Ultimate Power Upgrade BIG 3 - Jeep XJ/MJ

K SuspensionSKU: KS-UPE-1

Year: 87-90 (Renix)
Fuse Size: 150A
Battery Terminals: No

Usually ships in 1-5 days.


Say Hello to the Ultimate Power +/- kit for your battery cable needs. Made from 2AWG Welding Wire Cables. MADE IN THE USA!

Unlike some that only sell you 3 wires for your Battery, Alternator, and main Ground, our kit does a complete upgrade over your factory wiring.

​Each kit is hand made right in Nampa, ID. 

Kit includes 6 main wire upgrades for your needs:

91-01 Jeep XJ/MJ 4.0L


  • Battery + to Starter
  • Battery + to PDC
  • Alternator to PDC with ANL Fuse + Holder (plus spare fuse!)


  • Battery - to Chassis
  • ​Battery - to Block
  • Head to Firewall

87-90 Jeep XJ/MJ 4.0L


  • Batt to Starter
  • Batt to Starer Motor/Distribution
  • Alternator to PDC (included 2 extra lugs and heat shrink to add if you have higher output Alternator installed)


  • Batt to Engine Block
  • Batt to Fenderwell (chassis)
  • Head to Firewall

Our wiring is a thick, 2 awg welding wire; Fine Strands for best conductivity and flow of energy.

Each terminal lug is crimped on with with hydraulic compression pliers for a secure connection that won't come loose!

All cables are marked for ease of installation.

Don't know which fuse rating to get? No problem! 

Find your alternator output (i.e: 90A) Add 30% and round up! 

For example; 90 + 30% = 117, round up = 150A ANL Fuse

​You won't have any loss of power with this upgrade.

Marine grade glue-lined heat shrink for a good cover that won't crack or break over time and is resistant to cuts/scratches.

Cable lugs are Zinc Plated Copper, which acts as a shield to inhibit oxidation of the ends.

As always, Free Shipping in the USA, Additional shipping fee to International Purchases. And our cables come with a LIFETIME Guarantee on the crimps. If they ever come apart at the lug, we fix or replace it for free!

*​Professional installation is recommended, any improper installation leading to premature failure of any part will not be covered under any type of warranty*

Manufacturing Information

All DirtBound products that are made-to-order are fabricated individually according to the customer’s requests. To deliver the desired products within estimated lead times, we start to process your order on the day the order was placed. The initial process begins by allocating the needed metal specific to your order therefore orders cancelled after 2 days of order a 15% cancellation fee will apply. Returns are subject to a 20% restocking fee. Returns must be in new condition.

CA Warning: Cancer or Reproductive Harm Prop 65

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