1966 GMC L3500 Engine Parts
Find Your Specific 1966 GMC L3500 Engine Parts
Below you will find various in-demand GMC Engine Parts, components and accessories for your 1966 L3500. Advance Auto Parts has popular L3500 parts like Oil Pumps, Engine Blocks, Valve Cover and Cylinder Heads and more. You’ll also find aftermarket and OEM Engine Parts for other L3500 model years including
1965
1967 and more. Select a category of 1966 GMC L3500 Engine Parts below and start saving instantly.
Popular 1966 GMC L3500 Engine Parts Categories
Essential Engine Parts for 1966 GMC L3500s
Melling – Melling Stock Replacement OE Type Oil Pump, M-70 (Part No.M-70)
from
$177.99
Made in USA. Melling oil pumps provide dependable performance every time in every application. Every Melling oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling oil pumps use the latest in gear and gerotor technology to provide the highest level of quality and performance. Gears are machined to close tolerances to ensure proper engine pressure and correct, efficient pump operation. End plates are precision ground for maximum wear resistance. Every Melling oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions.
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Imperial – Imperial Engine Oil Cooler, 241040 (Part No.241040)
from
$248.99
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.
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Felpro – Felpro Engine Valve Cover Gasket Set, VS 12932 C (Part No.VS 12932 C)
from
$15.99
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.
See More
Victor Reinz – Victor Reinz Engine Valve Cover Gasket Set, 15-10432-01 (Part No.15-10432-01)
from
$21.99
Oil drops on the driveway are a distant memory thanks to sophisticated engine valve cover and gasket designs. Victor Reinz is at the forefront of engineering the latest sealing technology. Although the primary task of valve cover gaskets is to seal oil and oil spray, they must withstand high temperatures brought on by nearby exhaust manifolds, exhaust crossovers in the cylinder heads, and EGR systems. Victor Reinz valve cover gaskets deliver the quality materials you demand. Where appropriate, Victor Reinz valve cover gaskets are designed with compression limiters to prevent over-torquing, splitting, or the need to retorque.
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MAHLE Original – MAHLE Original Fuel Pump Gasket, D27094 (Part No.D27094)
from
$1.99
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
See More
Victor Reinz – Victor Reinz Fuel Pump Mounting Gasket, 71-13599-00 (Part No.71-13599-00)
from
$4.79
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.
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Melling – Melling Stock Replacement Type Oil Pump Intermediate Shaft, IS-70E (Part No.IS-70E)
from
$14.49
A new Melling oil pump shaft is recommended to complete every new oil pump install. Melling offers a complete line of high quality shafts for domestic and import pump applications. A new oil pump shaft is necessary due to possible metal fatigue, cracking and even twisting damage of the old shaft even when the part appears to be in good condition. Complete every Melling oil pump replacement with a new Melling oil pump shaft.
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Felpro – Felpro Engine Cylinder Head Gasket Set, HS 7961 SB-1 (Part No.HS 7961 SB-1)
from
$89.99
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.
See More
Felpro – Felpro Exhaust Pipe Flange Gasket, 9672 (Part No.9672)
from
$5.29
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.
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Dorman – Dorman Rubber Expansion Plug 7/8 In. – Size Range 7/8 In. – 1 In. (Sold by each), 570-004 (Part No.570-004)
from
$11.99
This engine intake manifold expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
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Felpro – Felpro Engine Valve Stem Oil Seal Set, SS 5112 (Part No.SS 5112)
from
$16.99
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.
See More
National – National Multi-Purpose Seal, 470059 (Part No.470059)
from
$13.29
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
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Dorman – Dorman Rubber Expansion Plug 1-1/4 In. – Size Range 1-1/4 In. – 1-3/8 In. (Sold by each), 570-007 (Part No.570-007)
from
$13.99
This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
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Dorman – Dorman Steel Cup Expansion Plug 13.70mm, Height 0.180 (Sold by each), 555-007 (Part No.555-007)
from
$1.79
This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
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Sealed Power – Sealed Power Engine Valve Spring Retainer Keeper, VK-115 (Part No.VK-115)
from
$0.43
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
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Dorman – Dorman Rubber Expansion Plug 1-3/4 In. – Size Range 1-3/4 In. – 1-7/8 In., 02605 (Part No.02605)
from
$10.99
This engine oil galley plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
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Dorman – Dorman Rubber Expansion Plug 1-3/4 In. – Size Range 1-3/4 In. – 1-7/8 In. (Sold by each), 570-011 (Part No.570-011)
from
$12.99
This engine oil galley plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
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Sealed Power – Sealed Power Engine Connecting Rod Bearing, 2400P (Part No.2400P)
from
$27.99
Sealed Power® Vintage components provide coverage for applications over 35 years old, restoring classics with like new performance. Leading edge materials, ISO & QS certified manufacturing ensures performance and longevity for treasured engine rebuilds.
See More
Upgrade your 1966 GMC L3500 with Top-Quality Engine Parts
When it comes to maintaining or upgrading your 1966 GMC L3500, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your GMC or enhancing its overall performance, Engine Parts are key to keeping your L3500 functioning at its best. At Advance Auto Parts, we offer a wide selection of 18 Engine Parts for the 1966 GMC L3500, designed to meet your needs without breaking the bank.
From
Oil Pump
replacements to
Engine Blocks
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Engine Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Engine Parts for your 1966 GMC L3500 at great prices.
Our Engine Parts inventory for this model
ranges from just $0.43 to $255.99, with
an average price of $45.55.
Our 18 Engine Parts in stock come from 8 trusted brands, so you’re sure to find the right part for your 1966 GMC L3500 without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1966 GMC L3500, we stock popular OEM and aftermarket Engine Parts from top names
like Felpro, Sealed Power, National, and more.
Felpro Engine Parts
start at just $16.99 and boast an impressive 4.6 stars average rating from customers.
Sealed Power and National also bring quality to the table, with Engine Parts available starting at $0.43, and at an average 4.4 stars rating.
With 17 customer reviews and counting, our 1966 GMC L3500 Engine Parts have a strong track record of reliability, ensuring you can trust your purchase.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Engine Part upgrades. Explore related part types like Batteries and Chargers, Fluids and Chemicals
and more to make sure your 1966 GMC L3500 is always ready to roll. We’re committed to providing you with everything you need to keep your L3500 in top shape, all in one place.
Start shopping confidently below for your 1966 GMC L3500!
Best-Selling Oil Pumps for 1966 GMC L3500s
Enhance the driving experience in your GMC with 1 quality Oil Pump components, starting at $177.99.
Melling – Melling Stock Replacement OE Type Oil Pump, M-70 (Part No.M-70)
from
$177.99
Made in USA. Melling oil pumps provide dependable performance every time in every application. Every Melling oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling oil pumps use the latest in gear and gerotor technology to provide the highest level of quality and performance. Gears are machined to close tolerances to ensure proper engine pressure and correct, efficient pump operation. End plates are precision ground for maximum wear resistance. Every Melling oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions.
See More
Most Popular 1966 GMC L3500 Engine Blocks
Customize your GMC with 1 Engine Blocks products
like Oil Pump Shafts, all
priced under $14.49.
Melling – Melling Stock Replacement Type Oil Pump Intermediate Shaft, IS-70E (Part No.IS-70E)
from
$14.49
A new Melling oil pump shaft is recommended to complete every new oil pump install. Melling offers a complete line of high quality shafts for domestic and import pump applications. A new oil pump shaft is necessary due to possible metal fatigue, cracking and even twisting damage of the old shaft even when the part appears to be in good condition. Complete every Melling oil pump replacement with a new Melling oil pump shaft.
See More
Top Picks for 1966 GMC L3500 Valve Cover and Cylinder Heads
Upgrade GMC L3500s with top-quality Valve Cover and Cylinder Heads parts, including 3 OEM and aftermarket selections for your 1966 model.
Sealed Power – Sealed Power Engine Valve Spring Retainer Keeper, VK-115 (Part No.VK-115)
from
$0.43
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
See More
Felpro – Felpro Engine Cylinder Head Gasket Set, HS 7961 SB-1 (Part No.HS 7961 SB-1)
from
$89.99
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.
See More
Dorman – Dorman Steel Cup Expansion Plug 13.70mm, Height 0.180 (Sold by each), 555-007 (Part No.555-007)
from
$1.79
This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
See More
In-Demand Engine Gaskets and Seals for 1966 GMC L3500s
Select from 7 premium Engine Gaskets and Seals parts for your 1966 GMC L3500, with prices ranging from $1.99 to $21.99.
National – National Multi-Purpose Seal, 470059 (Part No.470059)
from
$13.29
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
See More
Felpro – Felpro Engine Valve Stem Oil Seal Set, SS 5112 (Part No.SS 5112)
from
$16.99
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.
See More
Felpro – Felpro Exhaust Pipe Flange Gasket, 9672 (Part No.9672)
from
$5.29
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.
See More
Victor Reinz – Victor Reinz Engine Valve Cover Gasket Set, 15-10432-01 (Part No.15-10432-01)
from
$21.99
Oil drops on the driveway are a distant memory thanks to sophisticated engine valve cover and gasket designs. Victor Reinz is at the forefront of engineering the latest sealing technology. Although the primary task of valve cover gaskets is to seal oil and oil spray, they must withstand high temperatures brought on by nearby exhaust manifolds, exhaust crossovers in the cylinder heads, and EGR systems. Victor Reinz valve cover gaskets deliver the quality materials you demand. Where appropriate, Victor Reinz valve cover gaskets are designed with compression limiters to prevent over-torquing, splitting, or the need to retorque.
See More
Felpro – Felpro Engine Valve Cover Gasket Set, VS 12932 C (Part No.VS 12932 C)
from
$15.99
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.
See More
Victor Reinz – Victor Reinz Fuel Pump Mounting Gasket, 71-13599-00 (Part No.71-13599-00)
from
$4.79
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.
See More
MAHLE Original – MAHLE Original Fuel Pump Gasket, D27094 (Part No.D27094)
from
$1.99
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
See More
Most Sold 1966 GMC L3500 Engine Internals
Explore our best-selling GMC parts for the 1966 L3500 among 1 OEM and aftermarket options starting from $27.99.
Sealed Power – Sealed Power Engine Connecting Rod Bearing, 2400P (Part No.2400P)
from
$27.99
Sealed Power® Vintage components provide coverage for applications over 35 years old, restoring classics with like new performance. Leading edge materials, ISO & QS certified manufacturing ensures performance and longevity for treasured engine rebuilds.
See More
Top-Rated Engine Parts Brands For Your 1966 GMC L3500
Shop for the best-rated brands offering Engine Parts and other products for your 1966 GMC L3500s. Below you’ll find some of our best rated Engine Parts from Felpro, Sealed Power, and National, and more. Engine Parts from these brands that fit a 1966 L3500 start at just $0.43 and are rated as high as 4.6 stars. OEM and aftermarket Engine Parts don’t get more top quality, durable, and affordable than from the brands below.
Popular Felpro 1966 GMC L3500 Engine Parts
When it comes to maintaining or upgrading your 1966 GMC L3500, using quality Engine Parts is essential to ensure durability and a perfect fit. Felpro ticks all of those boxes. We offer a wide selection of Felpro Engine Parts, specifically designed for the 1966 GMC L3500. With over 2 Felpro brand Engine Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $16.99, with an average price of just $53.49. Plus, with over 2 customer reviews and an average rating of 4.6 stars, you can trust that our Felpro Engine Parts will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
from
$89.99
(1)
Felpro Engine Cylinder Head Gasket Set, HS 7961 SB-1
“I ordered a hard to find gasket set for a GMC 305 V-6. We had a snow storm and UPS lost them.I ordered another set.Advance Auto Parts did a awesome jo”
Popular Sealed Power 1966 GMC L3500 Engine Parts
Sealed Power auto parts is one of the highest quality Engine Part brands in the market. Any 1966 GMC L3500 owner should feel confident when installing genuine Sealed Power parts in their vehicle. To ensure the best fit and performance for your 1966 L3500, Advance Auto Parts carries a full inventory of 1 Sealed Power Engine Parts. Plus you will be keeping your GMC in peak condition while saving money because prices on these Sealed Power Engine Parts range up to $0.43, plus, with more than 2 customer reviews and an impressive 4.4 stars average rating, you can be confident the Fram Engine Parts below will deliver on both quality and value.
FAQs for 1966 GMC L3500 Engine Parts
Which Engine Parts are best-sellers for 1966 GMC L3500s?
Out of 18 Engine Parts that fit 1966 GMC L3500s, the following parts are the top sellers:
- Dorman Rubber Expansion Plug 1-3/4 In. – Size Range 1-3/4 In. – 1-7/8 In., 02605 (5701309) – $10.99
- Sealed Power Engine Valve Spring Retainer Keeper, VK-115 (19694179) – $0.43
- Felpro Exhaust Pipe Flange Gasket, 9672 (3211142) – $5.29
What’s the price range for 1966 GMC L3500 Engine Parts?
Engine Part prices for the 1966 GMC L3500 start at $0.43 and go up to $255.99 for the most premium parts.
What’s the average price of a Engine Part for a 1966 GMC L3500?
The average price for Engine Parts for the 1966 GMC L3500 is $45.55. Keep in mind the variety of part types within our Engine Part category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Engine Parts for other GMC L3500 model years?
What are the cheapest Engine Parts for my 1966 GMC L3500?
The cheapest 1966 GMC L3500 Engine Parts we carry in stock are:
- Sealed Power Engine Valve Spring Retainer Keeper, VK-115 (19694179) – $0.43
- Dorman Steel Cup Expansion Plug 13.70mm, Height 0.180 (Sold by each), 555-007 (22146590) – $1.79
- MAHLE Original Fuel Pump Gasket, D27094 (10509522) – $1.99
- Victor Reinz Fuel Pump Mounting Gasket, 71-13599-00 (12548153) – $4.79
- Felpro Exhaust Pipe Flange Gasket, 9672 (3211142) – $5.29
What are the top-rated Engine Parts that fit the 1966 GMC L3500?
Out of 17 reviews by customers, our 1966 GMC L3500 Engine Parts have an average customer rating of . These are some of the highest-rated Engine Part types for the 1966 GMC L3500 and their top-rated products:
- Valve Cover and Cylinder Heads
- Felpro Engine Cylinder Head Gasket Set, HS 7961 SB-1 (19782554) – $89.99
- Sealed Power Engine Valve Spring Retainer Keeper, VK-115 (19694179) – $0.43
- Engine Gaskets and Seals
- Felpro Engine Cylinder Head Gasket Set, HS 7961 SB-1 (19782554) – $89.99
- Sealed Power Engine Valve Spring Retainer Keeper, VK-115 (19694179) – $0.43
What types of Engine Parts do you sell for my 1966 GMC L3500?
As of 8/2/26, these are some of the most in-demand types of Engine Parts for a 1966 GMC L3500:
Can I get help with 1966 GMC L3500 Engine 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 Parts and more.
What is your return policy for GMC L3500 Engine Parts?
Advance Auto Parts keeps returns simple. For new GMC L3500 Engine Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
