ARO 637128-J34-B Lower Pump End Kit for Piston Pumps
Lower pump end kit with rod seal, guide, W-packing and wiper; listed in five ARO piston pump parts lists
SKU:637128-J34-B
$442.80
This lower pump end kit packs a rod seal, guide, W-packing, U-cup package and wiper. It is listed for five ARO AF0813 and AF1020 piston pumps.
WHERE TO BUY?
The ARO 637128-J34-B lower pump end kit carries the rod-side sealing parts for an ARO piston pump. Per the spec notes, it contains a rod seal, guide, W-packing, wiper, U-cup package, gasket, snap ring and cotter pin. It is tagged for marine pump/equipment use.
What sets J34-B apart is the guide and rod seal pairing. The guide keeps the rod centered as it travels, and the rod seal and wiper keep fluid in and grit out. The W-packing seals the pumping stroke itself.
Signs the Lower End Needs Service
- A wet film or drip forms on the rod below the packings.
- The rod shows side play or scoring, suggesting a tired guide.
- Output pressure sags and the air motor cycles faster to keep up.
ARO Pumps That List This Kit
That covers all five pumps tied to J34-B in our data. Check your nameplate model against them before ordering.
| Brand | ARO |
|---|---|
| Product Type | Kit |
| Application | Marine Pump/Equipment |
| Notes | Lower Pump End Kit, Includes: Gasket; Snap Ring; U-Cup Package; Cotter Pin; Guide; Rod Seal; W-Packing; Wiper |
