PONY ROD PISTON PUMP TYPE FOR KERR KM-3250PT/KM-3300PT/T30MMPT
This is a pony rod of the piston-pump type for Kerr KM-3250PT, KM-3300PT and T30MMPT pumps. The pony rod is the intermediate rod that extends between the crosshead and the piston rod, passing through the oil-seal housing that separates the power end from the fluid end. It is an aftermarket replacement part for Kerr part number KM-275, supplied to fit the T30M model. It measures about 7.00 in long and 1.80 in across, and weighs about 1.56 lb.
What it is
This is a complete reciprocating piston pump unit; the listed rating describes its published flow and pressure capacity.
Pump compatibility
- T30M
Specifications
| Property | Value |
|---|---|
| Weight | 1.56 lb (≈ 0.71 kg, converted) |
| Width | 1.80 in / 4.6 cm |
| Height | 1.80 in / 4.6 cm |
| Depth | 7.00 in / 17.8 cm |
Manufacturer technical notes
Pony Rod Piston for KERR KM-3250PT/KM-3300PT (SKU: KM-275) API 7K-certified forged 35CrMo alloy steel (tensile strength ≥980MPa) with quenching+tempering (HRC32-36), phosphated coating (ASTM B117 700h corrosion resistance), compatible with KERR T30MMPT mud pumps, paired self-lubricating bronze bushings, clamping force ≥50kN, precision tolerance ±0.01mm
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing Kerr KM-275.
FAQ
- Which pumps does this pony rod fit?
- It is the piston-pump type for Kerr KM-3250PT, KM-3300PT and T30MMPT pumps, and is configured to fit the T30M model.
- What does a pony rod do?
- A pony rod is the intermediate rod between the crosshead and the piston rod; it transmits the reciprocating motion and passes through the oil-seal housing that separates the power end from the fluid end.
- What is the cross-reference part number?
- This is an aftermarket replacement part that cross-references to Kerr part number KM-275. The brand and number are for identification only and do 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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