1915120 / 19.15.120 FGLD piston
The 19.15.120 piston is a high-quality engine component designed specifically for Guascor FGLD gas engines. Engineered to operate under continuous high load and elevated combustion temperatures, this piston delivers consistent power output, reduced wear, and long service life in industrial gas engine applications.
It is widely used in biogas plants, natural gas engines, landfill gas engines, and cogeneration (CHP) systems, where engine reliability and efficiency are mission-critical.
Application: Guascor FGLD gas engines
Product Type: Engine piston
Engine Category: Industrial gas engine
Condition: New / OEM-compatible / OEM available
Use Case: Power generation, CHP, biogas & industrial gas engines
The 19.15.120 FGLD piston incorporates a precisely engineered combustion bowl profile that supports stable and efficient combustion.
Improved air–fuel mixing
Enhanced turbulence and swirl
Uniform flame propagation
Reduced knocking and abnormal combustion
Improved fuel efficiency and power stability
This combustion bowl geometry ensures that the air-fuel mixture burns evenly, minimizing thermal stress on engine components and supporting long-term reliability.
To withstand the extreme heat generated in FGLD engines, the piston is designed for active oil cooling. Pressurized lubricating oil is directed to the underside of the piston crown or circulated through internal oil galleries.
Effective heat dissipation
Reduced piston crown temperature
Lower risk of thermal fatigue and cracking
Extended piston, liner, and ring life
This cooling strategy is essential for engines operating in continuous or base-load conditions.
The 19.15.120 piston is manufactured using premium alloy materials capable of handling:
High combustion pressures
Long operating hours
Severe thermal cycling
Precision machining ensures:
Accurate piston-to-liner clearance
Reduced blow-by
Controlled oil consumption
Smooth and stable engine operation
The 19.15.120 FGLD piston is also available in OEM specification, manufactured by Mahle, the original piston supplier for Guascor engines.
Mahle pistons are known worldwide for:
Advanced metallurgy
Tight dimensional tolerances
High resistance to wear and deformation
Proven durability in industrial gas engines
This OEM option guarantees full compatibility with original Guascor engine specifications.
For optimum engine performance and reliability:
Inspect piston and rings during major overhauls
Replace piston rings during scheduled R2 service intervals
Replace piston during R3 overhaul or when wear limits are reached
Actual service intervals may vary depending on fuel quality, operating load, and site conditions.
The 19.15.120 piston remains fully supported for older and legacy Guascor FGLD engines, ensuring:
No requirement for engine modification
Retention of original combustion characteristics
Cost-effective maintenance solution
Extended operational life of existing engines
This is particularly valuable for operators maintaining long-running installations with controlled maintenance budgets.
We supply Guascor FGLD pistons in both OEM and high-quality OEM-compatible versions, offering:
Competitive pricing
Worldwide shipping
Reliable stock availability
Technical support for correct part selection