Wrist Pin for C25, C35, C40, and APLEX SC-35

This is a wrist pin (gudgeon pin), the pivot pin that connects the connecting rod to the crosshead in the power end of a reciprocating pump. It fits the C25, C35, C35-20, C35-20-DV, C40, C40-20 and Aplex SC-35 pump models and interchanges with Myers part 06116A000. It weighs about 0.45 lb.
What it is
A wrist pin (gudgeon pin) is the pivot pin connecting the connecting rod to the crosshead.
Pump compatibility
Specifications
| Property | Value |
|---|---|
| Weight | 0.45 lb (≈ 0.20 kg, converted) |
| Width | 2.5 cm |
| Height | 2.5 cm |
| Depth | 5.7 cm |
Manufacturer technical notes
Wrist Pin (Model: SC-35WristPin) Forged from 42CrMoE alloy steel with isothermal quenching + nitriding surface treatment, achieving surface hardness 59-62HRC, nitriding depth 1.01-1.12mm, tensile strength ≥1200MPa. Compatible with Myers Apex SC-35/C25/C35/C40 mud pump connecting rods. API 7K certified to withstand cyclic loads up to 35kN, fatigue life ≥15,000 hours under 3000psi operating pressure.
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing Myers 06116A000.
FAQ
- Which pumps does this wrist pin fit?
- It fits the C25, C35, C35-20, C35-20-DV, C40, C40-20 and SC-35 pump models.
- What does a wrist pin do?
- A wrist pin is the pivot pin that connects the connecting rod to the crosshead in the power end of the pump.
- What is the interchange reference for this wrist pin?
- It is an aftermarket replacement that interchanges with Myers part 06116A000; the brand and number are listed for identification only and do not imply original-manufacturer production.
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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