O-Ring 18x2.4 for Seal Cover

CF Moto O-Ring 18x2.4

OEM Part Number: 0180-021010 (Old # CF188-021010)

Specifications: ID 18mm × Cross Section 2.4mm

Application: For Seal Cover sealing

Fits CF Moto 150cc / 500cc / 600cc Multiple Engines

This O-ring is a high-quality OEM replacement seal for CF Moto engine seal covers. It is installed between the seal cover and the engine housing, preventing oil leakage and contaminant ingress. Directly replaces CF Moto OEM part number 0180-021010 (old part number CF188-021010), with dimensions 18mm × 2.4mm (ID × Cross Section).

This O-ring is made from high-quality oil-resistant rubber with excellent elasticity and resistance to oil and high temperatures, ensuring long-term reliable sealing. Fits various CF Moto engines, covering 150cc, 500cc, and 600cc displacements, including 157MJ-2, 157MJ-2A, 196S series, CF188 series, model years 2009-2017.

• Direct OEM Replacement: Perfectly matches CF Moto OEM part number 0180-021010 for precise fitment.
• Quality Oil-Resistant Rubber: Made from high-quality oil-resistant rubber, resistant to oil degradation and aging.
• Precise Dimensions: 18mm ID × 2.4mm cross section, perfect match for seal cover.
• Excellent Elasticity: Good elasticity ensures tight fit in the sealing groove for reliable sealing.
• High Temperature Resistance: Maintains stable sealing performance within engine operating temperature range.

✅ Importance of O-Ring: Although small, the seal cover O-ring plays a critical sealing role. If the O-ring ages, hardens, or becomes damaged, it can cause oil leakage from the seal cover mating surface, resulting in oil pressure loss, oil leaks, and in severe cases, engine damage due to insufficient oil. When removing the seal cover or during engine service, replace the O-ring to ensure proper sealing.

⚠️ Installation Note: Ensure the O-ring groove is clean and free of debris before installation. Apply a small amount of oil or grease to the O-ring for easier installation and to prevent damage. Check for leaks after installation.