MOPAR 3874887 Big Block Distributor Rb

( Brand: Mopar ), ( Manufacturer Part Number: 3874887 ), ( Type: Distributor ), ( Material: Aluminum ), ( Vintage Part: Yes )

Review MOPAR Original Big Block Electronic Distributor Dodge Chrysler Rb fits 440

The Mopar 3874887 440 Big Block Distributor is a vital component for the ignition system in certain Dodge and Chrysler vehicles equipped with the 440 cubic inch Big Block engine. This distributor is manufactured by Mopar, the official parts brand of FCA US LLC, ensuring a perfect fit and reliable performance.

The housing of this distributor is constructed from high-quality materials, designed to withstand the rigors of high-performance applications. It features a durable black finish that not only looks great but also protects the distributor from the elements. The cap and rotor are made from conductive materials to ensure a strong spark for efficient combustion.

The distributor features a classic 4-bolt design, making it easy to install and service. It comes with a new vacuum advance unit, which helps to improve engine performance and efficiency by optimizing the fuel-air mixture during different engine speeds. This distributor also includes a new centrifugal advance unit, which provides additional advance at higher engine speeds to ensure smooth power delivery.

The Mopar 3874887 440 Big Block Distributor is designed to be a direct replacement for the original equipment distributor in your Dodge or Chrysler vehicle. It comes with all necessary hardware for installation, including new distributor gaskets and seals. This distributor is also compatible with most aftermarket ignition systems, making it a great choice for those looking to upgrade their ignition system for even better performance.

In summary, the Mopar 3874887 440 Big Block Distributor is a high-quality, reliable replacement for the original distributor in your Dodge or Chrysler vehicle equipped with the 440 Big Block engine. It is constructed from durable materials, features advanced ignition technology, and comes with all necessary hardware for installation. Trust Mopar to provide you with the best in OE-quality parts for your classic or muscle car.

The Mopar 3874887 440 Big Block distributor is a crucial component in the ignition system of Dodge and Chrysler vehicles equipped with the 440 cubic inch big block engine. Here are some potential pros and cons of buying this distributor.

1. OEM Part: This distributor is a factory original equipment part manufactured by Mopar, which ensures a perfect fit and compatibility with your vehicle.

2. Improved Performance: A worn-out or faulty distributor can negatively impact engine performance. Replacing it with a new one can help restore optimal ignition system performance, leading to smoother engine operation and improved fuel efficiency.

3. Enhanced Reliability: The new distributor comes with new seals and O-rings, which can help prevent leaks and improve the overall reliability of the ignition system.

4. Easy Installation: The distributor is a relatively simple component to install, making it an accessible DIY project for those with basic mechanical skills.

1. Cost: Replacing a distributor with an OEM part like the Mopar 3874887 can be more expensive compared to aftermarket alternatives.

2. Potential for Misalignment: When installing the distributor, it's essential to ensure proper alignment to ensure optimal engine performance. Misalignment can lead to engine misfires and other issues.

3. Limited Longevity: While a new distributor should last for a long time, the part does wear out eventually. Regular maintenance and timely replacement are crucial to maintain the overall health of the ignition system.

The Mopar 3874887 440 Big Block distributor is a high-quality OEM part that can help restore optimal performance and reliability to the ignition system of your Dodge or Chrysler vehicle. While it may come with a higher cost compared to aftermarket alternatives, the benefits of a perfect fit, improved performance, and enhanced reliability make it a worthwhile investment for those looking to keep their classic muscle cars in top shape.

If you're experiencing issues with your ignition system or looking to prevent potential problems, consider investing in a new Mopar 3874887 440 Big Block distributor. While the cost may be higher than aftermarket alternatives, the peace of mind and performance benefits it provides are well worth the investment. Ensure proper installation and alignment to ensure optimal engine performance and longevity.

Details:

Original 440 Big Block Mopar Electronic Distributor 3874887 Dodge Chrysler BB RB CORE, not working, spins freely.

part #: 3874887 prices

• $84.95-$183.49

specifications disripa:

• for models: 440
• for makes: Dodge, Chrysler, Mopar
• brand: Mopar
• mpn: 3874887
• type: Distributor
• material: Aluminum
• vintage part: Yes

payments disripa:

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

shipping disripa:

• cost: $19.99
• class: Standard
• transit: 3-8 Days
• service: USPS Ground Advantage
• type: Fixed
• carrier: USPS

seller disripa:

• city: Zumbrota, Minnesota
• rating: 100.0%
• # reviews: 23714

returns disripa:

• policy: No Returns

general disripa:

• Car Truck Parts Accessories > Ignition Systems Components > Distributors
• condition: Used

offer disripa:

• sold: 0
• availability: In Stock
• started: February 4, 2026
• quantity: 1
• options: Ship-to-home

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