303062 Economy Series Liner; M1432, Hardened Chrome, 4 Inch (Imported)
The 303062 Economy Series Liner is a 4-inch hardened-chrome cylinder liner for the fluid end of a reciprocating pump, providing the replaceable bore in which the piston travels on every stroke. As a primary wear surface, it is sized to fit the M1432 pump. This is an aftermarket replacement part offered under part number 303062; it ships at about 15 lb.
What it is
This is a replacement part for the listed reciprocating pump models, supplied to match the original component's form and fit.
Pump compatibility
- M1432
Specifications
| Property | Value |
|---|---|
| Weight | 15.00 lb (≈ 6.80 kg, converted) |
| Width | 8.00 in / 20.3 cm |
| Height | 8.00 in / 20.3 cm |
| Depth | 8.00 in / 20.3 cm |
Manufacturer technical notes
303062 Economy Series Liner (SKU: 303062), forged from ASTM A278/A278M gray cast iron with electrolytic hard chrome plating (thickness ≥0.15mm), Rockwell hardness HRC 60-65, API 7K-compliant for mud pumps (F1300/F1600), pressure differential ≥35MPa, salt spray tested 500h corrosion-free, tensile strength ≥250MPa for extended wear resistance in high-pressure drilling.
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing 303062.
FAQ
- Which pump does the 303062 liner fit?
- It is sized for the M1432 pump. Only this fitment is listed.
- What does this part do in the pump?
- It is the cylinder liner — the replaceable 4-inch bore in the fluid end where the piston reciprocates. Because it is a main wear surface, it is a routine service item.
- Is 303062 an original part?
- It is an aftermarket replacement liner supplied under part number 303062 to match the M1432 fluid end by form and fit.
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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