The Honda 28451-ZH8-801 Starter Pulley (Straight Pawls) is a genuine OEM recoil starter component designed for GX160 horizontal shaft engines, EG1400, EG2200, EG2500, EP2500 generators, and a wide range of Honda water pumps including WB20, WB30, WD20, WD30, WH15, WH20, WMP20, WP20, WP30, WT20, and WT30 models. As a direct OEM replacement, this pulley is manufactured to the same specification as the part that left the factory, ensuring the recoil starter engages and winds correctly every time. The straight-pawl configuration is the key variant identifier — verify this matches your existing pulley before ordering, as Honda lists both straight-pawl and 90° pawl versions across its recoil starter lineup. Always confirm your unit's serial number against the fitment table, as Honda supersedes parts at serial breaks.
Key Features
- Correct Pawl Geometry — straight-pawl design matches the specific recoil starter engagement pattern this listing covers; confirm against your existing pulley before purchase
- Genuine OEM Construction — manufactured by Honda to the same tolerances as the original, so the rope winds evenly and the pawls engage the starter cup without slipping or binding
- Broad Fitment — listed for GX160 engines, EG-series generators, and multiple Honda water pump models including WB20, WB30, WH15, WH20, WT20, and WT30, among others
- Serial Number Verification Recommended — Honda updates parts at production serial breaks; check your machine's serial number against the compatibility table to confirm this pulley is correct for your unit
- Smooth, Consistent Pull Starting — a worn or damaged starter pulley causes erratic rope retraction and difficult starts; replacing it restores the clean, consistent pull a properly functioning recoil starter delivers
The starter pulley sits at the heart of the recoil starter assembly, serving as the spool that stores the starter rope and transfers the operator's pull into rotational force to crank the engine. As the rope is pulled, the pulley spins and its pawls extend outward to engage the engine's flywheel, turning it over until combustion begins; when released, the spring retracts the rope back onto the pulley ready for the next start. Over time, the rope groove can wear or the pawls can chip and fail to extend cleanly, resulting in a rope that won't retract fully or a starter that spins without catching — replacing the pulley restores reliable, repeatable starting performance.
Part Details
| Part Number | 28451-ZH8-801 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Starter Pulley (Straight Pawls) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EP2500 | 1000001-3103958 |
| Generator | EG1400, EG2200, EG2500 | 8805658-9999999 |
| Horizontal Shaft Engine | GX160 | All |
| Water Pump | WH15, WH20 | 1422407-1916816, 8805658-9999999 |
| Water Pump | WB20, WB30 | 1422407-9999999 |
| Water Pump | WD20, WD30, WP20, WP30, WT20, WT30 | 8805658-9999999 |
| Water Pump | WMP20 | 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.
