At Masso Diesel, we stand behind the quality of our products. All items sold by Masso Diesel are covered by a twelve (12) month limited warranty with unlimited mileage, starting from the shipment date. For best results and to avoid warranty issues, we strongly recommend installation by a qualified or certified technician.

What This Warranty Covers

This limited warranty applies to electronic fuel injectors, turbochargers, electronic actuators, fuel pumps, and related electronic components. Coverage is limited to defects in materials or workmanship under normal use and proper installation.

If a product is determined to be defective, Masso Diesel will, at its discretion, repair, replace, or issue a credit for the item. Proof of purchase may be required to process any warranty claim.

What This Warranty Does Not Cover

This warranty does not cover failures resulting from:

Incorrect application or misdiagnosis

Improper or non-professional installation

Abuse, misuse, overloading, or negligence

Lack of lubrication, contamination, or poor maintenance

Accidents or external damage

Unauthorized repairs or modifications

The warranty does not include labor costs, diagnostics, towing, downtime, loss of income, or any indirect or consequential damages.

New Product Manufacturer Warranty

Warranty coverage for new products is subject to the terms and conditions of the original manufacturer or supplier (such as Delphi, Bosch, Denso, Alliant Power, and DAP).

Additional Terms

This warranty applies only to the original purchaser, is non-transferable, and cannot be redeemed for cash. Masso Diesel assumes no responsibility for installation-related expenses or secondary costs.