Timken 6818 Differential Pinion Seal - Rear

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Timken 6818 Differential Pinion Seal - Rear

Brand	Timken 6818
Position	Rear
Fits	Chevrolet · 49 vehicles

Precision sealing design. Helps prevent lubricant escape and keep contaminants out.

Reinforced outer case. Resists installation damage and adds durability.

Vent holes. Promote lubricant flow to cool seal components and reduce heat build-up.

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Timken 6818 Differential Pinion Seal

The Timken 6818 differential pinion seal is built for rear axle sealing where lubricant control and contamination exclusion matter. It is a direct-fit option for classic Chevrolet applications, including Bel Air, Caprice, Impala, El Camino, and Corvette models listed below.

Key Features

Precision sealing design helps keep gear oil in the differential and dirt out
Reinforced outer case resists installation damage and adds durability
Ribbed rubber inner diameter seals minor spindle imperfections and supports positive seating
Internal contamination exclusion system helps block debris that can lead to leakage
Vent holes promote lubricant flow around the seal lip to reduce heat buildup
Timken part number 6818 for rear differential service

Detailed Description

Timken 6818 is a rear differential pinion seal designed for Chevrolet rear axle applications that require dependable lubricant retention at the pinion area. It is used on 1955-1972 Chevrolet Bel Air, 1966-1972 Chevrolet Caprice, 1959-1972 Chevrolet Impala, 1964-1966 Chevrolet El Camino with 8.25 in. ring gear differential bearings and suitable for manual transmission countershaft bearing use, and 1956-1962 Chevrolet Corvette. The seal’s construction focuses on stable seating, contamination control, and heat management for long-term driveline service.

This part cross-references no additional part numbers in the provided data. Timken 6818 is a practical choice when servicing a rear pinion seal on classic Chevrolet rear axle assemblies, including Bel Air, Impala, and Corvette applications.

What It Helps Solve

Gear oil leakage at the differential pinion area
Contamination entering the seal interface
Seal damage during installation
Heat buildup around the seal lip
Poor sealing on worn or slightly imperfect spindle surfaces

Installation Notes and Tips

Verify axle housing and seal dimensions before installation, including the 1.7 in. I.D. note where listed. Clean the sealing surface thoroughly, inspect the pinion area for wear, and install the seal squarely to avoid distortion. Confirm the application matches the rear position and the exact vehicle notes for your Chevrolet Bel Air, Impala, Caprice, El Camino, or Corvette.

Quality Assurance

Timken oil and grease seals are engineered with precision sealing features and reinforced construction to support reliable driveline service in demanding automotive applications.

Fits 1955-1972 Chevrolet Bel Air, rear
Fits 1966-1972 Chevrolet Caprice, rear
Fits 1959-1972 Chevrolet Impala, rear
Fits 1964-1966 Chevrolet El Camino, rear; compatible with 8.25 in. ring gear differential bearings and suitable for manual transmission countershaft bearing
Fits 1956-1962 Chevrolet Corvette, rear

This part fits 49 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Position	Notes
1972	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1972	Chevrolet	Caprice	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1972	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1971	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1971	Chevrolet	Caprice	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1971	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1970	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1970	Chevrolet	Caprice	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1970	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1969	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1969	Chevrolet	Caprice	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1969	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1968	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1968	Chevrolet	Caprice	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1968	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1967	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1967	Chevrolet	Caprice	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1967	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1966	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1966	Chevrolet	Caprice	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1966	Chevrolet	El Camino	Rear	Compatible with 8.25 in. Ring Gear Differential Bearings, suitable for Manual Transmission Countershaft Bearing.
1966	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1965	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1965	Chevrolet	El Camino	Rear	Compatible with 8.25 in. Ring Gear Differential Bearings, suitable for Manual Transmission Countershaft Bearing.
1965	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1964	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1964	Chevrolet	El Camino	Rear	Compatible with 8.25 in. Ring Gear Differential Bearings, suitable for Manual Transmission Countershaft Bearing.
1964	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1963	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1963	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1962	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1962	Chevrolet	Corvette	Rear	—
1962	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1961	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1961	Chevrolet	Corvette	Rear	—
1961	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1960	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1960	Chevrolet	Corvette	Rear	—
1960	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1959	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1959	Chevrolet	Corvette	Rear	—
1959	Chevrolet	Impala	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1958	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1958	Chevrolet	Corvette	Rear	—
1957	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1957	Chevrolet	Corvette	Rear	—
1956	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
1956	Chevrolet	Corvette	Rear	—
1955	Chevrolet	Bel Air	Rear	10 Bolt Housing Cover; 1.7 in. I.D.
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