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Caution: Vehicle must be placed in park/neutral before applying air pressure, otherwise vehicle may move. Keep hands clear of fan, belts and pulleys since slight crankshaft rotation will occur.
Air Hold Fitting Set
Use to apply air pressure to keep valve closed while replacing valve spring. Set includes 14 and 18mm adapters threaded for 1/4" NPT. To use, remove spark plug and screw air hold into port. Fasten air hoseto fitting and apply pressure. Use with 912, 2078, 3087 or 3271 Valve Spring Compressors.


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