BSA WM20 Used Engine Spares

This is a special page, solely listing spares for BSA WM20 Engine parts.

Parts are genuine unless stated reproduction.

Spares for other WW2 Military motorcycles can be found here.

COMPLETE EXHAUST LIFTER ASSEMBLY .

GOOD CONDITION READY TO FIT .

EXHAUST TAPPET HEAD. 66-1498.

GOOD CONDITION -HAS SEEN LITTLE USE .

ENGINE CRANKCASE BOLTS X 3.

GENUINE 3 BOLTS FROM BSA .

COMPLETE EXHAUST LIFTER ASSEMBLY.

CORRECT ARM , SOME WEAR ON SPINDLE THROUGH USEAGE .

STANDARD PISTON WITH RINGS , PIN & CIRCLIPS .

A USED PISTON THATS USEABLE .

TIMING COVER – 66-1919.

GOOD USED GENUINE ITEM- GOOD OIL FEED QUILL.

WW2 CUT AWAY DISPLAY ENGINE , 1940,THAT HAS MOVING PARTS .

A GREAT MAN CAVE PART ! TAKES HOURS TO DO IT !!

COMPLETE CRANK WITH ROD -TO REBUILD – NICE FLYWHEELS .

WAS RUNNING BUT GETTING NEAR TO REBUILD TIME .

TIMING COVER WITH CORRECT CAP & GOOD QUILL.

EARLY WW2 AND MANY DESERT MACHINES USED THESE .

ENGINE – COMPLETE WM20 66099- CONTRACT C12424- 1942.

COMPLETE & RUNNING - I HAD A VIDEO CLIP OF HER RUNNING . MATCHING CASES .

WW2 BOTTOM END WITH CRANKSHAFT, CON ROD & TIMING SIDE PARTS .

MATCHING CASES , WAS RUNNING , WORKSHOP PLATE ON SIDE .

TIMING COVER – LATE WAR – SMALL BSA SCRIPT.

AN UNCLEANED AND UNPOLISHED COVER.

WM20 STAMPED CRANKCASES – A PROPER PAIR – POST WAR DATED 1955.

WOULD HAVE BEEN USED BY A WORKSHOP AS REPLACEMENT ENGINE .A GOOD PAIR

MAGDYNO IDLER PINION -66-2250.

USED & RE USEABLE, CLEAN AND FIT .

OIL PUMP FILTER – BRASS – 66-2623

USED IN GOOD CONDITION .

N.O.S EXHAUST LIFTER LEVER . 66-1436.

SOME STORAGE MARKS -GOOD SPLINES .

N.O.S EXHAUST LIFTER BUSH. 66- 1434.

STILL IN PRESERVATIVE .

N.O.S INNER PRIMARY TO CRANK CASE BOLTS X 3.

LAST BOX OF GENUINE BSA BOLTS WITH HOLES TO WIRE THEM ON .

CRANKCASE SCAVANGE COVER . 66-2611

A GOOD UNDAMAGED COVER.

N.O.S EXHAUST VALVE LIFTER BUSH.

STILL IN PROTECTIVE GREASE .

SET OF 10 M20 HEAD BOLTS .

A USED SET WITH SOME WASHERS .

BSA M21 HEAD BOLTS.-8.

LONGER THAN M20.

CRANKCASE OIL PIPE ADAPTORS.

PAIR OF USED ENGINE ADAPTORS.GOOD CONDITION.

PAIR OF VALVE SPRING COLLARS – 66-221.

A GOOD CONDITION ORIGINAL PAIR.

MAGDYNO IDLER PINION-66-2250

A GOOD USED PART .

WW2 TIMING COVER WITH SMALL BSA SCRIPT.

ITS BEEN BEAD BLASTED & IN GOOD CONDITION .

BSA ENGINE RIVETS – 27-1239.

UNOPENED BOX - ONE ONLY.

ENGINE TIMING PINION- 65-692.

USEABLE PINION USED NOTHING BROKEN .

OIL PUMP DRIVE SPINDLE. 66-2620.

BEST CONDITION - LITTLE USED DRIVE SPINDLE.

EXHAUST LIFTER SPINDLE – 66-1435.

USED & RE USEABLE.SPLINES LOOK GOOD .

N.O.S CAMS -65-2420- pair.

CLEANED AND IN BEAUTIFUL CONDITION .

N.O.S ENGINE DRIVE SIDE OIL FLINGER PLATE .-24-2113.

GOOD UNUSED AND WELL STORED .- THE ODD BLEMISH .

INLET VALVE 66-235

USEABLE USED VALVE .

PAIR OF CAMS 65-2420.

NICE CONDITION PAIR .

ENGINE TIMING PINION . 65-692.

A USED PINION , STILL USEABLE .

N.O.S EXHAUST TAPPETS .

EXCELLENT ,STILL GREASED .

SET OF VALVES -USED -INLET AND EXHAUST.

A USEABLE PAIR OF ORIGINAL VALVES .

ENGINE STRAPS TO HOLD MAG/DYNO.

HAS BOLT AND TRUNNIONS -READY TO CLEAN UP AND RE USE .

N.O.S EXHAUST TAPPET. 66-1498.

STILL GOT PRESERVATIVE ON IT . OFTEN BROKEN.

BSA WM20 N.O.S CRANKCASE PLUGS .

REMOVED IF FITTING EARLY OIL PRESSURE INDICATOR.

BSA WM20 OIL PUMP.- 66-2588

GOOD , WORKING AND NO CRACKS TO BODY.

ENGINE SHAFT DISTANCE COLLAR. 66-660

USED -GOOD CONDITION FOR AGE .

OIL PUMP SECURING BOLTS-65-2604- PAIR.

USED ,READY TO USE PARTS.

OIL PUMP FIXING BOLTS , 65-2604

GOOD USEABLE ORIGINAL CONDITION .