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These Standard Motor AIR pump check valves are one-way airflow control valves in the air supply tubes to the exhaust system. They are designed to prevent exhaust gas backflow into the air pump system. The valves can also be used in the air tube to the 3-way catalytic converter.
( 8 )
$11.99
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$176.99
Summit Bucks
Clear your codes with ACDelco A.I.R. check valves. These direct-fit replacements will restore performance, prevent exhaust gases from flowing back through your air injection system, and turn your "check engine" light off. ACDelco A.I.R. check valves are designed to OE specs to deliver the best fit and function with reliable service.
( 5 )
$92.99
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$203.99
Crown Automotive exhaust check valves prevent exhaust from forcing its way back through the air injection system, which would damage the pump and other components. If your original parts are bad, they will be unable to sense the increase in the intake manifold vacuum and may cause damage to the cylinder head, pistons, and cylinder bores.
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$27.99
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