MOPAR 04891422AC Nos Leak Detection Pump

( Manufacturer Part Number: 04891422AC ), ( Part Type: Leak Pump ), ( Country Of Origin: United States )

Review MOPAR Nos Oem 04891422 Leak Detection Pump fits DAKOTA DURANGO 1998–2003

The **Mopar 04891422AC NOS (New Old Stock) Leak Detection Pump (Part Number 04891422)** is a meticulously preserved, high-performance component designed exclusively for the **1998 2003 Dodge Dakota and Dodge Durango** vehicles equipped with the **3.9L V6 engine**. This **original equipment manufacturer (OEM) replacement part** ensures seamless integration with the vehicle s fuel system, maintaining factory specifications for optimal performance and reliability. The leak detection pump is a critical component of the **fuel injection system**, responsible for monitoring fuel line integrity by detecting leaks in the fuel rail or delivery lines. Constructed from durable materials, this pump operates with precision, providing accurate leak detection signals to the vehicle s onboard computer, which in turn triggers the **Check Engine Light** if an issue is detected. Ideal for restoration projects, classic vehicle enthusiasts, or those seeking a genuine replacement for a failing OEM unit, this NOS pump retains its original functionality while offering the added benefit of being sourced from a trusted aftermarket supplier. Whether restoring a high-mileage Dakota or Durango to its former glory or replacing a worn-out component in a well-maintained vehicle, this **Mopar part** delivers the authenticity and dependability expected from Chrysler s legacy components. Its compatibility with the **EFI (Electronic Fuel Injection) system** ensures proper operation, contributing to efficient fuel delivery and engine performance. For those prioritizing quality and authenticity in their vehicle s maintenance, this **leak detection pump** stands as a reliable choice, bridging the gap between original equipment and modern aftermarket solutions.

### **Pros and Cons of buying a Mopar 04891422AC NOS Leak Detection Pump (98-03 Dakota/Durango)**

1. **Original Equipment Quality (OEM)** This part is designed and manufactured to match the specifications of the factory leak detection pump used in 1998 2003 Dodge Dakota and Durango models. It ensures proper fitment and performance without compromising on quality.

2. **Direct Replacement** The part number (04891422AC) is a **New Old Stock (NOS)** unit, meaning it is brand new but sourced from inventory that was previously unused. This eliminates concerns about wear or damage from previous installations.

3. **Reliability** Mopar is a trusted brand under Chrysler/Dodge, known for producing durable and dependable automotive parts. The leak detection pump is a critical component for the fuel system, and a high-quality replacement reduces the risk of leaks or malfunctions.

4. **Compatibility** This pump is specifically engineered for the **1998 2003 Dakota and Durango**, ensuring it integrates seamlessly with the vehicle s fuel injection system. No modifications or additional adapters are typically required.

5. **Warranty Coverage** Mopar parts often come with manufacturer warranties, providing peace of mind in case of defects. This can be particularly useful if the pump fails prematurely due to a flaw in manufacturing.

6. **Prevents Fuel System Issues** A faulty leak detection pump can cause false fuel system warnings, reduced engine performance, or even fuel leaks. Replacing it with a NOS unit helps maintain the integrity of the fuel system and avoids potential long-term damage.

7. **Ease of Installation** Since it is a direct replacement, installation is straightforward for most mechanics or even experienced DIYers. The pump is typically located near the fuel rail or fuel injector harness, and the process involves disconnecting wiring, removing the old pump, and securing the new one.

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1. **Cost** NOS parts are generally more expensive than aftermarket alternatives. While they offer reliability, the price may be a deterrent for budget-conscious buyers, especially if the pump is the only failing component.

2. **Limited Availability** Since this is a specific NOS part, it may not be as widely stocked as generic aftermarket replacements. Purchasing it may require ordering from specialty suppliers, which could involve shipping delays.

3. **Potential Overkill for Minor Issues** If the leak detection pump is failing due to a minor electrical issue (e.g., corroded wiring or a faulty sensor elsewhere in the system), replacing just the pump may not be the most cost-effective solution. A diagnostic check might reveal that other components (e.g., fuel injectors, fuel rail, or wiring harness) are also compromised.

4. **No Significant Performance Gain** Unlike performance parts, this is a functional replacement, not an upgrade. The primary benefit is restoring proper fuel system operation, not enhancing engine power or efficiency.

5. **Installation Complexity for Novices** While the installation is manageable, it requires familiarity with fuel system components and basic electrical connections. Improper handling could lead to fuel spills or damage to the pump.

6. **Resale Value Impact** If the vehicle is being sold, replacing a failing pump with a NOS unit may not significantly boost its resale value, as buyers typically prioritize mechanical reliability over the specific brand of replacement parts.

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The **Mopar 04891422AC NOS Leak Detection Pump** is an excellent choice for owners of **1998 2003 Dakota or Durango** who prioritize **reliability, OEM quality, and long-term performance**. Its direct replacement nature ensures compatibility and minimizes the risk of fuel system failures. However, the higher cost and potential overkill for minor issues mean it may not be the best option for everyone.

For those who have already confirmed the pump is the root cause of their fuel system issues (via diagnostic trouble codes like **P0171, P0174, or P0190**), this NOS part is a **strong recommendation**. If the vehicle is part of a larger repair project or if budget constraints are a concern, comparing it to **aftermarket alternatives** (e.g., Delphi, Bosch, or other OEM-equivalent brands) may be worthwhile.

- You have confirmed the pump is faulty via diagnostic testing.

- You value OEM quality and long-term reliability.

- You are comfortable with the installation process or have access to a mechanic.

- The vehicle s fuel system is otherwise in good condition.

- You are on a tight budget and can find a high-quality aftermarket equivalent.

- Other components in the fuel system (e.g., injectors, wiring) are also failing and need replacement.

- You are unsure whether the pump is the sole issue, and a full diagnostic check is pending.

In most cases where the pump is confirmed as the problem, the **Mopar NOS part is the safest and most reliable choice**.

Details:

NOS OEM Mopar # 04891422 Leak Detection Pump 98-03 DAKOTA DURANGO.

part #: 04891422ac prices

• $75.99-$95.00

specifications emissyste:

• for models: Dakota, Durango
• for makes: Mopar
• for years: 1998-2003
• mpn: 04891422ac
• part type: Leak Pump
• country of origin: United States

shipping emissyste:

• transit: 3-7 Days
• service: USPS Ground Advantage
• carrier: USPS
• cost: $0.00
• class: Standard
• type: Fixed

payments emissyste:

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

general emissyste:

• condition: New other see details
• Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts

returns emissyste:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

seller emissyste:

• city: Jersey Shore, Pennsylvania
• rating: 99.9%
• # reviews: 2115

offer emissyste:

• best offers: True
• availability: In Stock
• started: April 8, 2026
• quantity: 1
• sold: 0
• options: Ship-to-home

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