The 47RE is a four-speed automatic transmission used primarily in Dodge Ram heavy‑duty trucks during the late 1990s and early 2000s, typically paired with the 5.9-liter V8 gas engine or Cummins diesels in Ram 2500 and 3500 models.
In more detail, the 47RE belongs to Chrysler's TorqueFlite family of electronically controlled automatics. It was designed to handle higher torque than light‑duty units and was eventually superseded by the 48RE. Vehicle fit can vary by year, engine, and cab configuration, so VIN verification or a build sheet is recommended to confirm the exact transmission originally installed.
Vehicles and model years
Below is a concise list of the primary Dodge Ram platforms that used the 47RE, focusing on 2500/3500 heavy‑duty trucks and related chassis configurations from the mid‑1990s to early‑2000s.
- Dodge Ram 2500 pickups (gas 5.9L V8 and diesel Cummins variants), roughly mid‑1990s to early‑2000s
- Dodge Ram 3500 pickups and chassis‑cab variants (gas and Cummins diesel), roughly mid‑1990s to early‑2000s
In short, the 47RE was the workhorse for Ram 2500/3500 heavy‑duty configurations during that era, and it is not commonly found in light‑duty Ram 1500 models. Always verify with the vehicle’s VIN or build sheet to confirm the original transmission.
Identification and verification
To confirm a vehicle uses a 47RE, inspect the transmission's identification tag or documentation and compare it with Mopar part numbers for the 46RE/47RE family. The 47RE is typically paired with Ram heavy‑duty platforms from the mid‑1990s through the early 2000s.
Common verification tips
Look for the transmission model code on the unit, consult the owner's/service manual, and cross‑check with the vehicle’s VIN. If you’re sourcing a rebuild or replacement, ensure the unit matches the engine and chassis configuration of the vehicle.
Common issues and maintenance considerations
The 47RE, like many aging automatic transmissions, can suffer from wear in seals, valve bodies, and solenoids, with electronic controls becoming less reliable over time. Regular fluid changes using the specified Dexron/Mercon or OEM fluid, proper torque converter operation, and a professional inspection of the valve body can help maintain shifting performance in older Ram HD trucks.
Always consult a qualified technician to diagnose any shifting problems, and confirm compatibility if you’re rebuilding or swapping transmissions within a Ram HD drivetrain.
Summary
The 47RE was the four‑speed, electronically controlled transmission most commonly found in Dodge Ram heavy‑duty pickups (Ram 2500/3500) and related chassis configurations from the late 1990s to early 2000s, paired with both the 5.9L gas V8 and Cummins diesel engines. It’s not typically used in light‑duty Ram 1500s, and exact applicability should be verified via the vehicle’s VIN and transmission identification tag.