303038 Gasket, Cylinder Cover, EW440/446
Part 303038 is a cylinder cover gasket that seals the bolted joint at the cylinder cover to prevent leakage of pumped fluid and pressure. It fits the EW440 and W-446 pumps and is supplied as an aftermarket replacement for part number 303038, matching the original part's form and fit. The gasket weighs about 0.10 lb and measures roughly 5.25 x 5.25 x 0.48 inches.
What it is
A cylinder cover closes the outer end of the fluid-end cylinder, retaining pressure and providing access for liner and piston service.
Pump compatibility
- EW440
- W-446
Specifications
| Property | Value |
|---|---|
| Weight | 0.10 lb (≈ 0.05 kg, converted) |
| Width | 5.25 in / 13.3 cm |
| Height | 5.25 in / 13.3 cm |
| Depth | 0.48 in / 1.2 cm |
Manufacturer technical notes
303038 Cylinder Cover Gasket (SKU:303038/EW440-446), fabricated from ASTM D2000 NBR rubber (70 Shore A hardness), vulcanized with phosphate coating for corrosion resistance, pressure rating ≥35MPa, API 7K compliant, compatible with Buckhorn Pumps high-pressure systems
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing 303038.
FAQ
- Which pumps does gasket 303038 fit?
- It fits the EW440 and W-446 pumps.
- What does this gasket seal?
- It seals the cylinder cover joint to contain pumped fluid and prevent pressure leakage.
- What part number does this replace?
- It is an aftermarket replacement for part number 303038, supplied to match the original part's 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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