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S&S CYCLE Crankcase - Natural Duo /Hydra Glide/Model KHK 90 31-0008

S&S CYCLE Crankcase - Natural Duo /Hydra Glide/Model KHK 90 31-0008

SKU 31-0008
by S&S CYCLE
Save 10% Save 10%
$2,255.95
$2,255.95 - $2,255.95
$2,255.95
$2,030.36
$2,030.36 - $2,030.36
$2,030.36
  • Cast from A356 T-6 heat-treated aluminum alloy
  • Include crankcase bolts, washers and nuts, cylinder mounting studs, timing hole plug, magnetic drain plug, assorted breather and oil line fittings, top end oil screen spring and plug, sprocket shaft Timken® bearing assembly, oil seal, pinion shaft main bearing race, cam needle bearing assembly, oil pump shaft bushings and installation instructions
  • Use Timken style sprocket shaft bearings and 1958 and later pinion bearings (will not accept 1957 and earlier flywheels)
  • Bearing races are all line honed and breather cavity is precision machined to optimize breather timing for maximum oil scavenging
  • Machined for 3.4375" cylinders and tapped 1/4"-20 for gear covers, oil pump, tappet guides, timer and timer advance
  • Drilled for 5/16" generator mounting bolts
  • 65 models use 65 alloy inner primary
  • 63-65 models with outside oil lines must use oil port to the rear of the tappet block or oil port in gear cover and use custom oil lines
  • Made in the U.S.A.
  • Generator crankcase gear kit (includes circuit breaker drive gear, idler gear, circuit breaker gear and shims) and shafts must be purchased separately
1958-1964 Harley-Davidson Duo Glide FLH - -
1958-1964 Harley-Davidson Duo Glide FL - -
1954-1956 Harley-Davidson Model KH 900 KH - -
1954-1956 Harley-Davidson Model KHK 900 KHK - -
1952-1953 Harley-Davidson Model K 750 K - -
1952-1953 Harley-Davidson Model KK 750 KK - -
1949-1957 Harley-Davidson Hydra Glide EL - -
1949-1957 Harley-Davidson Hydra Glide FL - -
1948-1964 Harley-Davidson FL - -
1948-1964 Harley-Davidson FS - -
1948-1951 Harley-Davidson WL 740 - -
1948 Harley-Davidson 1200 UL - -

Fitment Disclosure

This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.

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