Adaptors Fit Standard 1/4" Pipe Air Hose Couplings

Use air holds to apply air pressure to hold valves closed while replacing valve springs. Remove spark plug and screw air hold into port. Fasten air hose fitting and apply pressure. Supplied in sturdy vinyl pouch.

• Use with items: #4057, #4115, #4120, #4123, #4140, #4158 valve lifters.
• Lengths: 1.1/2" (40mm), 1.3/4" (44mm).