Product Description
1915560 Complete Piston Kit for Guascor SFGLD, SFGM & HGM560 Gas Engines
The 1915560 Complete Piston Kit is a precision-engineered OEM-compatible piston assembly designed for Guascor SFGLD 560, SFGM560, and HGM560 gas engines.
This kit includes all critical piston components required for engine overhaul, repair, or major service intervals, ensuring optimal combustion efficiency, durability, and long service life.
Engineered to meet OEM dimensional tolerances and metallurgical standards, the 1915560 piston kit is a reliable solution for high-load industrial gas engine applications such as biogas, natural gas, and CHP power plants.
Kit Contents – Part No. 1915560 (Complete Piston Assembly)
| Part Number | Description | Quantity |
|---|---|---|
| 1915065 | HGM piston | 1 |
| 1915280 | SFGLD piston ring set | 1 |
| 1615084 | Piston shaft (piston pin) | 1 |
| 7415066 | Circlip DIN 472 | 2 |
Note: All components are supplied as a matched set to ensure correct fitment and performance.
Advanced Piston Design – Optimized Combustion Performance
1915065 HGM Piston
The 1915065 piston is the core component of the 1915560 kit and features a specially engineered “flower-shaped” combustion bowl.
This advanced bowl geometry:
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Enhances air–fuel mixing by generating controlled turbulence and swirl
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Improves combustion efficiency and power output
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Reduces emissions and fuel consumption
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Promotes uniform flame propagation, minimizing knock and detonation
The piston crown forms an integral part of the combustion chamber and is carefully shaped to control airflow during the compression stroke, ensuring stable and complete combustion under all operating loads.
Active Piston Cooling
To manage extreme thermal loads, the piston is actively oil-cooled via a dedicated cooling jet. Pressurized oil is directed onto the underside of the piston or through internal galleries, significantly reducing thermal stress and extending piston and engine life.
1915280 Piston Ring Set – Function & Design
The 1915280 piston ring set consists of three precision-engineered rings, each with a specific role:
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Compression Ring
Chrome-plated rectangular ring mounted on a carrier, ensuring maximum sealing and compression. -
Scraper Ring
Removes excess oil from the cylinder wall, preventing oil entry into the combustion chamber. -
Oil Control (Greasing) Ring
Distributes a uniform lubrication film while returning surplus oil to the sump.
Together, these rings ensure high compression efficiency, controlled oil consumption, and extended cylinder liner life.
Technical Specifications – Clearances & Limits
| Parameter | Specification |
|---|---|
| Groove 2 height (scraper ring) | 3.5 mm (-0.010 / -0.025) |
| Groove 3 height (oil ring) | 4.0 mm (-0.010 / -0.025) |
| Clearance segment 2 | 0.060 – 0.095 mm |
| Clearance segment 3 | 0.030 – 0.075 mm |
| Slot No. 1 piston | 4.5 mm (0.050 / 0.070) |
| Slot No. 2 piston | 3.5 mm (0.050 / 0.070) |
| Slot No. 3 piston | 4.0 mm (0.020 / 0.050) |
| Elevation from piston pin center | 106 ± 0.050 mm |
| Combustion chamber volume | 228.81 cm³ ± 2.3 cm³ |
| Piston pin diameter | 66.00 ± 0.008 mm |
Maintenance & Service Intervals
For optimal engine reliability, Guascor recommends:
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Piston ring inspection/replacement:
During R2 service at ~20,000 operating hours -
Complete piston replacement:
During R3 service at ~30,000 operating hours
Service intervals may vary depending on fuel quality, operating load, and site conditions. Adhering to these guidelines helps prevent compression loss, excessive oil consumption, and major engine damage.
OEM Version – Manufactured by Mahle
The 1915560 piston kit is available in OEM version, manufactured by Mahle, the original equipment manufacturer for Guascor pistons.
Mahle pistons are globally recognized for:
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High-strength alloy materials
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Precision machining and tight tolerances
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Exceptional thermal and mechanical durability
Guascor relies on Mahle’s engineering expertise to ensure reliable performance in high-stress industrial gas engines. OEM pistons sourced directly from Mahle guarantee original quality, long service life, and maximum engine protection.
Applications
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Guascor SFGLD 560 gas engines
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Guascor SFGM560 gas engines
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Guascor HGM560 gas engines
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Biogas & natural gas power plants
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CHP and industrial power generation
Conclusion
The 1915560 Complete Piston Kit is a critical overhaul component for maintaining the performance, efficiency, and longevity of Guascor SFGLD, SFGM, and HGM560 engines. With its advanced combustion bowl design, precision ring set, and OEM Mahle availability, this kit delivers reliable, long-term engine performance under demanding operating conditions.
📩 Contact us today for pricing, OEM availability, or technical support for Guascor piston kits and major engine components.
