When the thermostat is closed, coolant is returned to the water pump though a bypass port pipe and back to the engine system. Engine parts Illustratio

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When the thermostat is closed, coolant is returned to the water pump though a bypass port pipe and back to the engine system. Engine parts Illustration.

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Size: 5000px × 5000px
Location: United Kingdom
Photo credit: © PATTARAWIT CHOMPIPAT / Alamy / Afripics
License: Royalty Free
Model Released: No

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