The Multiquip 8942525361 Spring Valve Outer DCA-45USJ 4JG1 is a genuine OEM outer valve spring designed for the DCA-45USJ ultra-silent diesel generator. Sourced directly from Multiquip, this part carries the correct specification for the Isuzu 4JG1 engine found in the DCA-45USJ series, ensuring a direct, accurate replacement every time. If you are servicing the valve train on a DCA-45USJ, this is the correct OEM component to use.
Key Features
- OEM-Spec Spring Tension — Manufactured to the exact coil rate and free-length specification required by the Isuzu 4JG1 engine, maintaining proper valve seating pressure throughout the valve train.
- Direct Engine Replacement — Engineered specifically for the 4JG1 engine assembly; seats and positions identically to the original spring without any rework or adaptation.
- Confirmed Fitment for DCA-45USJ — Verified for use on the Multiquip DCA-45USJ ultra-silent diesel generator series.
- Valve Train Integrity — A properly rated outer valve spring holds valves firmly closed under compression, preventing blow-by, power loss, and uneven engine performance that a fatigued or broken spring causes.
- Genuine Multiquip OEM Part — Supplied as an authentic Multiquip component under part number 8942525361, meeting the original design requirements for the DCA-45USJ platform.
The outer valve spring is a critical component in the engine's valve train. Working alongside the inner valve spring, it applies the closing force needed to seat the intake and exhaust valves precisely between each combustion cycle. When a valve spring loses tension, cracks, or breaks, the affected valve can float at higher engine speeds, leading to misfires, loss of compression, increased exhaust emissions, and potential valve-to-piston contact. Replacing a worn or failed spring with the correct OEM part restores proper valve timing and protects the engine from further internal damage.
For questions about fitment or to confirm this part is right for your DCA-45USJ generator, contact the DHS Equipment team directly.
Part Details
| Part Number | 8942525361 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Spring Valve Outer DCA-45USJ 4JG1 |
Compatibility & Fitment
| Name | Model |
|---|---|
| DCA-45USJ | DCA-45USJ |
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.
