JK 5-Speed to ZF 8-Speed Conversion Kit | 8HP45/50/70/75 | Rubicon & Sahara

Upgrade your Jeep Wrangler JK from the factory 5-speed automatic transmission to a modern ZF 8-speed transmission for improved acceleration, fuel economy, highway cruising, and overall driving performance.

This complete conversion kit is designed for 2012-2018 Jeep Wrangler JK equipped with the 3.6L Pentastar engine or HEMI V8 swap applications.

The system allows seamless integration of ZF 8HP series transmissions while retaining the factory transfer case.

Vehicle Compatibility

Factory Engine Applications

• 2012-2018 Jeep Wrangler JK 3.6L Pentastar

Supported Transmissions:

• ZF 8HP45
• ZF 8HP50

HEMI Swap Applications

• 5.7L HEMI
• 6.4L HEMI / 392

Supported Transmissions:

• ZF 8HP70
• ZF 8HP75

Transfer Case Compatibility

Rubicon Models

Compatible with:

• NV241OR Rock-Trac Transfer Case

Sahara / Sport Models

Compatible with:

• NV241 Command-Trac Transfer Case

Sahara and Sport models require a transfer case input shaft conversion. The required input shaft is included in the Sahara / Sport package.

What's Included

• BP Transmission Protocol Module
• Plug-and-Play Transmission Wiring Harness
• Transmission Cooler Lines
• Transmission Mount Brackets
• Adapter Plate
• Transfer Case Input Shaft (Sahara / Sport Package Only)
• Transmission Crossmember Reinforcement Kit
• Installation Hardware

Features

• Designed for JK 3.6L and HEMI V8 Conversions
• Uses the Factory JK Shifter Assembly – No JL Electronic Shifter Required
• Compatible with ZF 8HP45 / 50 / 70 / 75 Transmissions
• Retains Factory Transfer Case
• Supports Rubicon, Sahara and Sport Models
• Improved Fuel Economy
• Lower Highway RPM
• Faster and Smoother Shifting
• Better Off-Road Performance
• Plug-and-Play Electronic Integration

Compatible Transmission Applications

Compatible with select ZF 8HP transmissions commonly found in:

• RAM 1500 (3.6 845RE/850RE, 5.7 8HP70, 6.4 8HP75)
• Dodge Durango (3.6 845RE/850RE,5.7 8HP70, 6.4 8HP75 )
• Jeep Grand Cherokee 
• Jeep Wrangler JL (3.6 8HP75)
• Jeep Gladiator JT (3.6 8HP50)

Please provide your transmission part number before ordering to confirm compatibility.

Important Notes

• Transmission is not included.
• Transfer case is not included.
• Professional installation is recommended.
• The transmission crossmember reinforcement kit requires welding during installation.
• Please provide your vehicle year, engine type, transfer case model, and transmission part number before ordering.
• Contact us if you are unsure which package is correct for your build.

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

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.