Description
Overview:
This crankshaft oil seal is a Genuine Honda part for small petrol engines and is designed to keep engine oil in and dirt out around the rotating crankshaft. It is made from an oil‐resistant elastomer with a steel reinforcement ring and an internal garter spring that maintains lip pressure against the shaft. This construction provides a reliable, long‐lasting seal under engine heat and vibration. It is engineered for Honda GX240 and GX270 engines and carries the Honda Manufacturer Part Number 91201-890-003. A correct, tight seal helps maintain crankcase integrity, reducing oil loss and protecting bearings and internal components. Suitable for engines used across construction and garden machinery, it replaces the original seal like‐for‐like for a precise fit without modification.
Key Features:
- Genuine Honda part for assured compatibility and fit on GX240 and GX270 engines
- Oil‐resistant elastomer lip with steel backing for durability under heat and load
- Internal garter spring maintains constant sealing pressure on the crankshaft
- Helps prevent oil leaks, reducing mess, top‐ups, and the risk of engine damage
- Supports correct crankcase sealing for smooth running and consistent performance
- Made to OEM specification (MPN 91201-890-003) for reliable, repeatable results
- Like‐for‐like replacement to simplify fitting during routine maintenance or rebuilds
- Suitable for engines in demanding environments such as compaction, pumping, and power equipment
- Resistant to common engine oils and fuels encountered in typical service conditions
- Robust design intended for long service life when installed on a clean shaft
Typical Applications:
Used on the crankshaft of Honda GX240 and GX270 engines powering generators, water pumps, pressure washers, plate compactors, tillers, and cement mixers. Ideal when refurbishing an engine, addressing oil seepage at the crank end, or as preventative maintenance during a crankcase or clutch service.
Also known as:
Front main seal, rear main seal, PTO shaft seal, output shaft oil seal, flywheel side seal, crank end seal, crank lip seal, mainshaft seal.
Fits Models:
G400K1, GX240, GX240K1, GX240U1, GX270, GX270U
Alternate Part Numbers:
91201-890-003, 91201890003
Product Specifications
| L&S Part No. | 91201 890 003 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 91201890003 |
| Unit of Sale | 1 |
| Applications | G400K1, GX240, GX240K1, GX240U1, GX270, GX270U |
| Fits Brands | Honda |
| Fits Models | GX270 (GCAB) | GX270 (GDAD) | GX240K1 (GC04) | GX270U (GCALK) | GX240U1 (GCAKK) | GX240K1 (GDAC) | G400K1 |
