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Emission System for 1999 GMC Yukon

Part # / Description / Price
Price
Positive Crankcase Ventilation (PCV) Valve
GM GM
Description: Helps remove moisture and sludge build up in engine oil
MSRP $7.22
$4.15
MSRP $7.22
$4.15
Secondary Air Injection Pump
GM GM
Description: 5.7L. Helps maintain controlled air flow to proper air injection components