Description
Allison 3500 Series with PTO 5th Gen 29560401 priced without a core deposit. Reman Allison Exchange Transmission with 2 year unlimited mile warranty. Buyer pays all freight for delivery of reman exchange transmission and core return. We can provide freight quotes upon request. Local pickup and free delivery within 100 miles is available. If within 300 miles, please call to see if we can still deliver for free! If we deliver this unit, we include free reflash of your TCM. Price does not include fully refundable core deposit. Please see policies page for core criteria and warranty details. Image is representation. You may request pictures of actual unit.
Built for reliability
This remanufactured Allison 3500 Series 5th Gen transmission is equipped with a Power Take-Off (PTO) provision and built to handle heavy workloads in commercial and vocational applications. Whether you’re operating delivery trucks, shuttle buses, utility vehicles, or vocational fleet vehicles, this unit delivers the reliability and performance Allison transmissions are known for.
Each transmission is fully rebuilt to OEM specs. The rebuild includes:
- New gaskets, seals, and bushings
- Updated clutches and torque converter
- Cleaned and inspected valve body
- Updated solenoids and sensors (as needed)
Need more info? Let us know what you need.
Images are for representational purposes only.
The Allison 3500 Series transmission with PTO (5th Gen) does produce diagnostic trouble codes (DTCs), especially when paired with later-generation electronic controls like Generation 4, 5, or 6 TCMs (Transmission Control Modules).
These codes are commonly referred to as P-codes and can be read using Allison DOC software or a compatible scan tool. Here are some typical categories and examples of diagnostic codes associated with the Allison 3500 Series:
Common diagnostic code categories for Allison Gen 4/5/6
1. Transmission Input/Output Errors
- P0717 – Input speed sensor signal missing
- P0721 – Output speed sensor performance
2. Shift Solenoid or Valve Body Faults
- P0756 – Shift solenoid B performance or stuck off
- P0876 – Transmission fluid pressure sensor performance
3. Gear Ratio / Clutch Slip Detection
- P0735 – Incorrect gear ratio (5th gear)
- P0736 – Reverse gear ratio error
4. TCM / ECU Communication & Power Faults
- P0601 – Internal control module memory check sum error
- U0101 – Lost communication with TCM
5. PTO-Related Faults (for models like yours with PTO)
- P1700 – PTO requested but not engaged
- P1761 – PTO control circuit range/performance
If your unit uses a WTEC II or III system, those use non-OBD codes (not P-codes). Instead, you’d see:
- 66xx series = Internal module faults (RAM, EEPROM)
- 35xx series = Power and voltage errors
- 69xx series = Shift selector or communication faults
Diagnostic support available
📞 Need help before you buy?
Call us at (503) 862-6322 today. We offer:
- Free over-the-phone diagnostics
- Compatibility checks
- Tech advice from transmission experts
Frequently asked questions
1. Is this a new or rebuilt transmission?
This is a fully remanufactured unit—tested and rebuilt to OEM specs.
2. Does it include a torque converter?
Yes. A matched torque converter is included and pre-installed.
3. Will it work with my PTO setup?
Yes—this transmission includes PTO provisions and is compatible with Allison-compatible PTO equipment.
4. Do I need to program anything after installation?
Yes. The TCM and vehicle ECM must be properly calibrated to ensure functionality.
5. What warranty is included?
Reaction Force LLC provides a 2 year unlimited mile warranty covering defects and workmanship.
