The Multiquip 55803 is a genuine OEM Hex Bolt M10x1.25x40 P54/KA/KA4B designed for KA4B series RAMMAX roller equipment. As a factory-original fastener, this bolt is manufactured to the exact thread pitch, diameter, and length specification required for proper assembly and torque retention on the machine. Sourced directly through Multiquip's authorized parts network, the part ensures you are installing the correct hardware the first time. DHS Equipment stocks this part to keep your roller maintenance on schedule.
Key Features
- OEM Thread Precision — Manufactured to M10x1.25x40 specification, ensuring correct thread engagement and full torque capacity without cross-threading risk.
- Direct Hardware Match — Matches the original bolt used in KA4B assembly, seating flush and torquing to spec without modification or shimming.
- KA4B Roller Fitment — Confirmed fit for the KA4B RAMMAX walk-behind roller, a compact vibratory machine commonly used in trench and foundation compaction work.
- Structural Integrity Under Vibration — Purpose-matched to handle the sustained mechanical vibration generated during roller operation, resisting loosening over extended run time.
- Genuine Multiquip OEM Hardware — Produced to the same material grade and dimensional standard as the original part, eliminating the guesswork of aftermarket substitution on critical fastener positions.
A hex bolt may be a small component, but using the wrong thread pitch or an undersized fastener in a vibratory machine can lead to joint failure, component misalignment, or structural damage over time. The M10x1.25x40 specification on this bolt is not interchangeable with coarse-thread or shorter variants — the fine thread pitch provides greater clamping force retention in high-vibration environments typical of roller operation. When this fastener wears, stretches, or is replaced with an incorrect substitute, it can compromise the integrity of the assembly it secures, leading to accelerated wear on surrounding components.
Part Details
| Part Number | 55803 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hex Bolt M10x1.25x40 P54/KA/KA4B |
Compatibility & Fitment
| Name | Model |
|---|---|
| KA4B | KA4B |
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.
