Spring-needle valve
Genuine OEM Part - Manufacturer #691592
Needle Valve, 3.5 & 4 HP Max Series & Quantum 5 & 6 HP Vertical (Float Carburetor)
Genuine OEM Part - Manufacturer #493765
Needle Valve, 4 HP (8 CID) Vanguard, 5.5 HP (11 CID) & 9 HP (18 CID)
Genuine OEM Part - Manufacturer #715293
Kit-idle speed
Genuine OEM Part - Manufacturer #493280