The Honda 14751-Z7E-000 Valve Spring is a genuine OEM replacement designed for GX270 and GX390 horizontal shaft engines, as well as EB3800, EB4000, EB5000, EB6500, EM3800, EM4000, EM5000, and EM6500 generators. As an authentic Honda part, it is manufactured to the exact tension and dimensional specifications required to keep the valvetrain operating correctly across every engine in the fitment range. Always verify your engine's serial number against the fitment table before ordering, as Honda supersedes parts at specific serial breaks — part number 14751-Z7E-000 must be confirmed for your unit.
Key Features
- Correct Valve Tension — as a genuine OEM spring, this part delivers the precise load rate needed to close intake and exhaust valves fully at operating speeds, preventing the blowby and power loss that a fatigued spring causes
- Direct OEM Replacement — dimensionally identical to the original, this Valve Spring installs without modification into any engine in the fitment range
- Broad Fitment — covers GX270 and GX390 horizontal shaft engines, including EB3800, EB4000, EB5000, EB6500, EM3800, EM4000, EM5000, and EM6500 generators powered by those engines
- Serial Number Verification Recommended — Honda updates part specifications at production serial breaks; confirm your serial number against the fitment table to ensure this is the correct spring for your engine
The valve spring holds each intake and exhaust valve firmly closed against its seat whenever the camshaft lobe is not actively lifting it open. This closing force is what maintains a proper combustion seal and controls the precise timing of valve events as engine speed changes. When a valve spring weakens or breaks, valves may float at higher RPMs, fail to seat completely, or stay partially open — leading to compression loss, rough running, excessive fuel consumption, and accelerated wear on valve seats and guides.
Part Details
| Part Number | 14751-Z7E-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Valve Spring |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB3800, EB4000, EB5000, EB6500, EM3800, EM4000, EM5000, EM6500 | All |
| Horizontal Shaft Engine | GX270, GX390 | All |
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.
