Piston Cup
303046 Piston Cup Kit; 6.00 Inch, Series B
- Catalogue reference number
- 303046
- Catalogue brand
- Not recorded
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Catalogue model references
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Catalogue specification records
| Original field | Recorded value |
|---|---|
| Weight | 3.10 lb (≈ 1.41 kg, converted) |
| Width | 6.50 in / 16.5 cm |
| Height | 3.50 in / 8.9 cm |
| Depth | 6.50 in / 16.5 cm |
Catalogue description records
Part 303046 is a 6.00 inch Series B piston cup kit for the fluid end of a reciprocating pump. The piston cup is the flexible sealing element that seals against the cylinder liner bore as the piston reciprocates, so it is a routine wear item. It fits the W-446 pump and is supplied as an aftermarket replacement for part number 303046, matching the original part's form and fit. The kit weighs about 3.10 lb.
A piston cup is the flexible sealing element fitted to the piston in the fluid end. It maintains the seal against the cylinder liner bore as the piston reciprocates, so wear here directly affects volumetric efficiency.
Catalogue question records
Original catalogue questions are retained. Fitment and availability need technical review.
- Which pump does piston cup kit 303046 fit?
- It fits the W-446 pump, in the 6.00 inch Series B size.
- What does the piston cup do?
- It is the flexible seal on the piston that seals against the cylinder liner bore as the piston reciprocates; wear here affects volumetric efficiency, so it is a routine replacement part.
- What part number does this replace?
- It is an aftermarket replacement for part number 303046, supplied to match the original part's form and fit.
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