Multiquip 8943398951 Crankshaft DCA45SSIU2 4BG1

The Multiquip 8943398951 is a genuine OEM Crankshaft DCA45SSIU2 4BG1 designed for the DCA45SSIU2 ultra-silent diesel generator series. As a direct OEM replacement sourced through Multiquip's authorized parts network, this crankshaft is manufactured to the exact tolerances required by the 4BG1 engine platform. DHS Equipment supplies this part to keep your DCA45SSIU2 generator running at full capacity with the confidence of genuine OEM quality. Verify your model code and engine designation before ordering to ensure correct fitment.

Key Features

• Genuine OEM Crankshaft Tolerancing — Manufactured to the precise dimensional specifications of the 4BG1 engine, ensuring correct bearing clearances, stroke geometry, and journal surface finish critical to this engine family.
• Direct Engine Drop-In — Engineered specifically for the 4BG1 engine block used in the DCA45SSIU2, matching all journal diameters, counterweight positioning, and flange interfaces for a straightforward installation.
• Confirmed Fitment for DCA45SSIU2 — Validated for use in the Multiquip DCA45SSIU2 ultra-silent diesel generator, eliminating guesswork when sourcing internal engine components for this unit.
• Restores Full Power Output — A correctly functioning crankshaft converts the 4BG1's piston energy into smooth rotational force; a worn or damaged crank causes vibration, oil leaks at the main bearings, and loss of generator output.
• Critical Engine Integrity Component — The crankshaft is a load-bearing core of the engine assembly; using an OEM-specification part maintains proper dynamic balance and protects connected components such as the connecting rods and main bearing shells.

The crankshaft is the central rotating component of the diesel engine, translating the linear motion of the pistons into the rotational force that ultimately drives the generator's alternator. In the 4BG1 engine fitted to the DCA45SSIU2, the crankshaft must maintain precise journal geometry and surface hardness to support the main and rod bearings under continuous load. When a crankshaft becomes worn, scored, or damaged, operators typically experience excessive engine vibration, abnormal oil consumption, reduced power output, and in severe cases, catastrophic bearing failure that can sideline the generator entirely.

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.