The Genie 1280590GT is a genuine OEM Deutz BF4L2011 Alternator Pulley built for Genie S and SX telescopic boom lifts and Z and ZX articulating boom lifts. As a direct OEM replacement, this pulley is manufactured to the same tolerances and specifications as the original, ensuring correct belt alignment and drive engagement on the Deutz BF4L2011 engine. Confirmed fitment includes the S-100HD, S-120HD, SX-150, SX-180, SX-135 XC, Z-135/70, ZX-135/70, and Z-80/60.
Key Features
- Genuine OEM Construction — Manufactured to Genie's original dimensional and material specifications, ensuring correct pulley diameter, bore fit, and belt groove profile for the Deutz BF4L2011 engine.
- Direct OEM Replacement — Engineered to install in the same position as the original, matching the alternator shaft interface and drive belt routing without modification.
- Broad Boom Lift Fitment — Compatible with Genie S and SX telescopic booms and Z and ZX articulating booms, including the S-100HD, SX-180, SX-135 XC, Z-135/70, and ZX-135/70.
- Alternator Drive Integrity — A correctly functioning pulley maintains consistent belt tension and rotational transfer to the alternator, supporting stable electrical output while the engine is running. A worn or damaged pulley can cause belt slip, premature belt wear, or loss of charge to the machine's electrical system.
- Operational Safety — On large boom lifts operating at significant heights, a failed alternator drive can interrupt power to critical controls. Replacing a worn pulley with the correct OEM part helps maintain the electrical system's dependability in demanding conditions.
The alternator pulley is a belt-driven component mounted on the alternator shaft, connecting the engine's drive belt to the alternator rotor. As the engine runs, the pulley transfers rotational energy to spin the alternator and generate the electrical current that charges the machine's battery and powers its electrical systems. When the pulley is cracked, worn in the belt groove, or loose on the shaft, belt slip and vibration follow — reducing charging output and accelerating belt wear. Replacing a failed pulley with part number 1280590GT restores correct drive engagement and protects the alternator and belt from further damage.
Part Details
| Part Number | 1280590GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Deutz BF4L2011 Alternator Pulley |
Compatibility & Fitment
| Name | Models |
|---|---|
| S-100HD | S-100HD |
| S-120HD | S-120HD |
| SX-135 XC | SX-135 XC |
| SX-150 | SX-150 |
| SX-180 | SX-180 |
| Z-80/60 | Z-80/60 |
| Z-135/70 | Z-135/70 |
| 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.
