The 2005 Dodge Magnum RT is equipped with a 5-speed automatic transmission, specifically the 545RFE, paired with the 5.7-liter Hemi V8.
In more detail, the RT variant of the Magnum from that year uses an electronically controlled automatic transmission that includes a manual shift mode called AutoStick, allowing drivers to simulate manual gear selection for a bit more control during spirited driving. This combination was common for Mopar performance-oriented applications in that era.
Transmission specifics
Key transmission specifications for the 2005 Magnum RT include:
- Transmission type: 5-speed automatic
- Model designation: 545RFE
- Control: Electronic, with AutoStick manual shift mode
- Drivetrain pairing: Matched to the 5.7L Hemi V8
In summary, the 2005 Dodge Magnum RT uses the 545RFE 5-speed automatic transmission with AutoStick, paired to the 5.7L Hemi V8 for performance-oriented driving.
Summary
The Magnum RT’s powertrain combines a 5.7L Hemi V8 with a 5-speed automatic transmission (545RFE) featuring an AutoStick manual shift mode, delivering a balance of smooth cruising and engaging driving dynamics for its era.
What kind of transmission is in the 2005 Dodge Magnum RT?
All-wheel drive became an option in 2005 on SXT and RT models. The SRT8, AWD SXT, and the RT use a Mercedes-Benz-derived 5-speed automatic transmission, while all other models use a four-speed automatic.
How much is a 2005 Dodge Magnum RT worth today?
Estimated Values
| Condition | Trade-In Value | Private Party Value |
|---|---|---|
| Excellent | $2,875 | $4,225 |
| Very Good | $2,725 | $4,025 |
| Good | $2,550 | $3,800 |
| Fair | $2,100 | $3,225 |
How to identify a NAG1 transmission?
The acronym NAG1 denotes "New" for N, "Automatic" for A, "Gearbox" for G, and "generation 1" for 1. Also, this 5-speed transmission is used to denote a category of automatic transmissions that have a round 13-way connector. The connector is stationed near the right side, front corner of the transmission oil pad.
What were the common problems with the 2005 Magnum?
Despite receiving low reliability ratings, the Magnum still impressed many drivers with how easy it was to maintain. The model, however, still has its issues. Some of these include malfunctioning airbags, ignition problems, and stuck gear shifters.


