1966 GMC LI3500 Engine Cooling Parts
Keep Your 1966 GMC LI3500 in Top Shape with Quality Engine Cooling Parts
Whether you’re repairing or upgrading your Engine Cooling Part, using high-quality parts is key to keeping your 1966 GMC LI3500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Radiator Fan Motors, Thermostat Housing Gaskets, and Radiator Caps. 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.
Top-Rated Engine Cooling Parts from Trusted Brands
Looking for a reliable Engine Cooling Part? We’ve got you covered with options from brands you know and trust like FELPRO and Imperial. For example, FELPRO Engine Cooling Parts start at just $2.99 with an average 4.6 star rating. Imperial offer similar pricing and quality, backed by strong customer feedback. With over 262 reviews and a solid 4 star average, you can shop with confidence knowing other GMC LI3500 owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1966 GMC LI3500 Engine Cooling Part at Advance Auto Parts is around $42.78, with a range that starts at $2.99 and goes up to $108.99. With 14 options in stock from 5 trusted brands, finding the right fit is easy. Popular picks like Electric Fan, 14" Diameter, Thermostatic Fan Control – Preset, and Engine Coolant Temperature Sensor start at just $35.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Engine Cooling Part, don’t forget to check out other key components like Air Conditioning Parts and Blower Motor and Related Products. At Advance Auto Parts, we’re here to help you keep your 1966 GMC LI3500 in peak condition, inside and out.
Find Your Specific 1966 GMC LI3500 Engine Cooling Parts
Looking for the perfect Engine Cooling Part for your 1966 GMC LI3500? You’re in the right place. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Cooling Parts, ensuring durability and a precise fit for your GMC LI3500. Whether you’re driving a 1966 model or another popular model year like
1967, we’ve got you covered. Purchasing Engine Cooling Parts from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle.
Essential 1966 GMC LI3500 Engine Cooling Parts
Mr. Gasket – Thermocap Radiator Cap (Part No.2476BK)
from
$55.99
The fastest, easiest way to know exactly when it’s safe to open your radiator cap. ThermoCap, with its built-in calibrated thermometer, indicates the coolant temperature.
Product Features:
See More
Product Features:
- Indicates coolant temperature
- Helps prevent coolant injuries
- Fahrenheit and centigrade readings
- Color-coded temperature ranges
- Integrated coolant reclamation valve
- Improves under-hood appearance
- Chromed crown with a colored trim ring
Mr. Gasket – Thermocap Radiator Cap (Part No.2471S)
from
$51.99
Knowing your coolant temperature can help to prevent burn injuries. Thermocap Cap, with its built-in calibrated thermometer, indicates the coolant temperature. This is useful information prior to cap removal. Never attempt to remove Thermocap Cap when the coolant temperature is very hot. The escaping hot coolant and steam may burn you. Reclamation valve works great with your coolant recovery system. Your radiator can reclaim coolant from your overflow bottle. Wide 30 degree to 270 degree F temperature range. Calibrated in centigrade and Fahrenheit. Color-coded temperature ranges.
Product Features:
See More
Product Features:
- Indicates Coolant Temperature
- Helps to Prevent Injuries from coolant or steam burns
- Integrated Coolant Reclamation Valve
- Improves Underhood Appearance
- Fahrenheit and centigrade readings
- Various valve pressures available
Felpro – Engine Coolant Outlet Gasket (Part No.35062)
from
$4.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
See More
Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design
- Manufactured for the sealing repair environment
- Validated for fit, form, and function
- Quality that you can trust
Imperial – Electric Fan, 14" Diameter (Part No.226114)
from
$99.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Motors built and tested to quality specifications
- 14 in. universal fit reversible fan
- 1250 CFM
- UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.
- Motors built and tested to quality specifications
- 14 in. universal fit reversible fan
- 1250 CFM
- UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.
Imperial – Electric Fan, 12" Diameter (Part No.226112)
from
$108.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Rapid-Cool Thin-Line electric fans
- 12″ Diameter
- 800 CFM
- Use as a pusher or puller fan
- Motors built and tested to quality specifications
- 12 in. universal fit reversible fan
- 800 CFM
- UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.
ACDelco – Engine Coolant Temperature Sensor (Part No.G1852)
from
$35.99
ACDelco Professional Engine Coolant Temperature Sender is a high quality aftermarket replacement component for one or more of the following vehicle systems: ignition, and/or engine fuel management. This premium aftermarket sender is manufactured to meet or exceed your expectations for fit, form, and function.
Product Features:
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Product Features:
- Professional, premium aftermarket replacement
- Provides the performance and dependability you expect from ACDelco
- Manufactured to meet expectations for fit, form, and function
Mr. Gasket – Water Outlet Gasket (Part No.740)
from
$6.99
Manufactured from a blend of nitrile rubber and fiber for excellent sealing and durability. Precision die cut for application.
Product Features:
See More
Product Features:
- This gasket is bulk packaged
- Made from Cellulose/Nitrile Composition
- Provides Excellent Sealing and Durability
- These Gaskets are Die Cut for a Precision Fit
- Fits Small Block Chevy V8 Engines 1955-’90
- Fits Big Block Chevy V8 Engines 1965-’90
- Fits Small Block Chrysler 318/360 1979-’92
- Fits Small Block Chysler 3.9L/5.2L/5.9L Magnum 1992-’03
Victor Reinz – Engine Coolant Outlet Gasket (Part No.71-13524-00)
from
$2.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
Product Features:
See More
Product Features:
- Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Felpro – WATER OUTLET GASKET (Part No.35562 T)
from
$20.99
Product Features:
See More
- Problem-solving gaskets featuring advanced sealing technologies designed specifically for the repair environment
- PermaDryPlus water outlet gaskets utilize rigid carrier construction and silicone sealing beads to ensure a long-lasting seal, including those with warped housing flanges
- Validated for fit, form, and function
- Quality that you can trust
- Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
Felpro – Engine Coolant Thermostat Housing Gasket (Part No.13224)
from
$2.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
See More
Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Engineered and manufactured specifically for the repair environment
- Unsurpassed quality you can trust
- Validated for fit, form, and function
Imperial – Adjustable Thermostatic Fan Control (Part No.226204)
from
$65.99
Adjustable Thermostatic Fan Control. 160-210°F; push-in probe. Controls the operating temperature of Imperial electric fans. Operates up to 2 fans.
Product Features:
See More
Product Features:
- Adjustable thermostatic fan control
- 160-210°F push-in probe
- For use with Imperial electric fans
- Probe installs into radiator fins
Imperial – Adjustable Thermostatic Fan Control (Part No.226203)
from
$23.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Economy adjustable thermostatic fan control
- Economy Model; 32-248 Deg. F
- For use with Imperial electric fans
- Probe installs into radiator fins
- Contains gaskets, O-rings, or seals to properly replace the product
- Brass construction for accurate temperature sensing
- Zinc coated terminal to resist corrosion
- Vehicle specific applications
Imperial – Thermostatic Fan Control – Preset (Part No.226206)
from
$46.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Preset thermostatic fan control
- 185 Deg. F preset
- For use with Imperial electric fans
- Probe installs into radiator fins
- Contains gaskets, O-rings, or seals to properly replace the product
- Brass construction for accurate temperature sensing
- Zinc coated terminal to resist corrosion
- Vehicle specific applications
Imperial – Thermostatic Fan Control – Adjustable (Part No.226208)
from
$69.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Adjustable thermostatic fan control
- 160 Deg. F – 210 Deg. F thread-in probe
- For use with Imperial electric fans
- Thread-in probe for installation in water jacket or radiator
- Contains gaskets, O-rings, or seals to properly replace the product
- Brass construction for accurate temperature sensing
- Zinc coated terminal to resist corrosion
- Vehicle specific applications
Popular 1966 GMC LI3500 Engine Cooling Parts Categories
Most Popular Radiator Fan Motors for 1966 GMC LI3500s
Enhance your 1966 GMC LI3500 with one of the 2 Radiator Fan Motors we have in stock, starting at just $99.99.
Imperial – Electric Fan, 12" Diameter (Part No.226112)
from
$108.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Rapid-Cool Thin-Line electric fans
- 12″ Diameter
- 800 CFM
- Use as a pusher or puller fan
- Motors built and tested to quality specifications
- 12 in. universal fit reversible fan
- 800 CFM
- UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.
Imperial – Electric Fan, 14" Diameter (Part No.226114)
from
$99.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Motors built and tested to quality specifications
- 14 in. universal fit reversible fan
- 1250 CFM
- UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.
- Motors built and tested to quality specifications
- 14 in. universal fit reversible fan
- 1250 CFM
- UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.
Best-Selling 1966 GMC LI3500 Thermostat Housing Gasket
Upgrade your LI3500 with our best-selling Thermostat Housing Gasket with a 5 Starts rating across 100 reviews.
Felpro – Engine Coolant Outlet Gasket (Part No.35062)
from
$4.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
See More
Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design
- Manufactured for the sealing repair environment
- Validated for fit, form, and function
- Quality that you can trust
Top-Quality Radiator Caps for 1966 GMC LI3500s
Choose a high-quality OEM or aftermarket Radiator Cap for GMC LI3500s and enjoy top-notch performance from $51.99.
Mr. Gasket – Thermocap Radiator Cap (Part No.2471S)
from
$51.99
Knowing your coolant temperature can help to prevent burn injuries. Thermocap Cap, with its built-in calibrated thermometer, indicates the coolant temperature. This is useful information prior to cap removal. Never attempt to remove Thermocap Cap when the coolant temperature is very hot. The escaping hot coolant and steam may burn you. Reclamation valve works great with your coolant recovery system. Your radiator can reclaim coolant from your overflow bottle. Wide 30 degree to 270 degree F temperature range. Calibrated in centigrade and Fahrenheit. Color-coded temperature ranges.
Product Features:
See More
Product Features:
- Indicates Coolant Temperature
- Helps to Prevent Injuries from coolant or steam burns
- Integrated Coolant Reclamation Valve
- Improves Underhood Appearance
- Fahrenheit and centigrade readings
- Various valve pressures available
Mr. Gasket – Thermocap Radiator Cap (Part No.2476BK)
from
$55.99
The fastest, easiest way to know exactly when it’s safe to open your radiator cap. ThermoCap, with its built-in calibrated thermometer, indicates the coolant temperature.
Product Features:
See More
Product Features:
- Indicates coolant temperature
- Helps prevent coolant injuries
- Fahrenheit and centigrade readings
- Color-coded temperature ranges
- Integrated coolant reclamation valve
- Improves under-hood appearance
- Chromed crown with a colored trim ring
Top Picks for 1966 GMC LI3500 Thermostat and Water Outlet Gaskets
Invest in one of our 4 durable Thermostat and Water Outlet Gaskets for your 1966 GMC, knowing you’re getting trusted brands and expert craftsmanship.
Felpro – WATER OUTLET GASKET (Part No.35562 T)
from
$20.99
Product Features:
See More
- Problem-solving gaskets featuring advanced sealing technologies designed specifically for the repair environment
- PermaDryPlus water outlet gaskets utilize rigid carrier construction and silicone sealing beads to ensure a long-lasting seal, including those with warped housing flanges
- Validated for fit, form, and function
- Quality that you can trust
- Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
Felpro – Engine Coolant Thermostat Housing Gasket (Part No.13224)
from
$2.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
See More
Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Engineered and manufactured specifically for the repair environment
- Unsurpassed quality you can trust
- Validated for fit, form, and function
Mr. Gasket – Water Outlet Gasket (Part No.740)
from
$6.99
Manufactured from a blend of nitrile rubber and fiber for excellent sealing and durability. Precision die cut for application.
Product Features:
See More
Product Features:
- This gasket is bulk packaged
- Made from Cellulose/Nitrile Composition
- Provides Excellent Sealing and Durability
- These Gaskets are Die Cut for a Precision Fit
- Fits Small Block Chevy V8 Engines 1955-’90
- Fits Big Block Chevy V8 Engines 1965-’90
- Fits Small Block Chrysler 318/360 1979-’92
- Fits Small Block Chysler 3.9L/5.2L/5.9L Magnum 1992-’03
Victor Reinz – Engine Coolant Outlet Gasket (Part No.71-13524-00)
from
$2.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
Product Features:
See More
Product Features:
- Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Top-Rated Engine Cooling Fan Controllers for 1966 GMC LI3500s
Make a smart move for your 1966 GMC LI3500 with products all priced from $23.99 to $69.99.
Imperial – Adjustable Thermostatic Fan Control (Part No.226203)
from
$23.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Economy adjustable thermostatic fan control
- Economy Model; 32-248 Deg. F
- For use with Imperial electric fans
- Probe installs into radiator fins
- Contains gaskets, O-rings, or seals to properly replace the product
- Brass construction for accurate temperature sensing
- Zinc coated terminal to resist corrosion
- Vehicle specific applications
Imperial – Adjustable Thermostatic Fan Control (Part No.226204)
from
$65.99
Adjustable Thermostatic Fan Control. 160-210°F; push-in probe. Controls the operating temperature of Imperial electric fans. Operates up to 2 fans.
Product Features:
See More
Product Features:
- Adjustable thermostatic fan control
- 160-210°F push-in probe
- For use with Imperial electric fans
- Probe installs into radiator fins
Imperial – Thermostatic Fan Control – Preset (Part No.226206)
from
$46.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Preset thermostatic fan control
- 185 Deg. F preset
- For use with Imperial electric fans
- Probe installs into radiator fins
- Contains gaskets, O-rings, or seals to properly replace the product
- Brass construction for accurate temperature sensing
- Zinc coated terminal to resist corrosion
- Vehicle specific applications
Imperial – Thermostatic Fan Control – Adjustable (Part No.226208)
from
$69.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Adjustable thermostatic fan control
- 160 Deg. F – 210 Deg. F thread-in probe
- For use with Imperial electric fans
- Thread-in probe for installation in water jacket or radiator
- Contains gaskets, O-rings, or seals to properly replace the product
- Brass construction for accurate temperature sensing
- Zinc coated terminal to resist corrosion
- Vehicle specific applications
Top-Rated Engine Cooling Part Brands For Your 1966 GMC LI3500
When it comes to finding the perfect Engine Cooling Part for your 1966 GMC LI3500, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 5 trusted brands. We carry the most popular Engine Cooling Part brands including FELPRO and Imperial, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $2.99. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 1966 GMC LI3500, providing peace of mind with parts that meet or exceed OEM standards.
Popular FELPRO 1966 GMC LI3500 Engine Cooling Parts
If you’re looking for a top-quality Engine Cooling Part for your 1966 GMC LI3500, Advance Auto Parts has exactly what you need with our selection of FELPRO Engine Cooling Parts. We have 3 FELPRO Engine Cooling Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $2.99 and an average cost of $9.66, you’ll find the perfect Engine Cooling Part for your needs and budget. FELPRO Engine Cooling Parts for the 1966 GMC LI3500 come highly rated, with over 115 customer reviews and an impressive average rating of 4.6 stars. Choosing a FELPRO Engine Cooling Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Top-Quality Imperial 1966 GMC LI3500 Engine Cooling Parts
For those in search of a high-quality Engine Cooling Part for their 1966 GMC LI3500, Advance Auto Parts offers a great selection of Imperial Engine Cooling Parts. With 1 Imperial Engine Cooling Parts in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Engine Cooling Parts start at just $23.99, giving you a range of options to suit your budget. Backed by over 35 customer ratings and an average rating of 4.1 stars, Imperial Engine Cooling Parts provide both reliability and excellent performance. Choosing a Imperial Engine Cooling Part from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
from
$23.99
(35)
Adjustable Thermostatic Fan Control
“good price, but does not come with knob to set temp”
FAQs for 1966 GMC LI3500 Engine Cooling Parts
What are the best-selling Engine Cooling Parts for 1966 GMC LI3500s?
Out of 14 Engine Cooling Parts that fit 1966 GMC LI3500s, the following parts are the top sellers:
- Electric Fan, 14" Diameter (6014933) – $99.99
- Thermostatic Fan Control – Preset (3670008) – $46.99
- Engine Coolant Temperature Sensor (11872063) – $35.99
What’s the price range for 1966 GMC LI3500 Engine Cooling Parts?
The prices of Engine Cooling Parts for the 1966 GMC LI3500 range from $2.99 up to $108.99 for the most premium parts.
What is the average price of an Engine Cooling Part for a 1966 GMC LI3500?
The average price for Engine Cooling Parts for the 1966 GMC LI3500 is $42.78. Keep in mind the variety of part types within our Engine Cooling Part category, where you are likely to find a wide range of prices across a variety of parts and components.
What are the cheapest Engine Cooling Parts for my 1966 GMC LI3500?
The cheapest 1966 GMC LI3500 Engine Cooling Parts we carry are:
- Engine Coolant Thermostat Housing Gasket (5780012) – $2.99
- Engine Coolant Outlet Gasket (12547712) – $2.99
- Engine Coolant Outlet Gasket (5185300) – $4.99
- Water Outlet Gasket (17360269) – $6.99
- WATER OUTLET GASKET (5992915) – $20.99
Does Advance Auto Parts sell Engine Cooling Parts for any other 1966 GMC models?
Yes. We stock Engine Cooling Parts for 20 other popular 1966 GMC models. Some of the most popular are 1966 K15/K1500 Pickup Engine Cooling Parts, 1966 Suburban Engine Cooling Parts, 1966 G1000 Series Engine Cooling Parts, 1966 PB1000 Series Engine Cooling Parts, and 1966 I1500 Engine Cooling Parts.
What are the top-rated Engine Cooling Parts that fit the 1966 GMC LI3500?
Based on 262 reviews by customers, our 1966 GMC LI3500 Engine Cooling Parts have an average customer rating of 4 stars. These are the highest-rated categories of Engine Cooling Parts for the 1966 GMC LI3500 and their top-rated products:
- Thermostat and Water Outlet Gaskets
- WATER OUTLET GASKET (5992915) – $20.99
- Engine Coolant Thermostat Housing Gasket (5780012) – $2.99
- Radiator Caps
- Thermocap Radiator Cap (6900022) – $51.99
- Thermostat Housing Gaskets
- Engine Coolant Outlet Gasket (5185300) – $4.99
What types of Engine Cooling Parts do you sell for my 1966 GMC LI3500?
As of 11/2/25, these are some of the most in-demand types of Engine Cooling Parts for a 1966 GMC LI3500:
Can I get help with 1966 GMC LI3500 Engine Cooling Part orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Engine Cooling Parts and more.
What is your return policy for GMC LI3500 Engine Cooling Parts?
Advance Auto Parts keeps returns simple. For new GMC LI3500 Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.