The Wacker Neuson Crankcase is a genuine OEM component designed for a wide range of Wacker Neuson walk-behind concrete trowels and PT3A centrifugal trash pumps, including the CT36, CT48, CT36AGP, CT36AGT, CT48ADP, CT48ADT, CT36AVP, CT36AVT series trowels and the PT3A pump family. As a factory-sourced part, the is manufactured to the same specifications as the original component installed on the machine, ensuring a correct fit with no guesswork. This crankcase is also compatible with select BPU reversible vibratory plate compactors and other Wacker Neuson engine-driven equipment that share this engine platform. When it is time to rebuild or replace the lower engine assembly, the Wacker Neuson is the part your machine was built around.
Key Features
- Genuine OEM Engine Casting — Manufactured by Wacker Neuson to exact dimensional tolerances, ensuring all bearing bores, oil galleries, and mating surfaces align correctly with the original engine assembly.
- Direct-Fit for CT36 and CT48 Walk-Behind Trowels — Matches the engine mounting and internal architecture of CT36AGP, CT36AGT, CT36AVP, CT36AVT, CT48ADP, CT48ADT, and related CE variants without alteration.
- Compatible Across Multiple Equipment Families — Verified fitment spans walk-behind concrete trowels, PT3A trash pumps, and select BPU plate compactors that share the same engine platform.
- Structural Foundation of the Engine — The crankcase houses the crankshaft, main bearings, and oil reservoir; a cracked, warped, or oil-weeping crankcase will cause progressive lubrication failure and engine seizure if not replaced.
- Sourced from Wacker Neuson's OEM Supply Chain — Carries the same part number (5100000581) used by authorized Wacker Neuson dealers, making verification against your machine's parts manual straightforward.
The crankcase is the structural core of a small engine — it encloses the crankshaft and connecting rod, maintains the oil supply that lubricates all moving internal components, and provides the rigid foundation to which the cylinder, cylinder head, and external ancillaries are bolted. If the crankcase develops a crack, stripped threaded bore, or compromised sealing surface, oil loss and internal contamination follow quickly, leading to accelerated wear or catastrophic engine failure. Replacing a damaged crankcase with the correct OEM part restores the engine's structural integrity and ensures all mating components seat and seal as intended.
Part Details
| Part Number | 5100000581 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Crankcase |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| CT36-8A-V | CT36-8A-V | 5000620832, 5000009442 |
| CT36-8A Trowel | CT36-8A | 5000009439, 5000620831 |
| CT48-8A Trowel | CT48-8A | 5000009449 |
| CT48-8A | CT48-8A EU | 5000620837 |
| 75mm/3in Centrifugal Trash Pum p | PT3A | 5000009098, 5000009101, 5000009240, 5000620800, 5000006729, 5000006730, 5100058535, 5100058536 |
| 915mm/36in CE Walk-behind Trow el | CT36AGP | 5000007596, 5000007595 |
| 915mm/36in CE Walk-behind Trow el | CT36AGP-E | 5000008036, 5000008026 |
| 1220mm/48in Walk-behind Trowel | CT48ADP | 5000007598, 5000007599, 5000008199 |
| 1220mm/48in CE Walk-behind Tro wel | CT48ADP-E | 5000008027, 5000008028 |
| 915mm/36in CE Walk-behind Trow el | CT36AGT-E | 5000007594, 5000008012 |
| 1220mm/48in CE Walk-behind Tro wel | CT48ADT-E | 5000007597, 5000008016 |
| 915mm/36in CE Walk-behind Trow el | CT36AGT | 5000008014, 5000008011 |
| 1220mm/48in Walk-behind Trowel | CT48ADT | 5000008015, 5000008040 |
| BPU 3050A | BPU 3050A | 5000008763 |
| 915mm/36in Variable Speed Walk #NAME? | CT36AVP | 5000009235, 5000009236 |
| HPG100A | HPG100A | 5000009507 |
| BPU 3050A US | BPU 3050A US | 5000610361 |
| 915mm/36in Variable Speed Walk #NAME? | CT36AVT | 5000009233, 5000009234 |
| Single Direction Vibratory Pla te, 25kN, 50cm/20in | BPS 2550A | 5000007528 |
| HPG50A | HPG50A | 5000009509 |
| BPU 3750Ats | BPU 3750Ats | 5000610408 |
| BPU3750Ats | BPU 3750Ats US | 5000610423 |
| Gasoline Reversible Vibratory Plate | BPU 3050 | 5000008955 |
| BPU 4045A US | BPU 4045A US | 5100009663, 5000610403 |
| Reversible Plates | MPU 29A | 5000630244 |
| Vibratory plate BPU 4045A | BPU 4045A | 5000610345 |
| Vibratory Truss Screed, Power Section | HPG100 | 5000008293 |
| Vibratory Truss Screed, Power Section | HPG50 | 5000008294 |
| Vibration Plate | BPU3050A CN | 5100039661 |
| GP3800A | GP3800A | 5100041978 |
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.
