eMagTech 2 Pcs Coolant O Ring 33.7 x 3.5 mm Compatible with Subaru Impreza WRX STI 1990 2025

["- Vehicle Fitment: Compatible with Subaru Impreza WRX STI 1990-2025 and other applications using 33.7 x 3.5 mm metric seals; confirm groove size before purchase.","- OEM Cross-Reference: replace OEM 806933010 for coolant pipe, radiator hose, heater hose, and thermostat housing joints; verify the part number on the old seal.","- Durable Material: NBR nitrile rubber resists common coolants and oils; 33.7 mm inner diameter with 3.5 mm cross section seats securely without added sealants.","- Cooling Performance: Helps maintain system pressure, limit air entry, and support stable engine temperature during normal operation.","- Easy Installation: Lightly lubricate, seat evenly, and torque related fittings to specification; suitable for DIY, routine maintenance, shop service, road spares, and track prep."]