106-3948 Cast iron valve guide in/ex. +.002"
Fits: 36-47 Knucklehead; Knuckles with S&…
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Specifications
- Brand
- S&S
- Part Number
- 106-3948
- OEM Reference
- 18187-40
- Pack Quantity
- Each
- Category
- Valve Guides Intake/exhaust
- VAT Rate
- 20%
About This Product
This is the S&S cast iron valve guide for intake and exhaust. It measures +0.002 inch oversize on the outer diameter. It fits 1936 to 1947 Harley-Davidson Knucklehead engines with S&S KN or Flathead Power valve spring covers, and standard Knucklehead and S&S KN applications. It replaces OEM part 18187-40, formerly 167-408. Fit these correctly to maintain valve alignment and service life during a rebuild.
Manufacturer part number: 106-3948.
Fitment
36-47 Knucklehead; Knuckles with S&S valve spring covers; S&S KN engines
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