The Honda 28421-Z1B-D10 Starter Reel is a genuine OEM component designed for a wide range of Honda engines and equipment, including BF2 and BF20 portable outboard motors, EG650, EM650, EX650, and EX1000 generators, the G100 horizontal shaft engine, HR173 lawn mowers, the F210 tiller, the HP250 power carrier, and WB15 water pumps. As a direct Honda OEM replacement, this starter reel is manufactured to the same specification as the original, ensuring correct fitment without the guesswork of aftermarket alternatives. Because Honda supersedes parts at serial breaks, confirm your unit's serial number against the fitment table before ordering.
Key Features
- Genuine Honda OEM Construction — manufactured to the same specification as the original reel, delivering the rope-winding geometry and spring engagement that a recoil starter depends on
- Broad Cross-Equipment Fitment — a single part number covers BF2 and BF20 portable outboard motors, EG650, EM650, EX650, and EX1000 generators, the G100 engine, HR173 lawn mowers, the F210 tiller, the HP250 power carrier, and the WB15 water pump
- Serial Number Verification Recommended — Honda updates recoil starter components at production breaks, so cross-check your machine's serial number against the fitment table to confirm this reel is correct for your unit
- Restores Clean, Consistent Cranking — a worn or cracked reel causes the starter rope to slip, jam, or fail to rewind, leaving the engine unable to start; replacing it brings the recoil system back to full function
The starter reel — also called the rope pulley — is the coiled spool that sits inside the recoil starter housing. When the starter rope is pulled, the reel unwinds and transfers rotational force through the pawl mechanism to spin the engine or motor over for starting. A return spring wound around the reel hub retracts the rope automatically after each pull. Over time, the reel can crack, warp, or wear at the rope anchor point, causing sluggish retraction, a rope that will not rewind, or a complete failure to engage the engine. Replacing it with a correct-specification Honda part restores smooth, consistent cranking across all the equipment this reel serves.
Part Details
| Part Number | 28421-Z1B-D10 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Starter Reel |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EX1000 | 1000001-1186838 |
| Generator | EG650 | 1000001-2357294 |
| Generator | EM650, EX650 | 1280788-1281027 |
| Horizontal Shaft Engine | G100 | 1000001-2357294 |
| Lawn Mower | HR173 | 1000001-2613584 |
| Portable Outboard Motor | BF2, BF20 | 1213768-9999999 |
| Power Carrier | HP250 | 1000001-2541991 |
| Tiller | F210 | 1000001-2494332 |
| Water Pump | WB15 | 1000001-2357294 |
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.