Warranty Information

A1 Transmission of GA Inc. proudly stands behind our work with the following 
Limited Warranty coverage:

Stage 1 Diesel/Lightning Builds - 3-Year / Unlimited Mileage

Stage 2 Diesel/Lightning Builds - 2-Year / Unlimited Mileage

Stage 3 Diesel/Lightning Builds - 1-Year / 18,000 Miles


This Limited Warranty covers repair or replacement—at our discretion-of any defective components. It is designed to protect both our customers and
A1 Transmission of GA Inc. from manufacturing-related defects. However, the warranty does not cover failures resulting from:

  • Abuse or misuse
  • Low fluid levels
  • Parts breakage
  • Improper tuning
  • Incorrect installation
  • Failure to flush or replace the transmission cooler and related components
  • Undersized transmission lines or inadequate cooler systems
  • Addition of inline aftermarket filter systems that may cause fluid restriction


    Labor Coverage for Stage 1, 2, and 3 builds, if a failure occurs within the first year, A1 Transmission will cover 100% of the labor costs only if the unit is returned to our facility.

    For shipped or out-of-state units, we will contribute up to $500 toward shipping fees.

    Vehicle transport or tow truck services are not covered.

    Second and Third Year (Stage 1 & 2 only):
    A1 Transmission will cover 100% of the labor for in-house repairs.

    The cost of parts during this period is the customer's responsibility.

    No shipping or transport fees will be covered beyond the first year.


    Important Notes:
    Broken shafts, drums, or other hard parts are not covered under any circumstance. High horsepower/torque applications can exceed the physical limitations of internal components.

    This warranty is non-transferable.

    The most common causes of failure are improper installation and failure to flush or replace the transmission cooler. Please read all installation instructions thoroughly.

    If you have any questions or need support during your installation, our team is here to help.

    Additional Disclaimer:
    A1 Transmission of GA Inc. is not responsible for rental car expenses, loss of income, downtime, lodging, or any incidental or consequential damages resulting from vehicle downtime, whether or not covered under this warranty.