OIL SEAL 1 3/8 SHFT FOR C25, C35, AND C40 SERIES - NOT H/D

The Oil Seal for a 1 3/8 shaft fits the Myers C25, C35 and C40 series pumps (not the heavy-duty versions). An oil seal retains lubricating oil in the power end and excludes contaminants where a shaft passes through the housing. It is an aftermarket replacement that interchanges with Myers part 05710A004K.
What it is
An oil seal retains lubricating oil in the power end and excludes contaminants where a shaft or rod passes through the housing.
Pump compatibility
Specifications
| Property | Value |
|---|---|
| Weight | 0.04 lb (≈ 0.02 kg, converted) |
| Width | 5.3 cm |
| Height | 5.3 cm |
| Depth | 1.9 cm |
Manufacturer technical notes
OIL SEAL 1 3/8 SHFT Seal (C25/C35/C40 Series, SKU 05710A004K), forged from ASTM D2000-20 Nitrile Rubber (NBR) via compression molding. Operates at -30°C to 120°C, dynamic pressure ≤3000psi, API 7K compliant. Compatible with mud pump drive shaft seals, abrasion-resistant lifespan ≥5000 hours, matches alumina ceramic liners.
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing Myers 05710A004K.
FAQ
- Which pumps does this oil seal fit?
- It fits the Myers C25, C35, C35-20, C35-20-DV, C40 and C40-20 models. As the name notes, it is for the standard versions, not the heavy-duty (H/D) versions.
- What does this oil seal do?
- It retains lubricating oil in the power end and keeps contaminants out where the 1 3/8 shaft passes through the housing.
- What part number does it replace?
- This aftermarket oil seal interchanges with Myers part number 05710A004K, listed for identification only and not indicating 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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