Description
Overview:
This Washer Crankshaft is a Genuine Honda component for maintaining correct clamping on the crankshaft assembly in Honda V‐twin petrol engines. Manufactured from hardened steel with a corrosion‐resistant finish, it sits under the crankshaft bolt to spread the load evenly and hold pulleys, clutches or flywheels securely in place. Correct clamping helps minimise vibration, protects mating surfaces, and supports smooth running. Supplied to Honda OEM specification under part number 90401-ZJ1-000, it is a direct fit for popular engines such as the GX620 and GX670 used across generators, lawn and garden machinery, and compact plant. Suitable for routine servicing or repairs where the original washer is worn, damaged, or missing, ensuring reliable engine performance and longevity.
Key Features:
- Genuine Honda OEM part for assured fit and function (90401-ZJ1-000)
- Hardened steel construction with a durable, corrosion‐resistant finish
- Precisely machined to maintain correct bolt preload and load distribution
- Helps reduce vibration, fretting, and premature wear on crankshaft components
- Direct replacement for specified Honda V‐twin engines including GX620 and GX670
- Stable performance under typical engine temperatures and operating speeds
- Straightforward like‐for‐like installation with standard workshop tools
- Supports reliable running of generators, mowers, and other Honda‐powered equipment
Typical Applications:
Ideal when rebuilding or servicing Honda engines, replacing the crank bolt washer during flywheel, PTO pulley, or clutch work. Commonly used on generators, ride‐on mowers, pumps, and other machinery powered by GX/GXV series engines to maintain secure crankshaft assemblies and consistent performance.
Also known as:
Crank bolt retaining washer, flywheel retaining washer, PTO pulley washer, crankshaft clamping washer, engine thrust washer, special washer for crankshaft bolt.
Fits Models:
EB11000, EB11000K1, GX610U1, GX620, GX620U1, GX670, GX690, GXV610, GXV620, GXV670, GXV670U
Alternate Part Numbers:
90401-ZJ1-000, 90401ZJ1000
Product Specifications
| L&S Part No. | 90401 ZJ1 000 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 90401ZJ1000 |
| Unit of Sale | 1 |
| Machine Type | Generators, Mowers |
| Fits Brands | Honda |
| Key Features | - Genuine Honda OEM part, 90401-ZJ1-000 - Hardened steel with corrosion-resistant finish - Direct replacement for GX620 and GX670 engines - Reduces vibration and premature wear - Fits models: EB11000, GX620, GX670, GX690 |
| Fits Models | GX610U1 (GCAPK) | GX620U1 (GCARK) | GX670 (GCAM) | GX690 (GDACK) | GXV610 (GJAC) | GXV620 (GJAD) | GXV670 (GJAH) | GXV670U (GJAHK) |

