Cool information

Home > Harley serial # and model breakdown

Ever wonder what all that Harley alphabet soup means?

Here is a quick guide to help you out and impress your friends with
all your new found smarts!

Scroll down for breakdown by model name

First character:

G - Servicar three wheeler, 1932 to 1972

E - Overhead valve 61 cubic inch "big twin" (Engine/trans separated)

F - Overhead valve 74 or 80 cubic inch "big twin"

K - Side valve 45 and 55 cubic inch sports bike that replaced the WL in

1953 and was replaced by the Sportster in 1957. It had many design

features that were carried over to the Sportster.

U - Side valve 74 or 80 cubic inch "big twin"

V - Side valve 74 cubic inch made prior to 1936

W -Side valve 45 cubic inch made 1934 to 1952

X - Sports and special construction. Applied to 1918-1922 opposed twin

Sport, 1944 military opposed twin, and 1957 to present Sportster.

There were others, such as the J series (a very nice looking bike that was about the hottest thing around in the 20's) but you're not likely to see them in daily use anymore.

Second character:

L - high compression. Omitted on low compression early models, and not indicative of compression on current models.

Remaining characters:

Model descriptions, e.g. WG - Wide Glide. Some generalizations:

A - Military (Army) version (except GA, Servicar without tow bar)

B - Battery start (early models), Belt drive (some later models).

C - Classic, Competition, Custom, various others meanings.

D - Dyna, the newest frame and engine mount design.

E - Electric start

F - Foot shift (when the standard was hand-shift)

H - varied between High performance and Heavy duty. The early FLH for

example produced 5 more HP than the FL and was used primarily for

touring and sidecar applications.

LR-Low Rider (though many Low Riders don't include LR in the model ID)

P - Police version

R - Rubber mounted engine (some models) racing version (other models) e.g.

the FXR is a lowrider with rubber mounted engine, WLR is the flat

track racer that was very hard to beat in the 30's, 40's, and 50's.

ST-Soft Tail

S - (without following T) Sports version e.g. FLHS is an FLHT without the

touring package.

T - Touring

WG-Wide Glide


E basic version of the Big Twin

EL the E with more power

F basic, enlarged from 61 to 74 Big Twin

FL F with more power

FLH still more power built as Pan Shovel and Evo

K side valve middleweight circa '52

KK tuned version of K

KH the K stroked from 45 to 54

KHK tuned version of the KH

XL basic Sportster

XLC stripped Calif. model

XLH higher performance XL '58

XLCH high performance XL (w/ kicker)

FX original Super Glide form F and X parts

FXE original Super Glide form F and X parts with electric start

Here is breakdown by model name


FX: Superglide, Kick start
FXB: Sturgis Belt (80,81&82)FXDXT: Super Glide T-Sport
FXE: Superglide Electric Start
FXEF: Fatbob
FXLR: FX Lower Rider/Evolution
FXR: Rubber Mount Super Glide

FXRDG - Disc Glide

FXRP - Police or pursuit - Defender
FXRS-CON: FXR Sport Convertible
FXRS-SP: Low Rider Sport Edition
FXRT: FXR Touring

FXS: Low Rider/Shovelhead
FXSB: Low Rider Belt


FXD: Dyna Super Glide

FXDB: Dyna Sturgis (1991)

FXDC: Dyna Super Glide Custom
FXDG: Dyna Glide/Sturgis
FXDL: Dyna Low Rider
FXDS-CON: Dyna Convertible
FXDWG: Dyna Wide Glide
FXDX: Dyna Super Glide Sport

FX: Superglide, Kick start


FL: 4-Speed Dresser
FLH: 4-Speed Electra Glide S = Sport
FLHS: Electra Glide Sport
FLHT: Electra Glide Standard
FLHTC: Electra Glide Classic

FLHTCSE: Screamin Eagle Electra Glide

FLHTPI: Electra glide police model
FLHTCUI: Ultra Classic Electra Glide
FLT: Rubber Mount Dresser
FLTC: Rubber Mount Dresser Classic
FLTCU: Rubber Mount Dresser Classic Ultra
FLTR: Road Glide
FLTRI: Road Glide EFI
FLTRSEI: Screamin Eagle Road Glide


FLHPI: Road King police model

FLHR: Road King
FLHRCI: Road King Classic


FXST: Softail Standard
FXSTB: Night Train

FXSTBI: Night Train EFI

FXSTC: Softail Custom
FXSTD: Softail Deuce
FXSTS: Springer Softail
FXWG: Wide Glide

FLST: Heritage Softail
FLSTC: Heritage Classic
FLSTF: Fat Boy

FLSTFI: 15th anniversary Fat Boy

FLSTN: Nostalgia and 2005 Softail Deluxe
FLSTS: Heritage Springer

FLSTSC: Springer Softail Classic


XL: Sportster 883
XL883: Sportster Hugger
XL883C: Sportster 883 Custom

XL 883L: Sportster (specifically designed to fit smaller riders)

XL883R: Dirt track-inspired
XL1100: Sportster 1100
XL1200: Sportster 1200
XL1200C: Sportster 1200 Custom

XL1200R: 1200 Roadster
XL1200S: Sportster 1200 Sport
XLCH: 4-Speed Sportster, Kick start

XLCR: Cafe Racer 1000
XLH: Sportster 883
XLH883: Sportster 883 Hugger

XLH883R: Sportster 883R
XLH1200: 1200
XLH1200S: Sport
XLS: 4-Speed Sportster Roadster
XLX: 4-Speed 1000cc Ironhead
XR1000: XLH with XLR Heads (XR750 heads - completely different)

It all started with a great idea and a little hard work. Today we're proud to provide quality products direct to your doorstep through an experience you'll enjoy. And most of all, we hope you'll enjoy the products as much as we do. Call or email us today to let us know what you think. We'd love to hear from you!