Multiquip 8971379100 Crankshaft Gear

The Multiquip 8971379100 is a genuine OEM Crankshaft Gear designed for DCA40SSAI and DCA45SSIU2 series ultra-silent diesel generators. As a direct OEM replacement sourced from Multiquip, this gear is manufactured to the exact tolerances required by the engine, ensuring correct mesh engagement and accurate timing drive performance. Verified fitment includes the DCA45SSIU2, DCA45SSIU2-GEER, and DCA45SSIU2-FEMA variants, making this the right choice for operators maintaining any of these generator configurations.

Key Features

• Genuine OEM Gear Geometry — Tooth profile and pitch are held to OEM specification, ensuring correct mesh with mating timing components and preventing slippage or premature wear.
• Drop-In Engine Compatibility — Engineered to mount directly onto the crankshaft of the Isuzu diesel engine used in DCA40SSAI and DCA45SSIU2 series generators with no alteration to surrounding components.
• Confirmed Generator Fitment — Verified for DCA40SSAI, DCA45SSIU2, DCA45SSIU2-GEER, and DCA45SSIU2-FEMA ultra-silent generator models.
• Timing Drive Integrity — A correctly seated crankshaft gear maintains precise valve and fuel injection timing, which is critical to stable power output and efficient generator operation.
• Hardened Gear Material — Constructed to OEM hardness standards to resist the constant rotational load and heat cycles generated inside a diesel engine running under continuous load.

The crankshaft gear is a core component of the engine's timing drive system, transferring rotational motion from the crankshaft to the camshaft and fuel injection pump at a precisely controlled ratio. This synchronization governs when intake and exhaust valves open and close relative to piston position — any deviation caused by a worn or damaged gear will disrupt combustion timing, leading to rough running, loss of power output, or hard starting. On generator sets like the DCA series, where consistent voltage and frequency output depend on stable engine speed, a failed crankshaft gear can compromise the entire power delivery system. Replacing a worn gear with a genuine OEM part restores the original timing relationship and protects downstream engine components.

For fitment questions or to confirm this part is correct for your specific DCA generator serial range, contact the DHS Equipment parts team before ordering.

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.