O.S. Engine OS28154000 Heatsink Head GT15HZ for GT15 nitro engines  [OS28154000]

O.S. ENGINES HEATSINK HEAD GT15HZ
Price:
NZD$69.89
Brand:
O.S. Engine
Model:
OS28154000
GTIN:
4531028153196
Condition:
Brand New
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GT15 Head: Product Summary

The O.S. Engine heatsink head OS28154000 is an RC cylinder head intended as a direct replacement or performance-minded upgrade for GT15 engines marked GT15HZ. The write-up highlights fitting notes, service checks, and the head's role in temperature control rather than promotional language.

This head is compatible only with GT15-designated units, so confirm the engine code and physical clearances prior to purchase. The finned profile mates to the cylinder and head studs; correct screw torque and clean contact surfaces are required to preserve a reliable seal and stable thermal behavior on the model.

As part of tuning, this head affects combustion chamber cooling and heat dissipation while running. When changing heads, verify glow plug access, carburetor clearance, and any bodywork interference, then perform warm-up and idle procedures before full-power operation.

Specifications

  • Item: O.S. ENGINES HEATSINK HEAD GT15HZ
  • Model Number: OS28154000
  • Material: unspecified
  • Compatibility: GT15

Fit this heatsink head to maintain predictable cooling characteristics on GT15 engines, and adhere to standard nitro engine installation and torque routines during service and setup.

What is the expected longevity of the fins under normal use?

Fins are durable for routine RC use, but impacts, debris, and corrosion can shorten service life; inspect fins regularly and clear trapped dirt to preserve cooling.

Can the head corrode from fuel or weather exposure?

Exposure to fuel residue and moisture can affect some materials; wash and dry the head after wet runs and inspect mating areas for signs of corrosion during routine maintenance.

Are the fins prone to bending or damage?

Fins can bend under impact; avoid contact with hard objects and store the engine safely. Minor fin damage may be cosmetic but severe deformation can affect airflow and should be addressed.

How should I clean the finned surfaces?

Use a soft brush and mild cleaner to remove oil and debris, then dry thoroughly. Avoid aggressive abrasives that could alter the mating surfaces or fin profile.

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