I didn't make this list Hellmutt did with the help of all the other member mentioned bellow, i'm just reposting this because the original got deleted, i'm not an expert on haro bikes- dont pm me please post a threand in the name it section if you need help with your serial numbers and post pictures of the bike if you need help finding the model name 

DOMPHIPPSIO Im adding this link as i have probably now collated the most up to date list of the US Made Haro models (Freestyler, Sport and Master) on my site. We try and sweep up any new serials via the forums and ebay each week and have had a lot of help from people rght here in the museum. For that i say a big thanks:
http://www.harobmxcollector.com/registry/

Haro Registry:
http://bmxmuseum.com/forums/viewtopic.php?id=541225

Haro Serial Numbers

**************************************************************************
    If ANYONE has clear serial number pics they would like to donate to this thread, please PM me!  Would like to get as many examples as possible to help everyone out and show the little differences!
**************************************************************************

This list is by no means complete!  Hobbes12 asked for a Haro serial list from me months ago and if I don’t at least post this now, nothing will ever get posted!

  Please be patient, I will be editing for an easier read the rest of the day as well as adding info from now on.

First and most importantly, ANY serial number on ANY Haro (just about any manufacturer for that matter) can only tell you the date the frame was manufactured and does   not always reflect the actual model year the bike was sold under.   Model year depends on frame style, color, features, parts, etc.   
           
                                                  PLEASE KEEP THAT IN MIND!!

For anyone confusing an actual Freestyler model Haro with a Master, PLEASE review the pics in the museum here or on affiliate sites.

Also keep in mind that there are many twin top tube frames out there from other companies that can be confused with a Freestyler

1983-84 Information below provided by BRIAN P
http://www.bmxmuseum.com/forums/viewtopic.php?id=6727

             
Chip @ C4 Labs has provided some very good info!!  Apparently ALL of the Freestylers in the museum listed as 1982 models are in fact 83's.  I will edit them in the near future.

  More good info from Chip @ C4 Labs:  "The only 1982 Haro's in collector's hands are TXX 0154 F, TXX 0156 F,  TXX 0245 F, and now  ZT 0019 F that I own.  Yes, all the 1982 Freestylers listed in the museum are actually 83's. There are several key manufacturing updates they made from '82-'83 but no one had one to compare until a year ago, and the serial #'s were just decoded a few years ago."

  Chip will be providing the rest of the much needed info some time here in the future for everyone to benefit from    Thanks again Chip!

             Freestyler

ZT 019 F      Freestyler 1982  Lowest known serial number, provided by Chip @ C4 Labs
TUU 821 F    Freestyler February 1983
TTT 1029 F   Freestyler March 1983
TTT 1041 F   Freestyler March 1983
TSS 1105 F   Freestyler April 1983
TSS 1118 F   Freestyler April 1983
TSS 1141 F   Freestyler April 1983
TSS 1163 F   Freestyler April 1983
TSS 1235 F   Freestyler April 1983
TRR 1352 F   Freestyler May 1983
TRR 1354 F   Freestyler May 1983
TRR 1399 F   Freestyler May 1983
TQQ 1462 F   Freestyler June 1983
TQQ 1515 F   Freestyler June 1983
TPP 1748 F   Freestyler July 1983
TPP 1749 F   Freestyler July 1983
TPP 1828 F   Freestyler July 1983
TPP 1829 F   Freestyler July 1983
TPP 1784 F   Freestyler July 1983                   (Owner: flapjaqz)
TOO 1973 F   Freestyler August 1983
TOO 1990 F   Freestyler August 1983
TOO 2009 F   Freestyler August 1983
TOO 2033 F   Freestyler August 1983
TOO 2090 F   Freestyler August 1983
TOO 2130 F   Freestyler August 1983
TNN 2184 F   Freestyler September 1983
TNN 2258 F   Freestyler September 1983
TNN 2283 F   Freestyler September 1983
TNN 2329 F   Freestyler September 1983
TNN 2347 F   Freestyler September 1983
TNN 2353 F   Freestyler September 1983
TSS 2357 F   Freestyler 1983                 
TNN 2366 F   Freestyler September 1983
TMM 2484 F  Freestyler October 1983
TMM 2527 F  Freestyler October 1983
TMM 2684 F  Freestyler October 1983
TKK 3050 F   Freestyler December 1983   
TKK 3124 F   Freestyler December 1983
TKK 3148 F   Freestyler December 1983
TKK 3216 F   Freestyler December 1983
TKK 3339 F   Freestyler December 1983
TJJ 3483 F   Freestyler January 1984
TII 3882 F   Freestyler February 1984

           First generation Master
THH 3924 F   Master Gen 1 March 1984
THH 3937 F   Master Gen 1 March 1984
THH 3978 F   Master Gen 1 March 1984
THH 3982 F   Master Gen 1 March 1984
TGG 1440 F   Master Gen 1 April 1984
TFF 4309 F   Master Gen 1 May 1984
TEE 4497 F   Master Gen 1 June 1984
TDD 4599 F   Master Gen 1 July 1984

           Second generation Master
T 07844754 M   Master Gen 2 July 1984
T 08844880 M   Master Gen 2 August 1984
T 08844940 M   Master Gen 2 August 1984
T 08844949 M   Master Gen 2 August 1984
T 0884498? M   Master Gen 2 August 1984
T 08845160 M   Master Gen 2 August 1984
T 08845168 M   Master Gen 2 August 1984
T 09845565 M   Master Gen 2 September 1984
T 10845840 M   Master Gen 2 October 1984
T 10845931 M   Master Gen 2 October 1984

           Third generation Master
84086409    (chrome plated finish)

           First generation Sport
TEE 0083 HS      83 Sport Gen 1 June 1984
TDD 0196 HS    196 Sport Gen 1 July 1984
TCC 0224 HS    224 Sport Gen 1  ??  1984
     
        Note slight differences between the gen 1 sport vs. gen 2

           Second generation Sport
T 08840459 S 459 Sport Gen 2 August 1984

                                                Mid 80’s serial numbers:

    Serial numbers will start with the following digits, no model information contained in most of these serial numbers.

  85 : 1985               
Example:  8511   1985 Haro (85), made in November (11)  sold as an 86 model
Example:  8508   1985 Haro (85), made in August (08)
     
  86 : 1986               
Examples would be similar to the 85’s above

  87
      1987
Examples again the same as 85-86,
http://img692.imageshack.us/img692/9413/87feb.jpg

  H88 : 1988
     
  L89 : 1989            (taken from a Shredder)
  L89 : 1989            (from a Haro Group 2)

                                                        90’s Haro Serials:

  More specific model information in serial numbers starts, but not for all models.  Month codes not always clear from now on.

  HR900 : 1990        (taken from a Sport Basher model, location: bottom of frame at the rear of the bash guard tubing)
  HR900 : 1990        (bashguard Master)
  S900 : 1990          (taken from a Master Air/Basher model)
  1-C   L9001 :  1990 Haro Group 1c, January build

  A910 : 1991          (taken from a Sport Basher)
  A91H : 1991          (taken from a Sport Basher)

  CO1271           1992 Haro Group 1 Race Technique (sold as a frame only)
       
  001049            1992 Haro Group 1 Race Technique 
         
KH3K : 1993    1994 model  (late build date, off of Megatube MX)

  KTI4 : 1994    1994 Group 1 Ti
  CI4B : 1994    1994 Group 1 Ci   (Stickers/parts made this a 1995 model)
  KH4G : 1994    1995 Master (Stickers/parts show this being sold as a 1995)
  SI4E : 1994    1994 Group 1 Si

  WF95 : 1995          (taken from a Sport w/bashguard)
  WF95F : 1995          (taken from a Sport w/bashguard)
  TIKH5J : 1995    1996 Haro Group 1 Ti

  DX-K6A0 : Jan. 1996   1996 Shredder Deluxe (DX)
  DX-KL60 : Dec. 1996   1997 Shredder Super Deluxe
       
  K6K0 : Nov. 1996       1997 Haro Group 1 Ali
  TIK6F : June. 1996     1997 Haro Group 1 Ti (stickers/parts make this a 1997 model year)
  WF96E : May. 1996    1996 Haro Super Blammo
  A601 : Jan. 1996     1996 Haro Basher     
  HR-K6J : 1996    1997 Haro Zippo (First year for Zippo in 97)
       
  KH7H : 1997         (taken from a Revo)
  GH7L : 1997          (taken from a Cozmo)
  KH7F : 1997          (same framestyle as the Cozmo above, but with the different starting digit must be the Shredder model as both shared
                                                            the same exact frame from 1997 through 1999)

  KH8D : 1998         (taken from a Revo, stickers/parts made a 1999 model)
  ZI-J8F0 : 1998 Group 1 Zi
  ZIL8L : 1998 Group 1 Zi
      KH7L5618 : 1998 Blammo
               *** 99+ Model abbreviations appear in all serials ***

  RO L9 : 1999   1999 Revo
  ZOL9 : 1999    1999 Zippo
  ZI-L9 : 1999    1999 Zippo 
  ZI-L9 : 1999    1999 Group 1 Zi (confirmed by stickers)  yes same # as the Zippo but two radically different frames at least
  54J9J : 1999    1999 Mirra 540 Air
  MRJ9 : 1999    1999 Master  (location: bottom bracket)

                                                2000+ Serial Numbers:

Serial number will contain a model abbreviation and year/month within the first 5 or so digits.
  Year codes interchange month/year, year/month with no blatantly discernable pattern.
   As an example you could possibly have 2 of the same exact bikes, we’ll use an 03 Function 3 (F3) for example
   One serial could read  -   F3W3
   While the other could read  -  F33W
No difference, same year same model just an oddity seen in the later serials.

  T2-LOGO : 2000     Out of the TR2 line of bikes
  T2 LODO : 2000     ditto
  H008 : 2000        (taken from unknown model Backtrail)
  BPG0 : 2000    2000 Backtrail Pro
  SD-LOGO : 2000     2000 Shredder  (location: bottom bracket)
   
  ZPW1 : 2001     2001 Zippo
  MPJ1 : 2001      2001 Mirra Pro  (some Blammos seen with this same serial)
  B2S1C : 2001     2001 Backtrail X2
  B1S1D : 2001     2001 Backtrail X1

  RVW2 : 2002     2002 Revo
  21I2 : 2002       2002 TR 2.1
  SDW2F : 2002      2002 Shredder     (location: bottom bracket)
  SDW2C : 2002      2002 Shredde[img]r     (location: bottom bracket)
  B3S2 : 2002 Backtrail X3   (location: bottom bracket)[/color[/img]
       
  F3W3 : 2003     2003 F-Series  F3
  F2W3 : 2003     2003 F-Series  F2

  Z20P4 : 2004    2005 Backtrail Z20 because of color/parts

  M54S5 : 2005    2005 Mirra 540 Air
  XOP5I : Sept. of 2005 Backtrail X0
  X3S5H : Aug. of 2005 Backtrail X3
  X12P5J : Oct. of 2005 Backtrail X1/X2
  R16W5K : 2005    2005 Nyquist R16  [color=red](location: bottom bracket)
  X1W6 : 2006     2005 Backtrail X1
  SPW6H**** : 2006 Haro Sport
  SPH6L0012 : 2006 Haro Sport

                                        2005+ Serial numbers

  Have now seen another difference, but I cannot find the post it was in!!
  Instead of the date code directly following the model abbreviation Iam fairly sure the date code was another 2 digits past where it should beat If I find the info again, this will be updated.

  FPOW7G : 2007    2007 Forum Pro

                                                Miscellaneous

Some Quick Reference Model Abbreviations:

  RV = Revo
  RO = Revo
  ZO = Zippo
  ZP = Zippo
  ZI = Zippo
  MR = Master
  M54 = Mirra 540 Air
  54 = Mirra 540 Air
  MA = Mirra 540 Air
  MP = Mirra Pro
  MF = Mirra Flair
  SD = Shredder
  CZ = Cozmo
  B3 = Backtrail X3
  X3 = Backtrail X3   (same for X1, X2, etc)
  F2 = F-Series  F2   (same for F3, F4, etc)
  Z20 = Backtrail Z20
  21 = TR 2.1   (same for 2.2, 2.3, etc)
  N1 = Nyquist One
  FS = 04 retro Master Freestyler
  FPO = Forum Pro

 
American made Haro serial numbers and view of the stamping:
  (Sent in by Duke 01)
  Noticeably different from the normal factory stampings found on the bottom bracket (will post an example up next time I'm home), I believe only to be found on actual full chromoly American made "Pro" frames.

  H00864 :  Backtrail Pro 
  H00945  :  Mirra S351 
Mirra S351 serial on the right side dropout.

Haro color names:
   Starting with 1999+ and by no means a complete list

Deep Red
Ruby Red
Absolute Red
SG Blood Red
SG Rust
Fire Red
Blood Red
Satin Orange
Mango
Tangerine
Yellow
Cat Yellow
Mustard
Fool’s Gold
Sand
X-Yellow
Satin Electric Green
Loogie
Candy Green
Pearl Green
Chromeolive
Dark Green
Light Green
Cayman Green
GI Joe Green
Army Green
SG Olive
SG Chocolate
Champagne
SeaSpray
2Blue
Y2Blue
Y2Blue Team
Ano blue
Ice Blue
Sky Blue
MiraBlue
SuperBlue
Navy Blue
Translucent Blue
SG Blue
Gloss Black
Pearl Black
SG Black
Charcoal
Clay
Putty
Off White
White
Pearl White
Silver
Silver Team
SG Grey
SG Lite Grey

Not necessarily a color but:

Chrome Plate
Ball Burnished
Scotch Brite (similar to ball burnished)
Raw (clearcoated steel)

  Thanks to Brian P for the info he pulled from Vbmx and thanks to Hobbes12 because otherwise I would have put off making this list up even longer and thanks as well to Duke 01 for sharing pics of the American made Haro serial number.

More serial number yank thanks:
    NorCal74                           mrice23                      streetrod231
    Lo0nEy_To0nEs                RadicalRick                    nealsky
    austin1990sc                    Specialb                         brindle
    tiggy1190                          SPOAlowairchamp          PITBULL
    skywayray                         jimmybills                     ReactorSix
    harobmxer                        whitelx1                       AP6001
    moshrider14                     BMXDaddy                    keggerz
    dannyi714                         canoe                         Rake
    downhillmania                   haronut                        HAROGUY
    butterfieldcntryalumni    totalreason
    flapjaqz                              66StangRH         

Last edited by Fox (2012-10-04 7:50am)