Piston Cup
T32 PISTON CUP 3.00 INCH
- Catalogue reference number
- 0856-28-300-00
- Catalogue brand
- Kerr
Catalogue fields identify reference material. They do not confirm stock, OEM authorization or interchange. Verify the nameplate, original number and edition.
Catalogue model references
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Catalogue specification records
| Original field | Recorded value |
|---|---|
| Weight | 0.09 lb (≈ 0.04 kg, converted) |
| Width | 7.7 cm |
| Height | 7.7 cm |
| Depth | 2.1 cm |
Catalogue description records
The T32 Piston Cup (3.00 inch) 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, which is why it is a routine wear item. This piston cup fits the JT40, KP-3300PT and T32 pumps and is an aftermarket replacement part for Kerr 0856-28-300-00.
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 T32 piston cup fit?
- It is listed to fit the JT40, KP-3300PT and T32 pumps.
- What is a piston cup and why does it wear?
- A piston cup is the flexible seal on the piston that maintains the seal against the cylinder liner bore as the piston reciprocates. Because it works the bore on every stroke, wear here directly affects volumetric efficiency, so it is treated as a consumable.
- What part number is this a replacement for?
- It is an aftermarket replacement part for Kerr 0856-28-300-00, listed for identification and cross-reference only.
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