O.S. Engine OSMG1987 12TG-PX Compact 1/10 Nitro Engine  [OSMG1987]

O.S. Engine 12TG-PX
Price:
CAD$290.50
Brand:
O.S. Engine
Model:
OSMG1987
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Tuning Nitro Performance with the O.S. Engine OSMG1987 12TG-PX

If you are getting into nitro RC or upgrading an existing setup, the O.S. Engine OSMG1987 12TG-PX gives a sensible balance of performance and fuel economy. Its design is aimed at both newcomers and experienced builders who need a reliable, tunable powerplant.

Built for Flexible Use

The 12TG-PX is notable for delivering up to 14 minutes per tank in typical running conditions, making it a practical choice for longer sessions. The engine accepts either slide-valve or rotary carburetors so you can match throttle character to your driving style.

Suited to Road and Trail

This engine adapts well whether mounted in a 1/10 on-road machine or an off-road buggy. The slide-valve variant provides precise throttle control for track use, while the rotary option gives a broader powerband for rougher surfaces and mixed-terrain driving.

Straightforward Competition Fitment

The integrated pilot shaft simplifies fitting the 12TG-PX into stadium trucks and other competition chassis, making upgrades less intrusive and reducing installation time.

Specifications

  • Carb: 12D slide-valve
  • Displacement: 0.128 (2.1 cc)
  • Bore: 0.543 (13.8 mm)
  • Stroke: 0.551 (14 mm)
  • Practical RPM: 5,000-30,000
  • Output: 0.7 hp @ 28,000 rpm
  • Weight: 8.82 oz (250 g)

The O.S. Engine 12TG-PX is a practical upgrade for RC hobbyists wanting a mix of efficiency and tunability, with a simple installation path and broad compatibility across 1/10 models.

Basic needle adjustments and break-in are straightforward; follow O.S. Engine break-in steps and start with conservative needle settings to learn how the engine reacts.
Use a standard nitro fuel recommended for 1/10 engines, with the oil content suggested by your chassis manufacturer or motor instructions to ensure proper lubrication and longevity.
Yes, the 12TG-PX is compatible with both styles; choose slide-valve for tighter throttle response or rotary for a broader midrange depending on your vehicle and track.
The pilot shaft on this model keeps installation simple, but check crank height and backplate alignment with your truck chassis to ensure correct fitment.

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