A-Premium Exhaust Manifold Kit for Ram V8 5.7L/6.4L Right Side — Cast Iron, w/ Gasket & Heat Shield

A-Premium Right Exhaust Manifold Kit is a direct-replacement cast-iron manifold with gasket, bolts and heat shield engineered to restore exhaust sealing and durability on Ram 5.7L and 6.4L V8 engines.

This exhaust manifold kit from A-Premium is built to match OEM fit and basic form for selected Ram 1500, 1500 Classic, 2500 and 3500 model years with V8 5.7L and 6.4L engines. It ships complete with the inlet gasket, two bolts, two nuts and an integrated heat shield, making it a practical one-package repair for right-side exhaust leaks, broken mounting studs, or corroded manifolds. The part is cast iron for improved heat resistance and is packaged to survive shipping so you receive the components ready for installation.

Which Ram models and engines does this manifold fit?

This kit is specified to fit a range of Ram trucks and model years for right-side V8 applications. Confirm your vehicle’s engine code and model year before ordering to ensure compatibility.

• Ram 1500 (2013–2018) V8 5.7L; 1500 Classic (2019–2024) V8 5.7L.
• Ram 2500 (2014–2019) V8 5.7L; 2500 (2014–2020) V8 6.4L; 2021 6.4L ESA designation.
• Ram 3500 variants (2013–2019) with 5.7L and 6.4L V8s, including crew, extended crew and standard cabs.
• Manufacturer reference numbers: 674-685, 674685, 5045486AA for cross-checking.

What components are included and what material is used?

The kit contains the manifold and the basic hardware required to secure it to the cylinder head, plus a pre-shaped inlet gasket and heat shield. All parts are prepared to be a direct replacement so installers can expect straightforward fitment with minimal modification.

• One right-side exhaust manifold (cast iron) and one inlet gasket included.
• Hardware: 2 bolts and 2 nuts supplied for primary mounting points.
• Integrated heat shield included to aid thermal protection of nearby components.
• Color: natural cast finish; packaging: reinforced box for transit safety.

How does this manifold affect durability and engine operation?

Constructed from cast iron, the manifold resists high temperatures and maintains structural integrity under thermal cycling. Proper exhaust sealing reduces leaks that can cause noise, poor throttle response or exhaust flow disruption, helping the engine run more consistently.

• Cast-iron construction improves heat resistance and longevity.
• Manufactured to OEM-style dimensions for sealing and alignment.
• Heat shield helps dissipate and redirect heat away from wiring and sensors.
• Direct-replacement design minimizes installation time and additional parts needed.

How should I verify fitment and prepare for installation?

Always match the vehicle VIN, engine displacement and manufacturer reference numbers before purchase. Basic hand tools and moderate mechanical experience are usually sufficient, but consider professional installation if access is limited or bolts are seized.

• Verify engine designation (5.7L or 6.4L) and model year against listed fitment.
• Compare part reference numbers 674-685 / 5045486AA with your OEM part.
• Inspect cylinder-head mounting surfaces and replace rusted studs or bolts as needed.
• Use anti-seize or new fasteners where appropriate and torque to spec during install.

Who is this for: This A-Premium right-side exhaust manifold kit is aimed at Ram truck owners, independent mechanics and fleet technicians who need a cost-effective direct-replacement part for 5.7L and 6.4L V8 engines. It suits anyone replacing a cracked or leaking manifold, swapping corroded hardware, or restoring OEM exhaust sealing without requiring custom fabrication.