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894
Master 
Cylinder 
Stainless Steel Master Cylinder Top Screws, 25 pack.
VT No.   OEM  
Years   Type 
37-8947  2628  
1972-81   Front Master  Top, Countersunk
37-8821  42534-82  1982-up  Reservoir    
Cover
Chrome Rear Master Cylinder Covers.
VT No.  Years
42-9945 1980-2003
42-0890 1982-2003
42-0890
42-9945
42-9945 Installed
Rear Master Cylinder Top Covers available for the 
years listed in Eagle Spirit chrome or with gold inlay 
and in smooth style.
 
Eagle Spirit  Eagle Spirit
Smooth Chrome 
Gold  
Years
23-9187  24-0629 
24-0632 1987-96
23-9190       — 
 
   —  
1982-87
23-0617      — 
 
   —   1979-81
Finned
24-0601      — 
   
 —  
1979-81
Big Twin Gaskets Master Cylinder and 
Reservoir Top Gaskets
GB No.  OEM 
Year 
Type
15-0188 45012-72 1972-81  Master
15-0204 45012-82 1982-84  Master
15-0242 45005-85 1985-95  Master
15-0250 45005-96 1996-up  Master
Rear
15-0202  41766-58 1958-78  Master
15-0203 42455-80 1979-81  Master
15-0248  42455-82  1982-E87 Reservoir
15-0540 42455-99 2000-up  Reservoir
15-0242 45005-85 1985-95  Master
15-1379 Gasket  2004-06  Master
15-1380 Gasket  2007-up  Master
15-1617 Gasket  2014-up  Master
15-1618 Gasket  2014-up  Master
23-9262
Warranty All Brake/Calipers/Master Cylinders sold as individual pieces or in kits are covered under our warranty “Replacement 
Only” Provision. All item part numbers begin with a 23 prefix. No credit will be issued for these items as they are exchange only.
Rear Master Cylinder Boots 
sold each.
VT No.  OEM 
Fits
28-0503  41764-79 1979
28-0505  40922-79 1980-86
28-2005  40922-87 1987-up
23-0617
24-0629
24-0632
24-0601
23-9190
15-0242
15-0188
15-0250
15-0203
Rear Master Cylinder.
VT No.  OEM 
Finish  Years
23-0757 42453-82B Natural  1982-E87
23-0758 42453-82B Chrome 1982-E87
23-9262 42456-87  Chrome L87-2003
23-0586 Pushrod   
L87-2003
23-0800 42521-07   
2007-up
23-0789 42521-04   
2004-06
23-1717
23-1720
Rear Master Cylinder Rebuilds.
VT No.  OEM 
Fits
23-1717 42374-77B 1980-81
23-1720 42874-82A 1982-Early87
23-9177   42382-87A  Late1987-03 
 
 
Piston Assembly
23-1211 42810-04  2004-06
23-1212 42810-07  2007-13
23-1828 41700097  2014-up
23-0586 Pushrod 
Late 1987-2003
 42436-87
23-9177
23-9201
23-1828
23-0757
23-0758
23-0789
23-2313
23-0586