BD Exhaust Manifold Kit for Dodge/RAM 1500–3500 2009–2022 5.7L HEMI — High‑Silicon Ductile Iron & Hardware Included

This kit replaces the factory manifolds with a thicker, high‑silicon ductile iron design and includes all gaskets, longer fasteners with spacers, and revised heat‑shield mounting to improve long‑term reliability on demanding engines. It is built to address the common problems that arise from thermal cycling and stress on the exhaust flange hardware while maintaining fitment for specified model years. Note: the kit does not fit 2019+ DT body style vehicles.

How does this manifold kit improve durability compared with stock parts?

The BD Diesel manifold is engineered with material and geometry choices that reduce deformation and hardware fatigue. A thicker casting using high‑silicon ductile iron offers better dimensional stability at elevated temperatures, while redesigned fasteners and spacers accommodate thermal growth so bolts remain secure.

• High‑silicon ductile iron resists warping under heat
• Thicker flange and body for improved rigidity
• Longer bolts with spacers to manage thermal expansion
• Independent heat‑shield mounting to isolate loads

What components are included and what do I get in the kit?

The BD 1041463 kit is a complete replacement package intended to simplify installation and avoid missing parts during reassembly. Everything needed for a proper seal and secure mounting of the manifolds is supplied, so you won’t need to source additional gaskets or hardware.

• Pair of BD Diesel exhaust manifolds cast in high‑silicon ductile iron
• Full set of gaskets tailored for 5.7L HEMI ports
• Longer fasteners and spacers specifically designed for thermal movement
• Mounting pieces for the revised heat shield arrangement

Will these manifolds fit my Dodge/RAM truck and what should I check before ordering?

The kit lists compatibility with 2009 through 2022 Dodge/RAM 1500, 2500, and 3500 trucks equipped with the 5.7L HEMI engine, but it excludes 2019 and newer DT body style models. Confirm your year, body style, and engine displacement before ordering to ensure correct fitment.

• Fits 5.7L HEMI engines in 2009–2022 model years (check vehicle specifics)
• Does not fit 2019+ DT body style — verify chassis code
• Designed to use factory exhaust routing and connections where applicable
• Includes all required gaskets and fasteners for direct replacement

How does the heat‑shield redesign affect long‑term reliability?

BD separates the heat‑shield mounts from the primary manifold fasteners so thermal and mechanical loads no longer act on the same hardware. This reduces stress concentrations at bolt locations and lowers the chance of fastener loosening or manifold distortion over time.

• Independent heat‑shield mounting isolates loads from bolts
• Reduces cyclic stress that leads to bolt failure
• Maintains shield positioning without compromising flange integrity

Who is this for: This BD Diesel 1041463 manifold kit is intended for owners and technicians who want a durable OE‑style replacement for the 5.7L HEMI exhaust manifolds. It’s especially useful for trucks exposed to heavy duty use, towing, or frequent high‑temperature cycling, and for anyone replacing failed or fatigued factory manifolds. If your vehicle is a 2019+ DT body style, please consult fitment charts or BD support for alternatives.