Engine:diesel
Defect Summary
If excess combustible fluids such as diesel fuel or lubrication oil build up in these engines, the excess fluid can be carried into the intake system through a valve.
Corrective Action
The crankcase depression regulator valve will be replaced with a road draft tube. This repair is to be done at the same time as the repair for campaign 80c-4.
Similar Recalls
Other recalls from Allison Transmission, Inc. or involving Engine And Engine Cooling.
FAQ: Recall 81E001000
Your rights, the repair process, and what each field on this page means.
What is recall 81E001000?
NHTSA recall 81E001000 was issued by Allison Transmission, Inc. on December 2, 1981. It addresses: Engine:diesel. The recall affects approximately 20,156 vehicles, with the defect involving the Engine And Engine Cooling component.
How do I get this recall repaired?
Contact any authorized Allison Transmission, Inc. dealer and reference NHTSA recall ID 81E001000 or the manufacturer campaign number NR (Not Reported). Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.