Collection: SunCoast Transmission
SunCoast Diesel – High-Performance Transmissions & Drivetrain Solutions
SunCoast Diesel is a leader in high-performance transmission systems, torque converters, and drivetrain components for Cummins, Duramax, and Power Stroke diesel trucks. Engineered for superior durability and power handling, our products ensure maximum performance for towing, daily driving, and competitive racing applications.
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Suncoast Competition Manual 28" w/ Brake, Steel Hub, 6 Clutch, 300M Shaft, Deep Pan
Regular price $2,250.00 USDSale price $2,250.00 USD Regular priceUnit price / per -
Suncoast Competition Manual 28" w/ Steel Hub
Regular price $1,695.00 USDSale price $1,695.00 USD Regular priceUnit price / per -
Suncoast Competition Manual w/ Extreme Duty Sprag Race - Forward Pattern w/ Engine Braking, 6" Extension
Regular price $1,975.00 USDSale price $1,975.00 USD Regular priceUnit price / per -
Suncoast Competition Manual w/ Extreme Duty Sprag Race - Reversed Pattern, 6" Extension
Regular price $1,850.00 USDSale price $1,850.00 USD Regular priceUnit price / per -
Suncoast Competition Manual w/ Heavy Duty 34 Element Sprag (Forward Pattern w/ Engine Braking, 4" Ext.)
Regular price $2,195.00 USDSale price $2,195.00 USD Regular priceUnit price / per -
Suncoast Competition Manual w/ Heavy Duty 34 Element Sprag (Reversed Pattern, 4" Ext.)
Regular price $2,095.00 USDSale price $2,095.00 USD Regular priceUnit price / per -
Suncoast Competition Manual w/ Trans Brake, 34 Element Sprag - Reversed Pattern, 4" Ext.
Regular price $2,250.00 USDSale price $2,250.00 USD Regular priceUnit price / per -
Suncoast Competition Manual w/ Trans Brake, 34 Element Sprag, Billet Direct Drum - Reversed Pattern, 4" Ext.
Regular price $2,850.00 USDSale price $2,850.00 USD Regular priceUnit price / per -
Suncoast Competition Manual w/ Trans Brake, Extreme Duty Sprag Race - Reversed Pattern, Chevrolet 6" Extension
Regular price $2,095.00 USDSale price $2,095.00 USD Regular priceUnit price / per -
Suncoast Competition T350 Transmission w/ Chevy Case & SFI Bell - Reverse Manual w/ Band Apply, 400HP Rating
Regular price $5,262.50 USDSale price $5,262.50 USD Regular priceUnit price / per -
Suncoast Competition T350 Transmission w/ Chevy Case - Reverse Manual w/ Band Apply, 400HP Rating
Regular price $4,512.50 USDSale price $4,512.50 USD Regular priceUnit price / per -
Suncoast Competition T400 Transmission w/ Chevy Case - Forward Pattern, Manual Valve Body, 700HP Rating
Regular price $5,762.50 USDSale price $5,762.50 USD Regular priceUnit price / per -
Suncoast Competition T400 Transmission w/ Chevy Case - Reverse Pattern, Manual Valve Body, 700HP Rating
Regular price $5,762.50 USDSale price $5,762.50 USD Regular priceUnit price / per -
Suncoast Competition T400 Transmission w/ OEM Case & SFI Bell - Forward Pattern, Manual Valve Body, 700HP Rating
Regular price $6,512.50 USDSale price $6,512.50 USD Regular priceUnit price / per -
Suncoast Competition T400 Transmission w/ OEM Case & SFI Bell - Reverse Pattern, Manual Valve Body, 700HP Rating
Regular price $6,512.50 USDSale price $6,512.50 USD Regular priceUnit price / per -
Suncoast Complete Sealing Ring Kit - Race
Regular price $19.00 USDSale price $19.00 USD Regular priceUnit price / per -
Suncoast Complete Sealing Ring Kit, Metal - OEM / Street Performance
Regular price $60.03 USDSale price $60.03 USD Regular priceUnit price / per -
Suncoast Connector Kit Plug & Socket - 4 Wire Positions, No Wire
Regular price $17.95 USDSale price $17.95 USD Regular priceUnit price / per -
Suncoast Converter Release Regulator Valve
Regular price $59.28 USDSale price $59.28 USD Regular priceUnit price / per -
Suncoast COPO Spec T400 Transmission - 2016+ COPO 632 NA Package
Regular price $23,012.50 USDSale price $23,012.50 USD Regular priceUnit price / per -
Suncoast COPO Spec T400 Transmission - 2016+ COPO Naturally Aspirated Package
Regular price $14,512.50 USDSale price $14,512.50 USD Regular priceUnit price / per -
Suncoast COPO Spec T400 Transmission - 2016+ COPO Supercharged Package
Regular price $16,012.50 USDSale price $16,012.50 USD Regular priceUnit price / per -
Suncoast CUMMINS-GM BILLET FLEX PLATE
Regular price $695.00 USDSale price $695.00 USD Regular priceUnit price / per -
Suncoast CUSTOM 48RE HARNESS
Regular price $0.00 USDSale price $0.00 USD Regular priceUnit price / per -
Suncoast DEEP PAN TRANSMISSION FILTER 845RE, 8HP51, 8HP70, 8HP75
Regular price $95.00 USDSale price $95.00 USD Regular priceUnit price / per -
Suncoast Detent Cable Sleeve
Regular price $2.75 USDSale price $2.75 USD Regular priceUnit price / per -
Suncoast Dipstick & Tube - 700R4
Regular price $124.25 USDSale price $124.25 USD Regular priceUnit price / per -
Suncoast Dipstick & Tube - Reid TH400 Case, Small Block Ford
Regular price $173.68 USDSale price $173.68 USD Regular priceUnit price / per
SunCoast Diesel – High-Performance Transmissions & Drivetrain Solutions
SunCoast Diesel is a leader in high-performance transmission systems, torque converters, and drivetrain components for Cummins, Duramax, and Power Stroke diesel trucks. Engineered for superior durability and power handling, our products ensure maximum performance for towing, daily driving, and competitive racing applications.
Our extensive product lineup includes billet torque converters, transmission rebuild kits, valve bodies, clutch packs, and custom-built performance transmissions—each designed to handle extreme torque and horsepower. Whether you're looking to upgrade for better towing capacity, smoother shifting, or all-out race performance, SunCoast Diesel has the solution.
Built with precision and tested under the toughest conditions, SunCoast Diesel transmissions and components deliver unmatched strength and reliability. Our innovative designs reduce transmission slippage, enhance shift response, and improve overall drivetrain efficiency, making them the preferred choice for diesel enthusiasts and professional builders.
Upgrade your diesel truck’s transmission with SunCoast Diesel’s premium performance parts. Shop now and experience industry-leading durability, efficiency, and power transfer!












