Piston Cup
Piston Cup Kit SuperGold for FMC Bean L1118/L1618
- Catalogue reference number
- P504326
- Catalogue brand
- Not recorded
Catalogue fields identify reference material. They do not confirm stock, OEM authorization or interchange. Verify the nameplate, original number and edition.

Catalogue model references
These are retained catalogue associations, not confirmed fitment for your equipment. Choose the model you want to review.
Catalogue specification records
| Original field | Recorded value |
|---|---|
| Weight | 0.41 lb (≈ 0.19 kg, converted) |
| Width | 4.00 in / 10.2 cm |
| Height | 7.00 in / 17.8 cm |
| Depth | 2.50 in / 6.4 cm |
Catalogue description records
This is a SuperGold piston cup kit for the fluid end of FMC Bean reciprocating pumps. The piston cup is the flexible sealing element fitted to the piston; it seals against the cylinder liner bore as the piston reciprocates and is a routine wear item that directly affects volumetric efficiency. It fits FMC Bean L1118, L1118SC and L1618 pumps and weighs about 0.41 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 pumps does this piston cup kit fit?
- It fits FMC Bean L1118, L1118SC and L1618 reciprocating pumps.
- What does the piston cup do?
- It is the flexible sealing element on the piston that seals against the cylinder liner bore during reciprocation; as a wear part, its condition directly affects the pump's volumetric efficiency.
- What part number does this cross-reference to?
- It is an aftermarket replacement supplied to match part P504326; the part number is listed for identification and cross-reference only.
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