The Multiquip EM969079 is a genuine OEM Nylon Lock Nut 1/4" used across a wide range of Multiquip equipment, including AR13H, AR13D, and AR13HC asphalt ride-on rollers, V303E and V304E walk-behind vibratory rollers, C30HD series concrete pumps, and MQ600TD trash pumps. As a genuine OEM fastener, EM969079 meets the original design specification for thread engagement, torque retention, and nylon insert locking performance. This nut is a direct replacement for worn, stripped, or missing hardware, ensuring structural connections stay secure under the vibration and load cycles typical of compaction and pumping equipment. Verify your model code against the fitment list to confirm compatibility before ordering.
Key Features
- Genuine OEM Nylon Insert Grade — The nylon collar is matched to the original specification, delivering the correct prevailing torque that resists self-loosening under continuous vibration.
- 1/4" Thread Size, Drop-In Replacement — Threads directly onto existing 1/4" fastener points with no rework to the mating hardware required.
- Broad Equipment Compatibility — Fits AR13H, AR13D, AR13HC, and AR13HA/HAR ride-on rollers; V303E, V304EH, V304ER, and V304EY walk-behind rollers; C30HD series concrete pumps; and MQ600TD trash pump models.
- Vibration Resistance Where It Counts — The nylon locking insert prevents fastener back-out caused by the constant vibration generated during compaction passes and pump operation, keeping critical assemblies torqued correctly over time.
- Cost-Effective Hardware Refresh — Replacing degraded or missing lock nuts at each service interval prevents fastener-related failures that can escalate into costly structural or component damage.
A nylon lock nut uses an integrated nylon insert at the top of the nut that deforms slightly around the bolt threads when tightened, creating a friction-based locking action that resists loosening from vibration, shock loads, and thermal cycling. Unlike standard hex nuts, nylon lock nuts maintain their clamping force even when equipment is subjected to the repetitive mechanical stress common in rollers, concrete pumps, and trash pumps. When a lock nut is worn, cross-threaded, or missing entirely, the fastened joint can progressively loosen, leading to component misalignment, accelerated wear on surrounding parts, or outright fastener failure during operation.
Part Details
| Part Number | EM969079 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Nylon Lock Nut 1/4" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rollers | AR13HA/HAR |
| Rollers | AR13H |
| Rollers | AR13D |
| Mayco Pumps | C30HDZ |
| Mayco Pumps | C30HDG |
| Rollers | V303E |
| Rollers | AR13HC |
| Trash Pumps | MQ600TD80-TLRP |
| Trash Pumps | MQ600TD80-TLRB |
| Rollers | V304EY |
| Rollers | V304ER |
| Rollers | V304EH |
| Mayco Pumps | C30HDNI Zenith |
| Mayco Pumps | C30HDN |
| Mayco Pumps | C30HDNI Precision |
| Mayco Pumps | C30HDNI |
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.
