The Multiquip 5123101631 Crankshaft Assembly is a genuine OEM component designed for DCA40SSAI and DCA40SSI ultra-silent diesel generators. As a direct OEM replacement, this assembly is sourced and validated by Multiquip to meet the exact specifications of the original part. Confirmed fitment covers the DCA40SSAI and DCA40SSI models, giving you confidence that this is the correct part before it ships. Sourcing genuine OEM on a critical rotating component like the crankshaft is the straightforward way to protect your generator investment.
Key Features
- Genuine OEM Crankshaft Integrity — Manufactured to the same dimensional tolerances and material grade as the original, ensuring correct journal sizing, counterweight balance, and surface finish for sustained engine operation.
- Direct Drop-In Replacement — Engineered to install into the DCA40SSAI and DCA40SSI engine block without machining or modification, aligning with existing bearing seats and timing marks.
- Confirmed Fitment for DCA Series Generators — Verified compatibility with the DCA40SSAI and DCA40SSI ultra-silent diesel generator models.
- Restores Full Power Output — A worn or damaged crankshaft causes loss of compression, excessive vibration, and uneven power delivery; replacing with this assembly restores smooth, consistent engine output.
- Critical Engine Safety Component — A failed crankshaft can cause catastrophic internal engine damage; using a genuine OEM assembly ensures the structural integrity required for safe, continuous generator operation.
The crankshaft is the central rotating shaft inside the engine that converts the up-and-down motion of the pistons into the rotational force that ultimately drives the generator's alternator. It must maintain precise balance and surface hardness to handle continuous combustion loads without flexing or wearing excessively at the bearing journals. When a crankshaft becomes worn, cracked, or damaged, the engine will develop rough running, loss of power, increased oil consumption, and in severe cases, complete mechanical failure — making timely replacement with a correct OEM assembly essential to keeping the generator operational.
Part Details
| Part Number | 5123101631 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Crankshaft Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA40SSAI |
| Diesel Powered Generators | DCA40SSI |
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.
