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OPGI Price: $79.99
Part Type: (R) = Authentic reproduction of the original GM product
Sold As: EACH
2018 Monte Carlo Catalog Page: 196
These heat riser valve assemblies help your car's engine warm up faster when it's cold. After many years, they usually get rusted and have the tendency to stick open, which takes longer to warm up the engine, or closed, which significantly restricts performance. The valves come complete.