The Multiquip 521013 AX 37 Belt is a genuine OEM drive belt designed for SP4 flat saws and SP6457 pavement saws. As a factory-sourced component, this belt is manufactured to the exact length, width, and cross-section profile required for proper power transfer on these machines. Verified fitment for SP4 and SP6457 models means you get a direct swap with no guesswork. DHS Equipment supplies this as an authorized Multiquip OEM part, so you can order with confidence knowing the part number matches your machine.
Key Features
- Exact OEM Cross-Section and Length — AX 37 cogged construction matches the factory-specified profile, ensuring proper tension and engagement on the drive system without stretching or slipping.
- Direct Replacement for SP4 and SP6457 — Engineered specifically for Multiquip SP4 flat saws and SP6457 pavement saws, this belt drops into the existing drive configuration without modification.
- Consistent Power Transfer — A correctly sized drive belt maintains steady power delivery from the engine to the blade, supporting clean, consistent cutting performance across pavement and flat-saw applications.
- Genuine OEM Part — Sourced directly through Multiquip's authorized parts network, part this part meets the same material and dimensional standards as the belt that left the factory with your machine.
- Blade Safety Integrity — A worn or undersized belt can cause blade slip or unexpected loss of drive engagement on an active saw — using the correct OEM belt maintains predictable, controlled blade operation.
A drive belt transmits engine power to the cutting blade assembly on flat and pavement saws. The AX designation indicates a cogged, raw-edge construction that reduces heat buildup and flexes more efficiently around smaller sheaves compared to a standard wrapped belt. When a drive belt stretches, cracks, or loses tension, the blade loses consistent rotational speed, resulting in uneven cuts, increased vibration, and potential blade stall under load. Replacing a worn belt with the correct OEM spec — part 521013 — restores full, controlled power delivery to the blade.
Part Details
| Part Number | 521013 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | AX 37 Belt |
Compatibility & Fitment
| Name | Model |
|---|---|
| Flat Saws | SP4 |
| MQ Pavement Saws | SP6457 |
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.
