Tier One Stage 1 600HP 10R140 Built Transmission TODT1-10R140-ST1-X | 2020-2024 6.7L Powerstroke

Upgrade the transmission in your 2020–2024 Ford F-250 or F-350 6.7L Power Stroke with the Tier One Stage 1 10R140 Built Transmission. Designed for heavy towing, daily driving, and performance applications, this complete replacement transmission incorporates upgraded internal components and updated OEM parts to improve durability, lubrication, and power-handling capability.

Rated by Tier One to support up to 800 crankshaft horsepower, the Stage 1 10R140 is built to address common weaknesses in the factory transmission while maintaining reliable shifting and drivability. It is also suitable for stock-power trucks that regularly tow or haul heavy loads.

The transmission features a RatioTek Performance Valve Body Kit designed to improve shift response and lubrication, along with a SunCoast Guardian Torque Converter for increased torque capacity. A combination of BorgWarner D clutches and performance GPZ friction materials provides additional holding capacity while maintaining lubrication flow throughout the transmission.

Additional upgrades include an updated OEM CDF clutch hub designed to address bushing movement and lubrication concerns, a new OEM P4 gear hub, and a cast aluminum transmission pan. Each transmission is fully disassembled, cleaned, inspected, rebuilt with new sealing components, and tested before shipping.

The Tier One Stage 1 10R140 is supplied as a complete replacement assembly designed for installation without permanent vehicle modifications. A transmission relearn procedure is required following installation.

Features

• Up to 800 HP capability – Manufacturer-rated for applications producing up to 800 crankshaft horsepower
• Complete replacement transmission – Designed for direct installation in compatible Ford Super Duty trucks
• RatioTek Performance Valve Body Kit – Improves shift response and lubrication to critical internal components
• SunCoast Guardian Torque Converter – Upgraded construction designed for increased torque capacity
• BorgWarner D Clutches – Selected to maintain lubrication flow to the F clutch assembly
• Performance GPZ Frictions – Provides increased clutch holding capacity
• Updated OEM CDF Clutch Hub – Revised design helps prevent bushing movement and related lubrication problems
• New OEM P4 Gear Hub – Replaces the original component with a new factory unit
• Cast aluminum transmission pan – Provides a durable replacement for the factory pan and supports improved cooling
• New OEM transmission filter – Included during the rebuild process
• Complete internal inspection – Planetary geartrain, bearings, washers, and critical components are inspected during assembly
• New sealing components – Includes replacement seals, gaskets, and sealing rings
• Quality-tested assembly – Valve body solenoids and completed transmissions undergo inspection and testing
• Black exterior finish – Provides a clean, finished appearance
• 2-year/unlimited-mileage warranty – Subject to Tier One warranty terms and required vehicle configurations

Upgraded Components

• RatioTek Performance Trans Tuner Valve Body Kit
• SunCoast Guardian Torque Converter
• BorgWarner D Clutches
• Performance GPZ Friction Clutches
• Updated Ford OEM CDF Clutch Hub
• New Ford OEM P4 Gear Hub
• Cast Aluminum Transmission Pan
• New OEM Transmission Filter
• New Seals, Gaskets, and Sealing Rings

Specifications

• Transmission Model: Ford 10R140
• Transmission Type: 10-Speed Automatic
• Build Level: Stage 1
• Power Rating: Up to 800 Crankshaft HP
• Torque Converter: SunCoast Guardian
• Valve Body Upgrade: RatioTek Performance Trans Tuner Kit
• Clutch Materials: BorgWarner D Clutches and GPZ Frictions
• CDF Clutch Hub: Updated OEM
• P4 Gear Hub: New OEM
• Transmission Pan: Cast Aluminum
• Transmission Filter: New OEM
• Warranty: 2 Years / Unlimited Mileage
• Core Charge: $2,500
• Shipping Method: Freight

Vehicle Fitment

• 2020–2024 Ford F-250 6.7L Power Stroke with 10R140 Transmission
• 2020–2024 Ford F-350 6.7L Power Stroke with 10R140 Transmission

Required Gear Ratios

Tier One specifies the following minimum axle gear ratios based on tire size to maintain warranty eligibility:

• 35" Tires: 3.73 or numerically higher axle ratio
• 37" Tires: 4.10 or numerically higher axle ratio
• 38" and Larger Tires: 4.56 or numerically higher axle ratio

Important Application Notes

• Transmission relearn required: A transmission adaptive relearn procedure must be completed after installation for proper operation.
• Vehicle compatibility: Designed exclusively for 2020–2024 Ford F-250 and F-350 trucks equipped with the 6.7L Power Stroke and 10R140 automatic transmission.
• Core charge: A $2,500 refundable core charge applies. Refund eligibility depends on the condition and acceptance of the returned transmission. Contact the supplier regarding advance core returns.
• Freight shipping: This product ships via freight. Inspect the shipment for damage before signing the Bill of Lading and document any damage with the carrier.
• Warranty requirements: Tire size, axle gearing, installation procedures, and other manufacturer conditions may affect warranty eligibility.
• Professional installation recommended: Installation and transmission programming should be completed by a qualified technician.

Fitment: 2020–2024 Ford F-250 & F-350 6.7L Power Stroke with 10R140 Transmission

Manufacturer: Tier One Transmissions