Multiquip 8970461811 Flywheel Assembly DCA-40SSAI 4BD1

The Multiquip 8970461811 is a genuine OEM Flywheel Assembly DCA-40SSAI 4BD1 designed for the DCA40SSAI ultra-silent diesel generator. As a direct OEM replacement, this assembly is sourced to the original specification, ensuring it integrates correctly with the 4BD1 engine powertrain in your DCA40SSAI unit. Sourcing a genuine OEM component for a critical rotating assembly like this means you can trust the balance tolerancing, bolt pattern, and ring gear engagement are exactly as the machine requires. DHS Equipment stocks this part to help you get your DCA40SSAI back to full power output without guesswork.

Key Features

• OEM-Matched Mass and Balance — Manufactured to the original rotational balance specification for the 4BD1 engine, ensuring smooth power transfer and correct ignition timing alignment.
• Direct Bolt-On Replacement — Matches the OEM bolt pattern and crankshaft interface of the DCA40SSAI, so it seats and torques down the same way the original did.
• Confirmed Fitment for DCA40SSAI — Engineered specifically for the DCA40SSAI ultra-silent diesel generator series; verify your model before ordering.
• Protects Starter and Ring Gear Life — A correctly balanced flywheel reduces stress on the starter motor and ring gear teeth, preventing premature wear on surrounding drivetrain components.
• Critical for Stable Generator Output — The flywheel sustains engine momentum between power strokes; a cracked or out-of-balance unit causes rough running, voltage irregularities, and potential engine damage.

The flywheel is a heavy rotating disc bolted directly to the engine crankshaft. Its mass stores rotational energy between combustion cycles, smoothing out the power pulses of the diesel engine and maintaining consistent crankshaft speed — which is essential for stable electrical output in a generator application. On the DCA40SSAI, the flywheel also carries the ring gear that engages the starter motor during cranking. When a flywheel cracks, loses balance, or suffers ring gear damage, the result is rough engine operation, difficult starting, and — in severe cases — dangerous vibration that can damage the alternator and engine bearings.

For questions about fitment or to confirm this part is correct for your serial number, 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.