OS Engines - Item No. OSMG2070
4.2 out of 5 Customer Rating

O.S. Speed B2103 Type R Buggy Engine with T-2100SC Pipe


OS Speed B2103 Type-R and Type-S 3.5cc buggy engines, which not only have been newly designed, but also modified technically for improving their performance over excellent results at past numerous competitions. For corresponding driver’s preference also the course layout, two types B2103 Type-R and Type-S with different characteristics are in lineup. Both of them are long stroke engines φ16.27 mm x 16.80 mm. The most suitable and featured crankcase designed for buggy engine has been engraved with OS SPEED log as you can see in the pic, and the engine utilized a cooling head for the best possible cooling in high ambient temperatures. More than that, both engines come with a rear ceramic bearing and the traditional OS techniques DLC-coated crankshaft coming with tungsten balanced. For enhancing vibration reduction and preventing dust, the inner head also was adopted silicon O-ring. Both engines models are purchased available as engine only or including the T-2100SC exhaust and 85mm M2004SC manifold set.

Video Overview


Product Specs

Product Width
1.8 in (45 mm) at mounting tabs
Crankshaft Threads
Product Height
3.3 in (83 mm) bottom of mounting tabs/top of cylinder head
RPM Range
4,000 - 42,000 rpm
0.64 in (16.3 mm)
Power Type
Plug Type
P3 Turbo Ultra Hot Glow Plug
0.66 in (16.8 mm)
0.213 cu in (3.49 cc)
Product Length
2.5 in (64.5 mm) from backplate to front bearing
Muffler Type
Tuned Muffler