The Wacker Neuson Woodruff Key 3 X 3.7 is a genuine OEM component designed for the BTS series gasoline cut-off saws, including the BTS 930, BTS 935, BTS 1030, BTS 1035, BTS 1140, BTS 11, and BTS 13 models. As a direct OEM replacement, this part is manufactured to the exact tolerances required by Wacker Neuson, ensuring it seats correctly in the keyway and delivers consistent torque transfer between shaft and hub. Confirmed fitment spans the full BTS cut-off saw lineup, covering both standard and L3 engine variants across multiple machine numbers. Keep a spare on hand — this small component plays a critical role in drivetrain integrity, and having the correct part number ready means less time off the cut.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to Wacker Neuson's exact 3 x 3.7 mm specification, ensuring the key fills the keyway without play or slop that could cause shaft damage.
- Positive Torque Lock — Seats firmly between shaft and hub to transmit rotational force cleanly, preventing slippage under the high-cycle load demands of a cut-off saw.
- Broad BTS Series Compatibility — Fits BTS 930, BTS 935, BTS 1030, BTS 1035, and BTS 1140 cut-off saws, including standard and L3 engine variants with both 20mm and 1-inch arbor configurations.
- Drop-In Installation — Matches the original keyway geometry exactly, so it drops into position during shaft reassembly without any filing, shimming, or secondary fitting.
- Protects Surrounding Drivetrain Components — A correctly sized Woodruff Key prevents the fretting and wallowing of the keyway that occurs when an undersized or worn key is left in service, protecting the shaft and hub from costly secondary damage.
- Fuel System and Blade Drive Integrity — On cut-off saws, a failed or sheared key can cause sudden loss of blade drive; using the correct OEM part maintains safe, predictable blade engagement.
A Woodruff Key is a small, semi-circular metal key that locks a rotating component — such as a clutch drum, flywheel, or drive hub — to a shaft, ensuring both parts turn together as a single unit. On a cut-off saw like the BTS series, it sits in a matching slot milled into both the shaft and the hub, transmitting the engine's torque directly to the blade drive system. When a Woodruff Key shears or wears, the hub can spin freely on the shaft, resulting in loss of blade drive, erratic engagement, or vibration that accelerates wear across adjacent components.
Part Details
| Part Number | 5000013449 |
|---|---|
| Old Part Number | 0013449 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Woodruff Key 3 X 3.7 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Power Cutter BTS 1035 L3 | BTS 1035 L3 | 5000008912, 5000008990, 5000610076, 5000610182 |
| Cut-Off Saws | BTS 1030 L3 | 5000008989, 5000610075 |
| Cut-Off Saws | BTS 930 L3 | 5000008987, 5000610073 |
| Cut-Off Saws | BTS 935 L3 | 5000008988, 5000610074 |
| Cut-off Saw with 20mm Arbor | BTS 930 | 5000008340 |
| Cut-off Saw with 1in Arbor | BTS 935 | 5000008341 |
| Cut-off Saw with 1in Arbor | BTS 1035 | 5000007975 |
| Cut-off Saw with 20mm Arbor | BTS 1030 | 5000008339 |
| Hydrostatic Double Drum Vibrat ory Roller | RD10 | 5000008056 |
| BTS 1140L3 SAW | BTS 1140 L3 | 5000610063, 5000610078 |
| Cut-off Saw with 1in Arbor | BTS 13 | 5000007338 |
| Cut-off saw with 7/8in Arbor | BTS 11 | 5000007421 |
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.
