Pony Rod Oil Seal for Kerr KT-3350PT/KA-3500PT
This is a pony rod oil seal for Kerr KT-3350PT and KA-3500PT pumps. It seals where the pony rod passes through the housing, retaining lubricating oil in the power end and keeping contaminants out. This is an aftermarket replacement part offered as a reference equivalent to Kerr part number KA-28, not an original Kerr component.
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 | 0.12 lb (≈ 0.05 kg, converted) |
| Width | 19.7 cm |
| Height | 5.1 cm |
| Depth | 1.6 cm |
Manufacturer technical notes
Pony Rod Oil Seal Kerr KT-3350PT/KA-3500PT (KA-28), molded from ASTM D2000 NBR rubber with sulfur curing (hardness 70±5 Shore A), API 7K-compliant for mud pumps, pressure differential resistance ≥30MPa, salt spray tested 1000h corrosion-free, compatible with ceramic liners for 10000h MTBF, fits EMSCO/FMC series
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing Kerr KA-28.
FAQ
- Which pumps does this oil seal fit?
- It fits the Kerr KT-3350PT, KA-3500PT, T50, T50-PT and JT7020 models.
- What does a pony rod oil seal do?
- It retains lubricating oil in the power end and excludes contaminants where the pony rod passes through the housing.
- Is this an original Kerr part?
- No. It is an aftermarket replacement supplied as a reference equivalent to Kerr part number KA-28; the brand and part number are for identification only.
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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