SunCoast
Your Home For Gas & Diesel Performance Parts

setting the standard since 1989
High-quality
aftermarket parts
designed to perfection
Designed to perfection means every part is ours to answer for. We machine, test, and assemble in-house in Fort Walton Beach, so we can be proud of everything we ship.
American Made
Data Tested
Since 1989
setting the standard since 1989
High-quality
aftermarket parts
designed to perfection
Designed to perfection means every part is ours to answer for. We machine, test, and assemble in-house in Fort Walton Beach, so we can be proud of everything we ship.
American Made
Data Tested
Since 1989

Top Selling Products
Our Customers Love
Performance Rediscovered
68RFE Category 1 Transmission with Triple Disc Converter
The 68RFE transmission is the big brother to the 45/545RFE transmission. The RFE platform was introduced in 1999 with the debut of the new Jeep Grand Cherokee. The RFE design has 3 planetary sets for a 4-speed transmission in the 45RFE.
Shop 68RFEDriven by performance. Proudly SunCoast.
Diesel or gas. We build for both.
Pick your engine and shop for parts that actually fit. Transmissions, converters, rebuild kits, and everything in-between. No cross-referencing, no guesswork, no ordering it twice.

Gas

Diesel

Engine Components


The new 10L90 XPL Pro-Loc Billet 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 plate due to the superior heat treating characteristics. When using round bar we see the tempering is not as solid in the center as solid plate. While using this type of material increases manufacturing cost, it is a necessary step when considering the high inertia and its effects on ballooning the converter.
The SunCoast Pro-Loc Bolt-Together Converter also includes our patent-pending Zero Drag Lock-up technology with the following benefits:
- Allows constant oil flow across the clutch surfaces extracting heat and improving lifespan.
- Less parasitic loss, resulting in more power to the ground
- Quicker throttle response
- Faster spooling of aftermarket larger turbochargers
The modular clutch basket assembly allows several clutch configurations allowing maximum tunability. This new modular design allows for unmatched time savings for servicing between rounds to accommodate changing track conditions.
Turbine clearance is redesigned to a fixed clearance, with a tighter tolerance reducing slip, allowing for a more efficient torque converter. This fixed turbine clearance also improves consistency and allows two thrust bearings to be used versus the factory phenolic thrust washers.
The sprag assembly is also replaced with our SunCoast Pro-Loc XL sprag that increases bearing roller surface by an additional 15%, improving reliability. Another great feature of this converter is the 3-pass design, allowing for individual control of the converter circuit.
This converter is manufactured with provisions for 4 or 8 bolt holes to accommodate our SFI billet flexplate.All of this is clamped together with 16 12-point 5/16” bolts.
All SunCoast Torque Converters are proudly designed, engineered, and manufactured in-house in Fort Walton Beach, Florida, by American workers.
Pickup available at 631 Anchors St NW
Usually ready in 2-4 days

10L80/10L90 XPL PRO-LOC BILLET TORQUE CONVERTER 260MM
631 Anchors St NW
631 Anchors St NW
Fort Walton Beach FL 32548
United States
SunCoast Performance Parts
Great parts don't happen by accident.

Built on respect.
Driven by family.
Since 1989, SunCoast Performance has grown from a two-man shop into a leader in high-quality aftermarket torque converters, transmissions, and parts. Over the years, the team has identified and corrected countless OEM failure points using real-world test data and modern design methods. Proudly American-made, SunCoast now spans 45+ employees and more than 75,000 climate-controlled square feet. With its in-house metal supplier, National Aluminum & Alloy, on-site, the company controls manufacturing from inception to completion.
Learn MoreBuilt on respect.
Driven by family.
Since 1989, SunCoast Performance has grown from a two-man shop into a leader in high-quality aftermarket torque converters, transmissions, and parts. Over the years, the team has identified and corrected countless OEM failure points using real-world test data and modern design methods. Proudly American-made, SunCoast now spans 45+ employees and more than 75,000 climate-controlled square feet. With its in-house metal supplier, National Aluminum & Alloy, on-site, the company controls manufacturing from inception to completion.
Learn More
SunCoast
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.
Learn moreComplete Access to the SunCoast Product Line
Incentive Volume-based Pricing
Co-op Advertising Campaigns
Access to Unlimited Technical Data & Resources
Access to SunCoast Marketing Materials
Unparalleled Customer Service





















