GMC 1103420 Distributor 3L9

( Manufacturer Part Number: 1103420 ), ( Type: Distributor ), ( Vintage Part: Yes )

Review GMC Series Distributor Date 3l9 fits SUBURBAN 1979–1986

The GMC 1103420 distributor is a crucial component of the ignition system in 1979-1986 Suburban vehicles powered by the 3.0L inline-six engine. This distributor plays a vital role in delivering spark to each cylinder at the correct time for efficient combustion.

The housing of this distributor is made of high-quality materials, ensuring durability and resistance to wear and tear. The cap on top of the distributor features seven copper alloy contacts, each corresponding to a spark plug. These contacts ensure reliable and consistent spark transmission to the engine.

The rotor inside the distributor is designed to rotate between the contacts and make contact with the appropriate one based on the engine's position. The rotor has a unique design with a white marking on it, which aligns with a notch on the distributor drive gear to ensure proper timing.

The distributor also includes a vacuum advance mechanism, which allows the distributor to advance the timing under light engine load conditions to improve engine performance and fuel efficiency. This mechanism is controlled by a vacuum hose connected to the intake manifold.

The GMC 1103420 distributor comes fully rebuilt and tested to meet or exceed original equipment specifications. It includes new vacuum advance diaphragm, new rotor, new points, new condenser, new cap gasket, and new rotor shaft seal. The distributor also comes with new wires and terminals for a hassle-free installation.

In summary, the GMC 1103420 distributor is a top-quality replacement part for the ignition system of 1979-1986 Suburban vehicles with a 3.0L inline-six engine. It is designed to ensure reliable and consistent spark delivery to the engine, improve engine performance, and increase fuel efficiency. With its high-quality materials, durable construction, and fully rebuilt and tested components, this distributor is an excellent choice for Suburban owners looking for a reliable and long-lasting ignition system component.

The GMC Suburban distributor part number 3L9, which is applicable to Suburban models produced between 1979 and 1986, is an essential component of the vehicle's ignition system. The distributor's primary function is to transmit the electrical spark from the ignition coil to the spark plugs at the correct timing.

1. Improved performance: A new distributor ensures reliable ignition system operation, leading to improved engine performance.

2. Reduced misfires: A faulty distributor can cause misfires, which can negatively impact fuel efficiency and engine lifespan. A new distributor can help reduce or eliminate these issues.

3. Smoother idle: A malfunctioning distributor can cause a rough idle, which can be uncomfortable and potentially dangerous. A new distributor can provide a smoother and more consistent idle.

4. Improved fuel economy: A well-functioning ignition system, as provided by a new distributor, can help improve fuel economy by ensuring that the engine is burning fuel efficiently.

1. Cost: A new distributor can be an expensive repair, especially when compared to the cost of labor and other parts.

2. Installation time: Replacing a distributor can be a time-consuming process, as it involves removing various components to access the distributor.

3. Availability: Depending on the availability of the specific distributor part number, it may take some time to source and receive the new part.

In conclusion, while the replacement of a GMC Suburban distributor 3L9 can be a costly and time-consuming repair, it can also provide significant benefits in terms of improved engine performance, reduced misfires, smoother idle, and potentially increased fuel economy. If the vehicle's ignition system is causing issues, it may be worth considering a new distributor as a potential solution.

Recommendation: If you are experiencing issues with your Suburban's ignition system, it is recommended that you consult with a qualified mechanic to diagnose the problem and determine if a new distributor is the best course of action. They can assess the vehicle's specific needs and provide you with an accurate estimate of the cost and time involved in the repair.

Details:

For best results new cap and rotor needed. It was from a 1977 truck with tachometer. Removed in working order years ago and stored. Wiring harness has cut ends.

part #: 1103420 prices

• $15.00-$123.85

specifications disripa:

• for models: Suburban
• for makes: Gmc
• for years: 1979-1986
• mpn: 1103420
• type: Distributor
• vintage part: Yes

payments disripa:

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

offer disripa:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• started: April 1, 2025
• sold: 0

shipping disripa:

• transit: 3-8 Days
• cost: $16.65
• carrier: USPS
• service: USPS Priority Mail Medium Flat Rate Box, USPS Ground Advantage
• class: Expedited, Standard
• type: Calculated

general disripa:

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

returns disripa:

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

seller disripa:

• city: Ketchikan, Alaska
• # reviews: 5578
• rating: 99.6%

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