The Honda 21592-VA3-801 Transmission Case O-Ring is a genuine OEM replacement designed for HR194, HR195, HR214, HR215, and HR216 lawn mowers. As a direct Honda OEM component, this o-ring is produced to the same specifications as the original part, ensuring a proper seal within the transmission case. Confirm your mower's serial number against the fitment table before ordering, as Honda updates parts at serial breaks and the correct version matters for a leak-free installation.
Key Features
- Genuine Honda OEM Seal — manufactured to Honda's original dimensions and durometer, so the o-ring seats correctly in the transmission case groove without trimming or shimming.
- Transmission Sealing — maintains the fluid barrier inside the transmission case; a cracked or flattened o-ring allows lubricant to escape, leading to transmission wear and potential drive failure.
- Broad HR-Series Fitment — covers Honda HR194, HR195, HR214, HR215, and HR216 lawn mowers, including multiple production runs across each model.
- Check Your Serial Number — Honda supersedes o-rings at production breaks; verify your mower's serial number against the compatibility table to confirm this is the right version for your unit.
The transmission case o-ring forms a fluid-tight seal at the joint of the transmission housing on Honda's HR-series self-propelled lawn mowers. It keeps the transmission's lubricant contained so the drive gears and internal components stay properly lubricated through the mower's working life. When this o-ring ages, hardens, or takes a set, it loses its ability to seal — lubricant leaks out, the transmission runs dry, and the self-propel drive begins to slip or fail entirely.
Part Details
| Part Number | 21592-VA3-801 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Transmission Case O-Ring |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Mower | HR195, HR215 | 1000001-6017816 |
| Lawn Mower | HR194, HR214, HR216 | 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.
