The 66RFE is a heavy-duty six-speed automatic used in Ram 2500 and 3500 trucks. We carry 2 66RFE transmissions with torque converter, from $3,999.00.
66RFE transmissions in stock
| Transmission | Series | Drive | Price |
|---|---|---|---|
| RoadReady Dodge 66RFE Transmission & Torque Converter | RoadReady | – | $3,999.00 |
| StreetMonster Dodge 66RFE Transmission & Torque Converter | StreetMonster | – | $5,199.00 |
Which version do you need?
- RoadReady: a direct replacement for a worn or failed original transmission.
- StreetMonster: an upgraded unit for daily driving, towing and moderately modified engines.
66RFE specifications
- Type: Heavy-duty six-speed automatic
- Gear ratios: 3.23 / 1.84 / 1.41 / 1.00 / 0.82 / 0.63
- Typical use: Ram 2500 and 3500 trucks
Before you order
Transmissions with the same code can differ in bellhousing pattern, case length, output shaft and wiring between model years and 2WD/4WD. Confirm your year, engine and drivetrain against the listing, or send us your VIN.
66RFE transmission FAQ
What vehicles use the 66RFE?
The 66RFE is used in Ram 2500 and 3500 trucks. Confirm it on your vehicle with the RPO code or VIN before ordering; what transmission do I have? explains how.
Does a replacement 66RFE come with a torque converter?
Yes. Every 66RFE transmission we carry is supplied with a torque converter; see each listing for what else is included.
How much is a 66RFE transmission?
Our 66RFE transmissions are $3,999.00 to $5,199.00, plus a flat $80.00 shipping charge per order. Installation labor is extra; transmission replacement cost explains what to budget for.
What are the 66RFE gear ratios?
3.23 / 1.84 / 1.41 / 1.00 / 0.82 / 0.63.
What transmission fluid does the 66RFE use?
Chrysler specifies ATF+4. Confirm the specification in your owner’s manual, since it can change with model year and service bulletins; see the transmission fluid chart, transmission fluid types and how to change transmission fluid.
See also: all transmissions by code · 66RFE vs 68RFE · how often to change transmission fluid · transmission gear ratios chart · torque converter shudder.
Shipping is a flat $80.00 per order to US addresses, with 15-day free returns. Not sure which one fits? Send us your VIN and a parts specialist will confirm it.