- Order number: 047-900503
Reliable Sealing: O-Ring $33.5 \times 3 \text{ mm}$ (High-Quality)
O-Ring 33.5 x 3 – For Zongshen Engines ZS161FMJ, ZS166FMM, ZS169FMM and SPY Racing Quad SPY250/350
Small seals like this O-Ring are often the key to preventing annoying oil leaks. This specific O-Ring is required at various points in the crankcases and engine casings of Zongshen engines, where it must reliably seal moving parts or covers against engine oil. A hardened or cracked old O-Ring inevitably leads to leaks.
This high-quality O-Ring with dimensions of 33,5 x 3 mm is the precise replacement, made from heat- and oil-resistant material. It restores the full sealing integrity of the engine system, suitable for a wide range of 250cc to 350cc Zongshen engines.
✨ Your Benefits at a Glance:
-
Guaranteed Sealing: Effectively prevents engine oil from escaping at critical points in the casing.
-
Precise Dimension: Exact measurements of 33.5 mm inner diameter and 3 mm material thickness.
-
Material Resistance: Manufactured to withstand the high temperatures and aggressive chemicals of engine oil.
-
Broad Compatibility: Fits common engines in SPY Racing Quads (ZS166FMM, ZS169FMM) and other models (ZS161FMJ).
✅ Perfect Fit for the Following Engines & Models:
This replacement part is needed at various positions in the following engine types:
| Manufacturer | Engine Types (Examples) | Dimensions | Application |
| Zongshen | ZS161FMJ, ZS166FMM, ZS169FMM | 33.5 x 3 mm | Various engine internal seals |
| SPY Racing | SPY250F1/F3, SPY350F1/F2 | (as above) | Internal engine sealing points |
Manufacturer Number: 90101-20335000300
⚠️ Important Installation Notes:
-
Cleanliness: Thoroughly clean the grooves and sealing surfaces of old oil and residue before inserting the new O-Ring.
-
Lubrication: Lightly grease the O-Ring with fresh engine oil to facilitate assembly and prevent damage during installation.
-
Position: Ensure the O-Ring is not twisted in its groove.
Secure the sealing of your Zongshen engine – with this precise O-Ring!