The Wacker Neuson Std Piston is a genuine OEM Std Piston designed for a wide range of Wacker Neuson equipment, including CT36 and CT48 walk-behind concrete power trowels, PT3A centrifugal trash pumps, GP3800A portable generators, and G3.3A and G3.7A portable generators. As a direct OEM component sourced through authorized Wacker Neuson supply channels, part number is manufactured to the exact tolerances required by the engine used across these machine families. This piston is confirmed to fit numerous configurations of the CT36 and CT48 trowel series, multiple GP3800A and GV3800A generator variants, PT3A pump models, and select HPG power section assemblies — making it one of the more broadly applied engine internals in the Wacker Neuson lineup.
Key Features
- OEM-Grade Bore Tolerancing: — Machined to the exact diameter and ring-groove specifications required by the shared engine platform across CT, PT, and GP series equipment, ensuring correct compression and ring seal.
- Drop-In Engine Replacement: — Designed to install directly into the existing cylinder bore with no re-boring or modification, provided the bore is within serviceable limits.
- Broad Cross-Family Fitment: — A single part number covers CT36 and CT48 trowels, PT3A trash pumps, GP3800A and GV3800A generators, and HPG power section units — simplifying parts inventory for multi-machine fleets.
- Compression Integrity: — A correctly fitted piston maintains the combustion chamber seal needed for full engine power output; a worn or damaged piston causes loss of compression, oil burning, and hard starting.
- Genuine Wacker Neuson OEM Part: — Supplied under part number 5000081625, this is an authentic replacement sourced through the Wacker Neuson parts network, not a generic substitute.
The piston is the core reciprocating component inside the engine cylinder. It transfers the force of combustion downward through the connecting rod to the crankshaft, converting the energy of burning fuel into rotational power. When a piston wears beyond spec — through scoring, ring groove wear, or cracking — the engine loses compression, burns oil, and delivers reduced or erratic power output. Replacing a worn piston with the correct OEM part restores the combustion seal and returns the engine to its rated performance level.
Part Details
| Part Number | 5000081625 |
|---|---|
| Old Part Number | 0081625 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Std Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| CT36-8A-V Trowel | CT36-8A-V | 5000009442, 5000620832 |
| CT36-8A Trowel | CT36-8A | 5000009439, 5000620831 |
| CT48-8A Trowel | CT48-8A | 5000009449 |
| Portable Generator | GP3800A | 5000620104, 5000620379, 5000620485, 5000620342, 5000620484, 5000620041, 5000620103, 5000620010 |
| CT48-8A | CT48-8A EU | 5000620837 |
| PT3A | PT3A | 5000009101, 5000009240, 5000009098, 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 |
| 50Hz Portable Generator | G3.3A | 5000008257, 5000008253, 5000008255, 5000008251 |
| 50Hz Portable Generator | G3.3AE | 5000008258, 5000008252, 5000008254, 5000008256, 5000008259 |
| Portable Generator | G3.7A | 5000007189, 5000008044 |
| 915mm/36in Variable Speed Walk #NAME? | CT36AVP | 5000009235, 5000009236 |
| HPG100A | HPG100A | 5000009507 |
| 915mm/36in Variable Speed Walk #NAME? | CT36AVT | 5000009233, 5000009234 |
| Single Direction Vibratory Pla te, 25kN, 50cm/20in | BPS 2550A | 5000007528 |
| HPG50A | HPG50A | 5000009509 |
| Reversible Plates | MPU 29A | 5000630244 |
| Portable Generator, 50Hz | G3.3AI | 5000009036 |
| Value Generator | GV3800A | 5000620409, 5000620287, 5000620334 |
| Vibratory Truss Screed, Power Section | HPG100 | 5000008293 |
| Vibratory Truss Screed, Power Section | HPG50 | 5000008294 |
| Portable Generator | G3.3AIT | 5000009460 |
| GP3800A Generator, EPA | GP3800 | 5000620974, 5000620975, 5000620976 |
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.
