Knucklehead rocker box cover kit is for conversion and will fit 1938-47 late model valve spring cover set on 1936-38 models.
Kit is for use on Knucklehead exhaust rocker shaft. Five piece kit includes one seal steel extension tube and washers for 1 head. Washer has a 1.425 and 1.495 O.D. the seal has a 1.32 and 1.486 O.D. and the steel collar measures .87 in length. Rocker box seal kit has enough parts for one rear application. *NOTE: See photo for rocker arm clearance required for installaiton for rear exhaust rocker.

UOM (Unit of Measure): KIT
Manufactuer:
Manufactuer Part Number:

OEM Numbers:

V-Twin Manufacturing Part #: 14-0455