~18mm crush washer or sealing washer used in many applications including: side fill plug on 6 speed transmission on CARC models, unused lambda plug ports, and oil pressure relief valves from the 1990s until today.
2 used to seal the reservoir/tank end of the automatic transmission fluid line running to the pump on Convert and Cal2 automatics.
Side plug on 6 speed transmissions used on CARC models: Breva 1100, Griso 1100, Norge, Sport 1200, Bellagio, Griso 8V, Breva 1200, 1200 Sport 8V, Stelvio, Stelvio NTX. Also California 1400 Eldorado and Audace and MGX 21.
Sealing washer for oil pressure relief valve: Daytona 1000, California 1100 (after engine number KC014036), Centauro, 1100 Sport injected, EV (after engine number KD115983), Jackal, Bassa, California Special, Special Sport, Aluminum, Titanium, California Stone, Stone Touring, EV Touring, Vintage, Bellagio, V11 Sport, V11 Lemans, Scura, Tenni, V11 Cafe, Naked, Ballabio, Breva 1100, Breva 1200, Sport 1200, Griso 1100 and 8V, 1200 Sport 8V, Stelvio, Stelvio NTX, Breva 750, Nevada Classic, V7 Classic, V7 Cafe Classic, V7 Special, V7 Special II, V7 Stone, V7 Stone II, V7 Racer, V7 Racer II, V7 Stornello II, V7 Racer III, V7 Special III, V7 Stone III, V7 Aniversario III, V7 III Carbon Dark, V7 III Carbon Shine, V7 III Rough, V7 III Milano, V9 Roamer, V9 Bobber, Quota ES 1100 (after engine number KM011121), California 1400 Touring, California 1400 Custom, Eldorado 1400, Audace, MGX21, Black Eagle.