How much does it cost to replace a heater core on a Geo 1991 prism?

Replacing the heater core on a 1991 Geo Prism typically costs between $800 and $1,200, including parts and labor. The price can vary based on the shop's labor rates and the cost of the replacement parts. It's advisable to get quotes from multiple mechanics to ensure a fair price. Additionally, the complexity of the job may lead to higher costs if other components need to be removed for access.