Most 2007 Ram 1500 pickups use a 5-speed automatic transmission (545RFE) on V8 models, while the 3.7L V6 typically uses a 4-speed automatic.
The 2007 Ram 1500 offered multiple engine options, and the transmission assignment varied by engine and configuration. This piece breaks down the common pairings and how to verify which transmission is in your truck.
Transmission options by engine
The following list outlines the typical transmission pairings you would find across the 2007 Ram 1500 lineup.
- 5.7L Hemi V8 models typically came with a 5-speed automatic transmission (545RFE).
- 4.7L V8 models also commonly used a 5-speed automatic (545RFE) in the 2007 Ram 1500 lineup.
- 3.7L V6 models used a 4-speed automatic transmission.
In short, if your 2007 Ram 1500 has a V8, it most likely uses a 5-speed automatic; if it has the base 3.7L V6, expect a 4-speed automatic. Always confirm via the VIN/build sheet or by checking the transmission itself.
How to verify your specific truck's transmission
To be sure, check your vehicle documentation and the physical markings on the vehicle. The following steps help identify the exact transmission on your 2007 Ram 1500.
Check the transmission code or pan stamp
Look beneath the vehicle at the transmission pan or splash shield area for a stamped code or tag that identifies the transmission family (for example, a 545RFE designation). A shop manual or dealer can decode the code accurately.
Check the VIN/build sheet
Use the Vehicle Identification Number (VIN) to pull a build sheet or window sticker; these documents typically list the factory-installed transmission type.
Inspect the shifter layout and vehicle indicators
The presence of a 5-speed versus a 4-speed automatic can often be inferred from the gear selector and the overdrive indicator on the dash. A dealer or mechanic can confirm if you’re unsure.
Summary
The 2007 Dodge Ram 1500 offered at least two main transmission configurations depending on engine. Most V8 models used a 5-speed automatic (545RFE), while the base 3.7L V6 used a 4-speed automatic. To know for sure, verify with the VIN/build sheet or inspect the transmission code and pan markings.