A-Premium Exhaust Manifold Kit for 2.4L DOHC 4-Cyl (2015–2017 Equinox/Terrain) — Cast Iron, Gaskets & Hardware

A-Premium's DOHC 4-cylinder 2.4L exhaust manifold kit is a cast-iron, direct-replacement assembly that includes gaskets and hardware to restore proper exhaust routing on compatible Chevrolet Equinox and GMC Terrain models.

This complete manifold kit is engineered as a factory-style replacement for 2015–2017 Chevrolet Equinox and GMC Terrain models equipped with the 2.4L DOHC engine (excluding vehicles with RPO code NU6/PZEV). The kit arrives with a manifold, two gaskets, and the necessary nuts and bolts so you can reinstall a secure, leak-resistant connection between cylinder head and exhaust system without sourcing separate parts.

What vehicles does this A-Premium manifold fit?

This manifold is designed specifically for GM's 2.4L DOHC engines in certain Equinox and Terrain model years. It is not intended for California-emissions PZEV vehicles with RPO code NU6; always verify fitment using your VIN or the compatibility tool before ordering.

• Chevrolet Equinox 2015 L4 2.4L (non-NU6), 2016–2017 L4 2.4L
• GMC Terrain 2015 L4 2.4L (non-NU6), 2016–2017 L4 2.4L
• Reference numbers: 674-773, 674773, 12672285, 12656404 for cross-checking

How does this kit improve exhaust performance and durability?

Built from cast iron, the manifold resists the thermal cycling, corrosion, and deformation that cause leaks and reduced engine efficiency. Replacing a cracked or warped manifold restores proper exhaust flow and helps maintain backpressure characteristics expected by the engine management system.

• Cast-iron construction for heat and corrosion resistance
• Rectangular ports matched to cylinder head flanges for secure sealing
• Includes new manifold and flange gaskets to prevent exhaust leaks

What comes in the box and what installation preparations are needed?

The kit arrives with the exhaust manifold, a manifold gasket, a flange gasket, three nuts, and three bolts—packaged in a reinforced box for shipping protection. Basic mechanical tools and a torque wrench are recommended; replace any rusted studs or bolts on the vehicle and inspect the mating surfaces for warping or carbon build-up before installation.

• Included: 1× exhaust manifold, 1× manifold gasket, 1× flange gasket, 3× nuts, 3× bolts
• Heat shield: not included—verify if your vehicle requires a shield and source separately if needed
• Installation tip: clean flange surfaces and torque fasteners to manufacturer specs

Does A-Premium back this manifold with a warranty?

A-Premium provides a one-year, unlimited-mileage guarantee on this exhaust manifold kit, covering manufacturing defects for the stated period. For best results keep proof of purchase and contact A-Premium support for warranty assistance or questions about compatible parts.

• One-year unlimited-mileage warranty against defects
• Customer support available for fitment and replacement guidance
• Verify compatibility using VIN or the compatibility system before ordering

Who is this kit for: Drivers and mechanics who need a robust, OEM-style exhaust manifold replacement for 2.4L DOHC Chevrolet Equinox or GMC Terrain vehicles (non-PZEV). This kit is aimed at owners restoring proper exhaust sealing and durability without aftermarket modifications—ideal for DIY installers, independent shops, and fleet maintenance teams who want a straightforward direct-replacement part with included gaskets and hardware.