TOYOTA 43435-60020 Knuckle Gasket

The genuine TOYOTA 43435-60020 knuckle gasket is a premium quality, original OEM part that plays a vital role in protecting the front suspension and drivetrain. This gasket is positioned at the junction between the steering knuckle and the axle housing, ensuring a hermetic seal for the assembly.

Key Functions and Operating Principle

The primary purpose of the knuckle gasket is twofold:

• Lubricant Retention: Prevents the specialized grease inside the steering knuckle housing and gear oil from the axle area from leaking out, ensuring continuous, optimal lubrication for the constant-velocity joint (CV joint) and bearings.
• External Protection: Creates an effective barrier against environmental contaminants. It prevents water, mud, dust, and other abrasive particles from entering the rotating components, preventing premature wear and corrosion.

Typical Symptoms of Failure

When the gasket degrades or suffers damage, the following symptoms may be observed:

• Grease leakage or oil residue appearing on the steering knuckle sphere surface and on the inner side of the wheel.
• Metallic, grinding, or clicking noises when cornering, caused by lubricant starvation or ingress of sand and mud.
• Visible cracking, tearing, or physical deformation of the seal ring during visual inspection.

Technical Specifications

• Manufacturer: TOYOTA (Genuine OEM part)
• Part Number: 43435-60020
• Part Name: Knuckle Gasket
• Fitting Position: Front axle, steering knuckle / swivel housing
• Material Composition: High tensile strength, oil- and heat-resistant elastomer with metal reinforcement for maximum structural rigidity and durability