GRAND BLANC, Michigan – Effective April 1, more than 281,000 Genuine GM and ACDelco service replacement parts will be covered under a 24-month unlimited-miles warranty, according to General Motors.

For many parts, warranty coverage will be doubled.

“The need for service replacement parts continues because the average age of cars and trucks keeps rising,” said David Mestdagh, general director of global product development, GM Customer Care and Aftersales. “Customers and technicians who want to keep these vehicles safe and reliable – no matter what brand they drive – can choose products with even more confidence than before.”

Under the new plan, most Genuine GM and ACDelco original equipment and ACDelco Professional warranty terms are increasing from 12 months (with either 12,000 or unlimited miles) to 24 months and unlimited mileage, affecting key products such as engine and transmission components, emission parts, wipers and water pumps, according to the automaker.

A few product lines will continue to have limited lifetime warranty terms, including shocks and struts, wire sets, radiators and fuel pumps. ACDelco’s Advantage line will be covered for 12 months and unlimited mileage.

For a complete list of parts and limited warranty terms, visit www.ACDelco.com and www.GenuineGMparts.com.

“Our original equipment parts are engineered and tested to GM’s high quality, durability and reliability standards,” Mestdagh added. “As an added benefit to our customers at every level, under the new plan Genuine GM and ACDelco parts warranties will be consistent at all authorized outlets.”

Mestdagh said GM has streamlined its warranty across its parts brands to provide a consistent warranty on Genuine GM and ACDelco parts sold through more than 4,000 GM dealers and 28,700 independent shops and retailers.