Apex AMS3590 Fuel Injection Plenum Gasket Set - Upper

Reliable Fuel Injection Plenum Gasket Set for GM Vehicles

The Apex AMS3590 Fuel Injection Plenum Gasket Set is designed to provide a secure seal for the intake manifold on select Buick, Chevrolet, Oldsmobile, and Pontiac models. This gasket set helps maintain proper air and fuel delivery, ensuring engine performance and efficiency.

• Compatible with Buick 88, 98, LeSabre, Park Avenue, and Riviera models
• Fits Chevrolet Impala, Lumina, Monte Carlo, and LSS vehicles
• Suitable for Oldsmobile 88, 98, and Regency models
• Works with Pontiac Bonneville, Grand Prix, Intrigue, Regal, and Grand Prix
• Part number AMS3590 for precise identification and fitment

Durable Gasket Set for Air and Fuel Delivery Systems

This fuel injection plenum gasket set is engineered to withstand the thermal and mechanical stresses found in the intake manifold area. By providing a tight seal, the Apex AMS3590 helps prevent vacuum leaks and fuel vapor loss, which can lead to rough idling, reduced fuel economy, and engine performance issues. The gasket set is manufactured to meet OEM specifications for the listed GM makes and models, ensuring compatibility and reliable operation.

Applications and Common Issues Addressed

• Prevents vacuum leaks in the intake manifold
• Eliminates fuel vapor leaks that can trigger check engine lights
• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces rough idle and engine hesitation caused by gasket failure
• Supports overall engine performance and emissions control

Installation Notes and Tips

When installing the Apex AMS3590 gasket set, ensure the intake manifold surfaces are clean and free of old gasket material or debris. Proper torque specifications should be followed to avoid warping or damaging the gasket. It is recommended to inspect the intake manifold and related components for wear or damage during installation to ensure optimal sealing and performance.

Quality Assurance and Warranty

Apex manufactures the AMS3590 gasket set to meet industry standards for durability and fitment. While specific warranty details are not provided, Apex products typically undergo quality control testing to ensure reliable performance in compatible Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. Using the correct part number AMS3590 helps guarantee proper fit and function.