MOPAR 4091821 Distributor Big Block 383 LOT15

( Manufacturer Part Number: 4091821 ), ( Type: Distributor ), ( Vintage Part: Yes ), ( Finish: Unfinished ), ( Placement On Vehicle: Front ), ( Country Of Origin: United States )

Review MOPAR Original Electronic Distributor Big Block 383 Pn# Lot15 fits 400

Mopar 4091821 Distributor for Big Block 383/400 Engines (Lot 15)

The Mopar 4091821 Distributor is a high-quality automotive component meticulously engineered for big block 383 and 400 engines. This distributor, part of the Mopar's extensive range of automotive products, is a testament to their commitment to delivering performance and reliability.

Crafted with precision, the Mopar 4091821 Distributor boasts a robust design that ensures it can withstand the demands of your engine. Its durable construction, combined with a precise timing mechanism, guarantees smooth and efficient operation of your big block 383 or 400 engine.

The distributor comes with a robust vacuum advance, ensuring optimal fuel-air mixture for a powerful and responsive engine performance. It also features a high-quality rotor and cap, ensuring reliable spark delivery to your engine's cylinders.

This Mopar distributor (Lot 15) is a direct fit for many big block Chrysler, Dodge, and Plymouth vehicles, making it a perfect replacement or upgrade for your classic or muscle car. The distributor comes pre-tested for quality assurance, ensuring it's ready to install and deliver peak performance right out of the box.

Invest in the Mopar 4091821 Distributor and experience the difference in performance, reliability, and peace of mind that comes with a genuine Mopar part. Upgrade your big block 383 or 400 engine today with this high-quality Mopar distributor.

1. High Quality: This distributor is designed by Mopar, a well-known brand in automotive parts, ensuring reliable performance and durability.

2. Compatibility: It is specifically designed for Big Block 383/400 engines, reducing the risk of compatibility issues.

3. Lot Number: The lot number (15) indicates that this is a more recent production, which could mean improved quality control.

4. Availability of Spare Parts: As it is a popular part, finding replacement parts if needed shouldn't be difficult.

1. Price: Compared to some aftermarket options, this distributor may be more expensive.

2. Limited Adjustability: Some users may prefer distributors with adjustable timing advance, but this one does not appear to have that feature.

3. Specific to Engine Type: As it is designed for Big Block 383/400 engines, it may not be suitable for other engine types.

The Mopar 4091821 Distributor is a high-quality part designed specifically for Big Block 383/400 engines. Its reliability and compatibility make it a good choice for those who prioritize these factors. However, its price and lack of adjustability may be a concern for some. If the price is within your budget and you don't need adjustable timing, this distributor could be a good choice. If you're looking to save money or need adjustable timing, you might want to consider aftermarket alternatives.

Details:

This will fit B Big Block 383 and 400 with electronic ignition. Untested, will need cleaned up and gone through before installed. Original Mopar Electronic Distributor Part Number 4091821. Please look at all my photos, as they are part of.

Date Code 43th day of 1977.

part #: 4091821 prices

• $46.74-$51.14

specifications grilexte:

• for models: 400
• for makes: Mopar
• mpn: 4091821
• type: Distributor
• vintage part: Yes
• finish: Unfinished
• placement on vehicle: Front
• country of origin: United States

seller grilexte:

• city: Uniontown, Ohio
• # reviews: 2693
• rating: 99.4%

offer grilexte:

• availability: In Stock
• quantity: 1
• sold: 0
• started: November 22, 2025
• options: Ship-to-home
• best offers: True

shipping grilexte:

• type: Fixed
• class: Standard
• cost: $14.95
• transit: 7-13 Days
• service: USPS Ground Advantage
• carrier: USPS

returns grilexte:

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

general grilexte:

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

payments grilexte:

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

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