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855
XL
Sifton Evolution Rocker Box Breather Upgrade 
Kit includes tap, drill bit, breather tubes and 
instructions. Fits 1992-up.
VT No. 16-0916
Remove material 
here to achieve 
correct alignment
Underside of outer rocker box cover
Umbrella valve 
replace during 
reassembly
Drain Hole Enlarge 
with drill bit supplied 
in kit
Rocker 
Cover 
Spacer
Install Slobber Stopper in this hole. 
Tap threads in this hole using tap 
supplied in kit
11-1684
11-1685
Motor Shop 1200cc Cylinder Sets include Wiseco fitted pis-
ton and ring sets to be used with 1200cc heads only. Fits 1988-
03 1200cc as stock replacement on 1200cc only. Can not be 
used as Big Bore Kit for 883 models.
VT No. 
Finish 
Ratio
11-1200 Black  9:1
11-1201 Silver  9:1
11-1202 Black  10.5:1
11-1203 Silver  10.5:1
11-1203
Replica Evolution XL Cylinder and Piston Sets are pre-fitted 
with cast pistons and Hastings Rings.
VT No.  Size 
Finish  Fits
11-2608 883cc  Silver  1986-03
11-2609 1200cc  Silver  1988-03
11-2626 1200cc  Black  1988-03
11-2609
Each kit includes two pre-fitted cylinders with pistons and 
matching Hastings piston rings, two head gaskets, two base 
gaskets and wrist pins.
Replica Cylinder for 1986-up XL’s
Cylinders for Evolution XL Models sold each. Cylinders sold 
without pistons and are not honed for final fit.
VT No.  OEM 
Model Finish 
 
Years
11-0341 16446-86A 883 
Silver 
 
1986-03
11-0343 16447-88  1200  Black Wrinkle  1988-03
11-0344 16447-88  1200  Silver 
 
1988-03
11-0342 16447-88  1200  Silver 
 
1988-03
11-0334 16463-04  1200  Silver 
 
2004-up
11-0335  16463-04  1200  Black Wrinkle  2004-up
11-0344
11-0343
11-0342
OE Breather Valves, sold each.
Front Rear  Year
11-1684  11-1685 2007-up
14-0955  
Valve Flap
Belt Buckles.
VT No.   Style
48-1351  XLH Ironhead
48-1512  XL Gas Tank
48-1473  XLH Ironhead Electric Start
48-1545 XL Points Cover
48-7787 XLCH Sportster
48-1522 Complete Set
48-1545
48-7787
48-1473
48-1512
48-1351
Engine Stand for a 1952-
2003 XL engine.
VT No. 16-0507
XLCH Motor Plaque features 1971 
style Ironhead Sportster.
VT No. 48-0372