The Wacker Neuson Crankcase Assembly Left is a genuine OEM component designed for the BTS 630 and BTS 635 series cut-off saws, including BTS 630S, BTS 635S, and BTS 635s variants. As a factory-sourced part, the is manufactured to the same specifications as the original, ensuring a direct, trouble-free installation. This assembly is the correct replacement for worn, cracked, or damaged left crankcase halves across the full BTS 630 and BTS 635 model range. Sourcing a genuine Wacker Neuson part means you get verified dimensional accuracy and material quality — critical for a structural engine component like this one.
Key Features
- Genuine OEM Structural Integrity — Cast and machined to exact original tolerances, ensuring proper bearing bore alignment and crankshaft support within the engine.
- Direct-Fit Replacement — Matches original mounting points, gasket surfaces, and port locations for a clean, straightforward swap with no rework needed.
- Broad BTS Series Compatibility — Fits BTS 630, BTS 630S, BTS 635, BTS 635S, and BTS 635s cut-off and floor saw models, covering a wide range of Wacker Neuson saw configurations.
- Engine Sealing Performance — Precision-machined mating surfaces maintain a proper crankcase seal, preventing air leaks that can cause hard starting, rough running, or lean fuel mixture issues.
- Fuel System Safety Compliance — A correctly sealed crankcase is essential for proper two-stroke mixture control; a cracked or warped housing can allow unmetered air ingestion, creating unsafe operating conditions.
The crankcase is the structural foundation of a two-stroke engine, housing the crankshaft, bearings, and the sealed chamber that drives the fuel-air mixture through the engine's induction cycle. On cut-off saws like the BTS 630 and BTS 635 series, the left crankcase half forms one side of this sealed chamber and supports key rotating components. If the crankcase is cracked, warped, or damaged at the mating surface, air leaks develop that disrupt the air-fuel ratio — leading to poor power output, erratic idling, and potential engine seizure if left unaddressed.
Part Details
| Part Number | 5000213604 |
|---|---|
| Old Part Number | 0213604 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Crankcase Assembly Left |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Cut-off saw BTS 635 | BTS 635 | 5000610190, 5000610191 |
| Cut-off saw BTS630 | BTS 630 | 5000610186, 5000610187 |
| Cut-off Saw BTS 635S | BTS 635S | 5000610192, 5000610193, 5000610407 |
| Floor Saw BTS 630S | BTS 630S | 5000610406 |
| BTS635s | BTS635s | 5100005408 |
| BTS635S Cut-off Saw | BTS 635s | 5100005409, 5100005411 |
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.
