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If you drive a Chrysler 300, a worn or damaged exhaust manifold can cause noise, fumes, and reduced engine performance. Choosing the right exhaust manifold matters because fitment, heat tolerance, and sealing quality affect drivability, emissions, and long-term durability. This guide shortlists the top options for the Chrysler 300 and explains the factors we weighed, including fit accuracy and thermal resistance. Read on to see the vetted picks and the criteria used to evaluate them before you decide which option suits your needs.
Looking for other parts? See all Chrysler 300 parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | PartCatalog Left Exhaust Manifold for Chrysler 300 3.5L V6 |  |
| Best Quality Built to a higher standard if you want something more solid | PartCatalog Right Exhaust Manifold for Chrysler 300 3.5L V6 (2005–2010) |  |
| Best Value The sweet spot between price and what you get | Dorman 674-473 Exhaust Manifold Kit with Gaskets and Hardware |  |
| Best Budget The cheapest option that still gets the job done reliably | Dorman 674-909 Driver Side Exhaust Manifold Kit with Gaskets and Hardware |  |
| Highest Rated A top-rated pick with lots of positive feedback | Dorman 674-905 Passenger-Side Exhaust Manifold Kit (includes gaskets and hardware) |  |
| Best Seller A high-volume bestseller chosen again and again | Dorman 674-913 Passenger Side Exhaust Manifold Kit (includes gaskets and hardware) |  |
1. PartCatalog Left Exhaust Manifold for Chrysler 300 3.5L V6
| Position | Left |
|---|---|
| Manufacturer | PartCatalog |
| Manufacturer Part Number | PC-589556 |
This PartCatalog left exhaust manifold is offered as a factory-quality replacement for the left bank of the 3.5L V6 Chrysler 300. It replaces a damaged or cracked original manifold and is intended to install in the same location with the same mounting points for a straightforward swap. The listing emphasizes OE-spec manufacturing for an exact fit and smooth operation, which reduces modification or machine work during installation. Buyers can expect the manifold to restore proper exhaust routing, help eliminate leaks that cause ticking or poor idle, and maintain emissions and backpressure similar to the original part. Because it is a direct replacement, it is best used during repairs rather than performance upgrades where custom headers would be chosen. The product appears to include a single left manifold and relies on the purchaser to confirm fitment via the vehicle fitment chart before ordering.
Best for: Balanced all-round buyers who want a reliable, factory-style replacement that restores original exhaust function without fuss or modification.
Less Ideal for: Enthusiasts seeking increased performance, reduced weight, or custom exhaust tuning should consider aftermarket headers instead.
- Marketed as an OEM-style direct replacement for straightforward installation
- Designed to match original mounting points for minimal fitment issues
- Restores proper exhaust sealing to reduce leaks and exhaust noise
- Not intended for performance improvements compared with aftermarket headers
- Fitment must be verified against the vehicle chart before purchase
- Limited visible specification detail provided in the listing
Verdict: A straightforward factory-quality left exhaust manifold replacement that restores original exhaust function on the Chrysler 300 3.5L V6.
2. PartCatalog Right Exhaust Manifold for Chrysler 300 3.5L V6 (2005–2010)
| Brand | PartCatalog |
|---|---|
| Manufacturer Part Number | PC-589532 |
| Position | Right |
This right-side exhaust manifold is a factory-style replacement designed to restore exhaust flow and sealing on Chrysler 300 3.5L V6 models from 2005 to 2010. It replaces a damaged or cracked manifold and installs as a direct swap for the original part, which simplifies labor and reduces modification time. The listing emphasizes OE-equivalent manufacturing and fit, so it should line up with existing bolt locations and gasket surfaces for proper sealing and minimal exhaust leaks when installed correctly. For performance-focused owners, a sound, leak-free manifold preserves backpressure characteristics and exhaust scavenging that the engine was tuned around, helping maintain throttle response and midrange power. The main limitation is that this is a stock-style replacement rather than a performance-upgraded header, so it will not increase flow or horsepower beyond factory levels. Buyers should also verify fitment against their vehicle before purchase and expect professional installation for best results.
Best for: Performance-oriented owners seeking a high-quality, factory-spec replacement to restore correct exhaust sealing and preserve the Chrysler 300's stock engine characteristics.
Less Ideal for: Drivers looking for aftermarket performance gains or increased exhaust flow should consider dedicated performance headers or tuned exhaust components instead.
- Designed to factory specifications for a direct fit to the right side of Chrysler 300 3.5L V6 (2005–2010)
- Manufactured as an OEM-style replacement to restore proper sealing and exhaust routing
- Simplifies installation compared with custom or performance headers due to matching bolt locations and surfaces
- Helps maintain the engine's original exhaust backpressure and midrange response
- Not a performance header so it will not improve flow or increase horsepower over stock
- Buyer must confirm exact fitment from the seller images and may need professional installation
Verdict: A factory-style right-side replacement manifold that restores correct exhaust sealing and preserves the Chrysler 300 3.5L V6's factory performance characteristics.
3. Dorman 674-473 Exhaust Manifold Kit with Gaskets and Hardware
| Manufacturer | Dorman Products |
|---|---|
| Model | 674-473 |
| Includes | Gaskets and downpipe hardware |
| Exterior | Machined |
This Dorman exhaust manifold kit is a complete, ready-to-install replacement intended to restore exhaust routing and seal integrity on compatible Chrysler 300 and select Dodge models. It ships with the manifold, necessary gaskets, and downpipe hardware so you can perform the repair in one visit without sourcing extra parts. The part is described as precision-engineered to match the fit and function of the original manifold and is machined for a consistent sealing surface, which helps reduce leaks and makes installation simpler for a DIYer or independent shop. Its durable construction aims to resist warping and cracking that cause exhaust leaks over time. The main limitation is that fitment is vehicle-specific, so you must confirm year and trim compatibility before purchasing, and it is an aftermarket replacement rather than a factory part which may differ slightly in finish or mounting details. For owners focused on getting a complete, lower-cost repair with included hardware, this kit keeps the job straightforward and avoids multiple orders for missing pieces.
Best for: Practical optimizers who want a cost-effective, complete repair solution that minimizes returns and extra parts sourcing when replacing a failed manifold on a Chrysler 300 or specified Dodge models.
Less Ideal for: Buyers seeking a dealer-sourced factory part or those who need universal fitment across many vehicle types should consider alternatives.
- Includes all required gaskets and downpipe hardware for a one-order repair
- Machined exterior and engineered to match fit and function of the original manifold
- Durable construction designed to resist warping and cracking
- Saves time and cost compared with ordering multiple parts separately
- Aftermarket part may differ in finish or minor mounting details from factory unit
- Compatibility is limited to specific Chrysler and Dodge model years and trims
Verdict: A complete, budget-minded replacement manifold kit that includes gaskets and hardware to get Chrysler 300 exhaust repairs done in one go.
4. Dorman 674-909 Driver Side Exhaust Manifold Kit with Gaskets and Hardware
| Manufacturer | Dorman Products |
|---|---|
| Model | 674-909 |
| Automotive Fit Type | Universal Fit |
| Position | Center |
This Dorman driver-side exhaust manifold kit is a budget-focused replacement designed to restore a leaky or cracked manifold on compatible Chrysler 4.7L engines. It ships as a complete repair package with the manifold, gaskets, a heat shield, and downpipe fasteners so you typically only need this one part to stop exhaust leaks and get the car back to quiet, normal operation. The casting is beefier than many factory units which reviewers say helps longevity, though the port edges and finish can be a little rough and may benefit from light port matching before installation. Installation is straightforward for a competent DIYer or a shop familiar with the Chrysler 4.7L layout; the kit does not include head-to-manifold bolts so you should confirm retained hardware. For owners repairing a Chrysler 300 with the 4.7L V8 who want a lower-cost, complete repair option, this manifold offers reliable sealing and fewer follow-up parts to chase, but buyers seeking exact factory appearance or a premium machined finish may prefer a higher-end OEM-quality alternative.
Best for: Budget-conscious owners focused on a cost-effective, complete repair for a Chrysler 300 with the 4.7L V8 who prefer a ready-to-install kit and are comfortable with minor finish work.
Less Ideal for: Buyers who want an exact factory-styled finish or a premium machined manifold should consider higher-end factory-quality replacements instead.
- Complete kit includes manifold, gaskets, heat shield, and downpipe hardware for a one-order repair
- Beefier casting than many stock manifolds, which can reduce cracking and warping
- Engineered to match fit and function of the original manifold for compatible Chrysler 4.7L vehicles
- Lower-cost alternative to a factory replacement while covering common repair needs
- Port faces and casting finish are somewhat rough and may require light port matching
- Does not include manifold-to-head fasteners, which may need to be reused or purchased separately
Verdict: A low-cost, all-in-one replacement manifold kit that fixes exhaust leaks on Chrysler 4.7L applications without needing multiple orders.
5. Dorman 674-905 Passenger-Side Exhaust Manifold Kit (includes gaskets and hardware)
| Installation Type | Bolt-On |
|---|---|
| Automotive Fit Type | Universal Fit |
| Manufacturer | Dorman Products |
| Exterior | Machined |
This Dorman passenger-side exhaust manifold kit is a direct replacement designed to restore a leaking or warped manifold on compatible Chrysler and Dodge Hemi applications. It ships with the gaskets and downpipe fasteners needed to complete the repair, which makes it convenient for a single-purchase fix when replacing a failing manifold. The part is machined for a factory-style fit and is intended to resist warping and cracking compared with worn originals. Installers report the manifold lines up well on the correct side and that it cured common Hemi ticking caused by cracked manifolds. Some users needed to swap or modify a few bolts during installation because head bolts are not included and in rare cases minor trimming was required to match mating surfaces. For reliability-focused owners this kit offers a practical, tested replacement that simplifies a repair, but expect to verify fit for your Chrysler 300 application and have basic shop tools and a selection of bolts on hand for a clean install.
Best for: Reliability-focused buyers who prioritize a one-purchase repair solution and want a tested, factory-style replacement to stop exhaust leaks and Hemi ticking on their Chrysler 300.
Less Ideal for: Buyers who expect a fully bolt-ready swap with every head fastener included or those unwilling to perform minor adjustments during installation should consider a different option or source the missing hardware beforehand.
- Includes necessary gaskets and downpipe hardware for a more complete repair
- Machined exterior and reverse-engineered fit intended to match factory mating surfaces
- Durable construction aimed to resist warping and cracking for longer service life
- Saves time by combining manifold and common install hardware in one kit
- Does not include manifold-to-head bolts so additional fasteners may be required
- Some units have needed minor fitment trimming or bolt length adjustments during installation
Verdict: A ready-to-install passenger-side replacement manifold that supplies gaskets and downpipe hardware to reliably fix Hemi exhaust leaks on supported Chrysler models.
6. Dorman 674-913 Passenger Side Exhaust Manifold Kit (includes gaskets and hardware)
| Manufacturer | Dorman Products |
|---|---|
| Automotive Fit Type | Vehicle Specific Fit |
| Exterior | Machined |
| Manufacturer Part Number | 674-913 |
This Dorman exhaust manifold kit supplies a ready-to-install passenger-side replacement intended to restore a factory-quality exhaust connection. It ships with the heat shield, gaskets, and downpipe hardware so you can complete the repair in one visit to the garage rather than sourcing parts separately. The manifold is machined for a close fit to the original and is marketed as a direct replacement for specified Chrysler-family applications; many owners report straightforward bolt-on installation when the correct fitment is selected. Built materials are chosen to resist warping and cracking so the repair holds up under normal driving. A few reviewers noted occasional missing fasteners or fitment variance on nonexact matches, so confirm the exact Chrysler 300 year/engine fitment before ordering and inspect the box on arrival. For routine replacement of a leaking or cracked passenger-side manifold this kit reduces downtime and simplifies parts sourcing compared with buying individual components.
Best for: Risk-averse mainstream buyers who prioritize a dependable, factory-style repair with all needed parts included and minimal troubleshooting during installation.
Less Ideal for: Avoid this kit if you are building a performance-modified Chrysler 300 or require a custom-ported manifold; it is intended for routine stock replacement rather than performance upgrades.
- Includes necessary gaskets, heat shield, and downpipe hardware for a one-order repair
- Machined exterior finish for closer fit and reduced prep work
- Designed to match original fit and function for vehicle-specific applications
- Durable construction aimed to resist warping and cracking under normal use
- Some customers reported missing bolts or gaskets in individual packages
- Fitment can vary if vehicle trim or year is not matched exactly
Verdict: A complete passenger-side manifold kit that simplifies a factory-style exhaust repair by including the gaskets and hardware needed for installation.
Choosing the Right Chrysler 300 Exhaust Manifold: Key Factors to Consider
Fitment and Compatibility
Accurate fitment is essential because an exhaust manifold that does not align with the cylinder head and mounting points will be difficult to install and unlikely to seal properly. Verify that bolt hole patterns, flange shape, and overall geometry match the Chrysler 300 engine variant you own. Poor fitment increases the risk of exhaust leaks, promotes gasket failure, and can place undue stress on studs and bolts. Consider whether the part lists compatibility with your exact model year and engine code. Items designed to be direct replacements reduce the chance you will need modifications or additional hardware during installation. If a manifold requires adaptor plates or alterations, factor the extra labor and potential leak points into your decision.
Material and Heat Resistance
Manifolds are exposed to extreme temperatures and repeated thermal cycling, so the base material and any coatings matter for longevity. Cast iron typically offers good heat tolerance and vibration damping, while stainless steel can resist corrosion and handle thermal stress when properly designed. Materials with higher thermal fatigue resistance are less likely to develop cracks over time. Surface coatings or ceramic finishes can reduce heat transfer to nearby components and slow corrosion, but they should be applied consistently. Evaluate how the material performs over time in hot, humid, or salty environments if you expect exposure to those conditions.
Sealing and Gasket Interface
A reliable seal between the manifold and the cylinder head prevents exhaust leaks that can cause noise, reduced backpressure control, and potential engine management issues. Look at flange flatness, gasket type compatibility, and whether a manifold requires a specific gasket design. Some gaskets compress better and maintain a seal under thermal cycling, while others are more prone to blowouts if flanges warp. Proper torque specifications and the condition of studs or bolts also affect sealing performance. When replacing a manifold, use gaskets rated for exhaust service and ensure mating surfaces are clean and undamaged.
Durability and Crack Resistance
Repeated heating and cooling can induce stress that leads to cracks, particularly where the manifold geometry creates hot spots. Design features that reduce stress concentrations, such as smoother bends and gradual transitions, help reduce the chance of cracking. Manufacturing quality, including consistent wall thickness and sound casting or welding practices, influences long-term durability. Consider whether the manufacturer provides information on thermal cycling tests or quality control. A more durable manifold reduces the likelihood of recurring leaks and the need for future replacements.
Corrosion Protection
Exposure to moisture and road salts can cause manifolds to corrode, which weakens flanges and studs and can accelerate gasket failure. Materials like stainless steel and coated cast iron resist corrosion better than untreated metals. Protective coatings, ceramic finishes, or stainless hardware slow degradation in harsh climates. Evaluate whether fasteners are included and whether they are treated for corrosion resistance. Choosing a manifold with favorable corrosion protection can extend service life and lower the chance of emergency repairs.
Ease of Installation and Serviceability
Installation complexity affects labor time and the likelihood of a correct repair. Direct-fit manifolds that align with factory studs and accept standard gaskets reduce installation time. Consider if the design requires removal of surrounding components or special tools, which increases labor and error risk. Accessibility to studs and bolts, use of common torque specs, and clear instructions improve the chance of a proper seal and long-term reliability. Also think about future serviceability, such as whether the manifold allows for straightforward inspection and replacement of gaskets or studs without extensive disassembly.
How We Chose the Best Chrysler 300 Exhaust Manifold
We focused on components designed specifically for the Chrysler 300 and evaluated candidates against practical, vehicle-specific criteria. Primary filters included precise fitment to the engine and mounting points, material and thermal resistance to withstand exhaust temperatures, and gasket sealing performance to limit leaks. We also considered flange flatness and finish to promote a reliable seal, manufacturing tolerances that reduce installation issues, and corrosion resistance for long-term durability. We excluded parts that lacked clear vehicle compatibility data, those with inconsistent build quality reports, and any components intended only for racing or heavily modified engines that would not serve typical street-driven Chrysler 300s. Our selection prioritizes parts that balance OEM-level fit with improved longevity where applicable, while avoiding unproven experimental designs.
Our full evaluation process is outlined in our review methodology.
FAQ
What are common symptoms of a failing exhaust manifold on a Chrysler 300?
Common signs often include a ticking or tapping noise during cold start or acceleration, reduced engine performance, and a noticeable exhaust smell near the engine. You may also see decreased fuel economy or rough idling. These symptoms usually depend on leak size and location and can overlap with other issues.
How can I diagnose an exhaust manifold leak safely?
You can often detect leaks by listening for ticking noises with the engine at idle and during light acceleration, or by feeling for escaping exhaust near the manifold while the engine is warm. A smoke test or using a soapy water check when safe can reveal leak points. Whenever working near a hot engine, allow it to cool first and follow safety precautions.
When should I consider exhaust manifold replacement instead of repair?
Replacement is usually advised when cracks or severe warping make a reliable seal impossible, or when corrosion has compromised mounting flanges or studs. Minor leaks caused by loose bolts or degraded gaskets can sometimes be addressed without replacing the manifold. Evaluate the extent of damage and whether repair would be durable under normal operating conditions.
Do exhaust manifold gaskets need to be replaced during a manifold swap?
Yes, gaskets should generally be replaced whenever the manifold is removed to ensure a proper seal. Reusing old gaskets can increase the risk of leaks because they may have compressed or deteriorated from heat exposure. Use gaskets specified for exhaust service and follow correct torque procedures on reassembly.
Can a cracked exhaust manifold affect engine sensors or performance?
A crack can allow extra air into the exhaust stream or let exhaust gases escape before sensors, which may alter readings and affect engine management. This can lead to decreased performance, rough running, or diagnostic trouble codes. The severity depends on crack size and location relative to sensor placement.
Conclusion
When choosing an exhaust manifold for a Chrysler 300, prioritize fitment accuracy, material heat resistance, and sealing quality. Those factors most directly affect noise, emissions control, and long-term durability. Balance corrosion protection and ease of installation against durability needs based on your driving conditions and maintenance preferences. Addressing leaks or damaged manifolds promptly helps maintain engine performance and prevents secondary issues such as sensor faults or accelerated gasket wear.
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