's simple, bullet-proof reliable, and complete, all at a great price. However, the constant evolution of racecars and power systems keeps pushing for more capability.

K&R is now introducing their new "XTREME DUTY" complete wiring kit. A complete redesign of the fuse panel with stronger relays and circuitry that is better optimized for extreme environments. The new switch panel has a "Prime" capability on the fuel pump and "Aux1" & "Aux2" for more accessories but in the same footprint as the Super-Duty. The Xtreme Duty kit is the most rugged and complete system available at any price! The Switch Panel and separate Fuse/Relay Panel are interconnected with a cable assembly that simply plugs into the fuse panel which drastically simplifies your wiring process. This eliminates the "clutter" of wiring to switches and relays along with saving tons of time. As a bonus, there are convenience terminals on the rear of the switch panel for powering gauges, buttons, gauge lights, interior lights, grounds, etc. Also, as with all the K&R Switch Panels, there are white LEDs on the rear of the Switch Panel that turn on when interior mode is activated.

K&R Performance Xtreme Duty Wiring Kit >> SHOP HERE

kr performance xtreme duty wiring kit

The Xtreme-Duty system like its Super-Duty predecessor comes complete with all the colored and labeled GXL wires including: Ignition, Fuel Pump(12ga), Fan(12ga), Water Pump, Delay Box(14ga), Transbrake(14ga), Throttle Stop, Pro-Stage, Lights, Starter, Tach, RPM Switch, 2-Step, Shift Timer, Water Temp, Aux 1, and Aux2. Other unlabeled colored wires include: Ground, Air/Spring Shifter, Neutral Safety, Remote Start, Crank Trigger, Coil Wires, Alternator (8ga.), Ignition Power & Ground (10ga.), and Main Power Wire with pre-terminated end(6ga.). Also included with every kit: All necessary quality terminals, heat shrink, wire ties, colored laminated POSTER SIZED wiring diagram and a NEW bolt down inline 100amp fuses for the main power feed and alternator wires. Making our Xtreme-Duty wiring the most COMPLETE wiring kit on the market at an affordable price.

kr performance xtreme duty switch panel