The Multiquip 58407 Lock Washer M18 is a genuine OEM fastener component designed for MVH-series reversible plate compactors and RW-series walk-behind rollers. This OEM part is sourced directly through Multiquip's authorized parts program, ensuring the correct material specification, hardness rating, and dimensional tolerancing for the M18 fastener position it occupies. Verified fitment includes MVH308, MVH408, and MVH508 plate compactors across GH, GV, DE, and DZ engine configurations, as well as RW1403HF, RW1404MR, RW1504HF, and RW1810 rollers. When you need to restore a fastener assembly to its original clamping specification, part 58407 is the correct factory-grade choice.
Key Features
- Genuine OEM Hardness and Temper — Manufactured to the same material grade as the original, ensuring proper spring tension and bite under the M18 fastener load — critical on high-vibration compaction equipment.
- Drop-In Fastener Compatibility — Sized precisely for M18 hardware; seats flush against mating surfaces without shimming or modification, restoring correct clamp force on reassembly.
- Broad MVH and RW Series Coverage — Confirmed fitment across MVH308, MVH408, and MVH508 reversible plate compactors and RW1403HF, RW1404MR, RW1504HF, and RW1810 rollers.
- Vibration Resistance — Lock washers on compaction equipment endure continuous high-frequency vibration cycles; a correctly spec'd OEM washer maintains fastener preload and prevents progressive loosening during operation.
- Fastener Integrity Under Load — A worn, flattened, or incorrect lock washer allows critical fasteners to back out during operation, risking component misalignment or structural failure — part 58407 restores the assembly to its designed holding strength.
A lock washer is a deceptively simple but mechanically essential component in any bolted assembly on vibrating equipment. Positioned between the fastener head or nut and the mating surface, it creates a controlled spring load that resists rotational loosening caused by continuous vibration — exactly the operating condition present in plate compactors and walk-behind rollers. When a lock washer fatigues, flattens, or is replaced with an incorrect size, the fastener loses preload and can gradually back out, compromising the integrity of the assembly it secures. Using the correct OEM-grade replacement ensures the washer delivers the intended clamping force throughout the service interval.
Part Details
| Part Number | 58407 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Lock Washer M18 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Plate Compactors | MVH508GH |
| Plate Compactors | MVH308DE |
| Plate Compactors | MVH508DE |
| Plate Compactors | MVH408DE |
| Plate Compactors | MVH308DZ |
| Plate Compactors | MVH508GV |
| Plate Compactors | MVH508DZ |
| Plate Compactors | MVH408GV |
| Plate Compactors | MVH408GH |
| Plate Compactors | MVH408DZ |
| Plate Compactors | MVH308GH |
| Rollers | RW1403HF |
| Rollers | RW1404MR |
| Rollers | RW1504HF up to S/N 1534188 |
| Rollers | RW1404MR S/N 326075 and up |
| Rollers | RW1810 |
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.
