Multiquip 8971147133 Cylinder Head Assembly DCA25USI 4LE2

The Multiquip 8971147133 is a genuine OEM Cylinder Head Assembly DCA25USI 4LE2 designed for the DCA25USI ultra-silent diesel generator. As a direct Multiquip OEM component, this assembly is manufactured to the exact specifications of the original part, ensuring a correct fit with the Isuzu 4LE2 engine at the heart of the DCA25USI. When the cylinder head wears, cracks, or fails, swapping it for the correct OEM assembly is the surest way to restore full compression, proper combustion, and engine integrity on your generator.

Key Features

• Genuine OEM Combustion Integrity — Machined to the exact tolerances of the Isuzu 4LE2 engine, ensuring proper sealing surfaces, port geometry, and compression ratios are maintained from the first start.
• Direct Fit for DCA25USI — Engineered specifically for the DCA25USI ultra-silent diesel generator; all bolt patterns, port alignments, and valve seat positions match the original installation without rework.
• Restores Full Engine Compression — A correctly installed cylinder head assembly eliminates compression loss caused by warping, cracking, or head gasket failure, returning the generator to rated output capacity.
• Fuel Efficiency and Clean Combustion — Proper combustion chamber geometry ensures the 4LE2 engine burns fuel efficiently, preventing rough running, excess smoke, and elevated fuel consumption associated with a compromised head.
• Critical Safety Component — A failed or cracked cylinder head can lead to coolant intrusion, oil contamination, and overheating; replacing with the OEM assembly 8971147133 protects the engine from cascading internal damage.

The cylinder head assembly sits at the top of the engine block and forms the upper boundary of each combustion chamber. It houses the intake and exhaust valves, valve seats, and valve guides, and works in conjunction with the head gasket to seal combustion pressure within the cylinder. On the Isuzu 4LE2 engine used in the DCA25USI, the cylinder head also carries the fuel injector ports and plays a direct role in how efficiently the engine generates power to drive the alternator. When a cylinder head warps from overheating or develops a crack, compression drops, coolant or oil can enter the combustion chamber, and the generator will lose output, run roughly, or fail to start entirely — making timely replacement with the correct OEM part essential to keeping the unit operational.

For fitment questions or to confirm this part is correct for your DCA25USI serial range, contact the DHS Equipment team directly.

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.