The Honda 90413-ZK6-880 Thrust Washer (16.1MM) is a genuine OEM component designed for GX240, GX270, GX340, and GX390 horizontal shaft engines. As a direct Honda OEM part, it is manufactured to the exact dimensional and material tolerances specified for these engines, ensuring a correct fit without modification. Sourced directly through Honda's parts network, this washer carries part number 90413-ZK6-880 and is the correct replacement when servicing the crankshaft assembly on these engines. Verify your engine's serial number against the fitment table before ordering, as Honda supersedes parts at serial number breaks.
Key Features
- Exact Dimensional Tolerancing — at 16.1MM, this thrust washer holds the precise axial clearance the GX-series crankshaft requires, preventing end-play that leads to premature wear
- Genuine OEM Part — sourced directly from Honda, ensuring the dimensional accuracy that aftermarket alternatives may not replicate for a rotating assembly component like this
- Broad GX-Series Coverage — listed for GX240, GX270, GX340, and GX390 horizontal shaft engines, making it a common service part across Honda's mid- to large-displacement commercial engine range
- Serial Number Verification Recommended — Honda updates fitment at production serial breaks; confirm your engine's serial number against the compatibility table to ensure part number 90413-ZK6-880 is correct for your unit
A thrust washer controls axial movement — the back-and-forth play — of a rotating shaft within its housing. In Honda's GX-series horizontal shaft engines, this washer sits against the crankshaft to maintain the correct amount of end-play and absorb the axial loads generated during operation. Without it, or when it wears thin, excessive crankshaft end-play develops, which causes accelerated wear on adjacent bearing surfaces and can lead to oil leaks and rough running. Replacing a worn thrust washer restores the crankshaft's correct lateral position and protects the surrounding components from the damage that unchecked end-play causes.
Part Details
| Part Number | 90413-ZK6-880 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Thrust Washer (16.1MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX240, GX270, GX340, 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.
