Harley Transmission Serial Numbers

Harley Transmission Serial Numbers

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Harley Transmission Serial Numbers Identification
Harley Transmission Serial Numbers Lookup
Harley Transmission Serial Numbers Identification
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There is no match between vin and trans. From 2000 on the trans. Number system was year then 6 digit sequential trans. 02 000123 would be a 2002 trans., 123rd built. An important part of trans.# is the style and location of numbers. Look just below the ratchet lid gasket on the top right front side of the case. You should see a letter and number code. A 71 should have a letter G or H with four numbers after it. The letter on that code tells the year. Starting in 1962 the letter is A, in 63 it could be an A or B, 64-B, C or D, 65-C or D, 66-D, E, F or G, 67-D or E, 68-E.

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Harley Davidson® VIN Identification Guide
This list is unofficial and is not gospel, only what I have been able to cross in various manuals, web sites and dealerships. If you have more updated info on this data, please let me know. 
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Will office 2011 for mac run on el capitan. 1903-1909 | 1910-1919 | 1920-1929 | 1930-1936 | 1937-1961 | 1962-1969 | 1970-1980 | 1981-2000 | 2001-2009 | 2010-Present
1937 | 1938 | 1939 | 1940 | 1941 | 1942 | 1943 | 1944 | 1945 | 1946 | 1947 | 1948 | 1949 | 1950 | 1951 | 1952 | 1953 | 1954 | 1955 | 1956 | 1957 | 1958 | 1959 | 1960 | 1961
VIN InfoEngine number is the VIN and is located on left case.
 NO frame number. 
Example: 42 WLDR 1112
42 = Year

WLDR = Model
45 CID Solo
W = Standard 45 CID FlatheadW = 45ci twin, low compression (1937)WL = Sport solo, High Compression 45 twin (1937-1939)WL = High Compression 45 ci twin (1940-1942)WL = 45 ci twin (1945-1951)WLA = Military Version 45 ci twinWLD = 45 ci Sport solo, extra high compression (1937-1939)WLD = 45 ci Sport solo (1940-1941)WLD = 45 ci Special Sport solo (1942)WLDR = 45 ci Flathead, competition model (1937-1940)WLDR = 45 ci Flathead, Special Sport solo (1941)WR = Factory Racer 45 ci twinWS = 45 ci , sidecar gearing (1937)
45 CID Trike
G = 45 CID TrikeGA = 45 CID Trike without tow barGD = 45 CID Trike Servicar, no tow barGDT = 45 CID trike Servicar w/towbarGE = 45 CID trike w/ electric start GL = 45 CID Trike
74 & 80 CID Solo Flathead
U = 74 ci twin, medium compression (1937-1948) UH = 80 ci twin, solo, medium compression, sidecar gears (1938)UH = 80 ci twin, solo, medium compression (1939-1941)UHS = 80 ci twin, medium compression, sidecar gears (1937-1940)UL = 74 ci twin special sport solo (1937-1942)UL = 74 ci twin, high compression solo (1943-1948)ULH = 80 ci twin, special sport solo (1938-1941)US = 74 ci twin, medium compression, sidecar gears (1938-1940, 1945-1948)
K Models
K = 45 ci SV twin, Sport model (1952-1953)KH = 55 ci Sport model (1954-1956) KHK = 55 ci Sport model w/ special speed kit (1954(?),1955-1956) KHR = 55 CID 55', SV Twin (1954-1956) KK = 45 CID 45' SV twinKR = 45 ci SV twin, four speed trans, magneto ign, flat track racer (1953-1961)KRTT = 45 ci SV twin, four speed trans, magneto ign (1956-1957, 1961)KHRTT = 55 ci OHV twin, TT racer (1954-1957)
Sportster Models
XL = 55 CID OHV (1957)XL = 55 ci OHV, mediun compression (1958-1959)XLC = 55 ci OHV, 9:1 (1958)XLCH = 55 ci OHV, 9:1, magneto ignition (1958-1959)XLCH= 55 ci OHV, Super CH Sportster (1960-1961)XLH = 55 ci OHV, 9:1 (1958-1959)XLH = 55 ci OHV, Super H Sportster (1960-1961)XLRTT = 55 ci, TT Racer (1961)
Experimental Model
XA = 45 CID Horizontally Opposed Twin (First 1/2 1942)
Overhead Valve Big Twin Models
E = 61 ci OHV twin, medium compression (1937, 1941-1948)EL = 61 ci OHV twin, Special sport solo (1937-1948) EL = 61 ci OHV twin, sport solo (1949-1951) EL = 61 ci OHV twin, sport solo, hand shift (1952) ELF = 61 ci OHV twin, sport solo, foot shift (1952) ELS = 61 ci OHV twin, sidecar gears (1951) ELS = 61 ci OHV twin, sidecar gears, hand shift (1952) ES = 61 ci OHV twin, medium compression, sidecar gears (1937-1940, 1945-1949) ES = 61 ci OHV twin, sidecar gears (1950) F = 74 ci , medium compression (1941, 1943-1950)FL = 74 ci, Special sport solo (1941-1949) FL = 74 ci, sport solo (1950-1952)FL = 74 ci, sport solo, hand shift (1953-1961)FLE = 74 ci, hand shift w/ traffic combination (1953-1956)FLEF = 74 ci, foot shift w/ traffic combination (1953-1957)FLF = 74 ci OHV twin, sport solo, foot shift (1952, 1954-1961)FLH = 74 ci OHV twin, super sport solo, hand shift (1955-1956)FLH = 74 ci OHV twin, super sport, hand shift (1957-1961)FLHF = 74 ci OHV twin, super sport solo, foot shift (1955-1956)FLHF = 74 ci OHV twin, super sport, foot shift (1957-1961)FLS = 74 ci OHV twin, sidecar gears (1951-1952)FS = 74 ci, OHV twin, medium compression, sidecar gears (1945-1950)
Two-stroke Models
A = Topper scooter - 165cc singel, belt drive, auto trans, 9 HP (1960)AH = Topper scooter - 165cc singel, belt drive, auto trans, 9 HP (1961)AU = Topper scooter - 165cc singel, belt drive, auto trans, 5 HP w/ carb restrictor (1960-1961)BT = Super 10 - 165cc single, 9 HP(1960-1961)BTU = Super 10 - 165cc single, 5 HP, w/ carb restrictor (1960-1961)?? = Hummer - 125cc single (1955-1959)S = 125cc single (1948-1952)ST = 165cc single (1953-1959)STU = 165cc single, modified carb (1954-1959)
Other Four-stroke Models
C = Sprint - 250cc single (1961)CRTT = 250cc, single, OHV, 9.5:1, 4 speed trans, battery ignition, off road racer. (1961)
74 and 80 CID Flatheads were produced 1937-1952
Knuckleheads were produced 1936-1947
Panheads were produced 1948-1965
K Models were produced 1952-1956, with the exception of the KR (1969 Only)
Ironhead Sportsters were produced 1957-1984
1112 = Sequential production Number 
Production
1937 - 11,6741938 - 9,9341939 - 8,3551940 - 10,8551941 - 18,4281942 - 29,6031943 - 29,2431944 - 17,0061945 - 11,9781946 - 15,5541947 - 20,3921948 - 31,1631949 - 23,7401950 - 18,3551951 - 14,5801952 - 17,2501953 - 14,0501954 - 12,2501955 - 9,7501956 - 11,9061957 - 13,0791958 - 12,6761959 - 12,3421960 - 15,7281961 - 10,497
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