RCMK Parts

RCMK Crankshaft Standard length 28mm Zenoah Redline CNC Mod Piston 28.5cc, 29.5cc, 30.5cc
RCMK Crankshaft Standard length 28mmZenoah CNC Modified Piston 28.5cc, 29.5cc, 30.5cc

The RCMK Crankshaft Standard length 28mm "R254" crank and connecting rod material is 20CrMo as same piston pin meterial. it is not common steel material. The crank shaft bearing and the connecting rod bearing are larger for more durability.

This is the Redline CNC Modified 25.4 piston. Very light in weight, allowing a quicker throttle response and more rpm. Maintains strength and durabality. This piston can be used on any modified or stock Zenoah 260 PUM motor.

$57.00

$45.00

RCMK Collet ST - R right Hand Thread Rcmk Evo Cylinder
RCMK Collet ST - R right Hand ThreadRcmk Evo Cylinder

Collet ST - R right Hand Thread - for R254 engine REAR EX

The new evo cyl with new ex port shape and timing. New transfer port shape.direct bolt on for you Rcmk S-254,Sx-254,R-254 this is for the cyl only.

$16.50

$89.00

RCMK Evo Cylinder Kit RCMK Gas engine optional Short Venturi
RCMK Evo Cylinder Kit RCMK Gas engine optional Short Venturi

The new evo cyl kit with new ex port shape and timing. New transfer port shape.direct bolt on for you Rcmk S-254,Sx-254,R-254 and your Zenoah 260/231 comes complete with everthing shown in the picture.

RCMK Gas engine optional Short Venturi (RED)

$119.00

$25.00

RCMK K30 Cylinder RCMK K30 Piston 36MM (rear exhaust)
RCMK K30 CylinderRCMK K30 Piston 36MM (rear exhaust)

RCMK K30 Cylinder

RCMK K30 Piston 36MM (rear exhaust)

$96.00

$32.00

RCMK K30 Piston Pin Side Exhaust RCMK K30R Piston pin for Rear Exhaust
RCMK K30 Piston Pin Side ExhaustRCMK K30R Piston pin for Rear Exhaust

RCMK K30 Piston Pin Side Exhaust

K30R Piston pin for Rear Exhaust

$3.40

$4.80

RCMK K30RZ Cylinder RCMK Needle Roller Bearing KT 17 23 11(pair)
RCMK K30RZ CylinderRCMK Needle Roller Bearing KT 17 23 11(pair)

RCMK K30RZ Cylinder

RCMK Needle Roller Bearing KT 17 23 11(pair)

$98.00

$35.00

RCMK Piston Pin Spacer RCMK Piston Ring S, SX, R, RZ 254 Piston Ring
RCMK Piston Pin Spacer RCMK Piston Ring S, SX, R, RZ 254 Piston Ring

Piston pin spacer for all RCMK crankshafts.

Piston Ring fits: RCMK S, SX, R, RZ 254, Zenoah piston ring for 34mm engines. Fits G260RC / G260PU / G260PUH / G260PUM engines. Also fits Chung Yang 26cc engines. PMW part # 4310R. Zenoah part # T2088-41210.

$3.00

$6.00

RCMK R254 & K30R Option Kit RCMK R254 Engine Mount
RCMK R254 & K30R Option KitRCMK R254 Engine Mount

RCMK R254 & K30R Option Kit

RCMK R254 Engine Mount

$139.00

$48.00

RCMK RZ 254 Cylinder RCMK S-254 Crankcase
RCMK RZ 254 CylinderRCMK S-254 Crankcase

S-254 A four bearing crankcase with hardware, case gasket and bearings.

S-254 A four bearing crankcase with hardware, case gasket and bearings.

$91.00

$68.00

RCMK Side Exhaust Piston Pin RCMK Stroker Crank 1mm
RCMK Side Exhaust Piston Pin RCMK Stroker Crank 1mm

RCMK side exhaust Piston Wrist Pin- these are threaded on one end just screw a M5 bolt in and pull the pin right out. this is easy as it gets.

1mm Stroker Crank RCMK for marine engines. increasing primary compression and increasing power.

$3.50

$69.00

RCMK Throttle Arm RCMK Wristpin Bearing
RCMK Throttle ArmRCMK Wristpin Bearing

RCMK Throttle Arm

Wristpin Bearing, will fit any RCMK Engine.

$6.20

$3.50

Rear Exhaust Kit for Zenoah 260

This kit is setup to turn your engine into a rear exhaust racing engine.

$595.00