The product is a set of two Quality Parts air conditioner thermal heat limiter fuses, designed to replace the GM 6551258 part. These plug-in fuses are made of black plastic and are vintage parts with a left-hand drive orientation. Manufactured by Quality Parts in the United States, they come with a manufacturer part number of 500800B and an interchange part number of 6551258 P. The fuses do not require any drilling or modifications for installation and are specifically designed for HVAC systems in cars and trucks. This product is ideal for those looking to maintain or restore their vehicle's air conditioning and heating system with high-quality replacement parts. Sample item lot is shown. Lot of 2. These are new without their original packaging, which is only shown for reference. Made in USA. No returns on installed items or partial lots. Please review our business policies in our store for information regarding returns, shipping and warranties. Most items have 30-day returns along with free fast shipping in 1 business day (see details). Message us anytime. Buy from a trusted 16+ year seller!