The Piston compresses refrigerant gas within the cylinder, performing the vital thermodynamic work for your system. Without robust components, GRAM compressors suffer from pressure drops and inefficiency.
Our catalog features OEM-cross-referenced replacements guaranteed to fit your equipment perfectly, restoring optimal performance and longevity.
| Ralco P/N | Description | Compressor | OEM P/N | Models | Add | |
|---|---|---|---|---|---|---|
PST0100 | PISTON COMPLETO FIT *HC-75* / PISTON COMPLETE 3 GROOVES REF-77-580-0453 + 77-580-1240 | GRAM 775800453 775800415 775801240 | ||||
PST0101 | PISTON SOLO FIT *HC-75* / ONLY PISTON 3 GROOVES REF-77-580-2132 + 77-580-1240 | GRAM 775800453 775802132 775801240 | HCT 8075HC / HCL / HCH 6075HC / HCL / HCH 2075HC / HCL / HCH 4075HCT 4075 / 6075HC / HCL / HCH 8075 | |||
PST0190 | PISTON ANTIGUO COMPLETO 4 SEGMENTOS FIT *HC-75* / PISTON COMPLETE 4 GROOVES UP TO 8/1996 REF- | GRAM | ||||
PST0200 | PISTON COMPLETO FIT *HC-100* / PISTON ASSY. REF-77-600-6660 | GRAM 776006660 | HCT 6100 / 8100 Mk2HC / HCL / HCH 6100 / 8100 Mk2 | |||
PST0201 | PISTON SOLO 4 RAN. FIT *HC-100* / BARE PISTON ONLY 99.8X62.9X140 REF-77-600-0540 | GRAM 776000540 | HCT 6100 / 8100 Mk2HC / HCT 100 Mk1HC / HCL / HCH 6100 / 8100 Mk2 | |||
PST0300 | PISTON COMPLETO FIT *HC-125* / PISTON COMPLETE REF-77-615-0518 | GRAM 776150518 | HC / HCT 8125 | |||
PST0301 | PISTON SOLO FIT *HC-125* / PISTON ONLY 124.7X89.9X183 REF-77-615-1070 | GRAM 776151070 | HC / HCT 8125 | |||
PST0400 | PISTON SOLO FIT *HC-152* / PISTON REF-77-630-1070 | GRAM 776301070 | ||||
PST05120 | BALANCE PISTON FIT GRAM *GST-25+31+41* Nº-17 REF-77-120-2036 | GRAM 771202036 | GST | |||
PST05595 | KIT PISTON EQUILIBRIO + CAMISA GRAM FIT *GSV-147* / SET BALANCE PISTON & SLEEVE REF-3084P595 + 77-233-2024 + 77-233-2025 | GRAM 772332024 3084P595 772332025 | ||||
PST05597 | KIT PISTON EQUILIBRIO + CAMISA GRAM FIT *GSV-50+64* / SET BALANCE PISTON & SLEEVE REF-3084P597 + 77-163-2024 + 77-163-2025 | GRAM 3084P597 771632024 771632025 |