Malossi Oversize Replacement Piston 70ccm (Ø 47.4 mm) – complete with 12 mm piston pin

When your 70cc Malossi cylinder needs fresh internals, this piston set Malossi 70ccm 47.4mm is made exactly for that: an oversize replacement piston for 70cc Malossi cylinders with 47.4 mm diameter. It fits all common 70cc Malossi cast iron sport cylinders and is therefore ideal for rebuilding your sport setup reliably and cleanly – e.g., on popular scooters such as Yamaha Aerox R 50, Vespa LX 50 2-stroke or Aprilia SR 50 (depending on the installed cylinder/setup).

Product Features / Scope of Delivery

• Oversize replacement piston for 70cc Malossi cylinders
• Piston diameter: 47.4 mm
• Piston pin: 12 mm
• Suitable for all common 70cc Malossi cast iron sport cylinders
• Scope of delivery: 1x piston, 2x piston rings, 1x 12 mm piston pin, 2x piston pin clips

Details / Comparison Numbers (OEM)

OEM no. for comparison purposes:

• 34 7036.40
• 347036.40
• 34703640

Additional terms / search terms: piston clip, piston lock, clip, piston locking, locking clip

Compatibility (Vehicles)

Fits many vehicles – e.g. models from Aprilia, Vespa and Yamaha – provided a matching 70cc Malossi cast iron sport cylinder (Ø 47.4 mm) is installed. Extract from the vehicle list:

• Aprilia: Habana 50 Morini engine; MX 50 AM6 engine; Scarabeo 50 2-stroke (1999-2009); Sportcity Street 50 2-stroke; SR 50 Stealth LC water; Gulliver 50 LC water; Amico 50 Sport; SR 50 LC water (1994-1997); SR 50 Street LC water; SR 50 AC air (1994-1997)
• Generic: Iron 50; Ideo 50; Pandora 50 2-stroke; X-enduro 50; Race 2 GT 50 2-stroke; Vertico 50 2-stroke; ROC 50; XOR 50; Race GT 50; Toxic 50
• Gilera: H@K 50 Morini engine; Ice 50; DNA 50; Typhoon 50; Storm 50 (1999, 2007); RCR 50 ZAPG11D ZAPABA01 ZAPG11A (2005-2011); GSM 50 Derbi engine Morini engine; Runner 50 C14 (Year 2004 - 08 / 2005 / 1999-2004); Stalker 50 (1999); SMT 50 SM Racing (2011)
• Honda: SH 50 (1984-1996); Bali 50 SJ50; Vision 50 2-stroke; Dio G 50; SFX 50; Lead NHX 125; X8R-S 50; Wallaroo 50 PK50; SGX 50 Sky; Shadow 90 SRX90
• Hyosung: Avanti 50 without CAT; Super Cab 50; SF B 50; SF B Rally 50; SF B Racing 50; SB 50 Cab with CAT
• Italjet: Yankee 50; Jet-Set 50 2-stroke; Scoop 50; Torpedo 50 2-stroke; Pista 50; Dragster 50; Formula 50 LC water
• KTM: Quadra 50; Chrono 50; Tempo 50; Ark 50 LC water; Ark 50 AC air
• Keeway: Pixel 50; Goccia 50 (2015); Venus 50; ARN 50; RY8 50 (2008); Hacker 50; RY8 50 Evo; F-ACT 50 Racing SP from Year 2009; RY8 50 SP; RY8 50 Racing; RY8 50 Racing SP
• Kymco: Vitality 50 2-stroke; Yager 50; Fever ZX 50; KB 50; Agility RS 50; Grand Dink 50 SF10JA SF10JB; Heroism 50; Agility RS Naked 50; Top Boy 50; Super 9 AC air
• Longjia: LJ50QT-K 50; LJ50QT-H 50; LJ50QT-F 50
• MBK: X-Limit Enduro 50 (2003); Stunt 50 (2004); Booster Naked 50 13 inch; Nitro 50 (1999); Forte 50; Mach G 50 LC water; Booster 50 NG (1999); Mach G 50 AC air; Booster 50 One 2DW; Nitro 50 Naked 1PL (2013)
• Malaguti: F10 Cat. 50 (1999-2004); Yestarday 50; F10 Wap 50 CPI engine (2008); Ciak 50 2-stroke; F12 Phantom 50 AC air (2003-2007); F10 50 Jetline (1999); F15 Firefox AC air (2004); F15 Firefox LC water (2004); F12 Phantom 50 LC water (2000-2004); F12 Phantom R 50 AC air
• PGO: Tornado 50; T-Rex 50; G-Max 50; Hot 50; Big Max 50; PMX 50
• Peugeot: Metropolis SC 50; Ludix Blaster Radical 50; Ludix One 50; Buxy 50; Kisbee 50 2-stroke; Squab 50; XR6 50; Elystar 50 (2004); Reggea 50 VGA427; Ludix 2 Blaster Ice Blade 50
• Piaggio: Sfera 50 NSL1T; TPH 50 2-stroke (2011-2018); Diesis 50; Zip Base 50 (1999); Liberty 50 2-stroke; NRG 50 Extreme AC air; NRG 50 MC3 Purejet C320001; NRG 50 Power AC air; Typhoon 50 XR C19 C29; Zip 50 1st Series (1991-1994)
• Rieju: MRX 50; RS-2 Matrix 50; RS-1 Evolution 50; SMX 50; RR 50; Spike 2 50
• Suzuki: Address 50; Address 100 2-stroke; Sepia 50; Street Magic 50; Zillion 50 (1999); Estilete 50; AP 50; Katana 50 LC water (1999); Katana 50 AC air (1999)
• Vespa: ET2 50 2-stroke; Primavera 50 2-stroke; LX 50 2-stroke; Sprint 50 2-stroke; LXV 50 2-stroke; S 50 2-stroke
• Yamaha: TZR 50 R1 RR (2002-2003); Axis 50; Breeze 50; BWS 50 12 inch (2004); Neos 50 from Year 07 (2007); Zuma II 50 vertical engine; Aerox R 50 (2013); Aerox R 50 Naked (2013); Why 50; YE 50 Zest

Important for Selection

• The installed cylinder is decisive: 70cc Malossi cast iron sport cylinder with Ø 47.4 mm
• Observe the piston pin size: 12 mm