1978 GMC P15 Fuel Tanks

Keep Your 1978 GMC P15 in Top Shape with Quality Fuel Tanks

Whether you’re repairing or upgrading your Fuel Tank, using high-quality parts is key to keeping your 1978 GMC P15 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Fuel Tank Cleaning Kits, Fuel Tank Selector Valve Connectors, and Fuel Tank Selector Valves. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Explore Related Parts

While you’re upgrading or replacing your Fuel Tank, don’t forget to check out other key components like Fuel Pumps and Gas Caps. At Advance Auto Parts, we’re here to help you keep your 1978 GMC P15 in peak condition, inside and out.

Essential 1978 GMC P15 Fuel Tanks

Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Fuel Tank Cleaning Kit

from

$12.49
When replacing a fuel pump or module, it’s extremely important to clean the tank. Existing dirt, debris, and contamination stuck in the fuel tank can clog the brand-new strainer. Delphi’s Fuel Tank Cleaning Kit (FC01) and Tool (FC02) can help clean your fuel tank in less than five minutes. The FC01 includes a low-suds solution, cloth, and gloves that works together with the FC02 to help clean those hard to reach places without having to remove the fuel tank. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.

Product Features:
  • Helps avoid premature fuel pump failure
  • Lint free towel included
  • Low suds formulation
  • Removes harmful contaminants from the fuel tank
See More

Carquest Premium – Multi-Use Connector (Part No.FSA1013)

Multi-Use Connector

from

$31.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:
  • Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
See More

GM Genuine Parts – Fuel Tank Selector Valve (Part No.U7000)

Fuel Tank Selector Valve

from

$108.99
GM Genuine Parts Fuel Tank Selector Valves are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
See More

GM Genuine Parts – Fuel Tank Selector Valve (Part No.U7001)

Fuel Tank Selector Valve

from

$152.99
GM Genuine Parts Fuel Tank Selector Valves are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
See More

Carquest Premium – Fuel Tank Selector Valve: 6 Ports, with Toggle Switch, with Pigtail Connector (Part No.FSC1011)

Fuel Tank Selector Valve: 6 Ports, with Toggle Switch, with Pigtail Connector

from

$102.99
The electronic universal fuel tank selector is a two-way valve designed to direct fuel from a single tank when commanded, on a dual fuel tank vehicle application. With aid from an electrical switch located inside the vehicle cabin, the vehicle operator can select one of two fuel tanks to provide fuel to the vehicle’s engine. When electrically connected correctly, the selector valve will also provide the fuel level sender signal from each fuel tank onto the instrument cluster fuel gauge.

Product Features:
  • Product constructed to provide long-life operation
  • 6 Ports
  • Universal
  • Includes: Selector Valve, Toggle Switch and Pigtail Connector
See More

Carquest Premium – Fuel Tank Selector Valve (Part No.FSC1007)

Fuel Tank Selector Valve

from

$80.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More

Most Popular Fuel Tank Cleaning Kit for 1978 GMC P15s

Enhance your 1978 GMC P15 with this popular Fuel Tank Cleaning Kit we have in stock, for $12.49.

Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Fuel Tank Cleaning Kit

from

$12.49
When replacing a fuel pump or module, it’s extremely important to clean the tank. Existing dirt, debris, and contamination stuck in the fuel tank can clog the brand-new strainer. Delphi’s Fuel Tank Cleaning Kit (FC01) and Tool (FC02) can help clean your fuel tank in less than five minutes. The FC01 includes a low-suds solution, cloth, and gloves that works together with the FC02 to help clean those hard to reach places without having to remove the fuel tank. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.

Product Features:
  • Helps avoid premature fuel pump failure
  • Lint free towel included
  • Low suds formulation
  • Removes harmful contaminants from the fuel tank
See More

Best-Selling 1978 GMC P15 Fuel Tank Selector Valve Connector

Upgrade your P15 with our best-selling Fuel Tank Selector Valve Connector.

Carquest Premium – Multi-Use Connector (Part No.FSA1013)

Multi-Use Connector

from

$31.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:
  • Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
See More

Top-Quality Fuel Tank Selector Valves for 1978 GMC P15s

Choose a high-quality OEM or aftermarket Fuel Tank Selector Valve for GMC P15s and enjoy top-notch performance from $80.99.

GM Genuine Parts – Fuel Tank Selector Valve (Part No.U7000)

Fuel Tank Selector Valve

from

$108.99
GM Genuine Parts Fuel Tank Selector Valves are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
See More

GM Genuine Parts – Fuel Tank Selector Valve (Part No.U7001)

Fuel Tank Selector Valve

from

$152.99
GM Genuine Parts Fuel Tank Selector Valves are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
See More

Carquest Premium – Fuel Tank Selector Valve (Part No.FSC1007)

Fuel Tank Selector Valve

from

$80.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More

Carquest Premium – Fuel Tank Selector Valve: 6 Ports, with Toggle Switch, with Pigtail Connector (Part No.FSC1011)

Fuel Tank Selector Valve: 6 Ports, with Toggle Switch, with Pigtail Connector

from

$102.99
The electronic universal fuel tank selector is a two-way valve designed to direct fuel from a single tank when commanded, on a dual fuel tank vehicle application. With aid from an electrical switch located inside the vehicle cabin, the vehicle operator can select one of two fuel tanks to provide fuel to the vehicle’s engine. When electrically connected correctly, the selector valve will also provide the fuel level sender signal from each fuel tank onto the instrument cluster fuel gauge.

Product Features:
  • Product constructed to provide long-life operation
  • 6 Ports
  • Universal
  • Includes: Selector Valve, Toggle Switch and Pigtail Connector
See More

FAQs for 1978 GMC P15 Fuel Tanks

What are the best-selling Fuel Tanks for 1978 GMC P15s?

Out of 6 Fuel Tanks that fit 1978 GMC P15s, the following parts are the top sellers:

What’s the price range for 1978 GMC P15 Fuel Tanks?

The prices of Fuel Tanks for the 1978 GMC P15 range from $12.49 up to $152.99 for the most premium parts.

What is the average price of a Fuel Tank for a 1978 GMC P15?

The average price for Fuel Tanks for the 1978 GMC P15 is $81.74. Keep in mind the variety of part types within our Fuel Tank category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Fuel Tanks for other GMC P15 model years?

Yes, we carry Fuel Tanks for 2 model years of GMC P15s between 1975 and 1977. The following model years are the most popular for Fuel Tank purchases: 1977, 1976, and 1975.

What are the cheapest Fuel Tanks for my 1978 GMC P15?

The cheapest 1978 GMC P15 Fuel Tanks we carry are:

Does Advance Auto Parts sell Fuel Tanks for any other 1978 GMC models?

Yes. We stock Fuel Tanks for 12 other popular 1978 GMC models. Some of the most popular are 1978 Jimmy Fuel Tanks, 1978 Caballero Fuel Tanks, 1978 K25 Fuel Tanks, 1978 K15 Fuel Tanks, and 1978 G25 Fuel Tanks.

What are the top-rated Fuel Tanks that fit the 1978 GMC P15?

The one 1978 GMC P15 Fuel Tank we have in stock is the Fuel Tank Cleaning Kit. It costs $12.49.

What types of Fuel Tanks do you sell for my 1978 GMC P15?

As of 11/2/25, these are some of the most in-demand types of Fuel Tanks for a 1978 GMC P15:

Can I get help with 1978 GMC P15 Fuel Tank orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Fuel Tanks and more.

What is your return policy for GMC P15 Fuel Tanks?

Advance Auto Parts keeps returns simple. For new GMC P15 Fuel Tanks and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.