The Wacker Neuson is a genuine OEM O-Ring 30 X 3 designed for the BTS series gasoline cut-off saws. This factory-sourced seal is manufactured to exact dimensional tolerances — 30 mm inner diameter, 3 mm cross-section — ensuring a proper compression fit within the fuel or fluid circuit it services. Confirmed fitment covers a wide range of BTS models including the BTS 930, BTS 935, BTS 1030, BTS 1035, and BTS 1140 L3 power cutters. As a genuine Wacker Neuson part, the matches the original specification installed at the factory, so you can restore a proper seal without guesswork.
Key Features
- Exact Dimensional Spec — 30 mm inner diameter with a 3 mm cross-section delivers the correct compression ratio for a leak-free seal in the BTS fuel or fluid system.
- Genuine OEM Material Grade — sourced directly from Wacker Neuson, this O-ring uses the same compound and durometer as the original, resisting fuel, oil, and heat degradation over extended service cycles.
- Drop-In Installation — seats into the original groove without stretching or trimming; no gasket cement or adapter required.
- Wide BTS Series Coverage — fits BTS 930, BTS 935, BTS 1030, BTS 1035, and BTS 1140 L3 cut-off saws, including both standard and L3 (Tier-compliant) engine variants.
- Leak Prevention — a degraded or cracked O-ring allows fuel or hydraulic fluid to bypass the seal, causing pressure loss, external leaks, and potential saw shutdown mid-cut; replacing it restores system integrity immediately.
An O-ring is a precision elastomeric seal that sits in a machined groove between two mating surfaces or components, creating a pressure-tight barrier that prevents fluid or fuel from escaping the system. In a gasoline cut-off saw like the BTS series, O-rings are used throughout the fuel delivery circuit and ancillary fluid connections where metal-to-metal joints alone cannot maintain a seal. When an O-ring hardens, cracks, or takes a permanent set from heat cycling, it loses its ability to compress evenly against the mating surfaces — allowing leaks that reduce fuel pressure, create a fire hazard, and cause the saw to run poorly or not at all. Replacing a worn O-ring with the correct-specification part like the 5000109748 restores the sealed system and returns the machine to safe, reliable operation.
Part Details
| Part Number | 5000109748 |
|---|---|
| Old Part Number | 0109748 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring 30 X 3 |
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 |
| BTS 1140L3 SAW | BTS 1140 L3 | 5000610063, 5000610078 |
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.
