The Multiquip 0481100100 Filter O Ring is a genuine OEM sealing component designed for BLW-400SSW and TLW-300SS welder equipment. As a direct OEM replacement, it meets the original design specification, ensuring a correct seal between mating filter surfaces. This part is confirmed compatible with the BLW-400SSW and TLW-300SS models, making it a straightforward swap during routine service or filter maintenance. Sourcing the correct O Ring matters — an improper or worn seal allows contamination past the filter housing, compromising fluid integrity and machine performance.
Key Features
- OEM-Grade Sealing Material — Manufactured to the original compound and durometer specification, delivering the compression and chemical resistance required in a filter sealing application.
- Drop-In Filter Housing Fit — Sized to seat correctly in the filter housing groove on BLW-400SSW and TLW-300SS welders, restoring a leak-free connection without modification.
- Confirmed Welder Fitment — Verified for use on BLW-400SSW and TLW-300SS Multiquip welder models; use the model code to confirm before ordering.
- Prevents Contamination Bypass — A properly seated O Ring keeps unfiltered fluid from bypassing the filter element, protecting downstream components from particulate wear.
- Essential Service Item — Replacing the O Ring at every filter service interval is a low-cost step that protects significantly more expensive internal components from premature wear.
A filter O Ring creates the primary pressure seal between the filter housing and its mating surface, preventing fluid or air from bypassing the filter element. When this seal is intact, the filtration system performs as intended — contaminants are captured before they can reach sensitive components. When the O Ring hardens, cracks, or takes a permanent set from heat cycling, it loses its ability to maintain that seal, allowing leaks or unfiltered fluid to pass through and accelerating wear throughout the system.
Part Details
| Part Number | 0481100100 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Filter O Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | BLW-400SSW |
| Welders | TLW-300SS |
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.
