1968 Chevrolet Chevelle, Camaro, Impala, Caprice, Nova & Pickup Truck 396/427 NOS Smog Air Diverter Valve #7036448

Available for sale is a genuine General Motors New Old Stock (NOS) Smog Air Diverter Valve, GM part number 7036448, designed for select 1968 Chevrolet applications equipped with 396ci and 427ci big-block V8 engines. This original GM service replacement component is an increasingly rare find for restorers seeking factory-correct emissions and air injection system parts for their classic Chevrolet restoration.

During the late 1960s, Chevrolet incorporated Air Injection Reactor (A.I.R.) systems on many engine combinations to meet evolving emissions regulations. The smog air diverter valve was a critical component within this system, helping control and direct airflow from the engine-driven smog pump to various emission-control circuits. Proper operation of the diverter valve helped reduce exhaust emissions while maintaining engine performance and drivability.

The 1968 model year was significant for Chevrolet performance vehicles. Models such as the Chevelle SS 396, Camaro SS 396, Impala, Caprice, Nova, and Chevrolet pickup trucks equipped with big-block engines represented some of the most powerful and desirable vehicles of the muscle car era. Today, these vehicles remain highly collectible, and demand for authentic restoration components continues to grow.

The air diverter valve works by regulating the flow of fresh air supplied by the smog pump. This airflow is directed to specific areas of the exhaust system where it assists in the reduction of harmful emissions. A properly functioning valve helps maintain the operation of the original emissions system and contributes to factory-correct engine compartment appearance.

Over time, original diverter valves can suffer from internal wear, corrosion, damaged diaphragms, contamination, vacuum leaks, or mechanical failure. As a result, many vehicles have missing, modified, or non-functioning emissions components. Finding genuine replacement parts has become increasingly difficult as original inventories have been depleted.

This component is a true New Old Stock (NOS) GM service replacement part. Manufactured by General Motors during the original production era and never installed on a vehicle, it retains the original engineering specifications, materials, and quality standards intended for these applications. Unlike modern reproductions, genuine NOS components provide authentic factory fit, appearance, and performance.

For enthusiasts pursuing factory-correct restorations, emissions components are often among the most challenging parts to locate. Original A.I.R. system hardware is especially important for concours restorations, survivor vehicles, and collectors who value authenticity.

Whether you’re restoring a big-block Chevelle, Camaro, Impala, Caprice, Nova, or Chevrolet truck, this NOS air diverter valve provides an excellent opportunity to complete your engine compartment with a genuine GM component. Properly restored emissions systems contribute not only to originality but also to historical accuracy.

As supplies of original GM emissions components continue to disappear, authentic NOS service parts have become highly sought after by collectors and restoration professionals. This rare air diverter valve is an outstanding addition to any serious restoration project.

Product Features

• Genuine General Motors New Old Stock (NOS) part
• GM Part Number: 7036448
• Smog Air Diverter Valve
• Original A.I.R. (Air Injection Reactor) system component
• Factory-correct fit and appearance
• Designed for 396ci and 427ci big-block Chevrolet engines
• Supports proper emissions system operation
• Original GM service replacement part
• Never installed on a vehicle
• Ideal for concours and factory-correct restorations

Vehicle Compatibility

Fits select 1968 Chevrolet applications equipped with 396ci or 427ci V8 engines, including:

• 1968 Chevrolet Chevelle
• 1968 Chevrolet Chevelle SS 396
• 1968 Chevrolet Camaro
• 1968 Chevrolet Camaro SS 396
• 1968 Chevrolet Impala
• 1968 Chevrolet Caprice
• 1968 Chevrolet Nova (big-block equipped applications)
• 1968 Chevrolet Pickup Truck (396-equipped applications)

Compatibility may vary based on engine, emissions package, transmission, and production specifications. Buyers should verify fitment before purchase.

Condition

This component is offered in New Old Stock (NOS) condition. It has never been installed and remains an original GM service replacement part. Due to decades of storage, minor shelf wear, packaging marks, surface oxidation, or age-related imperfections may be present.

Please review all available photographs carefully to determine the exact condition of the item being offered.

For collectors and restoration enthusiasts seeking authentic emissions system components, this 1968 Chevrolet Chevelle, Camaro, Impala, Caprice, Nova & Pickup Truck 396/427 NOS Smog Air Diverter Valve #7036448 represents an excellent opportunity to acquire a genuine GM service part that helps preserve the originality, authenticity, and value of your classic Chevrolet restoration.