Description
Allison 29507949 WTEC II Pushbutton Shift Selector
Remote-style shift pad with rear pigtail connector
Important notice about this item: We offer free diagnosis and bench testing of your unit. All you pay is shipping. Send us your unit and we will put it on our custom bench and test unit for functionality and codes. This component may also be referred to as a WTEC II pushbutton selector, shift pad, or selector assembly.
You will receive a comprehensive report telling you of our findings. This can help determine whether the selector is actually faulty before you purchase a replacement. Testing is completed the same day the unit is received. If unit is found to be in good working order we will advise fixes for any codes that are present including troubleshoot steps and wiring drawings, FREE!
Send us a message and we will go to work for you:
Images are for representation purposes only. For remanufactured purchases, we will send a photo of the actual unit for your approval before shipping.
| Specification | Details |
|---|---|
| Manufacturer | Allison Transmission |
| Part Number | 29507949 |
| System | WTEC II |
| Component | Pushbutton shift selector |
| Configuration | Remote style |
| Connector | Rear pigtail |
| Condition | Remanufactured |
| Transmission Families | MD/B400/3000; HD/B500/4000 |
| Related & Cross-Reference Numbers | N9507949, 29514528, 29507949-R, R29507949 |
How to identify an Allison 29507949 shift selector
The most reliable way to identify this selector is by the part number printed on the existing unit. Look for 29507949 or a verified related/cross-reference number. Also compare the physical configuration and rear pigtail connector with the replacement shown on this page. If you’re unsure whether your selector is the correct match, contact Reaction Force before ordering or send the existing unit in for bench testing.
Common Symptoms of a Failing Allison 29507949 Shift Selector
- Display does not turn on
- Buttons are unresponsive or work intermittently
- Incorrect gear display or flashing lights
- Gear commands are not reaching the transmission
WTEC II Diagnostic Trouble Codes
These codes can be associated with shift-selector or related WTEC II system faults. Diagnostic codes should be evaluated along with power supply, wiring, connector condition and system communication before replacing the selector.
- Trouble codes: 6927, 6928, 6929, 2312
Pre-checks before replacing the shift pad
Inspect the shift selector connector
Look for corrosion, bent pins, damaged terminals or loose connections.
Test voltage at the selector plug
Compare readings with the applicable OEM specifications.
Scan for shift-selector codes
Use a compatible diagnostic tool.
Try a known-good unit if possible
Or send your existing unit to Reaction Force for bench testing.
Reaction Force offers free diagnostics and bench testing. Call Reaction Force at (503) 862-6322 with your questions.
Frequently asked questions
- What is the 29507949 shift pad used for? It allows drivers to select gears in WTEC II-equipped Allison transmissions.
- Does the 29507949 shift selector need to be programmed? The selector is not typically programmed like a replacement TCM. However, proper operation depends on compatibility with the WTEC II control system, wiring, connector configuration and associated TCM. Verify the selector part number and configuration before installation.
- What if my pad is blank or unresponsive? A blank or unresponsive selector can be caused by an internal selector problem, power supply issue, wiring problem or connector corrosion. Check the selector’s power and connections before replacing the unit. Reaction Force can bench-test your existing selector to help determine whether the selector itself is faulty. Read the blog for details and troubleshooting for 29507949.
- What does code 2312 mean? Code 2312 can be associated with a shift-selector/shift-pad fault. Proper diagnosis should also include checking power, wiring, connectors and communication before replacing the selector.
- How can I test the pad before buying a new one? Reaction Force offers free bench testing of your existing selector. Send the unit to us and we will test its functionality and applicable codes. You pay only shipping. Call us at (503) 862-6322 to get started.
Core Deposit Policy – Parts
Core deposit is fully refundable once complete, “like for like” unit is returned to RF LLC. Buyer pays return shipping and is responsible for any loss of item during shipping. If the unit returned is incomplete or not “like for like” a pro-rated refund will be applied.
Please see our warranty, shipping, refund, and return policies.
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