The Wacker Neuson Tappet is a genuine OEM component designed for the D4000 Diesel Power Unit for Internal Vibrator, L5000/225 ISO, and L5000/225 ANSI units. As a direct-from-manufacturer part, it meets the exact dimensional and material specifications Wacker Neuson built into these machines. This tappet is a precise drop-in replacement, ensuring the valve train operates exactly as intended across all confirmed fitment models. If your D4000 or L5000/225 series unit is showing signs of worn valve actuation or irregular engine behavior, replacing the Tappet is a straightforward step toward restoring full operation.
Key Features
- OEM-Grade Surface Hardness — Manufactured to Wacker Neuson's exact material and hardness specifications, ensuring consistent contact geometry between the camshaft lobe and valve stem.
- Direct Drop-In Installation — Seats into the original tappet bore without machining or adjustment, maintaining correct valve clearance from the moment it goes in.
- Confirmed Fitment — Compatible with the D4000 Diesel Power Unit for Internal Vibrator, L5000/225 ISO, and L5000/225 ANSI models.
- Consistent Valve Timing — A correctly functioning tappet transfers camshaft motion to the valve with precision; a worn tappet causes erratic valve lift, leading to rough running, loss of power, and increased engine wear.
- Genuine Wacker Neuson Part — Sourced directly through authorized Wacker Neuson supply channels, so the part number, form, and fit match the original specification exactly.
A tappet — sometimes called a valve lifter — sits between the camshaft and the valve stem in a reciprocating engine, translating the rotating motion of the camshaft into the up-and-down motion that opens and closes each engine valve. It controls the timing and lift of the intake and exhaust valves, which directly determines how efficiently the engine breathes and burns fuel. When a tappet wears down or develops pitting on its contact face, valve timing becomes inconsistent, resulting in symptoms such as tapping noises, reduced power output, and, if left unaddressed, accelerated wear to the camshaft itself.
Part Details
| Part Number | 5000206178 |
|---|---|
| Old Part Number | 0206178 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Tappet |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Diesel Power Unit for Internal Vibrator | D4000 | 5000009091 |
| L5000/225 ISO | L5000/225 ISO | 5000610329 |
| L5000/225 ANSI | L5000/225 ANSI | 5000610341 |
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.
