The Honda 91201-Z2A-003 Oil Seal (25.4X74X6) is a genuine OEM component designed for GS160 and GS190 horizontal shaft engines, GSV190 vertical shaft engines, and HRC216 lawn mowers. As a direct Honda OEM part, this seal is manufactured to the exact dimensions and tolerances specified for these applications — the 25.4X74X6 sizing in the part name identifies this specific variant, so buyers servicing multiple units should confirm the measurement matches their machine before ordering. Honda supersedes seals at serial breaks, so cross-referencing your machine's serial number against the fitment table is always the right call before purchase. This seal ships under part number 91201-Z2A-003 and is sold by DHS Equipment as an authorized Honda parts dealer.
Key Features
- Genuine OEM Sealing Integrity — manufactured to Honda's exact dimensional specification (25.4X74X6), ensuring the lip profile and sealing surface match the original, not an approximation
- Variant-Specific Sizing — the 25.4X74X6 designation identifies this as a specific seal variant; confirm this measurement against your machine's parts diagram before ordering, especially when multiple seal sizes are listed for a model
- Broad Cross-Model Coverage — listed for GS160 and GS190 horizontal shaft engines, GSV190 vertical shaft engines, and HRC216 lawn mowers, including multiple serial ranges within those models
- Serial Number Verification Recommended — Honda updates seals at production breaks, so matching your serial number to the fitment table ensures you receive the correct part for your specific unit
- Leak Prevention — a degraded or improperly sized oil seal allows engine oil to escape past the shaft, leading to low oil levels, contamination of adjacent components, and accelerated wear
An oil seal is a precision-fit lip seal that prevents engine oil from escaping along a rotating shaft — typically the crankshaft output end or camshaft journal. It consists of a metal outer casing pressed into the housing bore and a flexible sealing lip that rides against the shaft surface, forming a barrier that keeps oil inside the engine while blocking dirt and moisture from entering. When this seal wears, hardens, or is damaged during service, oil migrates past the lip: the result is external leakage, reduced oil volume, and the risk of oil reaching ignition components or the surrounding equipment. Replacing a failed seal with the correct OEM part restores the original sealing geometry and protects the engine from oil loss during operation.
Part Details
| Part Number | 91201-Z2A-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Oil Seal (25.4X74X6) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GS160, GS190 | All |
| Lawn Mower | HRC216 | 1016549-9999999 |
| Vertical Shaft Engine | GSV190 | 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.
