The Genie 28646GT is a genuine OEM Grease Zerk, 1/8 NPT built for a wide range of Genie equipment, including S and SX telescopic boom lifts, Z and ZX articulating boom lifts, GS scissor lifts, GTH telehandlers, TZ and TMZ trailer-mounted booms, and select Genie light towers. As a direct OEM replacement, this grease zerk matches the original specification and threads directly into the lubrication points it was designed for. Cross-reference part number 28646GT against your machine's parts manual to confirm it is the correct fitting for your unit before ordering.
Key Features
- Genuine OEM Specification — Manufactured to Genie's original dimensional and material standards, ensuring the 1/8 NPT thread form and ball-check internals match the specification of the factory-installed fitting.
- Direct Thread-In Replacement — The 1/8 NPT thread engages existing ports without modification, seating cleanly against the grease point to prevent leakage during lubrication.
- Broad Genie Fitment — Compatible across multiple Genie equipment families, including S and SX telescopic booms, Z and ZX articulating booms, GS scissor lifts, GTH telehandlers, TZ and TMZ trailer-mounted booms, and AL light towers.
- Lubrication Integrity — A correctly functioning grease zerk allows grease to flow in under pressure and seals the fitting when the grease gun is removed, keeping contamination out of the joint.
- Low-Cost, High-Impact Maintenance Item — A damaged or seized zerk is one of the most common reasons a pivot point goes unlubricated; replacing it promptly with the correct OEM part keeps the maintenance schedule on track.
A grease zerk — also called a grease fitting or grease nipple — is a small valve installed at a pivot point, pin, or bearing that allows grease to be injected into the joint under pressure. Inside the fitting, a spring-loaded ball check opens when a grease gun is applied, lets grease flow into the joint, then closes to seal the port when the gun is removed, preventing dirt and moisture from entering. When a zerk becomes stripped, corroded, or broken, grease cannot reach the joint during service intervals, which leads to accelerated wear on pins and bushings. Replacing a failed zerk with the correct OEM part — the Genie 28646GT, 1/8 NPT — restores the lubrication point and protects the surrounding components.
Part Details
| Part Number | 28646GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Grease Zerk, 1/8 NPT |
Compatibility & Fitment
| Name | Models |
|---|---|
| AL4 | AL4 |
| AL5 | AL5 |
| GS-3384 | GS-3384 |
| GS-5390 | GS-5390 |
| GTH-636 | GTH-636 |
| GTH-1048 | GTH-1048 |
| GTH-1056 | GTH-1056 |
| S-45 XC | S-45 XC |
| S-60 | S-60 |
| S-60 DC | S-60 DC |
| S-60 FE Hybrid | S-60 FE Hybrid |
| S-60 J | S-60 J |
| S-65 | S-65 |
| S-65 XC | S-65 XC |
| S-80 J | S-80 J |
| S-85 XC | S-85 XC |
| S-100HD | S-100HD |
| S-120HD | S-120HD |
| SX-125 XC | SX-125 XC |
| SX-135 XC | SX-135 XC |
| SX-150 | SX-150 |
| SX-180 | SX-180 |
| TMZ-34/19 | TMZ-34/19 |
| TZ-34/20 | TZ-34/20 |
| TZ-50 | TZ-50 |
| Z-20/8 | Z-20/8 |
| Z-20/8N | Z-20/8N |
| Z-25/8 | Z-25/8 |
| Z-33 DC Power | Z-33 DC Power |
| Z-34 IC | Z-34 IC |
| Z-34/22 IC | Z-34/22 IC |
| Z-45 XC | Z-45 XC |
| Z-60/34 | Z-60/34 |
| Z-62/40 | Z-62/40 |
| Z-80/60 | Z-80/60 |
| Z33/18 | Z33/18 |
| ZX-135/70 | ZX-135/70 |
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.
