Product Description
The REVMAX 478-502A 300M Billet Output Shaft is a serious upgrade for high horsepower and heavy towing 47RE and 48RE transmissions found behind the legendary 5.9L Cummins. Designed for strength, durability, and improved torsional resistance, this 300M billet shaft is built to handle power levels that overwhelm factory output shafts.
Whether you're building a street/strip truck, competition puller, or heavy-duty tow rig, upgrading to a 300M billet output shaft is a critical step in preventing catastrophic drivetrain failure.
Key Features:
- Manufactured from high-strength 300M alloy steel
- Designed for high horsepower and high torque Cummins applications
- Ideal for performance rebuilds and upgraded transmission builds
- Direct-fit replacement for factory output shaft (application specific)
Why Upgrade Your Output Shaft?
- Prevents twisting or shearing under extreme torque loads
- Essential for trucks with upgraded turbos, injectors, tuning, or compounds
- Improves long-term reliability in heavy towing applications
Fitment:
- 1996–2002 Dodge Ram 2500/3500 – 5.9L Cummins – 47RE
- 2003 Dodge Ram 2500/3500 – 5.9L Cummins – 48RE
| Specifications for REVMAX 478-502A | |
|---|---|
| UPC | Not Available |
| GTIN | Not Available |
| Shipping Info | Shipping Weight: Approx. 8–12 lb (varies by packaging) Ships via UPS / FedEx Ground |
| Prop 65 | WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov |
FAQ
Is this output shaft compatible with both 47RE and 48RE?Yes. The RevMax 478-502A is designed for specific 47RE and 48RE applications used behind 5.9L Cummins engines from 1996–2003. Always verify spline count and build configuration during installation.
Do I need this if I am increasing horsepower?
If your truck has upgraded injectors, turbochargers, aggressive tuning, or sees heavy towing use, a 300M billet output shaft is strongly recommended to prevent twisting or failure.
Is professional installation recommended?
Yes. Installation requires complete transmission disassembly and proper measurement procedures. Professional transmission assembly is highly recommended.
Is this stronger than the factory shaft?
Yes. 300M alloy steel offers significantly higher tensile strength and fatigue resistance compared to OEM shafts, making it ideal for high-torque diesel builds.
