KTM Silicone O-Ring 84 × 2 mm | 0770840021

OEM silicone O-ring, catalogue size 84.00 × 2.00 mm. Sold individually. Verify dimensions, material and exact engine application; this is not a complete cylinder gasket set.

Genuine OEM part number: 0770840021.

Confirmed fitment examples

KTM 300 EXC 1999, European catalogue cylinder assembly.

These are documented examples, not a complete compatibility list. Confirm the exact model, market, VIN/serial limits and part number before ordering.

View the part-number application reference.

Canadian retail reference: CAD $8.00 before tax and shipping, checked October 25, 2026. This is an external supplier reference, not a claim of a former selling price at our store. Retail reference.

Clearance inventory. Sale is for the named component or kit only.