Production changes by year, serial number and event
B9000001 – First Series I produced. 1494cc engine. 06/14/59
B9000277 – Steering wheel height increased.
B9001697 – Modified seat runners added to prevent misaligned locating pegs.
B9006404(?) – Paint code begins to appear on data tags somewhere around this time.
B9005504 – Steering wheel is reduced in diameter.
B9011592 – Last Series I produced. 09/09/60
B9100000 – First Series II produced. 1592cc engine. 09/12/60
B9101331 – Grease gun removed from tool kit.
B9101800 – New mainshaft in gearbox. 12/60
B9103533 – Harrington Alpine production begins about this time. 03/61
B9103936 – Anti squeel front break shims added. 3/61
B9104616 – Increased sweeping area on windshield wipers of RHD vehicles. 11/61
B9104783 – Increased sweeping area on windshield wipers of LHD vehicles. (US & Canadian) 11/61
B9106448 – Return valve added for timing chain lubrication. 1/62
B9108012 – Increased sweeping area on windshield wipers of LHD vehicles. (Other) 11/61
B9107291 – Shape of holes in steel wheels change.
B9107388 – New hub cap design introduced.
B9108158 – Axleshafts change on LHD Alpines with steel wheels to fine splines.
B9108232 – Axle shafts change on LHD Alpines with wire wheels & OD to fine splines.
B9108282 – Axle shafts change on LHD Alpines with wire wheels to fine splines.
B9108274 – Axel shafts change on RHD Alpines with wire wheels & OD to fine splines.
B9108372 – Axle shafts change on RHD Alpines with steel wheels & OD to fine splines.
B9108397 – Axle shafts change on LHD Alpines with steel wheels & OD to fine splines.
B9108431 – Axle shafts change on RHD Alpines with steel wheels to fine splines.
B9108686 – Harrington Le Mans production begins about this time. 10/61
B9112484 – Last car built at Bristol Siddeley production site. 03/30/62
B9115020 – First known car built at Ryton-Upon-Dunsmore production site. 02/12/62
B9117831 – Series ‘C’ Harrington first introduced at Earls Court October ’62. (S/N not accurate)
B9119956 – Last Series II produced. 02/08/63
B9119955 – Series ‘C’ Harrington production stops. Feb ’63. (S/N not accurate)
B9200000 – First Series 3 produced. 01/21/63
B9204718 – Single twin choke Solex carburettor replaces the twin Zeniths.
B9205864 – Last Series 3 produced. 10/18/63
B9400000 – First Series IV produced. 10/27/63
B9407936 – Last non-syncronized transmission and 8 digit serial number. 07/31/64
B94100000 – Starting crank handle is changed.
B94100000 – First fully syncronized transmission and 9 digit serial number. 08/03/64
B94100352 – Last GT to use the veneered ply dash. New bakelite veneered dash introduced.
B94102173 – Aluminium wheel trim finishers replace chrome beauty rings.
B94103022 – Square corner doors and bonnets introduced.
B94104172 – New convertible top with velcro introduced.
B94104334 – Last car to use the old style convertible top.
B94104470 – Last Series IV produced. 08/13/65
B395000000 – First Series V produced with new 1724cc engine. 08/16/65
B395000207 – Tail light units change from inside screw to outside screw.
B395000596 – Lifting jack is changed from part number 12011342 to part number 5220473.
B395000691 – First square corner boot lid on a Series V ST.
B395000713 – First square corner boot lid on a Series V GT.
B395000704 – Modified clutch plate.
B395003169 – Nylon fuel pipe.
B395004057 – 7″diameter brake servo introduced. SP2228
B395004386 – First Alpine to have the cable bonnet release. 3/66
B395012220 – Oil pressure releif valve change.
B395012220 – Oil pressure releif valve change. 4/67
B395013608 – Pinion seal changed from P/N 5220439 to 5221256.
B395016692 – Bumper mounted rear license plate lights first appear. 8/67
B395017309 – First 25 spline non-overdrive transmission. 9/67
B395017327 – First 25 spline overdrive transmission. 9/67
B395017900 – Non peaked headlight rims are used until end of production. 11/67
B395019122 – Last Series V produced. 01/26/68