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10L90 XPL PRO-LOC BILLET TORQUE CONVERTER This new 10-Speed Bolt-Together Torque Converter is manufactured from a solid piece of 7075 T6 billet aluminum plate versus round bar like so many other manufacturers. We take this extra step in manufacturing from solid billet plates due to the superior heat-treating characteristics. When using round bar, we see the tempering is not as solid in the center as with the solid plate. Using this type of material increases manufacturing cost initially, as well as machine operation time, however is a necessary step when considering the high inertia and its effects on ballooning the converter. Learn More
Suncoast Performance Do What You Cant... A look into the lifestyle

These knuckleheads think diesels are stupid. What do y'all think?

4l80E Billet Overdrive Planet
4l80E Billet Overdrive Planet It is not uncommon to see the splines stripped out of the overdrive planet on 4L80E's. The becomes a more prominent in higher horsepower applications or vehicles with larger wheel's and tires. This new billet 4L80E overdrive planet eliminates this by manufacturing the turbine splines from 4140 heat treated stress relieved steel. Learn More

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SunCoast carries quality-designed and manufactured transmission parts & some badass apparel to rep that SunCoast Life. Whether sled pulling, drag racing or hauling heavy loads, SunCoast has you covered.

Dealer Benefits

Leading the diesel transmission industry in innovation. SunCoast takes great pride in providing their authorized dealers with the best products and most accurate tech support possible. This translates to a seamless experience for the customer from the manufacturer to the dealer.

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