The Genie 28646GT is a genuine OEM Grease Zerk, 1/8 NPT designed for a wide range of Genie telescopic and articulating boom lifts, scissor lifts, telehandlers, and light towers. As a factory-sourced fitting, this component matches the original specification for thread size, body profile, and ball-check tension — ensuring grease flows correctly into the joint rather than bypassing it. Cross-reference part number 28646GT against your parts manual to confirm the correct fitting location on your machine. This grease fitting serves an extensive compatibility list that spans Genie 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.
Key Features
- OEM-Matched Ball-Check Tension — Genuine Genie sourcing means the internal ball and spring are calibrated to accept grease at the correct pressure, preventing under- or over-lubrication at the joint.
- 1/8 NPT Thread for Direct Installation — The straight 1/8 NPT thread seats flush into the original tapped port with no thread chasing or adapter required.
- Broad Fleet Coverage — A single part number covers Genie 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, simplifying parts inventory across a mixed fleet.
- Protects Pins, Bushings, and Pivot Points — A functioning grease fitting is the gateway to lubricating wear surfaces; a damaged or clogged fitting leaves those surfaces running dry and accelerates wear.
- Safety-Critical Lubrication Access — On aerial lifts, proper lubrication of pivot joints and structural pins is essential for boom articulation and platform stability; a failed fitting can result in missed lube intervals that compromise structural integrity over time.
A grease zerk — also called a grease nipple or fitting — is a small one-way valve threaded into a pivot point, pin bore, or bearing housing. When a grease gun is pressed against it, the internal ball check opens under pressure and allows fresh grease to enter the joint, then seats again to keep contaminants out. Over time, fittings can become stripped, corroded, or physically broken off during routine maintenance, making replacement essential. Without a functional fitting in place, the joint cannot be lubricated through normal service procedures, leading to accelerated wear on pins and bushings and potentially costly structural repairs.
Part Details
| Part Number | 28646GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Grease Zerk, 1/8 NPT |
Compatibility & Fitment
| Name | Model |
|---|---|
| AL4 | AL4 |
| AL5 | AL5 |
| AL4L | AL4L |
| AL5L | AL5L |
| S-60 | S-60 |
| S-65 | S-65 |
| S-60X | S-60X |
| S-60 XC | S-60 XC |
| S-60 HC | S-60 HC |
| S-60 TRAX | S-60 TRAX |
| S-65 TRAX | S-65 TRAX |
| S-100HD | S-100HD |
| S-120HD | S-120HD |
| SX-150 | SX-150 |
| S-65 XC | S-65 XC |
| S-60 HF | S-60 HF |
| S-65 HF | S-65 HF |
| SX-180 | SX-180 |
| SX-135 XC | SX-135 XC |
| S-40 | S-40 |
| S-45 | S-45 |
| S-80X | S-80X |
| S-80 | S-80 |
| S-85 | S-85 |
| S-80 XC | S-80 XC |
| S-85 XC | S-85 XC |
| S-80 HF | S-80 HF |
| S-85 HF | S-85 HF |
| SX-105 XC | SX-105 XC |
| SX-125 XC | SX-125 XC |
| S-40 XC | S-40 XC |
| S-45 XC | S-45 XC |
| S-40 TRAX | S-40 TRAX |
| S-45 TRAX | S-45 TRAX |
| S-40 HF | S-40 HF |
| S-45 HF | S-45 HF |
| S-60 J | S-60 J |
| S-80 J | S-80 J |
| S-60 FE Hybrid | S-60 FE Hybrid |
| S-60 DC | S-60 DC |
| S-60 FE | S-60 FE |
| S-85 XC FE | S-85 XC FE |
| S-85 XC E | S-85 XC E |
| S-3800 | S-3800 |
| S-3200 | S-3200 |
| S-120 | S-120 |
| S-125 | S-125 |
| S-100 | S-100 |
| S-105 | S-105 |
| GS-2669BE | GS-2669BE |
| GS-3369BE | GS-3369BE |
| GS-4069BE | GS-4069BE |
| GS-3384 | GS-3384 |
| GS-3390 | GS-3390 |
| GS-4390 | GS-4390 |
| GS-5390 | GS-5390 |
| GS-2669DC | GS-2669DC |
| GS-3369DC | GS-3369DC |
| GS-4069DC | GS-4069DC |
| GS-2669RT | GS-2669RT |
| GS-3369RT | GS-3369RT |
| GS-4069RT | GS-4069RT |
| GS-2668 RT | GS-2668 RT |
| GS-3268 RT | GS-3268 RT |
| GTH-1048 | GTH-1048 |
| GTH-1056 | GTH-1056 |
| GTH-644 | GTH-644 |
| GTH-844 | GTH-844 |
| GTH-842 | GTH-842 |
| GTH-636 | GTH-636 |
| TZ-34/20 | TZ-34/20 |
| TZ-50 | TZ-50 |
| TMZ-34/19 | TMZ-34/19 |
| TMZ-50/30 | TMZ-50/30 |
| TMZ-17/10 | TMZ-17/10 |
| Z-60/34 | Z-60/34 |
| Z-40/23N | Z-40/23N |
| Z-40/23N RJ | Z-40/23N RJ |
| Z33/18 | Z33/18 |
| ZX-135/70 | ZX-135/70 |
| Z-62/40 | Z-62/40 |
| Z-80/60 | Z-80/60 |
| Z-34/22 IC | Z-34/22 IC |
| Z-45 XC | Z-45 XC |
| Z-33 DC Power | Z-33 DC Power |
| Z-45/22 | Z-45/22 |
| Z-45/25J IC Power | Z-45/25J IC Power |
| Z-34 IC | Z-34 IC |
| Z-25/8 | Z-25/8 |
| Z-20/8 | Z-20/8 |
| Z-20/8N | Z-20/8N |
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.
