Black Widow 1000

The Black Widow 1000 from Next Level Engine & Transmission is engineered for those who demand uncompromising performance from their 68RFE. Designed to handle up to 1,000 horsepower, this transmission delivers the strength, precision, and dependability needed for 

extreme power applications — whether you’re chasing records on the track or tackling tough jobs in the real world.

The Black Widow 1000 is built to thrive under heavy load and high stress, maintaining consistent pressure, crisp shifts, and long-term durability. From high-performance towing setups to fully built street trucks, it’s the transmission that gives you the confidence to push your Cummins further — without compromise.

RECOMMENDED FOR:

• Trucks producing up to 1,000 HP
  
• High-performance towing, drag racing, or competition setups
  
• Trucks running 35”–37” tires with proper gearing
  
• Drivers who push their builds beyond typical limits

THIS TRANSMISSION FEATURES THE FOLLOWING:

UPGRADED INTERNAL COMPONENTS:

• 18 Overdrive Billet Steel Input Clutch Hub and Billet Steel Drum
• Next Level Transmission Blacklist Triple Disk Billet Converter
• Next Level Transmission Heavy Duty Roller Sprag
• Next Level Transmission Billet Input Shaft
• 300M One Piece FORGED Billet Overdrive Clutch Hub and Shaft Assembly
• Next Level High Performance Borg Warner Clutch Kit
• Extra Capacity Aluminum Transmission Deep Pan
• Next Level Billet 4C snap ring retainer
• Next Level Billet 2C Piston
• New Sonnax Pump Gear
• Revmax 2C Clutch Count Upgrade
• Revmax 4C Clutch Count upgrade
• New OEM Line Pressure Sensor
• All new OEM seals and gaskets
• OEM Filter Kit
• Next Level High Pressure Valve Body
  • Brand New OEM Solenoid Pack
  • Billet accumulators
  • Billet Channel Plate 
  • Performance SS Valve
  • High Performance Separator plate
• Tig Welded Output Planets

*FREE Billet Flexplate

TUNER INFORMATION:

For the 68RFE Black Widow 1000, the following settings should be used to properly tune the transmission:

• Line pressure set to 225 PSI above 30% throttle angle
  
• 100 PSI resting pressure
  
• No lockup until 4th gear
• Low/reverse sprag holdout enabled
  
• For 2019 and newer models, the under-drive pulse test must be turned off.

Download 68RFE Installation Installation Instructions HERE.

WARRANTY:

Includes: a 2-year / unlimited miles warranty. 

Important Notice: Trucks equipped with tires larger than 35 inches are not covered under warranty unless there is documented proof of a differential gear ratio change.

NOTE:

Next Level Engine & Transmission reserves the right to alter, update, or substitute build components and specifications at its discretion, without prior notice or obligation. These adjustments may be made to help customers meet specific timelines while maintaining the highest standards of quality, durability, and efficiency.

RETURNS:

*We accept returns within 10 days of receipt, as long as the transmission is in like-new condition and has not been installed. Please note that a 25% restocking fee applies, and customers are responsible for return shipping costs.