The Wacker Neuson Cover Check Valve Seal 6in is a genuine OEM component designed for the APT6S and APT6T series pumps, including standard, surge brake, electric brake, and cold weather configurations. As a direct OEM replacement sourced from Wacker Neuson, this seal is built to the same specifications as the original part — ensuring a proper fit in the check valve assembly without guesswork or modification. Compatible across six distinct APT6S and APT6T pump variants, part number covers a wide range of trailer-mounted pump applications. Keep a verified OEM part on hand to avoid unexpected downtime when the seal needs servicing.
Key Features
- OEM Seal Material Integrity — Manufactured to Wacker Neuson's original compression and material standards, maintaining the sealing performance the check valve cover was engineered to deliver.
- Drop-In Check Valve Cover Fit — Seats directly into the 6-inch check valve cover assembly on APT6S and APT6T pumps, replacing the original without rework or adaptation.
- Broad APT6 Series Coverage — Compatible with APT6S w/Skid, APT6T Surge Brake, APT6T Electric Brake, and all corresponding cold weather variants.
- Maintains Flow Integrity — A properly seated cover check valve seal prevents backflow and pressure bleed-off, keeping pump output consistent and protecting internal valve components from wear.
- Verified Wacker Neuson OEM Part — Supplied as a genuine Wacker Neuson component under part number 5100041318, so fitment accuracy is confirmed against the factory parts list.
The cover check valve seal on a 6-inch pump acts as the sealing interface between the check valve cover and the pump body, preventing fluid from bypassing or leaking back through the valve when the pump is operating or at rest. When this seal degrades or fails, the pump may lose prime, exhibit reduced output pressure, or allow fluid backflow that stresses other internal components. Replacing it promptly with a correctly rated OEM seal restores the pump's ability to maintain consistent flow and hold prime reliably across demanding site conditions.
Part Details
| Part Number | 5100041318 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cover Check Valve Seal 6in |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT6S Pump w/Skid | APT6S | 5200018982 |
| APT6T Pump, Surge Brake | APT6T | 5200019646, 5200019647 |
| APT6T Pump, Surge Brake, Cold Weather | APT6T CW | 5200019794, 5200019795 |
| APT6S Pump w/Skid, Cold Weather | APT6S CW | 5200019799 |
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.
