Transmission and Engine Warranties
If you have any questions, please contact one of our Technical Support Staff.
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Allison Transmissions
- School Bus
- 3-year/unlimited mileage free from defects in materials and workmanship
All other warranties are by vocation and must be verified
through the Allison dealer.
Caterpillar Engines
- School Bus
- 5-year/unlimited miles OR 6,000 operating hours free from defects in materials or workmanship
- Commercial Bus
- 36-months OR 3,600 operating hours, whichever comes first/150,000 mile free from defects in materials or workmanship
Cummins Engines
- School Bus
- 5-year/100,000 mile free from any engine failure due to defect in material or factory workmanship under normal use and service
- Commercial Bus
- 2-year/unlimited mileage, from date of delivery to original owner, to be free from defect in materials and factory workmanship
- Covers B, C, L, M, and N series diesel engines that are used in transit, inter-city coach, and shuttle bus applications
The warranty on consumer products in the United States
is a limited warranty. Cummins is not responsible for incidental
or consequential damages.