SSI Stainless Steel Heat Exchanger Pair, fits 911 (1974-83)
These SSI heat exchangers are made of 304/321 Stainless Steel, which is highly resistant to rust and exhaust heat. Replaces your crusty rusted-out factory exchangers to restore cabin heating capabilities and maintain optimal engine exhaust performance.
Replaces 1623105010, 1623105012, 91.913SSI, and 91121102114
JP-1740-0