Piston Assembly Bonded for APLEX SC-170L/SC-170DD

This is a bonded piston assembly for APLEX SC-170L and SC-170DD pumps. As a piston, it transmits force from the power end to the pumped fluid inside the cylinder liner and reciprocates within the liner bore on every stroke. The "bonded" designation in the name means the piston body and its sealing element are bonded together as one assembly. It fits the APLEX SC-170L and SC-170DD models and weighs about 4.88 lb. Supplied as an aftermarket replacement that can replace part number 303010.
What it is
A pump piston transmits force from the power end to the pumped fluid inside the cylinder liner. It carries the sealing element and reciprocates within the liner bore on every stroke.
Pump compatibility
Specifications
| Property | Value |
|---|---|
| Weight | 4.88 lb (≈ 2.21 kg, converted) |
| Width | 12.7 cm |
| Height | 10.8 cm |
| Depth | 10.8 cm |
Manufacturer technical notes
Piston Assembly Bonded for APLEX SC-170L/SC-170DD (SKU:303010) Manufactured with HNBR rubber per ASTM D2000-22 and bimetal skeleton via vulcanization, temperature resistance -40°C~220°C, compressive strength ≥120MPa. API 7K compliant for dynamic sealing, salt spray test 2000h corrosion-free
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing 303010.
FAQ
- Which pumps does this piston assembly fit?
- It fits the APLEX SC-170L and SC-170DD models.
- What does "bonded" mean for this piston?
- "Bonded" means the piston body and its sealing element are bonded together as a single assembly rather than supplied as separate parts.
- What part number does it replace?
- It is an aftermarket replacement for part number 303010; the number is given for identification and cross-reference only and does not indicate OEM manufacture.
Related parts
All brand names, model numbers and part numbers are used for identification and cross-reference only and do not imply original-equipment manufacture. This is an aftermarket replacement part.
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