Wacker Neuson 5000074678 Valve Tappet

The Wacker Neuson Valve Tappet is a genuine OEM component designed for a wide range of Wacker Neuson equipment, including BFS floor saws, CT and CRT concrete trowels, GP and GV portable generators, PT trash pumps, BPU reversible vibratory plates, RD tandem rollers, and WB power buggies. As a direct OEM replacement, this tappet is manufactured to the same specification as the original, ensuring correct clearances and valve train geometry across all compatible models. Confirmed fitment spans the BFS940, BFS1345, and BFS1350 floor saw series; CT36 and CT48 walk-behind and ride-on trowel families; GP3800, GP5600, and GP6600 generator lines; PT3A and PT4A trash pumps; and select BPU compactor models, among others. Sourcing by part number is the most reliable way to confirm you have the correct tappet for your machine.

Key Features

• Genuine OEM Valve Train Precision — Manufactured to exact Wacker Neuson tolerances, this tappet maintains the correct valve lift and contact geometry that the engine was designed around, preventing premature cam and valve seat wear.
• Drop-In Engine Replacement — Engineered to install directly into the valve train without any machining or shimming, matching the original tappet bore diameter and surface finish for consistent seating.
• Broad Cross-Family Fitment — A single part number covers compatible engines across BFS floor saws, CT and CRT trowels, GP and GV generators, PT trash pumps, BPU vibratory plates, RD tandem rollers, and WB power buggies — confirm your model number before ordering.
• Protects Engine Longevity — A worn or collapsed tappet causes erratic valve timing, loss of compression, and accelerated wear on camshaft lobes; replacing it restores proper valve operation and protects the entire top-end assembly.
• Fuel System and Emissions Compliance — Correct valve timing directly affects combustion efficiency; using the OEM-spec tappet keeps fuel consumption and exhaust output within the engine's designed parameters for EPA/CARB-compliant models in this range.

A valve tappet — also called a valve lifter — sits between the camshaft lobe and the valve stem (or pushrod) inside the engine. As the camshaft rotates, the tappet translates that rotational motion into the linear up-and-down movement needed to open and close the intake and exhaust valves at precisely the right moment. When a tappet wears flat, collapses, or develops excessive clearance, valve timing drifts out of specification — leading to hard starting, loss of power, rough running, and, if left uncorrected, damage to the camshaft and valve seats. Replacing a worn tappet with the correct OEM part restores the valve timing the engine was designed to run on, bringing performance back to spec across whatever machine it powers.

Part Details

Compatibility & Fitment

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.