The Wacker Neuson Valve Stem Seal is a genuine OEM component designed for the CRT48-25K and CRT36-23K series ride-on concrete trowels. Sourced directly from Wacker Neuson, this seal is manufactured to the exact tolerances required for proper valve train function in these machines. It fits the CRT48-25K-L, CRT48-25K-H, CRT36-23K-H, and CRT36-25K-H models, covering both 48-inch and 36-inch configurations across low- and high-speed variants. When it comes to engine sealing components, using a genuine OEM part ensures the correct material grade and dimensional match every time.
Key Features
- OEM-Grade Sealing Material — Manufactured to the precise elastomer specification required for valve stem sealing in Wacker Neuson ride-on trowel engines, ensuring correct compression and oil retention at operating temperatures.
- Drop-In Engine Compatibility — Installs directly onto the valve stem in the same position as the original, with no rework needed on the valve guide or stem.
- Broad CRT Series Coverage — Fits the 48-inch CRT48-25K-L and CRT48-25K-H and the 36-inch CRT36-23K-H and CRT36-25K-H ride-on concrete trowels in a single part number.
- Prevents Oil Consumption and Smoke — A correctly seated valve stem seal stops engine oil from migrating past the valve stem into the combustion chamber, preventing blue smoke and excessive oil use during operation.
- Engine Longevity — A failed or worn valve stem seal allows oil into the combustion chamber, accelerating carbon buildup and reducing engine service life on your ride-on trowel.
A valve stem seal sits at the top of each valve guide and controls the thin film of oil that lubricates the valve stem as it moves up and down during engine operation. Its job is to meter just enough oil for lubrication while preventing excess oil from being drawn into the combustion chamber. When a valve stem seal hardens, cracks, or wears out, oil passes freely into the combustion chamber, producing blue exhaust smoke and causing the engine to consume oil at an accelerated rate. Replacing a worn seal promptly protects the engine from downstream damage such as fouled spark plugs, carbon deposits, and scored valve guides.
Part Details
| Part Number | 5000154860 |
|---|---|
| Old Part Number | 0154860 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Valve Stem Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 1220mm/48in Low Speed Ride-On Trowel | CRT48-25K-L | 5000009084 |
| 1220mm/48in High Speed Ride-On Trowel | CRT48-25K-H | 5000009085 |
| 915mm/36in Ride-On High Speed Trowel | CRT36-23K-H | 5000009083 |
| 915mm/36in Ride-On High Speed Trowel | CRT36-25K-H | 5000620027 |
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.
