BMW 1/3 Series & X1 & Z4 Cooling System O-Ring (2003–2016)

Correct cooling system o-ring fitment on BMW 1/3 Series & X1 & Z4 from 2003–2016 starts with the vehicle-specific BMW application. This Original BMW component seals the mating connection against fluid or pressure loss. The supported range includes 128i, 135i, 135is, 325i, 325xi, and 328i, plus additional listed variants. BMW states that Original BMW Parts are designed, tested, and manufactured by BMW.

Technical Details

• Manufacturer part number: 17-22-7-581-147
• Component: Cooling System O-Ring
• Manufacturer: BMW
• Vehicle applications: BMW 1/3 Series & X1 & Z4
• Primary function: seals the mating connection against fluid or pressure loss
• Production range: 2003–2016
• Listed models: 128i, 135i, 135is, 325i, 325xi, and 328i, plus additional listed variants

Fitment & Compatibility

Match the vehicle to the fitment table below before installation, paying attention to submodels and notes. Confirm the exact installation location, vehicle equipment, and production date. PMB Performance can review the VIN when model-year or equipment details are unclear, drawing on more than 20 years of European-parts experience.