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1997-2006 Jeep Wrangler - Gen III Hemi Swap

The TJ Wrangler brought back the iconic round Jeep headlights that hearkened back to the CJ model, but the biggest changes came underneath. Gone were the leaf springs of yesteryear, a modern coil spring-based suspension in their place. This further improved the Wrangler's on-road manners while retaining its off-road capability. If that inline-4 or 6-cylinder isn't getting the job done for you, check out our Gen III Hemi swap systems.

Step 1: Engine and Transmission Mounts

  • Drop a Gen III Hemi Engine in Your Jeep Wrangler TJ Using This Engine Swap System
  • Recommended Engine is 2003-2008 5.7L Hemi Truck Engine w/ 545RFE Transmission & NP231J Transfer Case
  • Reuses Factory Skid Plate / Transmission Crossmember
Shop Mounts and Crossmembers

Step 2: Exhaust

  • 304 Stainless Steel Exhaust System
  • 3" Exhaust is High-Tuck Design to Clear Any Obstacles when Off-Road & Enough Flow to Handle Gen III Hemi Engine
Shop Exhaust

Step 3: Accessory Drives

  • Mid-Mount Accessory Drive Systems Pull the Accessories in Tight for Extra Clearance & Reduce Power Steering Pressure to Avoid Damage to the Steering Box
  • Factory Car Accessory Drive Systems Can be Modified with Alternator Relocation Kits (for extra Clearance) and Power Steering Kits to Reduce Power Steering Pressure (to Avoid Damage to Steering Box)
  • Fits Gen III Hemi 5.7L, 6.1L, and 6.4L Engines
Shop Mopar Gen III Hemi

Step 4: Terminator X and X Max

  • Standalone Plug and Play Engine Control for Gen III Hemi engines
  • Terminator X Features Real-Time Fuel Learn, High Impedance Injector Drivers, Integrated 1bar MAP Sensor & 4 Programmable Inputs and Outputs
  • Chrysler 46RE Automatic Transmission Control - With Terminator X Max & Optional Transmission Harness
  • Inputs & Outputs Are Ideal for Electric Fans, Boost Control Solenoids, Progressive Nitrous Control & More
Shop Terminator X and X Max GEN III HEMI Kits

Step 5: Universal Gen III Hemi Swap Parts

  • Find Your Parts
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