Multiquip 1642764110 Alternator Pulley

The Multiquip 1642764110 Alternator Pulley is a genuine OEM Alternator Pulley designed for DAW-500S welders, DCA15SPX3, and DCA10SPX3 diesel-powered generators. As a direct OEM replacement, this pulley is manufactured to the exact dimensions and material specifications required by Multiquip equipment, ensuring correct belt engagement and consistent power transfer to the alternator. Sourced directly through authorized Multiquip supply channels, the part is a straightforward, confidence-inspiring swap for worn or damaged units on compatible machines.

Key Features

• Genuine OEM Pulley Geometry — Machined to the exact groove profile and bore diameter required for correct belt tracking and tension on Multiquip alternator systems.
• Direct Bolt-On Replacement — Matches the original mounting interface on the alternator shaft, allowing straightforward installation without modification to the belt drive assembly.
• Confirmed Fitment — Compatible with DAW-500S welders and DCA15SPX3 and DCA10SPX3 diesel-powered generators; always verify against your machine's parts manual before ordering.
• Consistent Belt Drive Performance — A correctly sized pulley maintains proper belt speed and tension, which directly supports stable alternator output voltage and prevents premature belt wear.
• Electrical System Integrity — A worn or out-of-spec pulley can cause belt slippage, erratic charging output, and voltage fluctuations that put sensitive connected equipment at risk — using the correct OEM pulley eliminates that variable.

The alternator pulley is the drive interface between the engine and the alternator, transferring rotational power via a belt to spin the alternator and generate electrical output. When the pulley is worn, cracked, or incorrectly sized, belt slippage occurs, which reduces charging efficiency and can cause unstable voltage output — a critical concern on welders and generators where consistent electrical performance is essential. Replacing a damaged pulley with the correct OEM component restores the designed belt-to-alternator speed ratio and protects the broader charging and power generation system from cascading wear.

Part Details

Compatibility & Fitment

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.