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Briggs & Stratton Manufacturing Date Listing

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Model Series 5 thru 23

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Briggs & Stratton data used by permission and belong to their respective owner.
Courtesy of The Early Day Gas Engine and Tractor Association.

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This page contains information for engine Models 5 thru 23.If your engine Model is in this range, move down the page until you see your model series. The serial number shown under the Month and Year is the last serial number built in that month. If your engine Model is A thru FJ-2 go to page 1 of this listing. If your engine Model is H thru PC go to page 2 of this listing. If your engine Model is Q thru ZZ go to page 3 of this listing.

Engines are listed in numerical order

MODEL SERIES 5
MODEL SERIES 5S
MODEL SERIES 6
MODEL SERIES 6S
MODEL SERIES 8 (OLD)
MODEL SERIES 8 (NEW)
MODEL SERIES 9 (OLD)
MODEL SERIES 14
MODEL SERIES 19
MODEL SERIES 19D
MODEL SERIES 23
MODEL SERIES 23A
MODEL SERIES 23C
MODEL SERIES 23D

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MODEL SERIES 5 L-HEAD, 2.00" BORE, 1.5" STROKE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1950     124 199     299 300     1500  
1951       1750     1751       2751 2753
1952 2755   3495     3596     3696      
1953   3721 3781   3782   3832     3883    
1954 3886   3911     3946     3971 3998    
1955 4073       4098   4123 4423   4426    
1956 4447     4526                
1957     4528                  

MODEL SERIES 5S L-HEAD, 2.00" BORE, 1.5" STROKE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1949           120 164 20223 45266 67707 94901 117433
1950 130808     142203 181350 206413 235448 260167 306324 326695 369358 398806
1951 420227 437837 464593 490987 526637 559018 576298 593922 616403 650778 688763 715698
1952 754503 781341 805458 835848 877898 914835 942874 977616 1005414 1040018 1065975 1088081
1953 1106499 1127641 1138387 1155668 1174615 1194401 1206155 1216435 1232112 1261675 1290307 1322145
1954 1352759 1378130 1406799 1431303 1454782 1474084 1490431 1511206 1536896 1555956 1580116 1607138
1955 1635768 1657856 1672238 1688060 1703168 1709780 1710525 1712308 1713965 1717006 1718125 1721958
1956 1726605   1729341 1730590 1733564 1734862 1735171 1736019 1736172 1736811 1736974 1737325
1957 1737670 1737883 1738225 1738706 1739130 1740106            

MODEL SERIES 6 L-HEAD, 2.00" BORE, 2.00" STROKE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1952           1819 8831 32021 51725 70734 90025 109075
1953 141156 177635 208068 232763 259460 280679 298692 313255 325691 339895 354168 367042
1954 379563 391075 401796 414666 430061 444165 457960 463200 472557 476399 486860 493942
1955 501409 509515 519642 530148 542586 561282 565670 569002 571756 575725 580440 584220
1956 590681 597571 602225 609705 614153 623205 625384 629912 634147 635931 640260 641752
1957 645240 647204 652418 655624 658235 660536 661036 661636        

MODEL SERIES 6H L-HEAD, 2.00" BORE, 2.00" STROKE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1950 1788   6223 6234 7286 8903 10848 11763 11826 12528 15656 17010
1951 24033 26392 31278 33802 34323 36187 37689 39009 39135 41482 43525 47305
1952 51882 56810 59423 62709 66616 71310 72350 73380 74413 74437 75340 75358
1953 75372   75384       75397       75399 75403
1954   75406 75409 75410                
1955       75910                

MODEL SERIES 6S L-HEAD, 2.00" BORE, 2.00" STROKE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1949           204 208 3805 9100 30099 36629 46387
1950 58248 64546 72361 77138 101186 123249 127290 152739 166865 192466 200004 217051
1951 232642 261056 280603 297547 307389 322283 332724 359462 376563 392375 405719 418030
1952 432055 449582 475525 491017 503206 523413 537998 542561 555870 582861 596762 610780
1953 629985 640973 648837 658604 668586 672700 677998 683976 688674 699389 707769 421600
1954 764751 750424 760663 773977 786349 799570 807837 821223 831002 844662 855300 867146
1955 878114 892660 913645 927344 938038 948805 949297 949810 950159 951902 953591 956598
1956 960378 964606 967373 971059 973790 976529 976683 977961 978627 978633 978811 979210
1957 979211 980161 980834 981195 982037 983296 984394          

MODEL SERIES 8 ( OLD ) L-HEAD, 2.25" BORE, 2.00" STROKE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1949               101 102 795 2091 5024
1950 5114 6117 8890 13489 16087 19610 27754 30905 32185 39554 46425 53292
1951 60895 66824 80879 89120 100775 110609 117603 129349 141926 153455 160937 170536
1952 184716 192475 204001 216422 230892 234928 235273 236325 239672 239923 239934  
1953 239334     239939                

MODEL SERIES 8 ( NEW ) L-HEAD, 2.25" BORE, 2.00" STROKE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1952             244448 256169 266905 278903 287241 301950
1953 317741 325579 341111 353141 368084 381172 390211 399151 407345 416116 426808 433670
1954 445877 451491 464603 478099 489680 505141 517230 524006 534120 544154 554705 562242
1955 569533 579022 593185 613313 630521 649181 656478 662461 666478 670926 675793 682621
1956 688727 697978 707654 714163 725711 732556 737897 743170 745083 748058 752114 753322
1957 757202 760014 764953 767697 771336 772974 772990 773116        

MODEL SERIES 9 ( OLD ) L-HEAD, 2.25" BORE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1948               300 1851 2950 3299 5026
1949 6654 7931 9403 10521 11957 12326 13856 14417 14854 15255 15887 16789
1950 18250 19341 19950 21551 24722 27449 28397 29923 32095 33809 36430 36826
1951 41296 43835 46115 49645 52891 56605 57894 60348 62213 65134 68092 70999
1952 75774 78932 80351 82063 84776 87583 89950 91319 92806 95569 96566 97234
1953 99518 100677 104897 106195 109023 110660 112079 113027 113638 114555 115515 116606
1954 118109 119089 120674 121316 122627 125965 126402 128847 129489 131584 132734 134033
1955 135801 136748 139227 139278 142837 143464 145853 145887 147811 148927 150315 151579
1956 152916 154735 157278 158945 160593 160596 162020 163494 165248 165399 166430 166881
1957 168693   170229 172121 174367 175839 176215 176907 178508   178532 178533
1958 580302 581771 583121 583426 584841 585056 586238 587911 588174 589741 590132 591322
1959 591473 592873 593937 595202 595583 597129 598531 599156 599243 599746 600179 601091
1960 601543 601578 602640 603145 603296 603976 604331 604773 604773 605429 605470 606249
1961 606375 606726 607294 607792 608230 608257 608668 608669 609313 609335 609335 609736
1962 610199 610368 610745 610780 612990 612990 END          

MODEL SERIES 14 L-HEAD, 2.625" BORE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1948     8185 11501 15940 18725 21868 26648 28285 30035 32725 34573
1949 37295 38986 41264 42858 45201 47187 48701 51321 52477 54317 55529 56875
1950 56875 58065 58885 61329 63451 65639 68474 70654 73384 76570 78333 83309
1951 86980 89655 92783 94681 99173 101543 105679 111266 114562 119009 122348 124004
1952 125072 127237 130411 132841 136129 139098 142519 146509 150995 154736 157977 162319
1953 165530 170775 173344 177388 182374 186587 190123 194510 196493 197837 200302 202250
1954 205998 209367 213132 218520 221783 225864 227182 230840 233002 236573 238393 241414
1955 245743 250738 258022 263924 265930 270690 271988 280043 282910 288133 289382 294808
1956 299852 306842 310661 316003 318988 322456 325122 329471 333165 337803 340959 342799
1957 346128 348594 351909 356417 359446 363358 366290 369424 371950 372655 372663 372664
1958 580493 583530 587067 589309 593189 596015 597056 599723 601836 603107 605199 606894
1959 608139 609907 612123 614521 618002 620508 622658 624519 625195 627123 628434 630212
1960 630872 632671 634104 635255 636406 638165 638741 639746 640496 641209 642124 641711
1961 643596 644400 645097 646394 646967 648886 649250 649994 651199 651635 651807 652844
1962 653538 654575 655443 656911 657626 658651 659051 659684 660585 661319 662421 663492
1963 664567 665493 666348 666374 667747 668290 668537 668836 668836 668992 END  

MODEL SERIES 19 L-HEAD, 3.0" BORE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1957 684 748 1001 1808 1922 2985 3379 4484 4980   5180  
1958 580175 580738 582114 583788 585806 586709 588094 588878 589733 591324 591857 592975
1959 594054 595879 597113 598759 600391 601441 602522 603522 603702 605427 606213 608177
1960 608600 610706 612072 613967 616132 617652 618283 619618 620789 622640 624682 625612
1961 626846 628468 630562 636087 634819 636087 636352 636845 640324 641558 644400 645314
1962 648676 650591 654477 656114 658189 659743 661216 664947 668965 671834 676524 678186
1963 679206 679267 681190 681936 682266 684055 684476 684687 685343 686072 687216 688473
1964 688953 689255 689880 690819 691158 691843 692898 693433 694212 695000 696182 696692
1965 697384 698562 698888 700134 701253              

MODEL SERIES 19D L-HEAD, 3.0" BORE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1963       776 2051 3221 3767 7662 7964 9636 10320 10578
1964 11994 12247 13495 14872 16604 17243 17528 18379 19440 21245 22172 23643
1965 24118 25276 26225 27147 27770              

MODEL SERIES 23 L-HEAD, 3.0" BORE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1949 203 3923 7313 10118 13382 18443 18543 21430 22928 24314 25926 27353
1950 27353 28277 30208 31082 34107 37373 41358 44029 47663 49958 54509 57104
1951 59510 62276 65459 70636 76093 82155 87341 94644 101670 105323 108310 110998
1952 114755 118778 122278 126938 131293 135796 141324 144937 148991 154444 158336 162418
1953 165769 167810 169955 172248 175405 180826 185798 188559 192651 195043 197531 204034
1954 206188 207930 213322 216294 219140 224294 229355 231985 235477 238724 240305 242085
1955 244683 247152 250782 256831 260250 266638 270142 274415 277171 281185 284334 286992
1956 289138 291879 297218 301508 304869 308850 313071 317790 320660 324288 324825 329662
1957 330162 330453 END                  

MODEL SERIES 23A L-HEAD, 3.0" BORE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1956                   325767 327181 331862
1957 333788 336679 340502 342589 348839 354047 359306 363056 367070 367135 367176 367326
1958 581961 585171 588148 591275 595379 600569 604929 609113 613685 617210 621291 625278
1959 629003 630985 634771 639704 647659 653967 657484 661170 663047 664957 667692 669680
1960 673247 676329 680374 683568 688834 693550 696541 699794 702252 704655 707325 710887
1961 712436 714682 717442 720242 724565 729011 730995 733601 736365 739462 741552 742834
1962 745830 747877 750710 753239 755298 758753 760976 763555 765951 768990 771659 774802
1963 779055 782780 784913 788666 792107 794526 796764 799100 803173 806469 808863 811716
1964 815250 817118 820678 823646 826676 828668 828968 832070 835184 838185 842478 846283
1965 848067 851731 854001 850516 859399              

MODEL SERIES 23C L-HEAD, 3.0" BORE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1961         5274 7730 8345 8921 9445 10103 10988 11881
1962 12445 13271 13814 15214 16209 18147 19065 21183 22712 24616 25213 26343
1963 28068 29122 30818 31272 31472 31522 31542 31542 END      

MODEL SERIES 23D L-HEAD, 3.0" BORE
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1963       1116 2225 4719 6181 8787 12912 15697 18880 21912
1964 25954 29788 33205 30473 40137 45227 47922 53857 57287 62748 65039 67631
1965 72310 75149 78971 82964 87201              

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Last modified:  08 / 03 / 2005