The Honda 14781-001-010 Valve Cotter is a genuine OEM replacement designed for a broad range of Honda equipment, including GX360 horizontal shaft engines, BF75 and BF100 portable outboard motors, EL5000, ES6500, and EX5500 generators, EV4010, EV6010, and EVD4010 RV generators, and the H4514 lawn tractor. As a direct Honda OEM component, this valve cotter is manufactured to the exact specification required to retain the valve spring retainer securely on the valve stem. Confirm your equipment's serial number against the fitment table before ordering — Honda updates part numbers at production breaks, and verifying the match ensures you receive the correct cotter for your unit.
Key Features
- Genuine OEM Valve Retention — sourced directly from Honda, this cotter is manufactured to the precise geometry needed to lock the valve spring retainer in place on the valve stem, keeping valve train geometry consistent under operating conditions.
- Wide Honda Fitment — covers GX360 horizontal shaft engines, BF75 and BF100 outboard motors, EL5000, ES6500, and EX5500 generators, EV4010, EV6010, and EVD4010 RV generators, and the H4514 lawn tractor, including the broad range of equipment these power units serve.
- Serial Number Verification Recommended — Honda introduces supersession at serial number breaks across many of these models; check your serial number against the fitment table to confirm part number 14781-001-010 is the correct cotter for your specific unit.
- Valve Train Integrity — a correctly seated valve cotter holds the retainer at the right height on the stem; a failed or improperly fitted cotter can allow the retainer to slip, causing valve drop and loss of compression or engine damage.
A valve cotter — sometimes called a valve keeper — is a small split clip that locks the valve spring retainer onto the groove near the top of the valve stem. When the retainer is pressed down against spring pressure, the two halves of the cotter seat into the stem groove and hold the retainer firmly in place once released. This locks the entire valve spring assembly together, maintaining the correct lift and seating of the valve with every combustion cycle. If a cotter cracks, deforms, or is dislodged, the retainer loses its anchor, the valve spring can unseat, and the valve itself may drop into the combustion chamber — an event that causes immediate and severe internal damage. Replacing a worn or suspect cotter at service time is straightforward insurance against a far more costly repair.
Part Details
| Part Number | 14781-001-010 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Valve Cotter |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EL5000, ES6500, EX5500 | 1270385-1276654 |
| Horizontal Shaft Engine | GX360 | 1270385-1279797 |
| Lawn Tractor | H4514 | 1270385-1279036 |
| Outboard Motor | BF75 | 1210821-1212519 |
| Portable Outboard Motor | BF8, BF100 | 1210821-1212519 |
| RV Generator | EV4010, EV6010, EVD4010 | 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.
