1966 GMC K25/K2500 Pickup Fuel Tanks

Keep Your 1966 GMC K25/K2500 Pickup in Top Shape with a Quality Fuel Tank

When it comes to maintaining or upgrading your 1966 GMC K25/K2500 Pickup, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Fuel Tank for your K25/K2500 Pickup. We currently carry a top Fuel Tank in stock that is built to last. Whether you’re replacing a damaged Fuel Tank or looking to upgrade, our selection for the 1966 GMC K25/K2500 Pickup ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Essential 1966 GMC K25/K2500 Pickup Fuel Tanks

KAI – Fuel Sending Unit (Part No.FSU010191)

Fuel Sending Unit

from

$60.99
New Platinum Pro Fuel Sending Unit With 3/8 Line Without Vent Line For In-Cab Tank, For Engines With 4 Barrel Carb

Product Features:
  • Engines With 4 Barrel Carb
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

Spectra Premium – Fuel Tank Sending Unit (Part No.FG05C)

Fuel Tank Sending Unit

from

$91.99
Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel sending units meet or exceed the performance of the original equipment they replace.

Product Features:
  • Unit is designed to OE fit, form and function requirements accomplished by leveraging our OE fuel system design expertise
  • Precision tested fuel level sensors ensures vehicles fuel gage will provide an accurate reading at any fuel level
  • Includes strainers for smoother installation process and ensures a clean fuel system upon replacement
  • Engineered to stringent tolerances based on our Canadian engineers’ in-depth knowledge of the OE part it’s designed to replace
  • Manufactured with high quality material, ensuring the durability of this part to prevent costly repairs
See More

KAI – Fuel Sending Unit (Part No.FSU010024)

Fuel Sending Unit

from

$78.99
New Platinum Pro Fuel Sending Unit, 73-79 C/K Pu, With 3 Outlets, Rh Side Tank

Product Features:
  • 73-79 C/K Pickup, With 3 Outlets, Right Side Tank
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

KAI – Fuel Sending Unit (Part No.FSU010185)

Fuel Sending Unit

from

$55.99
New Platinum Pro Fuel Sending Unit Without Vent Line For In-Cab Tank

Product Features:
  • Without Vent Line, In Cab Tank
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

Dorman – Fuel Sending Unit without Pump (Part No.692-134)

Fuel Sending Unit without Pump

from

$135.99
This fuel tank sending unit is designed to match the fit and function of the original unit on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this fuel tank sending unit is designed to match the fit and function of the original unit on specified applications
  • Restores functionality – reliable replacement for an original part that has failed due to internal sensor failure
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Spectra Premium – Fuel Tank Sending Unit (Part No.FG05D)

Fuel Tank Sending Unit

from

$109.99
Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel sending units meet or exceed the performance of the original equipment they replace.

Product Features:
  • Unit is designed to OE fit, form and function requirements accomplished by leveraging our OE fuel system design expertise
  • Precision tested fuel level sensors ensures vehicles fuel gage will provide an accurate reading at any fuel level
  • Includes strainers for smoother installation process and ensures a clean fuel system upon replacement
  • Engineered to stringent tolerances based on our Canadian engineers’ in-depth knowledge of the OE part it’s designed to replace
  • Manufactured with high quality material, ensuring the durability of this part to prevent costly repairs
See More

Carquest Premium – Fuel Tank Sending Unit FG05BCQ: Includes Strainer and Wiring Harness (Part No.FG05BCQ)

Fuel Tank Sending Unit FG05BCQ: Includes Strainer and Wiring Harness

from

$89.99
Carquest Premium fuel tank sending units are built to meet or exceed Original Equipment (O.E.) specifications for fit, form and function. Carquest Premium fuel tank sending units are supplied with the wiring harness and gaskets or seals when required for the application. All sending units are precision-tested ensuring accurate readings at any fuel level. Carquest Premium fuel tank sending units are engineered with superior quality components to provide the longest life and are backed up by an industry-leading warranty.

Product Features:
  • Meets or exceeds OE specifications for fit, form and function
  • All sending units are 100% performance tested
  • Includes installation gaskets or seals where applicable
See More

Carquest Premium – Fuel Tank Sending Unit FG05JCQ: Includes Wiring Harness (Part No.FG05JCQ)

Fuel Tank Sending Unit FG05JCQ: Includes Wiring Harness

from

$79.99
Carquest Premium fuel tank sending units are built to meet or exceed Original Equipment (O.E.) specifications for fit, form and function. Carquest Premium fuel tank sending units are supplied with the wiring harness and gaskets or seals when required for the application. All sending units are precision-tested ensuring accurate readings at any fuel level. Carquest Premium fuel tank sending units are engineered with superior quality components to provide the longest life and are backed up by an industry-leading warranty.

Product Features:
  • Meets or exceeds OE specifications for fit, form and function
  • All sending units are 100% performance tested
  • Includes installation gaskets or seals where applicable
See More

Spectra Premium – Fuel Tank Sending Unit (Part No.FG05B)

Fuel Tank Sending Unit

from

$114.99
Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel sending units meet or exceed the performance of the original equipment they replace.

Product Features:
  • Unit is designed to OE fit, form and function requirements accomplished by leveraging our OE fuel system design expertise
  • Precision tested fuel level sensors ensures vehicles fuel gage will provide an accurate reading at any fuel level
  • Includes strainers for smoother installation process and ensures a clean fuel system upon replacement
  • Engineered to stringent tolerances based on our Canadian engineers’ in-depth knowledge of the OE part it’s designed to replace
  • Manufactured with high quality material, ensuring the durability of this part to prevent costly repairs
See More

Carquest Premium – Fuel Tank Sending Unit FG05DCQ: Includes Wiring Harness (Part No.FG05DCQ)

Fuel Tank Sending Unit FG05DCQ: Includes Wiring Harness

from

$93.99
Carquest Premium fuel tank sending units are built to meet or exceed Original Equipment (O.E.) specifications for fit, form and function. Carquest Premium fuel tank sending units are supplied with the wiring harness and gaskets or seals when required for the application. All sending units are precision-tested ensuring accurate readings at any fuel level. Carquest Premium fuel tank sending units are engineered with superior quality components to provide the longest life and are backed up by an industry-leading warranty.

Product Features:
  • Meets or exceeds OE specifications for fit, form and function
  • All sending units are 100% performance tested
  • Includes installation gaskets or seals where applicable
See More

KAI – Fuel Sending Unit (Part No.FSU010023)

Fuel Sending Unit

from

$73.99
New Platinum Pro Fuel Sending Unit, 73-79 C/K Pu, With 2 Outlets, Rh Side Tank

Product Features:
  • 73-79 C/K Pickup, With 2 Outlets, Right Side Tank
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

Carquest Premium – Fuel Tank Sending Unit FG05CCQ: Includes Wiring Harness (Part No.FG05CCQ)

Fuel Tank Sending Unit FG05CCQ: Includes Wiring Harness

from

$69.99
Carquest Premium fuel tank sending units are built to meet or exceed Original Equipment (O.E.) specifications for fit, form and function. Carquest Premium fuel tank sending units are supplied with the wiring harness and gaskets or seals when required for the application. All sending units are precision-tested ensuring accurate readings at any fuel level. Carquest Premium fuel tank sending units are engineered with superior quality components to provide the longest life and are backed up by an industry-leading warranty.

Product Features:
  • Meets or exceeds OE specifications for fit, form and function
  • All sending units are 100% performance tested
  • Includes installation gaskets or seals where applicable
See More

Dorman – Fuel Sending Unit without Pump (Part No.692-073)

Fuel Sending Unit without Pump

from

$105.99
This fuel tank sending unit is designed to match the fit and function of the original unit on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this fuel tank sending unit is designed to match the fit and function of the original unit on specified applications
  • Restores functionality – reliable replacement for an original part that has failed due to internal sensor failure
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

KAI – Fuel Sending Unit (Part No.FSU010190)

Fuel Sending Unit

from

$55.99
New Platinum Pro Fuel Sending Unit, With 5/16 Line, With Lock Ring/Seal/O-Ring And Strainer

Product Features:
  • 5/16 Line Lock Ring/Seal/O-Ring And Strainer
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

KAI – Fuel Sending Unit (Part No.FSU010186)

Fuel Sending Unit

from

$59.99
New Platinum Pro Fuel Sending Unit With Vent Line For In-Cab Tank

Product Features:
  • With Vent Line, In Cab Tank
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

KAI – Fuel Sending Unit (Part No.FSU010025)

Fuel Sending Unit

from

$73.99
New Platinum Pro Fuel Sending Unit, 73-79 C/K Pu, With 3 Outlets, Lh Side Tank

Product Features:
  • 73-79 C/K Pickup, With 3 Outlets, Left Side Tank
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

Most Popular Fuel Tank Sending Unit for 1966 GMC K25/K2500 Pickups

Enhance your 1966 GMC K25/K2500 Pickup with this popular Fuel Tank Sending Unit we have in stock, for $135.99.

Dorman – Fuel Sending Unit without Pump (Part No.692-134)

Fuel Sending Unit without Pump

from

$135.99
This fuel tank sending unit is designed to match the fit and function of the original unit on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this fuel tank sending unit is designed to match the fit and function of the original unit on specified applications
  • Restores functionality – reliable replacement for an original part that has failed due to internal sensor failure
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

FAQs for 1966 GMC K25/K2500 Pickup Fuel Tanks

What’s the price range for 1966 GMC K25/K2500 Pickup Fuel Tanks?

We currently have just one Fuel Tanks for the 1966 GMC K25/K2500 Pickup in stock: Fuel Sending Unit without Pump and it costs $135.99.

Does Advance Auto Parts sell Fuel Tanks for other GMC K25/K2500 Pickup model years?

Yes, we carry Fuel Tanks for 7 model years of GMC K25/K2500 Pickups between 1967 and 1974. The following model years are the most popular for Fuel Tank purchases: 1974, 1973, 1972, 1971, 1970, 1969, 1968, and 1967.

Does Advance Auto Parts sell Fuel Tanks for any other 1966 GMC models?

Yes. We stock Fuel Tanks for 20 other popular 1966 GMC models. Some of the most popular are 1966 K15/K1500 Pickup Fuel Tanks, 1966 Suburban Fuel Tanks, 1966 G1000 Series Fuel Tanks, 1966 PB1000 Series Fuel Tanks, and 1966 I1500 Fuel Tanks.

What types of Fuel Tanks do you sell for my 1966 GMC K25/K2500 Pickup?

We currently have just 1 Fuel Tank in stock for a 1966 GMC K25/K2500 Pickup, and as of 11/2/25, it is a Fuel Tank Sending Unit.

Can I get help with 1966 GMC K25/K2500 Pickup 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 K25/K2500 Pickup Fuel Tanks?

Advance Auto Parts keeps returns simple. For new GMC K25/K2500 Pickup Fuel Tanks and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.