The Wacker Neuson is a genuine OEM Repair Kit Accel Pump Dia. designed for CRT48-25K-L, CRT48-25K-H, CRT36-23K-H, and CRT36-25K-H ride-on concrete trowels. Sourced directly from Wacker Neuson, this kit delivers the exact components needed to restore the accelerator pump diaphragm system to original operating condition. It covers both 48-inch and 36-inch CRT platform variants, making it a go-to rebuild solution for operators running multiple trowel sizes on the same crew. Confirm your model number before ordering to ensure a correct application match.
Key Features
- OEM Diaphragm-Grade Materials — Genuine Wacker Neuson components ensure the accelerator pump diaphragm meets original fuel-metering tolerances, not just approximate fits.
- Direct-Swap Rebuild Solution — All kit components are pre-matched to the CRT carb assembly, so parts drop into the existing accelerator pump bore without rework or sourcing individual pieces separately.
- Broad CRT Platform 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 trowel models in a single kit.
- Restores Throttle Response and Fuel Delivery — A worn or cracked accelerator pump diaphragm causes hesitation, stumbling, or stalling under load; this kit returns crisp, consistent throttle response to keep finishing passes smooth.
- Fuel System Integrity — Correct diaphragm sealing prevents unmetered fuel from bypassing the pump circuit, which protects engine combustion consistency and reduces the risk of carburetor flooding.
The accelerator pump diaphragm is a critical component inside the carburetor that delivers a precise shot of fuel when the throttle is opened quickly. Without it functioning correctly, the engine lean-stumbles or hesitates during acceleration, which interrupts the smooth, consistent blade speed that ride-on concrete trowel finishing demands. Over time, the diaphragm membrane fatigues and cracks from repeated flex cycles and fuel exposure, and a repair kit like the Wacker Neuson 5000154931 restores the pump circuit to full function without replacing the entire carburetor assembly.
Part Details
| Part Number | 5000154931 |
|---|---|
| Old Part Number | 0154931 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Repair Kit Accel Pump Dia. |
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.
Wacker Neuson
Wacker Neuson 5000154932 Repr Kit, Accel Pump Seal/Bush
