1915210 / 19.15.210 SFGLD560 complete piston
The 1915210 Complete Piston Kit is engineered specifically for Guascor SFGLD gas engines, delivering reliable combustion performance, extended service life, and optimal engine efficiency. This piston set is suitable for heavy-duty industrial gas engines operating under continuous and high-load conditions.
Application: Guascor SFGLD / HGM gas engines
Category: Complete piston assembly
Engine Type: Industrial gas engines
Condition: New / OEM-compatible / OEM available
Guascor 1915210 piston – side view
Guascor 1915023 piston – top view
Guascor piston – lay view
Guascor 1915210 piston – front view
| Part Number | Description | Quantity |
|---|---|---|
| 1915023 | HGM / SFGLD Piston | 1 |
| 1915280 | SFGLD Piston Ring Set | 1 |
| 1615084 | Piston Shaft (Wrist Pin) | 1 |
| 7415066 | Circlip DIN 472 | 2 |
This complete piston kit includes all critical components required for piston replacement during scheduled overhauls or corrective maintenance.
The Guascor HGM / SFGLD Complete Piston Kit (1915210) is a precision-engineered solution designed to withstand extreme thermal loads, combustion pressures, and continuous operation typical of industrial gas engines used in power generation, biogas plants, and CHP installations.
Each component in this kit plays a vital role in ensuring:
High combustion efficiency
Reduced oil consumption
Stable compression
Long engine life
The 1915023 piston, the core component of this kit, features an advanced combustion bowl design commonly referred to as the “flower-shaped” bowl, used in earlier SFGLD engine generations.
Enhanced air-fuel turbulence and swirl
Improved fuel atomization and mixing
Faster and more uniform flame propagation
Reduced knocking and detonation risk
Improved fuel efficiency and lower emissions
This combustion bowl geometry ensures controlled combustion, leading to higher power output and smoother engine operation.
To manage extreme operating temperatures, the piston is actively oil-cooled using a dedicated oil jet system. Pressurized lubricating oil is sprayed onto the underside of the piston or circulated through internal oil galleries, effectively:
Reducing piston crown temperature
Preventing thermal fatigue
Extending piston and ring life
Protecting cylinder liner integrity
The SFGLD piston ring set (1915280) consists of three precision-engineered rings:
Compression Ring
Chrome-plated rectangular ring
Ensures gas sealing and maximum compression
Scraper Ring
Removes excess oil from cylinder walls
Prevents oil from entering combustion chamber
Oil Control (Greasing) Ring
Maintains uniform oil film
Controls lubrication and oil return
Together, these rings ensure optimal sealing, lubrication control, and reduced wear.
| Parameter | Specification (mm) |
|---|---|
| Groove 1 height (Compression) | 3.54 – 3.56 (Limit 3.7) |
| Groove 2 height (Scraper) | 3.54 – 3.56 (Limit 3.7) |
| Groove 3 height (Oil ring) | 4.02 – 4.04 (Limit 4.15) |
| Ring clearance – Segment 1 | 0.05 – 0.085 (Limit 0.15) |
| Ring clearance – Segment 2 | 0.05 – 0.082 (Limit 0.15) |
| Ring clearance – Segment 3 | 0.03 – 0.062 (Limit 0.15) |
| Piston pin diameter | 65.00 ± 0.008 |
Maintaining correct tolerances is critical for engine reliability and service life.
To ensure maximum engine uptime and prevent catastrophic failures:
Piston Rings (1915280):
Inspect and replace during R2 service – 20,000 running hours
Complete Piston (1915210):
Replace during R3 service – 30,000 running hours
Service intervals may vary depending on fuel quality, load profile, and operating environment.
This piston kit is also available in OEM configuration, manufactured by Mahle, the original equipment manufacturer for Guascor pistons.
Mahle pistons are globally recognized for:
Superior metallurgy
Precision machining
High thermal resistance
Long service life in industrial engines
Mahle is a trusted development partner for leading engine manufacturers and supplies pistons for multiple Guascor engine platforms, including HGM and SFGM series.
Guascor’s continuous R&D efforts have resulted in new-generation combustion bowl designs that deliver:
Higher turbulence
Better air-fuel mixing
Improved combustion stability
Enhanced engine reliability
Reduced operating costs
These advancements directly translate into improved efficiency and longer engine life.
For operators running older Guascor SFGLD and HGM engines, previous-generation piston designs remain fully supported and available from stock.
No engine modifications required
Maintains original engine performance
Cost-effective maintenance solution
Extended operational life of legacy engines
We ensure continuous availability of legacy piston designs to support customers with budget-conscious maintenance requirements.
We are committed to supplying high-quality Guascor piston kits—OEM and OEM-compatible—globally. Whether you operate modern or legacy Guascor gas engines, we provide dependable solutions that help reduce downtime, control maintenance costs, and maintain peak engine performance.