MOPAR 4240170 Nos Inline Fuel Filters 4185536

( Brand: Mopar ), ( Manufacturer Part Number: 4240170 ), ( Placement On Vehicle: Front ), ( Type: Grille ), ( Ipn: 4185536 ), ( Vintage Part: Yes )

Review MOPAR Nos Chrysler Inline Fuel Filters Package fits IMPERIAL EFI 1981–1983

The **Mopar 4240170 NOS (New Old Stock) Inline Fuel Filter** is a meticulously preserved, high-performance component designed exclusively for the **1981 1983 Chrysler Imperial models equipped with Electronic Fuel Injection (EFI) systems**. This filter is a direct-fit replacement, ensuring seamless integration with the vehicle s fuel delivery network, where it plays a critical role in maintaining optimal engine performance and longevity. Crafted from durable, high-quality materials, this filter is engineered to efficiently separate contaminants from the fuel stream, preventing clogged injectors, fuel line blockages, and potential damage to the EFI system. The inline design allows for continuous filtration as fuel travels from the tank to the engine, ensuring that only clean, unobstructed fuel reaches the injectors and combustion chamber. As a NOS part, this filter has been carefully stored in pristine condition, free from exposure to environmental degradation, ensuring that it retains its original specifications and reliability. Ideal for restoration projects, classic car enthusiasts, or those seeking to maintain the integrity of their Imperial s fuel system, this Mopar filter is a testament to Chrysler s engineering precision and Mopar s commitment to authenticity. Whether restoring a showroom-fresh Imperial or preserving the performance of a beloved classic, this filter guarantees a smooth, efficient fuel flow keeping the engine running strong and the ride as smooth as the day it left the factory.

**Pros and Cons of Buying a New-Old-Stock (NOS) 1981-1983 Chrysler Imperial EFI Inline Fuel Filter (Part Number: MOPAR 4240170)**

The primary advantage of purchasing a NOS fuel filter for your 1981-1983 Chrysler Imperial with Electronic Fuel Injection (EFI) is **authenticity and reliability**. NOS parts are original components that were never installed in a vehicle, meaning they have not been exposed to wear, contamination, or environmental damage. This ensures:

1. **Guaranteed Fit and Functionality** The filter is designed specifically for your model and year, eliminating concerns about compatibility issues that can arise with aftermarket or generic replacements. The EFI system relies on precise fuel delivery, and a genuine filter ensures optimal performance without compromising emissions or engine efficiency.

2. **High-Quality Materials** MOPAR NOS parts are manufactured to Chrysler s original specifications, using materials that meet or exceed the standards of the time. This reduces the risk of premature failure or leaks, which can be problematic with cheaper aftermarket alternatives.

3. **Preservation of Original Performance** Since the EFI system on your Imperial was engineered to work with this exact filter, using a NOS part helps maintain the vehicle s original performance characteristics, throttle response, and fuel economy. Aftermarket filters may not replicate the same flow rate or filtration efficiency, potentially leading to minor drivability issues.

4. **Long-Term Durability** Original parts are built to last the lifespan of the vehicle under normal conditions. While fuel filters are relatively simple components, using a NOS unit ensures that you re not introducing a weak link into the system that could fail sooner than expected.

5. **Ease of Installation** NOS parts are typically in pristine condition, making installation straightforward. There s no need to clean or repair the filter before use, as there might be with used or refurbished parts.

6. **Historical and Collectible Value** For enthusiasts who prioritize maintaining the vehicle in original condition, NOS parts are a key component of preserving the car s historical integrity. This is particularly important for show cars or vehicles intended for restoration.

7. **Reduced Risk of Counterfeit Parts** NOS parts come with manufacturer authenticity, reducing the chance of purchasing a knockoff that may not perform as advertised or could damage the EFI system.

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1. **Higher Cost** NOS parts are significantly more expensive than aftermarket or generic replacements. The premium price reflects their original condition, authenticity, and the cost of sourcing them from inventory. For budget-conscious buyers, this can be a major deterrent.

2. **Limited Availability** NOS parts are not mass-produced for modern vehicles, and their availability depends on the condition of the original stockpiles. Some parts may become difficult or impossible to find over time, especially as older models phase out of production. This can create uncertainty about long-term availability for future repairs.

3. **No Warranty (Typically)** NOS parts are sold as-is, with little to no warranty coverage. If the filter fails prematurely due to manufacturing defects (though rare with MOPAR), you would be responsible for the cost of replacement. Aftermarket parts often come with warranties, providing some recourse in case of failure.

4. **Storage and Handling Risks** NOS parts are stored in inventory for extended periods, which can sometimes lead to minor issues such as dust accumulation or slight wear from handling. While this is usually negligible for a fuel filter, it s worth noting that the part may not be completely pristine.

5. **Overkill for Some Owners** If your Imperial is primarily used for daily driving and not preserved as a show car or restoration project, the benefits of a NOS filter may not justify the cost. Aftermarket filters that meet or exceed OEM standards could be a more practical and economical choice.

6. **Potential for Overpaying** In some cases, sellers may inflate prices for NOS parts due to perceived demand or rarity. It s important to research fair market value and compare prices across multiple sources to ensure you re getting a reasonable deal.

7. **Environmental and Ethical Considerations** NOS parts are sourced from original stock, which may involve mining old inventory that could have been used for other vehicles. While this doesn t directly impact the filter s performance, some buyers may prefer supporting newer, sustainably produced aftermarket alternatives.

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Purchasing a NOS MOPAR 4240170 fuel filter for your 1981-1983 Chrysler Imperial EFI is a **strong choice if authenticity, reliability, and long-term performance** are your priorities. The filter s original design ensures compatibility with your vehicle s EFI system, helping to maintain optimal fuel delivery, engine efficiency, and drivability. For enthusiasts who value historical accuracy or plan to preserve the car in original condition, the investment is justified.

However, if **cost is a significant concern** or if the vehicle is not a primary focus of your collection, an aftermarket filter that meets or exceeds OEM specifications may be a more practical alternative. Aftermarket filters are often more affordable, may come with warranties, and can still provide reliable service without the premium price tag.

Ultimately, the decision depends on your **budget, priorities, and the vehicle s intended use**. If you re restoring or maintaining a show car, the NOS filter is the best choice. If you re looking for a balance between cost and performance for a daily driver, an aftermarket option could be sufficient.

- You are committed to using only original or high-quality OEM parts.

- The vehicle is a restoration project or a show car where authenticity matters.

- You are willing to pay the premium for guaranteed compatibility and longevity.

- You are operating on a tight budget and can find a high-quality filter that meets or exceeds OEM standards.

- The vehicle is primarily used for daily driving, and the benefits of a NOS filter do not outweigh the cost.

- You prefer having warranty coverage in case of premature failure.

In either case, ensure that the filter you choose is **compatible with your specific EFI system** and that it maintains the proper flow rate to avoid issues with fuel pressure or engine performance. Always follow the manufacturer s installation guidelines to ensure proper function.

Details:

NOS Mopar 1981 1983 Chrysler Imperial EFI INLINE FUEL FILTERS PACKAGE 4240170. Condition is For parts or not working. Shipped with USPS Ground Advantage.

part #: 4240170 prices

• $61.99-$289.89

specifications grilexte:

• for models: Efi, Imperial
• for makes: Chrysler, Mopar
• for years: 1981-1983
• brand: Mopar
• mpn: 4240170
• placement on vehicle: Front
• type: Grille
• ipn: 4185536
• vintage part: Yes

offer grilexte:

• started: May 24, 2026
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• sold: 0
• best offers: True

returns grilexte:

• policy: No Returns

shipping grilexte:

• service: USPS Ground Advantage, FedEx Ground / FedEx Home Delivery
• class: Standard
• type: Calculated
• carrier: USPS, FedEx
• transit: 5-11 Days
• cost: $16.55

seller grilexte:

• # reviews: 1224
• rating: 99.3%
• city: Staten Island, New York

general grilexte:

• Car Truck Parts Accessories > Exterior Parts Accessories > Grilles
• condition: For parts or not working

payments grilexte:

• wallet: Google-pay
• credit card: Mastercard
• other

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