Vulcanworks

This nut can be used when converting from thick spline pulley used on 1994-up Big Twins & 1995-up XL to the 93-older thin spline style sprocket or pulley.
This will make up for the extra spline length.
This is also necessary on 2006-Up Sportsters that do not have a removable seal adapter.

Made from High Carbon Steel

This cannot be used with our #3518 mainshaft spacer/seal adapter.

Fits 2006-UP Sportsters
Use this spacer when converting from a belt pulley to an OEM style sprocket (thin spline).
Used with our chain kits for 2006-UP Sportsters
 

Stock Replacement For 1991-92 Evo Sportster Harley Davidsons
530 Chain
Also used when converting belt drive to chain on 1991-2005 XLs
HD # 37709-89

Stock Replacement For 1986 FXR
Also Fits all 1986-92 FXR
530 Chain
 

Adapts 1970-2005 Inner Primary Covers to 2006-up T/C-96” ‘A’ Motors

Made from Billet Aluminum.

This beefed up support will eliminate flexing when using high lift cams & stiff valve springs.

Set of Top & Bottom Breather Gaskets for Both Heads
Set of Umbrella Valves & Micro-pore Breathers for both heads

Fits our Breather Valves
Also Stock replacement for 1999-02 Twin cams.
63815-99
17591-99
17592-99
26858-99

Used in Motor to Transmission Mounting & Between Left and Right Cases

All 1999-up Twin Cams
Set includes 2 Dowels

Parts for 3757

Machined with extra clearance for high lift cams
Matches our cam cover & rocker box set

Billet Aluminum & Chrome Plated

Includes Stainless Steel Hardware

Includes bolts & Washers for one motor

Breather housings are precisely machined from 6061 billet aluminum for a leak proof seal.

Includes Viton Coated Steel Gaskets, Umbrellas, Micro-Pore Oil Seperators & Grade 8 Bolts

This unit won't suck in oil as O.E.M. units do.

For all 1999-17 Harley Twin Cams

Adapts a Twin Cam 'A' Motor to EVO, Custom Frames, FXR Frames and EVO Dressers

Milled from 1018 CF Steel
Not Stamped!