The Wacker Neuson 213749 is a genuine OEM Magneto Armature designed for the BTS 630, BTS 635, and BTS 635S gasoline cut-off saws. As a factory-sourced component, it meets the original design specifications for the ignition system in these machines, ensuring correct output timing and reliable spark generation. This part is a direct OEM replacement sourced through Wacker Neuson's authorized parts program, making it the recommended choice for technicians and operators performing ignition system service on BTS-series saws. Confirmed fitment spans the full BTS 630 and BTS 635 family, including the BTS 635S variant.
Key Features
- Correct Ignition Output: — Engineered to deliver the precise magnetic field strength and pole timing required by the BTS-series ignition system — no misfires, no weak spark.
- Genuine OEM Component: — Sourced directly from Wacker Neuson, this armature matches the original part in coil winding, air gap tolerance, and mounting geometry.
- Drop-In Installation: — Mounts to the existing flywheel and ignition bracket with the same bolt pattern as the original, requiring no drilling or modification to the ignition housing.
- Broad BTS-Series Coverage: — Fits BTS 630, BTS 635, and BTS 635S cut-off saws, covering both standard and S-variant configurations across multiple serial ranges.
- Ignition System Safety: — A correctly functioning magneto armature ensures consistent ignition timing, which is critical for controlled starting and preventing unintended engine run-on in a cut-off saw application.
The magneto armature is the core of the engine's ignition system. As the flywheel spins, the armature's coils pass through the flywheel's magnetic field and generate the high-voltage pulse needed to fire the spark plug at the correct moment in the combustion cycle. If the armature fails — whether through coil breakdown, cracking, or air gap drift — the engine will produce a weak spark or no spark at all, resulting in hard starting or a complete no-start condition. Replacing a faulty armature restores clean, consistent ignition and gets the saw back to full cutting performance.
Part Details
| Part Number | 213749 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Magneto Armature |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Cut-off saw BTS 635 | BTS 635 | 5000610190, 5000610191 |
| BTS630 SAW, 12", 20mm arbor | BTS 630 | 5000610187, 5000610186 |
| 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.
