03-07 Cummins 48RE Suncoast Cat 3 Transmision Rebuild Kit

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  • Regular price $5,095.00

This SunCoast Category 3 48RE rebuild kit includes everything necessary to rebuild your 48RE transmission. This kit is a base rebuild kit for customers seeking improvement over the stock unit along with improvements to the band, band actuation, servos, accumulator piston, torque converter and input shaft. 

The addition of the billet intermediate servo, billet band anchor and billet band strut allows this kit to address the common know shortcomings of this 48RE transmission. This kit also comes with a new billet blueprinted 4.4 band lever. The new thrust washer kit also contains selective for setting endplay.

The triple disc billet torque converter that comes with this kit comes with a 2,000 stall speed. This is our Category 1 torque 48re billet triple disc torque converter. The torque converter is lined with carbon graphitic clutch material and equipped with a precision CNC machined forged billet apply piston to ensure no deflection occurs. This is an upgrade from the single disc billet converter that comes in the #SC-48-1.

One other addition to this kit is our billet one piece input shaft. This shaft is made from 300 maraging steel and is then heat treated and stress relieved to handle the additional demands of higher torque and stress loads. This shaft is precision ground to make it a true drop in replacement.

This Category 3 48RE master rebuild kit also includes a band upgrade. Our -1 and -2 kit includes a Raybestos Pro Series carbon fiber flex band. This is a big upgrade from the factory upgrade however in this kit we cross over to a billet rigid band. This band is CNC machined from billet steel and then lined with carbon graphitic lining to ensure unmatched performance by any other manufacture.

Our Category 3 SunCoast 48RE rebuild kit also includes upgrades to the flexplate. The factory 48RE flexplate is replaced with our SunCoast billet 48RE one piece unit. This new 48RE flexplate exceeds 29.3 SFI certification. This new billet one piece design is CNC machined from a single forging and specific reliefs are machined out between the converter mounting area and the crank flange to enable minimal designed torsional flex.

The last upgrade to this kit is the addition of new apply pistons for both forward and direct. SunCoast Category 3 48RE master rebuild kits replaces the factory cast pistons with new billet apply pistons. The direct piston is also included with new custom calibrated springs. The forward piston is also replaced with a new billet piece. These two improvements allow higher clamping forces without any deflection occurring. Giving a much more direct shift feel and eliminating potential cross leaks within the drum.

This kit fits all 2wd and 4wd 48RE transmissions.

Suncoast Category 3 SunCoast 48RE Rebuild Kit Features:

  • 4 Raybestos GPZ forward frictions with steels
  • 6 Raybestos GPZ clutches with steels
  • 10 Raybestos overdrive clutches with steels
  • Custom machined overdrive pressure plate
  • .073 custom snap ring for forward clutch pack
  • High flow 48RE transmission filter
  • 48RE front pump bushing
  • SunCoast custom billet carbon fiber band
  • SunCoast 48RE paper/rubber/gasket kit
  • 48RE thrust washer kit
  • SunCoast Billet accumulator piston
  • SunCoast billet intermediate servo
  • 4.4 billet band lever
  • Billet band strut
  • Billet band anchor
  • SunCoast Billet triple disc torque converter
  • Billet Input Shaft
  • Billet Forward and Direct Piston
  • Billet Flexplate


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