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 400-XLT 7075 Billet Aluminum Direct Drum Assembly w/ 34 Element Sprag w/ .795" 4L80E Outer Race
Regular price $1,864.58 USDSale price $1,864.58 USD Regular priceUnit price / per -
Suncoast 400-XLT Direct Drum Conversion Kit - 34 Element Sprag, Aluminum Hub & Pressure Plate
Regular price $2,906.25 USDSale price $2,906.25 USD Regular priceUnit price / per -
Suncoast 400-XLT Direct Drum Conversion Kit - 34 Element Sprag, Steel Hub & Pressure Plate
Regular price $2,906.25 USDSale price $2,906.25 USD Regular priceUnit price / per -
Suncoast 400-XLT Direct Drum Conversion Kit - Super Sprag, Aluminum Hub & Pressure Plate
Regular price $3,229.18 USDSale price $3,229.18 USD Regular priceUnit price / per -
Suncoast 400-XLT Direct Drum Conversion Kit - Super Sprag, Steel Hub & Pressure Plate
Regular price $3,229.18 USDSale price $3,229.18 USD Regular priceUnit price / per -
Suncoast 400-XST Main Shaft Kit w/ 1.125" Main Shaft, Billet Aluminum Direct Drum
Regular price $6,099.15 USDSale price $6,099.15 USD Regular priceUnit price / per -
Suncoast 400-XST Main Shaft Kit w/ 1.125" Main Shaft, Billet Steel Direct Drum
Regular price $6,346.98 USDSale price $6,346.98 USD Regular priceUnit price / per -
Suncoast 4140 Billet Steel Direct Drum - Bare
Regular price $1,527.78 USDSale price $1,527.78 USD Regular priceUnit price / per -
Suncoast 4140 Billet Steel Direct Drum Assembly w/ Super Sprag
Regular price $2,368.95 USDSale price $2,368.95 USD Regular priceUnit price / per -
Suncoast 4140 Billet Steel Direct Drum Assembly w/ Super Sprag - Use w/ 1.125" Main Shaft
Regular price $2,610.88 USDSale price $2,610.88 USD Regular priceUnit price / per -
Suncoast 4140 Billet Steel Direct Drum Assembly w/ Super Sprag, Dual Check Ball Capsules
Regular price $2,500.00 USDSale price $2,500.00 USD Regular priceUnit price / per -
Suncoast 4140 Billet Steel Direct Drum, 1.125" Main Shaft - Bare
Regular price $1,817.30 USDSale price $1,817.30 USD Regular priceUnit price / per -
Suncoast 4140 Billet Steel Direct Drum, Bare - No Sprag, Clutches, Steels, Piston
Regular price $1,657.40 USDSale price $1,657.40 USD Regular priceUnit price / per -
Suncoast 4140HT Billet Steel Pump Gear Kit - 1-1/4 Big Shaft, Calico Coated, 29 Spline
Regular price $832.55 USDSale price $832.55 USD Regular priceUnit price / per -
Suncoast 4140HT Billet Steel Pump Gear Kit - 1-3/16" Input, Calico Coated, SG3, SG4, TH400
Regular price $832.55 USDSale price $832.55 USD Regular priceUnit price / per -
Suncoast 4340 Forged Output Shaft - OEM Length
Regular price $297.50 USDSale price $297.50 USD Regular priceUnit price / per -
Suncoast 4340 Forged Output Shaft - Powerglide Length
Regular price $297.50 USDSale price $297.50 USD Regular priceUnit price / per -
Suncoast 45RFE/545RFE/68RFE FILTER FOR ZERO CAV SET UP
Regular price $15.00 USDSale price $15.00 USD Regular priceUnit price / per -
Suncoast 45RFE/545RFE/68RFE SHIFT KIT
Regular price $160.00 USDSale price $160.00 USD Regular priceUnit price / per -
Suncoast 46RE/47RE/48RE MANUAL
Regular price $70.00 USDSale price $70.00 USD Regular priceUnit price / per -
Suncoast 46RH BILLET OUTPUT SHAFT
Regular price $1,250.00 USDSale price $1,250.00 USD Regular priceUnit price / per -
Suncoast 47 WASHER KIT
Regular price $62.00 USDSale price $62.00 USD Regular priceUnit price / per -
Suncoast 47/48 INTERMEDIATE SHAFT MARAGING
Regular price $1,255.00 USDSale price $1,255.00 USD Regular priceUnit price / per -
Suncoast 47/48 23 SPLINE BILLET DIRECT DRUM
Regular price $1,295.00 USDSale price $1,295.00 USD Regular priceUnit price / per -
Suncoast 47/48 27 SPLINE BILLET DIRECT DRUM
Regular price $1,295.00 USDSale price $1,295.00 USD Regular priceUnit price / per -
Suncoast 47/48 29 SPLINE BILLET OUTPUT SHAFT
Regular price $895.00 USDSale price $895.00 USD Regular priceUnit price / per -
Suncoast 47/48 29 SPLINE OUTPUT SHAFT KIT
Regular price $1,295.00 USDSale price $1,295.00 USD Regular priceUnit price / per -
Suncoast 47/48 2ND GEAR SUPER SERVO KIT
Regular price $99.00 USDSale price $99.00 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!






















