TOYOTA 90301-49012 O-Ring

The genuine TOYOTA 90301-49012 O-ring is a precision sealing component designed to provide leak-free sealing across various vehicle fluid or gas systems. Manufactured in accordance with genuine OEM standards, this part offers exceptional elasticity, heat resistance, and chemical resistance, ensuring a reliable static or quasi-dynamic seal between mating surfaces.

Technical Description and Function

The purpose of the O-ring is to prevent the leakage of fluids (engine oil, coolant, fuel, or hydraulic fluid) or compressed gases at the joints between structural components. Seated within a machined groove, the seal undergoes slight deformation when the fasteners or bolts are tightened, creating a pressure-resistant seal.

• Part Type: Sealing Ring / O-Ring (Ring, O)
• Material Characteristics: High-durability synthetic elastomer (NBR/FKM or silicone depending on specification) resistant to oils, coolants, and thermal stress.
• Signs of Wear and Failure: Material hardening, cracking, flattening (loss of elasticity), fluid leaks, or pressure loss in the affected system. In the event of disassembly or overhaul, replacement of the O-ring is always mandatory.

Vehicle Compatibility

The O-ring with part number 90301-49012 is applicable to the following vehicle models:

• Toyota Celica (T200) [1993 - 1995]
• Toyota Corolla (E110) [2000 - ...]
• Toyota Hiace (H200) [2013 - ...]
• Toyota Lexus LS (XF40) [2012 - 2017]
• Toyota Previa (TCR1) [1990 - ...]