The Multiquip 508619 Hex Head Bolt 3/8 NC x 4" is a genuine OEM fastener designed for the AR13HC, AR13HA/HAR, and AR13H ride-on asphalt rollers. As a direct OEM replacement, 508619 is manufactured to the exact thread specification and dimensional standard required by these machines, ensuring a secure, properly torqued installation without guesswork. Sourced directly through Multiquip's authorized parts network and sold by DHS Equipment, this bolt is the correct choice when replacing worn, damaged, or missing hardware on your AR13 series roller.
Key Features
- Genuine OEM Specification: — Manufactured to the exact 3/8 NC thread pitch and 4" length specified for the AR13 roller platform, so thread engagement and clamping load meet the original design intent.
- Correct Hardware for the Application: — Threads in directly to the factory-specified location on AR13HC, AR13HA/HAR, and AR13H models with no sizing adjustments or modifications needed at the point of installation.
- AR13 Roller Series Fitment: — Confirmed fit across the AR13HC, AR13HA/HAR, and AR13H Honda-powered ride-on asphalt roller family.
- Structural Integrity Where It Counts: — A correctly sized and properly torqued bolt maintains joint clamping force on the roller's structural assemblies; an undersized or incorrect fastener risks joint movement, component misalignment, and accelerated wear.
- Torque and Safety Compliance: — Using the OEM-specified fastener grade and dimensions is essential on compaction and rolling equipment where vibration loads can cause incorrect hardware to loosen or fail in service.
A hex head bolt serves as a threaded fastener that clamps two or more components together by converting applied torque into clamping force. On ride-on asphalt rollers like the AR13 series, fasteners throughout the frame, drum assembly, and drivetrain are subjected to constant vibration and dynamic loading — conditions that demand the correct grade, thread form, and length to maintain joint integrity over time. Using an incorrect bolt, whether too short to achieve full thread engagement or the wrong thread pitch, can result in joint loosening, structural movement, or fastener failure, all of which can lead to component damage or unsafe operating conditions.
For questions about fitment or to confirm this is the right part for your machine, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | 508619 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hex Head Bolt 3/8 NC x 4" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rollers | AR13HC |
| Rollers | AR13HA/HAR |
| Rollers | AR13H |
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.
