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Painless Wiring 57021 Trail Rocker System Kit

7123076 - 57021

Underdash 4 Switch Box - Incl. Switches/Fuse/Relay Center/Switch Control Pigtail/Ignition Pigtail/Hardware/Power And Ground Terminal Kit

57021 Trail Rocker System Kit Painless Wiring

View the Full List of Automotive Applications »

Pricing: $474.99


Painless Wiring - Trail Rocker System Kit - Part#: 57021 Features:

  • Controls Up To 8 Accessories
  • Weatherproof Housing Around Power Center and Connections
  • 8-30 AMP Fuses And 8-30 Amp Relays
  • Custom Bolt-On Powdercoated Bracket For The Power Center
  • Various Switch Panel Options
  • Fuses Light Up When Blown
  • Winch Ready

View the Full List of Automotive Applications »

Below is an abbreviated list of applications for the Trail Rocker System Kit.
CJ5, CJ7, Scrambler, Jeep, 1986, 1985, 1984, 1983, 1982, 1981, 1980, 1979, 1978, 1977, 1976


It's a lot more than circuits and wire! How often have you seen advertisements for wiring harnesses promising, 21-circuit kit for the low, low price of...? What do you get for that low price? 21 circuits and yards of colored wire? Is that all you need, and exactly what makes up a proper wiring harness, anyhow? Well, it's a lot more than just circuits and wire. A wiring harness is, first and foremost, engineering. At Painless, all of our harnesses are designed by real engineers using the latest in diagnostic equipment and AutoCAD to ensure consistency in manufacturing and an accurate and easy installation. Finally, and certainly not least, there's quality. You deserve the assurance that after installing a harness it's going to work: That when you turn on the headlights, they shine; That the blinkers blink and that the engine starts. At right you see a Painless fuel injection harness on our exclusive test board. Every single fuel injection harness, before it goes in the box, is mounted first on a test board like this. Each blue connector simulates a particular engine function. This test ensures that all connections are working properly, all pinouts are correct and there is continuity in all the wires. When you install a Painless harness, we GUARANTEE it is going to work. If you're looking for superior quality, engineering and craftsmanship, Painless is your only sensible choice. Painless has remained the leader in automotive wiring and electrical products for over seventeen years through engineering and innovation, not corner cutting and imitation.


  • 7123076 - 57021
  • 7123076
  • 57021
  • 749823570214
  • Painless Wiring
  • New

Shipping Information

  • Item Requires Shipping
  • 15.6 lbs.
  • W16.0000” x H10.0000” x L18.0000”

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