CharNor warrants each engine to be free from defects in material or workmanship for a period of one (1) year, unlimited hours, subject to certain conditions.  Oil leaks are covered for 90 days.  The final determination as to the root-cause of any failure is Charnor's.

The warranty is subject to the following conditions:

• A certified technician must install the engine.
• Engine must be maintained to OEM service manual standards.
• For any warranty claims made after 30 days from installation, service records must be available upon request including installation and maintenance data.
• If CharNor is presented with a possible warranty claim, we reserve the right to bring the engine to our facility for inspection.
• An oil sample analysis may be performed in determining the cause of failure.
• Warranty is void if heat tab(s) are melted or removed.
• CharNor is not responsible for failures resulting from improper installation, operator abuse, or lack of proper maintenance.​

The warranty is limited as follows:

• The warranty is limited to the replacement of defective parts.
• Dealer warranty costs are covered up to the cost of the engine.  Hours used to calculate labor reimbursements will be in accordance with approved allowances by CharNor Warranty Administrator.  The charge out rate will be $48.50/hr. Travel costs, if documented, will be covered up to 2 hours.
• Total warranty cost cannot exceed the original price of the product.
• Equipment rental and service fees will not be covered.
• Disassembly of the engine without prior approval from CharNor will void the warranty.