RCMK Engine Parts

The "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.

Price: $57.00

1mm Stroker Crank RCMK for marine engines. increasing primary compression and increasing power. Feel the additional power that can only be obtained by increasing the cc's of your engine. This crankshaft features a 29mm stroke up from the stock 28mm stroke. This crankshaft will increase the displacement of a Zenoah or RCMK Fits CY / Sikk Marine Motors Also fits Zenoah G231PUM. Installing this crankshaft has a significant performance gain for the Zenoah engines.and rcmk motors. NOTE: If you run this crankshaft in a Zenoah engine you must use the RCMK piston pin bearing # 3704000001 and RCMK Pin Washer Spacers.

Price: $69.00

Replacement Pulley for Zenoah G231PUM/G260PUM/G231PUH/G60PUH Engines. Also all RCMK engines. The hex makes it very easy to remove just with a motor tool.

Price: $6.25

Piston Pin Snap Ring for Rcmk, Zenoah, Quickdraw, J&G, CY Engines.

Price: $1.00

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

Price: $68.00

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.

Price: $6.00

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

Price: $91.00

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. we have dyno this cyl and it is hands down the most powerful stock 34 mm cyl on the market. it dyned at 5.01 hp at 2.02 lbs of tg . if you like to upgrade your you rcmk get this cyl. we think this is the new motor of the rc boat world.

Price: $89.00

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

Price: $16.50

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.

Price: $119.00

RCMK Billet four bearing cases for a 260 Zenoah. They have adjustable ignition timing. The cases come with all four main bearings. This gives you an extremely rigid bottom end that is almost impossible to twist a crank. The crankcase kit comes with Everything you see in pictures to swap out with your Zenoah cases. All of your original motor mounts will fit and locate in the same location as they did on your Zenoah. This kit is extremely easy to assemble.

Price: $185.00

Piston pin spacer for all RCMKcrankshafts.

Price: $1.75

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.

Price: $3.50

Wristpin Bearing, will fit any RCMK Engine.

Price: $3.50