1966 Jeep DJ3 Engine Internals

Keep Your 1966 Jeep DJ3 in Top Shape with Quality Engine Internals

Whether you’re repairing or upgrading your Engine Internal, using high-quality parts is key to keeping your 1966 Jeep DJ3 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Standard Single Pistons, Piston and Liners, and Standard Piston Sets. 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 DJ3 Engine Internal at Advance Auto Parts is around $40.12, with a range that starts at $12.49 and goes up to $60.99. With 8 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Engine Piston Set, Engine Piston Ring Set, and Engine Piston Set start at just $32.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Internal, 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 DJ3 in peak condition, inside and out.

Essential 1966 Jeep DJ3 Engine Internals

Omix – Crankshaft Seal Kit; Rear; 134 CI; 45-71 Willys CJ (Part No.17458.01)

Crankshaft Seal Kit; Rear; 134 CI; 45-71 Willys CJ

from

$43.99
Tired of looking at the stains on your driveway? Are you repairing or rebuilding your engine? Gaskets are a cheap solution to prevent or stop leaks. Omix-ADA offers high quality replacement gaskets designed specifically for your Jeep.

Product Features:
  • 4 Piece
  • OE Style
  • Direct Fit
See More

National – Multi-Purpose Seal (Part No.471504)

Multi-Purpose Seal

from

$12.49
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.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

Sealed Power – Engine Piston Set (Part No.88NP 20)

Engine Piston Set

from

$49.49
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.

Product Features:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Omix – Piston; .030; 134CI (Part No.17427.03)

Piston; .030; 134CI

from

$88.99
Are you rebuilding an engine and need a fresh set of pistons? Omix-ADA offers high-quality replacement pistons from Standard to .080 thousandths over size. Wrist pins included. They will give you years of service and get you back on the road. Sold individually.

Product Features:
  • .030 Over
  • Engine Work May Be Required To Install This Part
See More

Sealed Power – Engine Piston Set (Part No.88NP 60)

Engine Piston Set

from

$32.99
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.

Product Features:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Set (Part No.88NP)

Engine Piston Set

from

$32.99
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.

Product Features:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Set (Part No.88NP 80)

Engine Piston Set

from

$49.49
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.

Product Features:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Ring Set (Part No.E-104KC)

Engine Piston Ring Set

from

$60.99
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.

Product Features:
  • Chrome plated ring face
  • Increases wear resistance in dirty air conditions
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Set (Part No.88NP 40)

Engine Piston Set

from

$32.99
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.

Product Features:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Set (Part No.88NP 30)

Engine Piston Set

from

$49.49
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.

Product Features:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Most Popular Standard Single Pistons for 1966 Jeep DJ3s

Enhance your 1966 Jeep DJ3 with one of the 2 Standard Single Pistons we have in stock, starting at just $32.99.

Sealed Power – Engine Piston Set (Part No.88NP 30)

Engine Piston Set

from

$49.49
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.

Product Features:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Set (Part No.88NP 40)

Engine Piston Set

from

$32.99
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.

Product Features:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Best-Selling 1966 Jeep DJ3 Piston and Liners

Upgrade your DJ3 with one of our 2 best-selling Piston and Liners.

Sealed Power – Engine Piston Set (Part No.88NP 20)

Engine Piston Set

from

$49.49
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.

Product Features:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Set (Part No.88NP 60)

Engine Piston Set

from

$32.99
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.

Product Features:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Top-Quality Standard Piston Sets for 1966 Jeep DJ3s

Choose a high-quality OEM or aftermarket Standard Piston Set for Jeep DJ3s and enjoy top-notch performance from $32.99.

Sealed Power – Engine Piston Set (Part No.88NP 80)

Engine Piston Set

from

$49.49
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.

Product Features:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Set (Part No.88NP)

Engine Piston Set

from

$32.99
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.

Product Features:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Our Top Pick for a 1966 Jeep DJ3 Crankshaft Seal

Invest in a durable Crankshaft Seal for your 1966 Jeep, knowing you’re getting trusted brands and expert craftsmanship.

National – Multi-Purpose Seal (Part No.471504)

Multi-Purpose Seal

from

$12.49
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.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

Our Standard Piston Rings for 1966 Jeep DJ3s

Make a smart move for your 1966 Jeep DJ3 with our Standard Piston Ring for $60.99.

Sealed Power – Engine Piston Ring Set (Part No.E-104KC)

Engine Piston Ring Set

from

$60.99
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.

Product Features:
  • Chrome plated ring face
  • Increases wear resistance in dirty air conditions
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

FAQs for 1966 Jeep DJ3 Engine Internals

What are the best-selling Engine Internals for 1966 Jeep DJ3s?

Out of 8 Engine Internals that fit 1966 Jeep DJ3s, the following parts are the top sellers:

What’s the price range for 1966 Jeep DJ3 Engine Internals?

The prices of Engine Internals for the 1966 Jeep DJ3 range from $12.49 up to $60.99 for the most premium parts.

What is the average price of an Engine Internal for a 1966 Jeep DJ3?

The average price for Engine Internals for the 1966 Jeep DJ3 is $40.12. Keep in mind the variety of part types within our Engine Internal 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 Internals for other Jeep DJ3 model years?

Yes, we carry Engine Internals for 6 model years of Jeep DJ3s between 1959 and 1965. The following model years are the most popular for Engine Internal purchases: 1965, 1964, 1963, 1962, 1961, 1960, and 1959.

What are the cheapest Engine Internals for my 1966 Jeep DJ3?

The cheapest 1966 Jeep DJ3 Engine Internals we carry are:

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

Yes. We stock Engine Internals for 27 other popular 1966 Jeep models. Some of the most popular are 1966 Wagoneer Engine Internals, 1966 CJ5 Engine Internals, 1966 DJ5 Engine Internals, 1966 J-2600 Engine Internals, and 1966 J-2500 Engine Internals.

What types of Engine Internals do you sell for my 1966 Jeep DJ3?

As of 11/2/25, these are some of the most in-demand types of Engine Internals for a 1966 Jeep DJ3:

Can I get help with 1966 Jeep DJ3 Engine Internal orders?

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

What is your return policy for Jeep DJ3 Engine Internals?

Advance Auto Parts keeps returns simple. For new Jeep DJ3 Engine Internals and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.