The EPA requires all primer bulb assemblies to utilize low permeation components to reduce pollution causing hydrocarbon permeation through the hose and/or primer bulb by as much as 85%. In response, Sierra introduced a new EPA approved primer bulb that exceeded the mandated permeation rate while maintaining Sierra's traditional look, feel and operational characteristics. manufactured from a unique FKM material, Sierra's primer bulb meets both EPA and carb standards while providing outstanding warm/cold weather flexibility. The Silverado 4000 is a rubber fuel line with fabric reinforcement that features a PVDF layer to prevent permeation. Designed to meet all EPA/carb requirements and compatible with all blends of ethanol reformulated fuel, the Silverado 4000 is extremely flexible and kink resistant in all weather conditions. Replaces Mercury/Mariner 32-858109Q12, 32-858109K12.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov

Application Notes
OEM	OEM_Part_Number	MfrName	Description
MERCURY MARINE	32-858109K12	Sierra	Epa Fuel Line Assembly-Mercury