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OPGI Price: $12.99
Part Type: (G) Genuine General Motors product
Sold As: EACH
2015 Riviera Catalog Page: 1312016 Riviera Catalog Page: 132
This thermostat bypass hose is crucial to proper cooling and water flow in the engine. The hose fits between the water pump and the intake manifold allowing a small amount of water to bypass the thermostat while the engine is cold. Sold per each.