Apex ATC3590 Engine Timing Cover Gasket Set

Apex ATC3590 Engine Timing Cover Gasket Set

The Apex ATC3590 engine timing cover gasket set is built for GM V6 applications that need a precise seal at the timing cover. It supports leak repair on a wide range of Buick, Chevrolet, Pontiac, and Oldsmobile vehicles from 1995-2005.

Compatible With 2005 Buick LaCrosse, 2005 Buick LeSabre, 1995-2005 Buick Park Avenue, 2000-2005 Chevrolet Impala, 1998-2005 Chevrolet Monte Carlo, 2005 Pontiac Bonneville, 1997-2005 Pontiac Grand Prix, and additional listed applications. This part number, ATC3590, is also referenced for service identification when matching the correct timing cover gasket set.

Key Features

• Engine timing cover gasket set for sealing the front engine cover area
• Application-specific fitment for select Buick, Chevrolet, Pontiac, and Oldsmobile models
• Supports repair work on engines with the listed block casting note for certain 2005 applications
• Direct replacement service part identified by Apex part number ATC3590
• Fits a broad range of 1995-2005 vehicles across multiple GM nameplates

Detailed Description

Apex ATC3590 is an engine timing cover gasket set for vehicles listed in the fitment data, including Buick LeSabre, Buick Regal, Chevrolet Impala, Chevrolet Monte Carlo, Pontiac Grand Prix, and Pontiac Bonneville. Use this gasket set when servicing the timing cover and restoring the seal between the cover and engine block. The fitment list includes specific notes for 2005 Buick LeSabre and 2005 Pontiac Bonneville with engine block casting number 24506029, so matching the engine configuration is important before installation.

What It Helps Fix

• Oil seepage at the timing cover sealing surface
• Leaks caused by a worn or damaged front engine gasket
• Sealing issues after timing cover removal during engine service
• Loss of gasket integrity from age, heat, and mileage

Installation Notes and Tips

Confirm engine casting details and model-year fitment before ordering, especially on 2005 Buick LeSabre and 2005 Pontiac Bonneville applications with casting number 24506029. Clean all gasket mating surfaces thoroughly before assembly and inspect the timing cover for warpage, corrosion, or damage that could affect sealing. Follow the vehicle service manual for torque sequence and sealant requirements.

Quality Assurance

Apex identifies this timing cover gasket set as part number ATC3590 for accurate catalog matching and service lookup. Verify the vehicle application against the fitment list to ensure the correct engine sealing component is selected.