WARRANTY: Internal parts are covered by warranty, seals, gaskets and external parts are not covered by this warranty. This transmission and or part must be installed by an ASE certified technician. Warranty covers internal parts only. NO Labor will be paid period. Used part and unit warranty is 30 days from date of sale. Re-manufactured & new parts and units have a 30 day from date of sale in house warranty. Warranty does not cover shock load, oil related failures or abuse.