Frame ID Numbers - 1981 & Later

1  = Made in U.S.A.
HD = Harley Davidson
1  = Weight Class
     1 = Heavyweight
     4 = Lightweight
     8 = Sidecar
AA = Model Designation
K  = Engine Displacement
     K = 1340 Shovelhead
     H = 1000 Ironhead XL
     L = 1340 Evolution
     M = 883 Evolution XL
     N = 1100 Evolution XL
     P = 1200 Evolution XL
1  = Introdution Date
     1 = Regular Introdution
     2 = Mid-Year (January)
     3 = California Special
     4 = Daytona (March)
1  = Check Digit
B  = Model Year
     B = 1981     C = 1982
     D = 1983     E = 1984
     F = 1985     G = 1986
     H = 1987     J = 1988
     K = 1989     L = 1990
     M = 1991     N = 1992
     P = 1993     R = 1994
     S = 1995     T = 1996
     U = 1997
 
Y  = Plant (York, PA)
T  = Plant (Tomahawk, WI)
J  = Plant (Milwaukee, WI)
 
013278 = Sequential Number

FL/FX Models

AA  FLH - 80
AB  FLHP - 80 Chain
AC  FLH - 80 Shrine Chain
AD  FLH - Classic
AG  FLH - Classic w/ sidecar
AH  FLHP - 80 Belt Deluxe
AJ  FLH - 80 Heritage
AK  FLHS - 80
AL  FLH - 80 Shrine Belt
BA  FXE - 80
BB  FXEF - 80
BC  FXS - 80
BD  FXB - 80
BE  FXWG - 80
BF  FXSB - 80
BG  FXDG
BH  FXST
BJ  FLST/FLSTC
BK  FXSTC
BL  FXSTS
BM  FLSTF
BN  FLSTN
BP  FXSTSB

FLT/FXR Police Models

DA  FLHTP - Windshield 1984+
DF  FLHTP - Fairing
ED  FXRP - Windshield
EF  FXRP - Fairing
EK  FXRP - C.H.P.

FLT/FXR Models

AE  1981 FLT
AF  1981 FLTC
DA  FLT 1982 and 1983 only
DB  FLTC
DC  FLHT
DD  FLHTC
DE  FLHTC w/ Sidecar
DG  FLHTC Shrine
DH  FLTC w/Sidecar
DJ  FLHTC 1986 - present
DK  FLTC Shrine
DM  FLTCU - Ultra
DN  FLTCU - Ultra w/Sidecar
DP  FLHTCU - Ultra
DR  FLHTCU - Ultra w/Sidecar
DS  FLTCU - Ultra Shrine
DT  FLHTCU - Ultra Shrine
EA  FXR
EB  FXRS
EC  FXRT
EE  FXRDG
EG  FXRS-SP  Sport Edition
EH  FXRD
EJ  FXRC
EL  FXLR
EM  FXRS - CON
FA  FLHS
FB  FLHR-I Injected
FC  FLHTCU-I Injected
FD  FLHR
FE  FLTCU-I Injected
FF  FLHTC-I Injected

Dyna Glides

GA  FXDB-D Daytona
GB  FXDB-S Sturgis
GC  FXDC
GD  FXDL
GE  FXDWG
GG  FXDS-CON
GH  FXD

XL Models

CA  XLH
    XLH 1000cc 1981 - 1985
    XLH 883 1986 - 1987
    XLH 883 Deluxe
    XLH 1100
    XLH 883 1988 - present
    XLH 1200
CB  XLS 1981 - 1985
CC  XLX 1981 - 1985
CD  XR-1000, 1983 - 1985
CE  XLH 883 Hugger 1987 - present
CF  XLH 883 Deluxe 1988 - present
CG  XLH 1200 Custom
CH  XLH 1200 Sport

Sidecars

 
SA  CLE Purchased w/FLH
SD  CLE Purchased w/FLH
SE  CLE Separate
SF  TLE Purchased w/FLTC/FLHTC
SG  TLE Separate
SH  CLE Purchased w/FLHX
GX  TLE
HX  RLE
KX  TLE Ultra

Frame ID Numbers - 1970-1980

Motorcycle Serial Numbers Vehicle Identification Number (V.I.N.) is located on the engine crankcase and is the same as the number located on frame steering head.

 
1A = Model Designation
     1A = FL-1200             6E = FXEF-80
     2A = FLH-1200            7E = FLHS-1200
     3A = XLH-1000            9E = SS-250
     4A = XLCH-1000           2F = FXS-1200
     5A = GE-750              3F = SXT-125
     6A = SS-350 Sprint       4F = SS-175
     7A = SX-125              6F = SS-125
     8A = M65-S               7F = XLCR-1000
     7B = ERS                 2G = XLT-1000
     8B = MSR-100             3G = FLH-80
     2C = FX-1200             5G = FLT-80
     3C = SX-350 Sprint       6G = FXE-80
     5C = MC-65               7G = FXS-80
     6C = SR-100              9G = FXWG-80
     1D = LE Sidecar          1H = FXB-80
     2D = X-90                2H = CLE Sidecar
     3D = Z-90                3H = FLH-80 Classsic
     5D = SX-175              5H = FLHS-80
     6D = SX-250              6H = FL-80
     7D = MX-250              7H = FLH-1200 Police
     9D = FXE-1200            8H = FLH-1200 Shrine
     4E = XLS-1000            9H = FLH-80 Police
     5E = FXEF-1200           1K = FLH-80 Shrine
 
13478 = Sequential Number
 
H = Decade Code
    H = 1970 thru 1979
    J = 1980 only
 
7 = Model Season
    0 = 1970
    1 = 1971
    2 = 1972
    3 = 1973
    4 = 1974
    5 = 1975
    6 = 1976
    7 = 1977
    8 = 1978
    9 = 1979
 
Crankcase Identification Numbers 
Numbers located on both left and right crankcase halves.
 
Big Twin: Left Case - Outside, Lower Front
          Right Case - Inside, Gearcase Compartment
 
XL Models: Left Case - Inside, Primary Compartment
           Right Case - Outside, Near Oil Pump
 
Stamped at Capitol Drive Facility
Used to identify engine and track production changes
 
Example: 1588 321 007
 
15 = Engine Designation
     1 = 1200cc Shovelhead
     7 = 1000cc Iron XL
     14 = 1340cc Shovelhead
     15 = 1340cc Evolution
     16 = XR-1000
     17 = 883cc Evolution XL
     18 = 1100cc Evolution XL
     19 = 1200cc Evolution XL
     20 = 1340cc Evolution, California (1988 - *)
     21 = 883cc Evolution XL, California (1988 - *)
     22 = 1200cc Evolution XL, California (1988 - *)
 
88 = Model Year
 
321 = Day of Production
      001 = Jan. 1st        182 = Jul. 1st
      032 = Feb. 1st        213 = Aug. 1st
      060 = Mar. 1st        244 = Sep. 1st
      091 = Apr. 1st        274 = Oct. 1st
      121 = May  1st        305 = Nov. 1st
      152 = Jun. 1st        335 = Dec. 1st
 
007 = Number That Day