Multiquip 8971691880 Cylinder Block Assembly DCA25USI 4LE2

The Multiquip 8971691880 is a genuine OEM Cylinder Block Assembly DCA25USI 4LE2 designed for the DCA25USI ultra-silent diesel generator. As a direct OEM component sourced through Multiquip's authorized parts network, this assembly delivers the exact material specifications and dimensional tolerances required by the Isuzu 4LE2 engine platform. Verified fitment for the DCA25USI ensures this is a straight swap with no guesswork on compatibility.

Key Features

• OEM-Grade Casting Integrity — Manufactured to the same material and dimensional specifications as the original 4LE2 engine block, ensuring correct bore geometry and deck surface alignment critical to maintaining compression and head gasket sealing.
• Direct Engine Platform Fit — Engineered specifically for the Isuzu 4LE2 engine installed in the DCA25USI, allowing internal components such as pistons, crankshaft bearings, and liners to seat and align as intended.
• DCA25USI Series Compatibility — Confirmed fitment for the Multiquip DCA25USI ultra-silent generator series, eliminating the risk of selecting an incorrect block variant.
• Structural Foundation for Engine Performance — The cylinder block is the primary structural housing of the engine; a correctly spec'd OEM block maintains proper coolant passage routing, oil gallery integrity, and load-bearing stability under continuous generator operation.
• Fuel System and Electrical Safety Alignment — Correct block geometry ensures fuel injector bores and auxiliary mounting points align precisely, supporting safe, leak-free operation of the diesel fuel system in a generator environment.

The cylinder block is the core structural component of an internal combustion engine — it houses the cylinders, coolant passages, oil galleries, and mounting surfaces for the crankshaft, pistons, and cylinder head. In a diesel generator like the DCA25USI, the condition of the block directly affects compression efficiency, oil pressure, and thermal management, all of which determine the unit's ability to sustain rated power output. A cracked, warped, or otherwise compromised block will lead to coolant contamination of engine oil, loss of compression, or catastrophic internal failure, making accurate OEM replacement essential when the block reaches end of service life.

For fitment questions or to confirm this part is correct for your DCA25USI 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.