The Multiquip EE59525 Special Jam Nut for E-Z Lube is a genuine OEM component designed for Multiquip trailer models including TRLR45H, TRLR45E, TRLR502XFH, TRLR502XFE, TRLRSG1600XFH, and TRLRSG1600XFE. As an OEM part, EE59525 is manufactured to the exact specifications required by these trailer assemblies, ensuring a correct and secure fit within the E-Z Lube hub system. Sourced directly through Multiquip's authorized parts network, this jam nut is a dependable choice when servicing or rebuilding the lube-point assembly on compatible trailer axles. Verify your model code against the fitment list above before ordering to confirm compatibility.
Key Features
- OEM-Spec Thread Integrity — Manufactured to the exact thread pitch and dimensional tolerances required by the E-Z Lube hub assembly, ensuring the nut seats and locks correctly without risk of cross-threading or backing off.
- Direct-Fit for E-Z Lube Hub Systems — Engineered specifically for the E-Z Lube lube-point configuration used on Multiquip trailers, so it installs in place of the original without modification to the hub or spindle.
- Broad Trailer Fitment — Compatible with TRLR45H, TRLR45E, TRLR502XFH, TRLR502XFE, TRLRSG1600XFH, and TRLRSG1600XFE trailer models.
- Maintains Bearing Lubrication Function — A correctly torqued jam nut keeps the E-Z Lube cap sealed and pressurized, allowing grease to flow to the wheel bearing as intended and preventing premature bearing wear.
- Safety-Critical Fastener — The jam nut plays a direct role in securing the hub assembly on a towed trailer; using the correct OEM specification part helps maintain axle integrity under load and in transit.
The jam nut on an E-Z Lube hub assembly serves as the locking fastener that secures the hub cap and maintains proper preload on the wheel bearing. On E-Z Lube systems, the hub cap doubles as a grease reservoir, and the jam nut must hold the cap firmly in position so that grease pressure is maintained and lubricant reaches the bearing surfaces during operation. If the jam nut is missing, stripped, or improperly torqued, the hub cap can loosen, grease can escape, and the wheel bearing becomes vulnerable to heat buildup and accelerated wear — potentially leading to bearing failure on a towed load.
Part Details
| Part Number | EE59525 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Special Jam Nut for E-Z Lube |
Compatibility & Fitment
| Name | Model |
|---|---|
| Trailers | TRLR45H |
| Trailers | TRLR45E |
| Trailers | TRLR502XFH |
| Trailers | TRLR502XFE |
| Trailers | TRLRSG1600XFH |
| Trailers | TRLRSG1600XFE |
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.
