Description
Allison Transmission Temp Gauge Part #29545368
Compatible Allison transmissions: Select MD and HD Allison automatic transmissions (application varies)
The Allison 29545368 transmission temperature gauge plays a key role in preventing transmission damage by alerting operators to abnormal fluid temperature conditions. Excessive heat is one of the leading causes of premature transmission failure, making a functioning temperature gauge essential for long-term reliability.
This gauge is commonly installed in the instrument panel or dash and interfaces with the transmission temperature sender to provide real-time feedback during operation.
Ideal for:
Replacement of failed or inaccurate transmission temp gauges
Restoration of OEM instrumentation
Vocational vehicles with severe-duty cycles
Applications requiring direct temperature monitoring
Common symptoms of a failing transmission temperature gauge
- Inaccurate or erratic temperature readings
- Gauge not responding or stuck at a fixed value
- Warning of overheating with no actual temperature rise
- Failure to indicate dangerous temperature conditions
- Intermittent readings due to wiring or internal gauge faults
Always confirm whether the issue is the gauge, sender, or wiring before replacement. Reaction Force can assist with diagnostics.
Pre-installation checklist
Confirm gauge compatibility with transmission and temperature sender
Inspect wiring harness and connectors for damage or corrosion
Verify sender resistance and signal operation
Ensure dash mounting location and gauge size are correct
Installation notes
- Disconnect vehicle power before installation
- Remove faulty gauge from dash or instrument panel
- Install new gauge using OEM mounting hardware
- Connect wiring according to Allison or vehicle manufacturer schematics
- Verify operation during warm-up and under load
Common Questions about the Allison Transmission 29545368 Transmission Temperature Gauge Kit
What does the Allison 29545368 temperature gauge monitor?
It displays automatic transmission fluid temperature, helping operators detect overheating and protect internal transmission components.
Which Allison transmissions use this temperature gauge?
This gauge is used in select medium- and heavy-duty Allison automatic transmission applications. Exact compatibility varies by vehicle and instrumentation setup.
What temperature range should an Allison transmission operate in?
Normal operating temperature typically ranges from approximately 160°F to 220°F, depending on application and load. Sustained temperatures above normal range can indicate cooling or fluid issues.
Can a faulty temperature gauge cause transmission damage?
Indirectly, yes. If the gauge fails to warn of overheating, the operator may continue operating the vehicle under damaging conditions.
Does this gauge require programming?
No programming is required. However, proper wiring and a functioning temperature sender are required for accurate readings.
Should the temperature sender be replaced at the same time?
In many cases, yes. Replacing the sender can help ensure accurate readings and reduce troubleshooting time.
Need help?
Reaction Force provides:
Transmission diagnostics and instrumentation support
Gauge and sender compatibility verification
Expert guidance for Allison MD and HD platforms
Real-world support from technicians experienced in severe-duty applications
Call or text: (503) 862-6322
