Spares for BSA WM20

This is a special page, solely listing spares for BSA WM20. Parts are genuine unless stated reproduction.

Spares for other WW2 Military motorcycles can be found here

Click on an image to view in more detail.

CAS WW2 MAGNETO , WORKING

LUCAS MAGNETO ,WW2 DATED , WORKING FROM BSA WM20

TAKEN OFF RUNNING BIKE ,WILL CLEAN UP . NOT REBUILT BY USWILL FIT OTHER MACHINES .

BSA WM20 BATTERY CARRIER

BATTERY CARRIER ,COMPLETE WITH GOOD LUCAS SCRIPT

THIS IS A WW2 BATTERY CARRIER WITH LUCAS SCRIPT TO FRONT PLATE DUMMY BATTERY CASE NOT INCLUDED .

w.d convoy lamps post war

PAIR OF W.D REAR CONVOY LAMPS .

nice pair to light up rear number plates.

BSA GIRDER FORKS

GIRDER FORK SET 42 ON ,COMPLETE

STRAIGHT SET OF FORKS . NOT REFURBISHED , GOOD .

wm20 oil tank filter sprung cap

OIL TANK FILTER SPRUNG CAP

complete ready to go , rare ,hard to get part

FRONT BRAKE PLATE

FRONT BRAKE PLATE ,COMPLETE,A1 CONDITION

LITTLE USED BRAKE PLATE WITH GOOD USEABLE SHOES .

bsa wm20 wd tank

PETROL TANK WITH CAP 1940-42

used throughout war and upgraded to cut off when ordered . 2nd pattern tank

m20 ww2 petrol pipe set

petrol pipe ,still showing cadmium finish , rare

ww2 size with small tap connectors , lovely finish , rare

headlight stays set x4

headlight bracket set . 4 stays .

very good used headlight set . getting hard to find genuine sets .

w.d rear convoy lamp

w.d rear convoy lamp . not ww2

nice w.d tail light. looks good on rear number plates .

m20 speedometer bracket

speedometer bracket.

good condition bracket.

m20

crankcase breather oil pipe

rare art , directs oil mist from crankcase breather towards rear chain . often missing

m20 drive set

drive set , good spring etc

used good working shock absorber set

bsa wm20 clutch cable

FRONT BRAKE CABLE , USED

good used cable

bsa magneto cable

magneto cable

good , used , magneto cable

sa wm20 spindle set ,front wheel

FRONT WHEEL SPINDLE AND HUB INTERNALS

complete set of adjusters, spacers ,spindle ,dust shields etc

WAR COMPLETE LEVER SET

COMPLETE HANDLE BAR LEVER SET ,POST WAR

TAKEN OFF BSA WM20, WILL FIT ALL 7/8" BARS

KICK START LEVER .

KICK START LEVER .

GOOD CONDITION LEVER

BSA PILLION SEAT MOUN

BSA PILLION MOUNT PLATE.

HARD TO FIND REAR SEAT MOUNT THAT WAS MAINLY USED WITH FULL PANNIER SETS

WAR ARMY NUMBER PLATE

POST WAR ARMY NUMBER PLATE .with modern tail light

these post war plates were to take the 2 number ,2 letter , 2 number w.d identification .

M20 OIL SUPPLY PIPES . RARE .

N.O.S OIL SUPPLY/RETURN PIPES ,COMPLETE

RARE FIND !! N.O.S . STORED 70+YEARS AND RUBBER FANTASTIC ,NOT PERISHED , ORIGINAL CADNIUM PLATE .

ARY COVER MATCHED SET

PRIMARY CHAIN SET VGC WITH PLUG

A MATCHED SET ,COMPLETE WITH SLIDING PLATE .

WM20 LOWER CHAIN GUARD

LOWER REAR CHAIN COVER WITH TORQUE ARM .

REALLY GOOD CONDITION PART .

Gearbox connecting bolt, rear 66-4168

Gearbox connecting bolt, rear 66-4168

Specialised adjuster bolt

Girder fork spring with scroll

Girder fork spring with scroll

Good condition, has been powder coated

N.O.S front hub felts. L.H

N.O.S front hub felts. L.H

Original grease retaining felts

Horn buttons, modern

Horn buttons, modern

These work ok, need painting as shiny

BSA complete clutch

BSA complete clutch

Good working clutch

Gear change lever

Gear change lever

Straight with good splines

Smiths military speedometer, pin drive, pre 1940

Smiths military speedometer, pin drive, pre 1940

Suitable for K.M series and de-lux WM20, fully reconditioned by Phil Woods

N.O.S gearbox oil filler plug

N.O.S gearbox oil filler plug

Replace the chewed head!

Lucas magneto suitable for BSA .To restore

Lucas magneto suitable for BSA. To restore

Turns but will need rebuild

Lucas D U 42 headlight unit

Lucas D U 42 headlight unit

Refurbished ready to paint. Fits all W.D WW2 Lucas equipped motorcycles

NOS cush drive bearing

NOS cush drive bearing

Part of engine shock absorber

Rear lifting handle

Rear lifting handle

If using long field stand, 42-45

Front mudguard

Front mudguard

Great condition

Toolbox with knob

Toolbox with knob

Good condition

1939 BSA KM20 Engine

1939 BSA KM20 Engine

Very early, September, 1939 WD engine from contract C3655

8" Lucas blackout

8″ Lucas blackout

Often seen in Malta

Pre-war KM smiths pin drive speedometer with correct cable

Pre-war KM smiths pin drive speedometer with correct cable

Prof: service, keeping original appearance

Post '42 Tank

Post ’42 Tank

With cut out

Rear stand spring

Rear stand spring

Genuine, used

7/8″ Canvas Throttle & Left Side Covers

7/8″ Canvas Throttle & Left Side Covers

Best new product on market. UK made

Late war engine, running

Late war engine, running

+20 very good condition

M42 Post War Lucas

M42 Post War Lucas

Fitted after WW2 good shell, clip & chrome rim

Front Engine Plate Set

Front Engine Plate Set

With genuine bolts

Pre war gearbox

Pre war gearbox

35-37 era heavyweight BSA

Rear wheel, complete

Rear wheel, complete

Good used condition

N.O.S engine/crank case bolts

N.O.S engine/crank case bolts

Holds primary case on and wired

Primary case set

Primary case set

Good, brass plug

Rare Complete KM Wheel

Rare Complete KM Wheel

Correct hub & brake plate spokes u/s. Had repair

Kick Starter Quadrant

Kick Starter Quadrant

Good condition

BSA 24½” & 25½” Rubber Covered Speedometer Cables

To fit up to 1942/43. For all WW2 BSA Forks. British made, won't damage speedometers

K.M style front number plate

K.M style front number plate

With new guard clamps

Rear Lifting Handle

Rear Lifting Handle

Post 1942 type

N.O.S. Fuel Cap

N.O.S. Fuel Cap

As new, chromed

Post ’42 Fuel Tank with cut off

Post ’42 Fuel Tank with cut off

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Tank Protector UK Made

Tank Protector UK Made

3 WW2 colours and dated to your machine

Timing Chest Cover

Timing Chest Cover

N.O.S. Plain type. 1941 onwards

Lucas panels with push changer switch

Lucas panels with push changer switch

Used with test switch in housing. Will make nice set

Lucas DU42 headlamp shell

Lucas DU42 headlamp shell

Bare, original anti-gas paint. Rare

Primary Drive

Primary Drive

With correct inspection cap

Drivers footrest set

Drivers footrest set

Really nice condition set

Rear Mudguard KM, Early WM and Deluxe

Rear Mudguard KM, Early WM and Deluxe

Repaired holes, sound condition, correct tailpiece original to this guard

Lucas 8" Headlight CZ 27 Amp Meter

Lucas 8″ Headlight CZ 27 Amp Meter

T Switch & Maxlight blackout mask. Will break. (no reflector)

Primary outer

Primary outer

With inspection cap

Clutch Pressure Plate

Clutch Pressure Plate

With complete nuts & ballbearing

Reproduction Front Tank Mounting Sets

Reproduction Front Tank Mounting Sets

Used to protect tanks from vibration damage. Sold as pair. Few only

Top Chain Guard

Top Chain Guard

Small hole on side hence the price

Gearbox

Gearbox

All gears located

Crank/Rod Assembly

Crank/Rod Assembly

Some surface storage rust but feels good. Very good shafts

W.D drivers saddle

W.D drivers saddle

Complete with springs and BSA hexagonal pillar bolts. Excellent

NOS Engine Bolts

NOS Engine Bolts

x 5 in pack

WM20 55481 Complete Engine

WM20 55481 Complete Engine

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WM20 Cases

WM20 Cases

Good cases. Some wear on Mag platform. Unstamped

Lucas Dynamo Bands

Lucas Dynamo Bands

40w and 60w

Timing Cover

Timing Cover

Good condition. Good quill

Crank Cases

Crank Cases

Good condition. Well marked

Front Wheel

Front Wheel

No speedo drive

Gearbox Clutch Arm

Gearbox Clutch Arm

With all fittings

Oil Tank With Lid

Oil Tank With Lid

Good, no dents on front

Toolbox, Good Condition

Toolbox, Good Condition

Had repair but good condition

BSA WM20 Good Running Engine

BSA WM20 Good Running Engine

On good +30 bore. Pulls & runs well