NOS Replacement PISTON + SLEEVE EARLY KB 3.5 .21 NITRO FUEL MARINE ENGINE .750”

  • 05

$29.04 (-40%)

51

  • Compatible Fuel Type: Nitro & Glow Fuel
  • Age Level: 12-16 Years
  • Features: High RPM Exhaust Port Timing
  • Compatible Vehicle Type: Airplanes
  • Brand: KB
  • All returns accepted: ReturnsNotAccepted
  • Displacement: 3.5ccm
  • Compatible Scale: 1:8
  • Compatible Brand: For K&B
  • Condition: New
  • Type: 2-Stroke Engine
  • MPN: Does Not Apply

    • New, Old Stock – replacement piston and sleeve for – early – K and B 3.5cc nitro fuel engines. This looks to be a high-timed version with tall exhaust ports, for use with higher nitro fuels and tuned pipes. I think that the high-timed versions were for intended for marine, ducted fan and r/c car use – but not certain. Should work in all early KB 3.5’s which took the .750” OD thin sleeve; later engines took a .765” OD sleeve.
    Please measure yours before buying – I don’t accept returns.
    This piston and sleeve has never been used. Please check the pictures of actual item.
    Buyer pays $6 shipping. Shipping to USA only. Thanks.

    Main Menu