The Multiquip 8971151770 Crankshaft Assembly DCA25USI 4LE2 is a genuine OEM crankshaft assembly designed for the DCA25USI ultra-silent diesel generator. As an authorized Multiquip OEM part, 8971151770 is manufactured to the exact tolerances required by the 4LE2 engine, ensuring a correct, direct installation with no guesswork on fitment. If you are servicing or rebuilding the bottom end of a DCA25USI generator, this is the factory-correct component for the job.
Key Features
- OEM-Grade Dimensional Tolerancing — Manufactured to the exact journal diameters and stroke specifications of the Isuzu 4LE2 engine, ensuring proper bearing clearance and oil film integrity.
- Direct Drop-In Installation — Engineered to match the original bolt pattern, counterweight configuration, and end-journal dimensions of the DCA25USI engine block for a straightforward rebuild.
- Confirmed Fitment for DCA25USI — Specifically matched to the DCA25USI ultra-silent diesel generator platform; verify your model code before ordering.
- Restores Full Power Output — A worn or damaged crankshaft causes misfiring, vibration, and loss of generator output; replacing with a correctly spec'd OEM crankshaft restores smooth, rated-power operation.
- Critical Engine Integrity — As a primary rotating component in the fuel combustion cycle, correct crankshaft geometry directly affects compression consistency and long-term engine service life.
The crankshaft is the central rotating shaft of a reciprocating engine, converting the up-and-down motion of the pistons into the rotational force that drives the generator's alternator. In the 4LE2 diesel engine found in the DCA25USI, the crankshaft must maintain precise journal tolerances to sustain proper oil pressure and bearing life across thousands of operating hours. When a crankshaft becomes worn, scored, or cracked, the result is excessive vibration, loss of compression, low oil pressure, and ultimately catastrophic engine failure — making timely replacement with a correct OEM assembly essential to restoring dependable generator output.
For fitment questions or help confirming this part is right for your DCA25USI generator, contact the DHS Equipment parts team directly.
Part Details
| Part Number | 8971151770 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Crankshaft Assembly DCA25USI 4LE2 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA25USI |
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.
