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Picking the right fuel injector for your Chrysler 300 matters because injector condition directly affects fuel delivery, engine smoothness, and emissions. A worn or clogged injector can cause rough idle, reduced fuel economy, misfires, or hesitation during acceleration. This guide presents a shortlist of the top options for the Chrysler 300, focusing on injectors that match factory fitment and performance expectations.We evaluated spray pattern quality, flow-rate consistency, and build reliability when narrowing the list. Read on to understand the key criteria and tradeoffs to consider before you replace or upgrade the injectors on your vehicle.
Looking for other parts? See all Chrysler 300 parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Hsingach Fuel Injectors Set of 8, Direct Replacement for 5.7L Hemi |  |
| Most Popular A crowd favorite that many people choose with confidence | YZHIDIANF Upgraded Fuel Injectors for Chrysler 300 (0280158028) — 6 Pack |  |
| Best Quality Built to a higher standard if you want something more solid | Oktiger Fuel Injector Set for 5.7L HEMI (Set of 8) |  |
| Best Budget The cheapest option that still gets the job done reliably | MOCA AUTOPARTS 6-Pack Fuel Injectors (fits select Chrysler/Dodge 2.7L–4.0L) |  |
| Most Sold A high-volume bestseller chosen again and again | BELKEBIR Set of 6 Fuel Injectors FJ1147 for 3.6L V6 Chrysler/Dodge/RAM |  |
| Best Value for Money The sweet spot between price and what you get | Beefento Fuel Injectors 0280158028 — 6-Pack Replacement for Chrysler 300 and Compatible Chrysler/Dodge 2.7L–5.7L Engines |  |
| Best Overall The best all-around choice for most situations | A Plus Auto Fuel Injectors Set of 8 for Chrysler 300 5.7L Hemi |  |
1. Hsingach Fuel Injectors Set of 8, Direct Replacement for 5.7L Hemi
| Brand | Hsingach |
|---|---|
| Fitment | Chrysler 300 5.7L (2020-2023) |
| OEM Part Numbers | 5281568AA, 05281568AA, FJ1557 |
| Quantity | Set of 8 |
These Hsingach injectors are sold as an eight-piece, direct-replacement kit for 5.7L Hemi engines and are intended to restore proper fuel metering and idle quality on affected Chrysler 300 5.7L models. They install in the factory fuel rail and use OEM-style electrical connectors and O-rings, which simplifies fitment and helps avoid wiring or sealing issues during installation. The listing states each injector is tested before shipping and the kit includes spare O-rings, making it convenient for a multi-injector service job. In real-world use you can expect sharper throttle response, smoother idle, and the potential to clear misfire or efficiency-related check-engine codes when original injectors are worn. The main limitations are that this is an aftermarket replacement so long-term durability versus factory parts is not guaranteed and proper installation requires removing the intake plenum which is labor intensive; cleanliness of the rail and ports is critical to prevent leaks or failures. For a reliability-focused repair that restores factory behavior, this set covers all eight cylinders and arrives ready to install.
Best for: A reliability-focused buyer who wants a full, tested injector replacement to restore correct fuel delivery and stable idle on a Chrysler 300 5.7L and prefers a complete kit to minimize repeat labor.
Less Ideal for: Buyers seeking a guaranteed factory-lifetime replacement or those unwilling to accept the installation complexity and time required for intake/plenum removal should consider dealer or remanufactured options instead.
- Sold as a complete eight-piece kit to service all cylinders in one job
- OEM-style electrical connectors and O-rings for straightforward fitment
- Each injector is tested before shipment to verify operation
- Includes spare O-rings to replace damaged seals during installation
- Aftermarket part so long-term durability compared with factory parts is uncertain
- Installation requires intake removal and is labor intensive
Verdict A complete, tested eight-injector replacement that restores factory-style fuel delivery on the Chrysler 300 5.7L but requires significant labor and has the typical durability uncertainty of aftermarket parts.
2. YZHIDIANF Upgraded Fuel Injectors for Chrysler 300 (0280158028) — 6 Pack
| Material | Stainless Steel |
|---|---|
| Inlet Connection Size | 0.55 Inches |
| Number of Ports | 6 |
| Specification Met | IATF 16949:2016, ISO 14001:2015, ISO 9001:2015, ISO/IEC:17025:2017 |
These YZHIDIANF fuel injectors are an aftermarket replacement sold as a six-pack that matches the listed Chrysler 300 injector part numbers. They deliver measured fuel to each cylinder and are intended to restore smooth idle, reduce emissions, and improve fuel economy when worn injectors are replaced. Typical use is a direct swap into the engine fuel rail during routine repair or engine tune-up; the set includes spare O-rings which is helpful during installation. Notable features called out by the manufacturer include stainless steel internals, performance testing and multiple quality system certifications. In practice buyers report good fit and improved running on compatible Chrysler 300 model years and engines, though a few users noted occasional leaks when seals were damaged during installation. These injectors are a practical replacement for owners who want a ready-to-install kit and modest performance consistency without modifying the fuel system, but careful handling of O-rings and proper installation torque are important to avoid leaks.
Best for: Convenience-driven owners seeking a ready-to-install injector kit for routine maintenance or to cure running issues on a Chrysler 300 who prioritize ease of replacement and a complete set in one purchase.
Less Ideal for: Owners looking for factory-original parts coverage or high-performance upgrades tuned for racing should consider OEM or performance-specific injectors instead.
- Sold as a complete six-injector set for straightforward replacement of all cylinders
- Stainless steel internal components intended to resist corrosion and buildup
- Manufacturer reports performance testing and industry quality certifications
- Includes spare O-rings which can prevent installation delays if seals are damaged
- Some buyers reported occasional fuel leaks when seals were nicked or installation was imperfect
- Aftermarket fit can be shorter than some factory injectors which may affect rail locking on certain chassis layouts
Verdict A convenient six-piece aftermarket injector kit that can restore smooth running and efficiency on compatible Chrysler 300 engines if installed carefully and seals are inspected.
3. Oktiger Fuel Injector Set for 5.7L HEMI (Set of 8)
| Fitment | 5.7L V8 Chrysler/Dodge/Jeep/Ram models listed |
|---|---|
| Unit Count | 8.0 Count |
| Terminal Quantity | 2 |
| Material Type | Stainless Steel |
| O-Rings | Preinstalled |
These Oktiger injectors are a direct-replacement set of eight designed for Chrysler 300 and other 5.7L HEMI applications. They install like factory parts and are intended to restore precise fuel delivery, improve atomization, and return smooth idle and throttle response on engines that have worn or leaking injectors. Notable features called out by the manufacturer include metal/composite construction, preinstalled O-rings, blade terminals, and multi-point quality checks claimed to meet OEM specifications. For a performance-oriented buyer the practical benefits are predictable: restored power and responsiveness, reduced hesitation, and the potential for improved fuel economy when the original injectors were degraded. Limitations to keep in mind are that these are aftermarket units so fitment verification is important before purchase and long-term durability beyond the stated inspections depends on operating conditions; the listing also provides only a one-year warranty. Expect straightforward bolt-in installation on compatible 5.7L models but plan for standard shop labor or a qualified DIY install to ensure correct fuel rail handling and calibration where required.
Best for: Performance-oriented owners who want to restore or maintain throttle response and engine smoothness on a Chrysler 300 5.7L HEMI and prioritize parts that mirror factory operation.
Less Ideal for: Drivers who prefer extended OEM warranties or who are seeking lifetime-performance upgrades beyond a direct replacement should consider higher-end or dealer-sourced options.
- Complete eight-injector set tailored for 5.7L HEMI engines so all cylinders are serviced at once
- Built to OEM specification claims for direct-fit installation and factory-style operation
- Preinstalled O-rings and blade terminals simplify installation and reduce need for separate seal parts
- Corrosion-resistant construction and high-temperature rated components aimed at longer service life
- Aftermarket product with limited one-year warranty compared with many factory replacements
- Fitment must be double-checked against vehicle year and OEM part numbers before installation
Verdict A practical, performance-focused direct-replacement injector set for Chrysler 300 5.7L HEMI owners who want factory-like response without dealer parts.
4. MOCA AUTOPARTS 6-Pack Fuel Injectors (fits select Chrysler/Dodge 2.7L–4.0L)
| Brand Name | MOCA AUTOPARTS |
|---|---|
| Manufacturer | MPLUS OE SOLUTION AUTOPARTS |
| UPC | 731315409348 |
These MOCA AUTOPARTS fuel injectors are sold as a six-pack replacement intended to restore fuel delivery on affected Chrysler V6 engines. Installed as a direct-fit service part, they replace worn or leaking injectors to improve idle smoothness and throttle response when original injectors are aging. The listing emphasizes easy installation and claims factory-quality performance; in practice you can expect a straightforward swap if the injector electrical connector and rail interfaces match the factory parts on the Chrysler 300. The set is attractive for budget repairs because it supplies all six injectors at once and comes from a dedicated aftermarket parts supplier. Important limitations are typical of low-cost aftermarket injectors: long-term durability and flow matching may not equal factory parts, so expect variable longevity and the occasional need for cleaning or calibration. For an older Chrysler 300 showing rough idle, misfires, or poor fuel economy, this kit can be a cost-effective repair, but technicians should verify fitment and consider professional flow testing for best results.
Best for: Budget-conscious owners looking to restore drivability on an older Chrysler 300 by replacing all injectors at once without paying factory-part prices.
Less Ideal for: Owners wanting guaranteed long-term OEM-equivalent performance or those who prefer precision flow-matched injectors for high-performance tune-ups should consider higher-end alternatives.
- Six injectors included so all cylinders can be replaced at once
- Sold as a direct-fit aftermarket replacement for affected Chrysler V6 engines
- Marketed for straightforward installation, reducing labor complexity for DIYers
- Lower cost option compared with factory replacement injectors
- Durability and precise flow matching may be lower than factory replacement units
- Fitment and long-term performance depend on verifying connector and rail compatibility
Verdict A cost-effective six-pack replacement to quickly address injector-related drivability issues on Chrysler 300 V6 engines, but expect potential compromises in long-term flow consistency compared with factory parts.
5. BELKEBIR Set of 6 Fuel Injectors FJ1147 for 3.6L V6 Chrysler/Dodge/RAM
| Compatible engine | 3.6L V6 |
|---|---|
| Number of pieces | 6 |
| Number of ports | 4 |
| Inlet connection type | Socket Weld |
This BELKEBIR kit supplies six direct-replacement fuel injectors intended for 3.6L V6 Chrysler/Dodge/RAM engines. They install as a plug-and-play swap with pre-installed seals and a four-hole spray tip meant to improve fuel atomization for smoother throttle response and potential efficiency gains. The injectors are described as made from metal and plastic with corrosion- and heat-resistant materials, and the set is offered as a full-bank replacement so you can address worn or leaking units all at once. Practical benefits include simplified installation without special programming and getting a matched set for balanced fuel delivery. Important limitations are mixed quality control reports from users — several buyers reported faulty units that caused severe engine damage, so bench-testing or staging installation is recommended before driving extensively. For a risk-averse buyer, pairing these with careful inspection, testing, and a trusted installer reduces downside compared with installing unknown single units.
Best for: A risk-averse mainstream buyer seeking an affordable, full-bank replacement for a 3.6L V6 Chrysler 300 who values straightforward installation and restoring consistent engine performance.
Less Ideal for: Drivers who prioritize premium OEM-brand assurance or who prefer refurbished/rebuilt injectors tested and certified by an established remanufacturer should consider alternatives.
- Complete matched set of six injectors for full-bank replacement
- Plug-and-play design with pre-installed seals for straightforward installation
- Four-hole nozzle aimed at better fuel atomization and smoother acceleration
- Materials marketed as corrosion and heat resistant for longer service life
- Mixed quality control reported by users including some units failing on bench tests or in service
- Not backed by extensive manufacturer reputation compared with large OEM aftermarket brands
Verdict A budget-friendly full-bank replacement that can restore fuel delivery quickly but requires careful inspection and testing due to mixed quality reports.
6. Beefento Fuel Injectors 0280158028 — 6-Pack Replacement for Chrysler 300 and Compatible Chrysler/Dodge 2.7L–5.7L Engines
| Brand Name | Beefento |
|---|---|
| Model Number | 0280158028 |
| Unit Count | 6.0 Count |
| Valve Type | Globe Valve |
These Beefento fuel injectors are sold as a six-piece replacement set intended to restore fuel delivery on applicable Chrysler and Dodge V6/V8 engines, and specifically list fitment for Chrysler 300 2.7L and 3.5L model years around 2005–2010. In practice the kit provides uniform spray and flow control to improve combustion, which can reduce rough idle and improve perceived smoothness when worn injectors are replaced. The injectors are described as corrosion- and leak-resistant and are a direct-swap physical replacement for the specified engines. Important practical notes: some vehicles require injector coding or matching for the engine control module to maintain correct fuel trim, and these units do not include identification codes on the bodies, so additional programming or calibration may be needed after installation. For a buyer focused on value, the set covers all cylinders and can be a cost-effective route to refreshing an aging fuel system, but expect possible extra shop time for calibration and confirm exact engine year fitment before ordering.
Best for: Practical optimizers who want an affordable, full-set replacement to revive fuel delivery on older Chrysler 300s and who are willing to handle or pay for any post-install calibration.
Less Ideal for: Buyers seeking plug-and-play, code-matched injectors for late-model vehicles that strictly require injector ID programming should consider professionally matched or dealer-sourced units instead.
- Six injectors in one kit provide a full-cylinder replacement for V6/V8 engines
- Manufacturer states precise flow control and uniform atomization for improved combustion
- Constructed to resist corrosion and leaks for longer service life
- Listed to fit Chrysler 300 2.7L and 3.5L models, simplifying compatibility checks for those vehicles
- Injectors lack visible identification codes which may prevent direct plug-and-play on vehicles that require injector coding
- No explicit OEM part traceability or factory part number documentation in the product listing
Verdict A budget-friendly full set for restoring fuel delivery on older Chrysler 300 engines, but may require injector programming after installation.
7. A Plus Auto Fuel Injectors Set of 8 for Chrysler 300 5.7L Hemi
| Compatible engine | 5.7L Hemi V8 |
|---|---|
| Holes' quality | 4 |
| Dynamic flow | 127.0±5% ml/min |
| Static flow | 301.0±5% ml/min |
| Coil resistance | 12.5±1Ω |
These eight fuel injectors are a direct-fit replacement intended to restore balanced fuel delivery on Chrysler 300 models with the 5.7L Hemi. They install the same way as factory injectors into the fuel rail and intake runner and come preinstalled with O-rings and a basket inlet filter to help block debris. The listing specifies measured flow rates and spray cone angle and lists coil resistance and leakage tolerances, which indicates the set was tested for basic performance and sealing. In real-world use the injectors have improved idle smoothness and throttle response for many owners and are a practical option when worn or clogged injectors are causing misfires or rough running. Reports vary on long-term durability so expect mixed longevity compared with factory replacements; careful inspection of the fuel rail and proper seal lubrication during installation is advisable to avoid leaks. These are best suited as an affordable maintenance or repair choice when you need to get a 300 back to factory-like drivability without modifying the engine.
Best for: Balanced owners focused on restoring drivability and avoiding dealer service downtime who want a practical, cost-conscious replacement for a Chrysler 300 5.7L Hemi.
Less Ideal for: Do not choose this if you need guaranteed OEM longevity for high-mileage restoration projects or if you require performance injectors tuned for increased flow or power.
- Direct-fit set for Chrysler 300 5.7L Hemi that simplifies replacement of all eight injectors
- Preinstalled O-rings and inlet basket filter reduce installation steps and initial contamination risk
- Manufacturer-stated flow rates, spray cone angle, and coil resistance indicate tested performance consistency
- Generally improves idle smoothness and throttle response when replacing worn or clogged injectors
- Mixed user reports on long-term reliability compared with factory-quality injectors
- One-to-two units out of a set may show impedance variance outside tight factory tolerances, which can trigger engine diagnostics
Verdict A practical, budget-minded full set to restore Chrysler 300 5.7L Hemi drivability, but expect variable long-term durability compared with factory replacements.
Choosing the Right Chrysler 300 Fuel Injector: Key Factors to Consider
Spray Pattern And Atomization
An injector’s spray pattern determines how well fuel mixes with air in the combustion chamber. A consistent, fine atomization produces more complete combustion, which improves throttle response, fuel economy, and emissions. Variations in spray shape or droplet size can lead to uneven cylinder fills and rough running.
When evaluating injectors, look for evidence of uniform spray plume and minimal dribbling at shutoff. Differences in nozzle design or internal passages affect atomization, so matching the injector’s spray characteristics to the engine’s intake geometry matters for predictable performance.
Flow Rate Consistency
Flow rate, typically measured in cc/min, dictates how much fuel an injector delivers at a given pressure. Matching flow rates across all injectors is critical to maintain balanced air-fuel ratios between cylinders. Variations in flow can cause lean or rich conditions on individual cylinders, producing misfires, poor idle quality, or increased emissions.
For replacement or upgrades, choose injectors with documented, closely matched flow specifications. If you change injector type or size, you may need to adjust fueling calibration to keep combustion consistent and prevent engine management errors.
Electrical Characteristics And Connector Fit
Injector impedance and connector style affect how the vehicle’s fuel injection drivers command the injectors. Low-impedance and high-impedance injectors behave differently with the same injector driver circuitry, which can influence pulse width and heat generation.
Ensure the replacement injector matches the electrical impedance and connector design of the original equipment to avoid excessive current draw, poor firing behavior, or connector corrosion. Proper mechanical fit of the connector also prevents intermittent signals and keeps the injector grounded and sealed.
Seal Materials And Leak Resistance
Injector seals and O-rings prevent fuel leaks and maintain consistent inlet and outlet pressures. Over time, seals can harden, crack, or compress, which leads to external leaks or vacuum leaks at the intake.
Choose injectors with high-quality elastomers rated for fuel resistance and temperature. Good sealing reduces the risk of fuel odor, pressure loss, and injection timing issues. When installing, replace O-rings and inspect bores for damage to maintain long-term leak-free operation.
Durability And Maintenance Needs
Durability covers resistance to wear, clogging, and electrical failure. Some injectors include internal strainers, coatings, or filtration features that help resist deposits and prolong service life. Maintenance considerations include accessibility for cleaning and whether the injector can tolerate typical cleaning methods.
If you drive in areas with variable fuel quality, prioritize injectors with robust internal tolerances and materials. Also consider how easily the injector can be serviced or bench-tested, since scheduled inspection and cleaning can restore performance and delay replacement.
Compatibility With Tuning And Performance Upgrades
If you plan to modify the engine’s induction, fueling, or boost levels, injector capacity and response time become more critical. Higher flow injectors or multi-hole nozzles can support increased power, but they must remain compatible with the vehicle’s fuel pump and fuel rail pressures.
Upgrading injectors without adjusting engine management can create fueling imbalance. Factor in whether the injector allows predictable scaling of flow and whether the vehicle’s ECU or aftermarket controller can be calibrated to accommodate the change.
FAQ
How can I tell if a fuel injector is failing on my Chrysler 300?
Common signs include rough idle, hesitation under acceleration, or intermittent misfires. You may also notice decreased fuel economy or a fuel odor near the engine bay. Symptoms often vary by severity and can appear gradually.
Is it better to clean or replace a clogged injector?
Light to moderate clogging is often recoverable with professional ultrasonic cleaning and flow testing. Severe clogging, internal damage, or electrical faults usually require replacement. Cleaning can extend service life if the injector is mechanically sound.
Can I install aftermarket injectors without tuning the car?
It depends on the flow rate and electrical characteristics of the aftermarket injectors. Small, like-for-like replacements usually work without recalibration. Larger flow increases or different impedance types typically require fuel management adjustments to maintain proper air-fuel ratios.
What testing should be done before replacing an injector?
Basic checks include an electrical resistance test, an active injector pulse test while cranking, and a flow/volume test on a bench rig if available. Pressure drop or leak tests can identify leaking injectors. These steps help isolate mechanical from wiring or fuel delivery issues.
How often should injectors be inspected or cleaned?
Inspection intervals depend on driving conditions and fuel quality, but a periodic check every 30,000 to 60,000 miles is common for preventive maintenance. Cleaning frequency varies; do it when symptoms appear or during major service if deposits are suspected.
How We Chose the Best Chrysler 300 Fuel Injector
Our selection focused on injectors that provide correct fitment and consistent operation for the Chrysler 300 platform. We prioritized components with verified spray pattern uniformity to ensure even fuel distribution across cylinders, and we checked flow-rate consistency to avoid cylinder-to-cylinder fuel imbalance. Materials and seal quality were assessed to reduce the risk of leaks and long-term degradation. We also considered electrical connector compatibility and impedance to ensure proper operation with the vehicle's fuel injection system.We excluded units lacking clear flow-rate data, those with incompatible electrical or mechanical dimensions, and injectors without documented reliability feedback. Final picks balance precise flow characteristics, durable seals, and reliable electrical performance to meet everyday driving and light performance needs.
Our full evaluation process is outlined in our review methodology.
Conclusion
Choosing the right injector for a Chrysler 300 means balancing spray quality, matched flow rates, and reliable sealing. Prioritize injectors that align with your engine’s flow needs and the vehicle’s electrical system to avoid drivability issues.If you plan performance changes, account for the fuel system and calibration needs. Regular inspection and timely cleaning can extend injector life and keep the engine running smoothly.
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