For Jeep Wrangler JK / JKU 5-Speed to 8-Speed Transmission Conversion Kit

This conversion kit is specifically engineered for Jeep Wrangler JK and JKU gasoline models (2007–2018),
allowing owners to upgrade from the factory 5-speed automatic transmission to a modern, high-performance 8-speed automatic.

Compatible with both the 3.8L V6 (2007–2011) and 3.6L Pentastar V6 (2012–2018) engines,
this system delivers faster, smoother shifting and a noticeable improvement in throttle response and fuel efficiency.

At the heart of this upgrade is the BP‘ PCS Transmission Control System,
a proprietary controller designed to integrate seamlessly with the JK’s original electronic architecture via CAN-bus.
 fully plug-and-play.

Kit Components

• PCS Smart Transmission Controller 
• 8-Speed Transmission Adapter Assembly
  
• Dedicated Plug-and-Play Wiring Harness
• Upgrade kits vary depending on the model.

Compatible Vehicles

Fully compatible with JK (2-Door) and JKU Unlimited (4-Door) models, including Sport, Sahara, and Rubicon trims.
Not suitable for diesel (CRD) engines.

Compatible 8-Speed Transmissions

Ideal For

• All-terrain and long-distance builds
• Daily driving upgrades for smoother, faster response
• Hemi or LS gasoline engine swap projects
• JK/JKU owners seeking modern performance and transmission feel

Note: If you need to buy a second-hand gearbox, please contact us

DELIVERY POLICY: most of the countries will arrive within 10 working days. Some countries may be delayed, please contact us in advance.

🚙Countries that support DDP shipping🚙 ，you can place orders directly.

Shipping: Not included. Users can place orders directly and the system will automatically calculate shipping costs. 

Tariffs: For countries that support DDP shipping, this price includes taxes. For users in other countries, taxes are not included. Please contact us first.

Pre-Order Note: If you want to sell our products in your country, please contact us for agent policy.