48RE Front Sun Gear For Dodge Ram 2500 3500 2003-2010

Replace a worn or damaged planetary sun gear during your 48RE transmission rebuild with this front sun gear, designed to replace OEM part number 52854048AA.

Part Details

Replacement For OEM Part Number: 52854048AA
Transmission: Chrysler 48RE Four-Speed Automatic
Common Application: Front Planetary Sun Gear
Common Shell Configuration: Thick Shell, One Groove
Quantity: One Sun Gear

Vehicle Fitment

Fits Dodge Ram 2500 and Ram 3500 trucks equipped with the 48RE automatic transmission, commonly covering 2003-2010 applications. Compatible applications commonly include 5.9L Cummins turbo diesel and V10-equipped trucks. Confirm your vehicle, transmission model, and original part configuration before ordering.

Why Replace The Sun Gear?

The sun gear is a major component in the transmission planetary geartrain. Worn, chipped, stripped, overheated, or damaged gear teeth can lead to internal transmission noise, metal debris, planetary damage, inconsistent power transfer, or loss of drive. Replacing damaged hard parts during disassembly helps support a dependable rebuild.

Installation Notes

Inspect the related planetary assembly, sun shell, thrust washers, bushings, bearings, and mating gears before installation. This gear is commonly associated with thick, one-groove sun-shell configurations. Internal components may vary due to model year, transmission application, and previous transmission repairs, so compare your original component before purchasing.

Complete Your Rebuild

Pair your rebuilt 48RE with Lubegard ATF Protectant and the correct approved transmission fluid to help support smoother shifting and long-term transmission performance.