The Wacker Neuson 5100026383 is a genuine OEM Exhaust Valve Seat designed for DPU80 and DPU90 series reversible vibratory plate compactors. Sourced directly from Wacker Neuson, this part meets the exact dimensional and material specifications required for correct sealing performance in the engine's exhaust circuit. It is compatible across a broad range of DPU80 and DPU90 variants, including Lec and Lem engine configurations in both standard and reversible (r) models. Verified fitment spans models such as the DPU80Lec770, DPU80Lec670, DPU90Lec670, DPU90Lec770, DPU80rLec770, DPU80Lem770, DPU90Lem770, DPU80rLem770, and their US-market counterparts.
Key Features
- Exact OEM Material Specification — Manufactured to Wacker Neuson's precise hardness and dimensional tolerances for exhaust valve seat applications, ensuring consistent sealing contact under high-temperature exhaust conditions.
- Direct Drop-In Installation — Engineered to press into the cylinder head seat bore to OEM dimensions, requiring no machining or custom fitting beyond standard valve seat installation procedure.
- Broad DPU80 and DPU90 Coverage — Fits Lec and Lem engine variants in both standard and reversible configurations, including US-market models, across the DPU80 and DPU90 reversible plate compactor families.
- Restores Full Compression and Exhaust Sealing — A worn or damaged exhaust valve seat allows combustion gases to leak past the valve, causing power loss, rough running, and accelerated engine wear. Replacing it returns the engine to correct operating condition.
- Fuel System and Combustion Integrity — Proper exhaust valve seating is critical to maintaining correct cylinder compression; a failed seat can lead to hard starting, overheating, and unburned fuel entering the exhaust circuit.
The exhaust valve seat is a precision-machined ring pressed into the cylinder head that provides the hardened seating surface against which the exhaust valve closes after each combustion cycle. It is responsible for forming an airtight seal that retains compression and prevents hot exhaust gases from escaping into the cooling or oil systems. Over time, heat cycling and mechanical contact cause the seat to wear, pit, or crack — symptoms that typically present as declining engine compression, loss of power output, or difficulty starting the compactor. Replacing the seat at the correct service interval or at first sign of valve-related issues protects the cylinder head from further damage and restores full engine output.
Part Details
| Part Number | 5100026383 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Exhaust Valve Seat |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| DPU80Lec770 | DPU80Lec770 | 5100026787 |
| DPU80Lec670 | DPU80Lec670 | 5100027032 |
| DPU90Lec670 | DPU90Lec670 | 5100027534 |
| DPU90Lec770 | DPU90Lec770 | 5100027536 |
| DPU90Lec770 US | DPU90Lec770 US | 5100028357 |
| DPU80rLec770 | DPU80rLec770 | 5100027034 |
| DPU80Lem770 | DPU80Lem770 | 5100018444 |
| DPU90Lem770 | DPU90Lem770 | 5100024731 |
| DPU80Lem670 | DPU80Lem670 | 5100024695 |
| DPU80rLec670 | DPU80rLec670 | 5100027033 |
| DPU80rLem770 | DPU80rLem770 | 5100024698 |
| DPU90Lem770 US | DPU90Lem770 US | 5100024732 |
| DPU80rLem670 | DPU80rLem670 | 5100024697 |
| DPU90rLec770 US | DPU90rLec770 US | 5100028359 |
| DPU90rLem770 | DPU90rLem770 US | 5100028358 |
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.
