The Multiquip 5157540010 Tappet Assembly is a genuine OEM component designed for the DCA series ultra-silent diesel generator lineup, including DCA25SSI, DCA25SSIU, DCA25SSAI, DCA40SSI, DCA40SSAI, DCA45SSIU2, DCA60SSI2, and DCA60SSAI models. Sourced directly from Multiquip, this part meets the original engineering specification for the Isuzu diesel engines powering these units. Verified fitment across the DCA ultra-silent series means you can order with confidence and get your generator back in service without guesswork.
Key Features
- Genuine OEM Construction — Manufactured to the original Isuzu engine tolerances required by the DCA series, ensuring the tappet seats and operates exactly as the engine was designed.
- Drop-In Engine Compatibility — Engineered to install directly into the valvetrain without reworking the camshaft or valve seat, preserving the original valve lash geometry.
- Broad DCA Series Fitment — Confirmed for DCA25SSI, DCA25SSIU, DCA25SSAI, DCA40SSI, DCA40SSAI, DCA45SSIU2, DCA60SSI2, and DCA60SSAI ultra-silent diesel generators.
- Valvetrain Timing Integrity — A correctly functioning tappet maintains consistent valve lift and timing; a worn or failed tappet causes erratic engine behavior, increased fuel consumption, and potential valve damage.
- Critical Fuel System Safety — Proper tappet operation directly affects combustion timing and exhaust emissions compliance on diesel-powered generator sets — using the correct OEM part supports continued safe, legal operation.
The tappet assembly, also known as a valve lifter, sits between the camshaft and the valve stem in the engine's valvetrain. As the camshaft rotates, the tappet transfers the cam lobe's motion into precise valve opening and closing cycles that control airflow and fuel combustion. When a tappet wears down or fails, valve timing is disrupted, which can lead to rough running, power loss, excessive valve noise, and in severe cases, internal engine damage. Replacing a worn tappet assembly promptly with a genuine OEM part restores correct valvetrain function and protects the long-term health of the engine.
Part Details
| Part Number | 5157540010 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Tappet Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA25SSIU |
| Diesel Powered Generators | DCA25SSI |
| Diesel Powered Generators | DCA25SSI2 |
| Diesel Powered Generators | DCA40SSAI |
| Diesel Powered Generators | DCA45SSIU2 |
| Diesel Powered Generators | DCA40SSI |
| Diesel Powered Generators | DCA25SSAI |
| Diesel Powered Generators | DCA25SSIU-GEER |
| Diesel Powered Generators | DCA45SSIU2-FEMA |
| Diesel Powered Generators | DCA45SSIU2-GEER |
| Diesel Powered Generators | DCA60SSAI |
| Diesel Powered Generators | DCA60SSI2 |
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.
