NISSAN 43232-C9300 Rear Axle Shaft Grease Seal

Genuine Nissan OEM rear axle shaft grease seal (part number: 43232-C9300). This premium quality oil seal plays a crucial role in maintaining proper lubrication within the rear axle shaft and wheel hub assembly while keeping out contaminants.

Function and Importance

The primary function of the rear axle shaft grease seal (SEAL-GREASE) is to prevent lubricating grease or gear oil from leaking from the rear axle housing and differential toward the braking system. In addition, it hermetically seals the bearing housing, protecting the rolling elements from external moisture, dust, and other abrasive environmental contaminants. A failing seal can lead to loss of lubricant, premature bearing failure, and a drastic decrease in braking efficiency if leaking oil or grease reaches the braking surfaces.

Technical Specifications

• Manufacturer: NISSAN (Genuine OEM part)
• OEM Part Number: 43232-C9300
• Product Type: Rear axle shaft seal / grease seal
• Fitting Position: Rear axle (left or right side)
• Material Composition: High heat- and wear-resistant elastomer (NBR/synthetic rubber) with a steel reinforcement casing and garter spring tension for maximum radial sealing integrity.

Typical Signs of Wear and Failure

• Appearance of oil or grease spots on the inner side of the rear wheel, brake backing plate, or wheel rim.
• Sudden or progressive loss of braking effectiveness due to lubricant contaminating the brake pads, brake shoes, drums, or brake discs.
• Unusual humming, rumbling, or grinding noises from the rear wheel bearing caused by lubricant starvation and contaminant ingress.

To ensure safe operation and avoid further structural damage, a damaged or leaking oil seal should be replaced immediately. Professional installation following manufacturer specifications and torque ratings is recommended.