Drivetrain Automatic Transmissions and Components

Sun Coast Converters

Suncoast 48RE CAT 4 750 HP TRANSMISSION 2003-2004 4WD (WITHOUT CONVERTER) (WITH FLEXPLATE) SC-48RECAT4-0304-4WD-LC $2000 Core Charge Applies

$8,520.00

SKU: S02K SC-48RECAT4-0304-4WD-LC

In Stock
In Stock
Ships by Jun 20
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

This new Suncoast 48RE transmission is rated at 700hp. It is an ideal upgrade for those who tow and haul or have a heavily modified vehicle. Key components are upgraded to improve performance and restore hydraulic integrity: Factory plastic accumulator piston is replaced with an improved billet four-ring sealing piston. Larger billet servo with increased apply pressure and improved release, including a four-ring servo with square-cut Teflon primary sealing ring and O-ring secondary. Further upgrades include a billet band anchor, billet band strut, billet apply lever, and a pro-series, carbon-graphitic band. Valve body and pump are recalibrated, and the separator plate is replaced with a new laser-cut, SunCoast-proprietary plate for optimal line pressure and increased volume. Each valve body and pump is custom-built. Billet one-piece input shaft made from 300 maraging steel, heat-treated and stress-relieved for higher torque and stress loads, precision-ground. New overdrive and lockup solenoids, and the governor pressure sensor (transducer) are replaced. All new 48RE transmissions are upgraded with the DNJ billet solenoid housing and an upgraded governor solenoid. Billet triple disc torque converter lined with carbon-graphitic clutch material, featuring a precision-CNC-machined, forged billet apply piston and a billet cover. Includes a billet SFI certified flex plate.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSun Coast Converters
Part NumberS02K SC-48RECAT4-0304-4WD-LC

Videos

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy