Seller notes

OFFERED: ONE NOS GM CHECK VALVE (NOT JUST A FITTING)...PN 518401... GRP 4.955--PART NUMBER IS IN THE OLDS & PONTIAC RANGE, BUT I DON'T KNOW THE APP...NOR CAN I FIND IN MY BOOKS----HAS HAD EXCELLENT STORAGE...A VERY NICE NOS PART AND HARD TO FIND-----SHIPPING FOR THE 48 STATES IS $8.50---PAYMENT REQUESTED WITHIN 2 DAYS--THANKS. NOT SURE IF FOR AIR SUSPENSION, POWER BRAKES OR TRUCK AIR BRAKES.... CLEARLY 1950S AND/OR EARLY 1960S ALL SALES ARE FINAL....

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