triple disc torque converter for the 2007-Current 68RFE equipped6.7L
Cummins is manufactured and assembled at SunCoast. Boasting
more than 3.4x the lockup clutch surface apply area over stock
(8.7” vs. 29.7”) and distributing the load over
three separate surface apply areas, SunCoast’s triple
disc converters are sure to put all of the power to the ground.
Starting with a solid chunk of steel, the cover is machined
to exact specifications. Utilizing SunCoast’s exclusive
trapezoidal teeth design, the lockup portion of the converter
is seamlessly integrated into the cover, eliminating a weak
point and common source of chatter.
An upgraded billet lockup apply piston is
able to transfer a much higher pressure to the lockup clutch
without sacrificing durability. Instead of the factory-style
plastic stator cap/thrust spacer, SunCoast utilizes a metal
Torrington roller style bearing, which is better suited to
take the heat, as well as wear and tear. The turbine assembly
is TIG reinforced and heat-treated. This exponentially increases
its lifespan under harsh conditions. Stall on this model is
approximately 2000 RPM, and much more efficient at energy
transfer than the factory offering.