1966 Jeep CJ3 Engine Blocks

Keep Your 1966 Jeep CJ3 in Top Shape with Quality Engine Blocks

Whether you’re repairing or upgrading your Engine Block, using high-quality parts is key to keeping your 1966 Jeep CJ3 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Engine Assembly Lube and Thrust Washers. 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.

Competitive Prices and Extensive Inventory

The average price for a 1966 Jeep CJ3 Engine Block at Advance Auto Parts is around $10.14, with a range that starts at $9.79 and goes up to $10.49. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Engine Assembly Lubricant and Dana 18 Compatible Thrust Washer; 45-71 Jeep CJ5 start at just $9.79 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Block, don’t forget to check out other key components like Engine Gaskets and Seals and Engine Timing Parts. At Advance Auto Parts, we’re here to help you keep your 1966 Jeep CJ3 in peak condition, inside and out.

Essential 1966 Jeep CJ3 Engine Blocks

Omix – Dana 18 Compatible Thrust Washer; 45-71 Jeep CJ5 (Part No.18670.24)

Dana 18 Compatible Thrust Washer; 45-71 Jeep CJ5

from

$9.79
Is your Dana 18 transfer case not shifting right? Do you cringe from the grinding noises when you shift? Omix-ADA has the Dana 18 internal parts you need to fix your Jeep’s transfer case. Fix it and enjoy your ride.

Product Features:
  • OE Style
  • Direct Fit
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Sealed Power – Engine Assembly Lubricant (Part No.55-400)

Engine Assembly Lubricant

from

$10.49
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.

Product Features:
  • Formulated for prelubrication cam lobes, lifters & engine bearings
  • Increases load carrying capacity
  • Holds fast to surfaces
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • 4.0 oz. Squeeze Container
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Most Popular Engine Assembly Lube for 1966 Jeep CJ3s

Enhance your 1966 Jeep CJ3 with this popular Engine Assembly Lube we have in stock, for $10.49.

Sealed Power – Engine Assembly Lubricant (Part No.55-400)

Engine Assembly Lubricant

from

$10.49
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.

Product Features:
  • Formulated for prelubrication cam lobes, lifters & engine bearings
  • Increases load carrying capacity
  • Holds fast to surfaces
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • 4.0 oz. Squeeze Container
See More

Best-Selling 1966 Jeep CJ3 Thrust Washer

Upgrade your CJ3 with our best-selling Thrust Washer.

Omix – Dana 18 Compatible Thrust Washer; 45-71 Jeep CJ5 (Part No.18670.24)

Dana 18 Compatible Thrust Washer; 45-71 Jeep CJ5

from

$9.79
Is your Dana 18 transfer case not shifting right? Do you cringe from the grinding noises when you shift? Omix-ADA has the Dana 18 internal parts you need to fix your Jeep’s transfer case. Fix it and enjoy your ride.

Product Features:
  • OE Style
  • Direct Fit
See More

FAQs for 1966 Jeep CJ3 Engine Blocks

What are the best-selling Engine Blocks for 1966 Jeep CJ3s?

Out of 2 Engine Blocks that fit 1966 Jeep CJ3s, the following parts are the top sellers:

What’s the price range for 1966 Jeep CJ3 Engine Blocks?

The prices of Engine Blocks for the 1966 Jeep CJ3 range from $9.79 up to $10.49 for the most premium parts.

What is the average price of an Engine Block for a 1966 Jeep CJ3?

The average price for Engine Blocks for the 1966 Jeep CJ3 is $10.14. Keep in mind the variety of part types within our Engine Block category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Blocks for other Jeep CJ3 model years?

Yes, we carry Engine Blocks for 6 model years of Jeep CJ3s between 1959 and 1965. The following model years are the most popular for Engine Block purchases: 1960, 1959, 1961, 1964, 1962, 1963, and 1965.

What are the cheapest Engine Blocks for my 1966 Jeep CJ3?

The cheapest 1966 Jeep CJ3 Engine Blocks we carry are:

Does Advance Auto Parts sell Engine Blocks for any other 1966 Jeep models?

Yes. We stock Engine Blocks for 26 other popular 1966 Jeep models. Some of the most popular are 1966 CJ5 Engine Blocks, 1966 CJ6 Engine Blocks, 1966 CJ5A Engine Blocks, 1966 J-3700 Engine Blocks, and 1966 J-3800 Engine Blocks.

What types of Engine Blocks do you sell for my 1966 Jeep CJ3?

As of 11/2/25, these are some of the most in-demand types of Engine Blocks for a 1966 Jeep CJ3:

Can I get help with 1966 Jeep CJ3 Engine Block orders?

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

What is your return policy for Jeep CJ3 Engine Blocks?

Advance Auto Parts keeps returns simple. For new Jeep CJ3 Engine Blocks and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.