TKO Ceramic 14.2x25.3 Rear Engine Bearing (Werks/Sirio) (1)

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This is a ceramic rear engine bearing from TKO Competition Development designed to fit the Werks Racing Team Line and Sirio off-road competition buggy and truck engines. The bearings have double the RPM capability over steel and reduce friction, rotating mass and vibration. Material specs 52100 bearing steel, poly cage, Cerbec balls grade 3. The bearing dimensions are 14.2mm inner, 25.3mm outer and 6mm thick. This bearing is open to allow oil to lubricate the bearings during use. This bearing will also fit any other .21 to .28 competition engine that uses the same bearing dimensions.

IMPORTANT: Inner race is wider on one side. This faces rear of engine.

This product was added to our catalog on Friday, January 18, 2008.

Chris Nielsen
Verified Owner
Bought this bearing for my Werks engine. Fits well in the crankcase, but the crankshaft don't go all the way in. It turns out the bearing is NOT 14.2mm . Don't buy this if you plan on using it in a Werks engine...
T Kelly
Verified Owner
Its a really tight fit, but it does fit the crank. I have been using the bearing for a couple gallons now and it has worked flawlessly.
RM
Verified Owner
Warning...... Do Not Use with a Werks engine that requires a 14.2mm bearing these are ONLY 14mm and will not fit on the crank of a Werks engine. Read the item description not the item heading........ Amain please change the item heading to read 14mm x 25.3mm NOT 14.2x25.3
james davy
Verified Owner
absolute rubbish didnt last three litres of fuel caused broken crank very expensive mistake

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