The Wacker Neuson Rotary Shaft Seal is a genuine OEM component designed for the TH627 series. As a direct factory replacement, this seal is sourced and validated by Wacker Neuson to meet the original design tolerances of the TH627. When a rotary shaft seal wears or fails, it can allow fluid or contaminant ingress into critical rotating assemblies, leading to accelerated wear and potential mechanical damage — making a correct, quality replacement essential. Keeping the correct part number, on hand ensures you restore the machine to its original sealing specification without guesswork.
Key Features
- OEM-Grade Sealing Material — Manufactured to the original compound and dimensional specification, delivering the compression rating and lip geometry the TH627 rotating assembly was engineered around.
- Drop-In Shaft Compatibility — Sized to seat directly onto the existing shaft journal of the TH627 without reworking the bore or shaft surface.
- Verified TH627 Fitment — Confirmed fit for the TH627 (418-02) per the official Wacker Neuson spare parts list, eliminating compatibility uncertainty at the point of repair.
- Protects Internal Components — A functioning rotary shaft seal keeps lubricants in and contaminants out; a degraded seal accelerates bearing and gear wear throughout the drivetrain.
- Fuel and Fluid System Safety — Proper shaft sealing prevents fluid leaks that could create fire or environmental hazards during operation, making correct seal specification a genuine safety consideration.
A rotary shaft seal is a precision lip seal that sits around a rotating shaft, creating a dynamic barrier between two environments — typically keeping lubricating oil or grease inside a housing while blocking dirt, water, and debris from entering. The seal's flexible lip maintains contact with the spinning shaft surface to prevent fluid migration in either direction. When the seal lip wears, hardens, or is damaged, it loses that contact, allowing lubricant to escape and contaminants to enter the assembly, which rapidly accelerates wear on bearings, gears, and other internal components. Replacing a failed rotary shaft seal promptly with a correctly specified part like the Wacker Neuson 1000257355 is one of the most cost-effective ways to protect the broader drivetrain.
Part Details
| Part Number | 1000257355 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Rotary Shaft Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| SPARE PARTS LIST 418-02 / TH627 | TH627 (418-02) | 1000362623 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
