Multiquip 8971451980 Camshaft Injection Pump DCA25USI 4LE2

The Multiquip 8971451980 is a genuine OEM Camshaft Injection Pump DCA25USI 4LE2 designed for the DCA25USI ultra-silent diesel generator. As a direct Multiquip OEM part, it is manufactured to the exact specification of the original component, ensuring a correct, trouble-free installation. This part is confirmed for the DCA25USI platform, powered by the Isuzu 4LE2 diesel engine. When it comes to a precision fuel system component like this, sourcing the genuine OEM part is the straightforward choice for preserving injection timing accuracy and long-term engine performance.

Key Features

• Genuine OEM Injection System Accuracy — Manufactured to original Isuzu 4LE2 fuel system specifications, ensuring correct injection timing and fuel delivery geometry from the first start.
• Direct Installation Fit — Engineered as a drop-in replacement for the DCA25USI, matching original mounting interfaces, drive engagement, and shaft dimensions without alteration.
• Confirmed Fitment for DCA25USI — Verified for the Multiquip DCA25USI ultra-silent diesel generator equipped with the Isuzu 4LE2 engine.
• Protects Fuel Delivery Consistency — A correctly functioning injection pump camshaft maintains precise fuel metering under load; a worn unit causes rough running, power loss, and excessive smoke.
• Critical for Generator Output Stability — Accurate fuel injection timing is essential for the DCA25USI to maintain stable voltage and frequency output under varying electrical loads.

The injection pump camshaft is a core internal component of the diesel fuel injection pump, responsible for actuating the pump plungers at precisely timed intervals to deliver metered fuel charges to each cylinder. On the Isuzu 4LE2 engine used in the DCA25USI, the camshaft's lobe profile directly governs injection timing, fuel quantity per cycle, and the consistency of combustion across all cylinders. When the injection pump camshaft wears or fails, symptoms include hard starting, uneven idle, loss of rated power output, and elevated exhaust smoke — all of which compromise the generator's ability to deliver stable power on the jobsite.

For help confirming this part fits your specific unit, contact the DHS Equipment team with your model and serial number 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.