Parts/Engines & fuel/Engine parts/O.S. B2101 & B2102 Speed Complete Piston, Sleeve & Rod Assembly
O.S. B2101 & B2102 Speed Complete Piston, Sleeve & Rod Assembly
O.S.

O.S. B2101 & B2102 Speed Complete Piston, Sleeve & Rod Assembly

Part # OSM2A2030105.0(1)
Where to buy
$219.99
AMain Hobbies
Seen Oct 12, 2026
$219.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

This is a replacement O.S. B2101 & B2102 Speed Complete Piston, Sleeve and Rod Assembly. This assembly not only includes the piston and sleeve, but also the connecting rod, wrist pin and wrist pin clips. In fact the rod is already pre-assembled for you, so you can simply install it in the engine and forget about the hassle of removing wrist pin clips to install a new rod.
CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

Reviews5.0 · 1 review

AnonymousVerified owneron O.S. B2101 & B2102 Speed Complete Piston, Sleeve & Rod Assembly

I put it in my b2102 os engine and everything went smooth from the installation to break in procedure I have one race weekend and still running strong

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