The Wacker Neuson Exhaust Valve is a genuine OEM exhaust valve designed for CT30ADT walk-behind trowels and the PDT2A, PDI2A, PDT3A, and PDI3A series. As a factory-sourced component, it meets the exact material and dimensional specifications set by Wacker Neuson, ensuring a proper drop-in fit without the guesswork of adapting an off-spec part. Verified against multiple CT30ADT and PDI/PDT configurations, this valve is the correct service replacement to restore engine performance to original operating condition.
Key Features
- OEM Valve Seat and Face Geometry — Manufactured to Wacker Neuson's exact sealing angle and surface finish spec, ensuring full combustion chamber seal at operating temperatures.
- Direct Engine Drop-In — Installs into the cylinder head using the same valve guide and spring retainer arrangement as the original, requiring no machining or modification to surrounding components.
- Broad PDT and PDI Series Coverage — Confirmed fitment across CT30ADT walk-behind trowels and the PDT2A, PDI2A, PDT3A, PDI3A, and PDI3A(I) series in a single part number.
- Exhaust Gas Containment at Full Load — A correctly functioning exhaust valve seals completely on each stroke, preserving compression and preventing hot exhaust gases from back-flowing into the intake tract, which causes power loss and overheating.
- Emissions and Engine Safety Compliance — A worn or burned exhaust valve allows uncombusted gases to escape the combustion chamber, pushing engine-out emissions out of specification and risking serious engine damage under sustained load.
The exhaust valve sits in the cylinder head and controls the release of burned combustion gases from the engine cylinder after each power stroke. It opens briefly to vent exhaust, then seals tightly to allow the next intake and compression cycle to build full pressure. When an exhaust valve wears, burns, or loses its seating seal, compression drops, the engine runs rough, overheats, and loses the power output needed to drive trowel blades or pump mechanisms at rated speed. Replacing a failed valve promptly prevents collateral damage to the valve seat, piston, and cylinder head.
Part Details
| Part Number | 5100028593 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Exhaust Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 762mm/30in CE Walk-behind Trow el | CT30ADT-E | 5000007587, 5000008002 |
| 762mm/30in Walk-behind Trowel | CT30ADT | 5000008001, 5000008197 |
| PDT2A | PDT2A | 5000620769 |
| PDI2A(I) | PDI2A(I) | 5000620772 |
| PDT3A | PDT3A | 5000620773 |
| PDI3A | PDI3A | 5000620775 |
| PDI3A(I) | PDI3A(I) | 5000620776 |
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.
