Huffy Serial Number Decoder

Year and model shown as prefix to engine number. For example 8-T-33445 is a 1938 Speed Twin (later identified as “5T” instead of just “T”). Frame prefixes were-“TH” for early Speed Twin. “TF” for the T-I00 and later 39/40 Speed Twin.

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Huffy Serial Numbers Determining a Huffy's age requires two steps: The last digit of the year of manufacture can be determined by the first digit of the serial number. Then you have to look for other characteristics to determine the decade of manufacture. Example: Your serial number starts with '5' Your cycle has 26 x 1.75 tires. The bicycle models that have the defective levers bear either the 'Huffy' or the 'Sears Free Spirit' trademark. Models that may contain defective brake levers are identified by the model number and date of manufacture listed below. The date of manufacture code and model number are embossed into the crank housing of each bicycle.

Year shown in engine number prefix with two figures. For example 40-5T-26445 is a 1940 Speed Twin. This practice followed religiously and some single prefixes may appear on postwar models. Frame prefixes were ‘TL” for the 3T up to 1948 and TC for 1949. TR5 for 1949 was followed by a ‘T” after the actual number. All other frames were TF. TR5 models did not have separate number series but ran concurrently with all other models. I.E. 112671 was last ’49 TR5 and I1 3386 the last ’49 5T.

Huffy serial number decoderFord serial number decoder

Note: All Grand Prix T-1 00’s have letter ‘R” suffix following engine and frame numbers. TR5 models had separate number series; engines from 101001 to 106424, frames from TC11001-T to TC13107-T. By 1950 frame and engine numbers were matching.

Huffy Serial Number

Thanks to Dave Gaylin and Lindsay Brooke for printing the above information in their book “Triumph in America”.

1940 to 1949 Models

SEASONENGINE NUMBERSFRAME NUMBERS
1946from 72000prefixed as before
1947from 79046prefixed as before
194888864 – 102235TFI 5001 – TF2500
1949102236 – 113386TF25001 – TF33615

Military – TRW Military 500cc Side-Valve Twins

YEARENGINE NUMBERS
195014401N-14459N
19516044NA – 1432ONA
195222001NA – 22838NA
195322839NA – 23273NA
195423274NA – 23322NA
195523323NA – 23597NA
195623598NA – 25447NA
195725448NA – 27127MA
195827128NA – 27175NA
195927176NA – 27346NA
196027347NA – 27645NA
196127646NA – 28185NA
196228186NA – 28464NA
196328465NA – 28827NA
196428828NA – 29605NA

1950 to Current engine and frame numbers match

Ford Serial Number Decoder

9600 to 99719

DATET15/20UNIT 350/500PRE-UNIT 500/650
19501001N – 1616ON
1951101NA – 15808NA
195215809NA – 25000NA
(then) 25000 – 32303
(no suffix)
195332304 – 44821
(no suffix)
1954101 – 851744822 – 56699
(no suffix)
19558518 – 1738856700 – 70929
(no suffix)
195617389 – 2627570930 – 82797 (then)
0101 – 0944
195726276 – 35846H101 – H7600945 – 011165
(first year for 500 unit construction)
195835847 – 45311H761 – H5484011166 – 020075
195945312 – 59359H5485 – HI 1511020076 – 029633
196059360 – 69516H11512 – H18611029634 – 030424
(first year for 500 unit construction)
1960(then) D101 – D7726
196169517 – 81889H18612 – H25251D7727 – D15788
196281890 – 88346H25252 – H27932D15789 – D20308
196388347 to 94599H27933 to H32464DU101 to DU5824
1964H32465 to H35986DU5825 to DU13374
196599720 onwardsH35987 to H40527DU13375 to DU24874
1966101 onwardsH40528 to H49832DU24875 to DU44393
1967H49833 to H57082DU44394 to DU66245
1968H57083 to H65572DU66246 to DU85903
1969H65573 to H67330DU85904 to DU90282
1969Mid ’69XC06297 to HC24527NC00100 to HC24346
1970HD27850 to KD60280JD24848 to ND60540
1971KE00001 to HE25250NE01436 to HE30869
1972JG32303 to GG59646HG30870 to JGxxxxx
1973JH15597 to DH31460JH15101 to GH36466
1974HJ56408 to JJ58103JJ58014 to NJ60061
1975DK61000 to GK62248
1976HN62501 to GN72283
1977GP73000 to JP84931
1978 HX00100 to JX10747
1979HA11001 to PA24608
1979XB24609 to XB24790XB used in error should be XAXB24609 to XB24790
1980PB25001 to KB27500
1981KDA28001 to DDA29427
1982EDA30001 to BDA31693
1983BEA33001 to AEA34389

Huffy Serial Number Decoder

Triumph Alpha-Numeric prefix numbering system started in 1969

A Triumph T140V with a motor number of T140V NP79000 would have been manufactured in October 1976 (N) for the 1977 Model year (P).

MONTH OF MANUFACTUREYEAR OF MANUFACTURE
AJanuaryC1969
BFebruaryD1970
CMarchE1971
DAprilG1972
EMayH1973
GJuneJ1974
HJulyK1975
JAugustN1976
KSeptemberP1977
NOctoberX1978
PNovemberA1979
XDecemberB1980
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    Huffy Serial Number Guide