O Ring Kit for BMW E46 Cooling System, 20-Piece Rubber Gasket Set suitable for M52 M54 engines

Keep your BMW E46 cooling system running cleanly and reliably with this 20-piece O Ring Kit. Designed to fit a range of E46 engines (including M52 and M54) and compatible with models such as 320i, 323i, 325i, 328i, 330i and their Ci variants from the late 1990s to mid-2000s, this rubber gasket set provides multiple sizes to cover the most common seals around hoses and coolant passages. O-rings that crack or harden over time are a leading source of leaks in cooling systems; replacing them with the right seals helps maintain steady coolant pressure, prevents overheating, and reduces the risk of costly engine damage. Each gasket in the kit is crafted from durable rubber that resists high temperatures and wear, ensuring a tight, long-lasting seal even under engine heat and vibration.

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Benefits & Tips

• Ideal for complete cooling system rebuilds on E46 models (M52/M54 families) including 328i, 323i, 325i, 328i, 330i and related Ci variants.
• Use during maintenance to prevent leaks in hose connections and coolant channels, helping maintain consistent engine temp and cooling efficiency.
• Take advantage of the 20 distinct sizes included to ensure you have the right seal for common wear points and replacement projects, reducing trips to the parts store.

Product specifications

• Item Type: Cooling System O Ring Kit
• Brand: EBTOOLS
• Material: Rubber
• OE Numbers (reference): 13621743299, 17111711987, 11537802638, 11537545278, 11517514942
• Fitment: For BMW E46 with M52/M54 engines; covers 320i, 323i, 325i, 328i, 330i, and Ci variants (328i 1997–2006; 323i 1997–2006; 328Ci 2000–2006; 325Ci 2000–2006; 330Ci 2001–2006; 330i 2001–2006)
• Origin: Mainland China
• Package Contents: 20 x O Ring
• Weight: 31 g
• Special Features: Cooling System O Ring Kit

Package includes:

• 20 x O Ring

Warnings / Reminders

• Please double-check the part numbers listed for compatibility. The reference numbers are provided for compatibility guidance only.
• If you’re unsure about the item or which size you need, please contact us before purchasing to avoid unnecessary returns.