1981 Cadillac Commercial Chassis Engine Internals

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Keep Your 1981 Cadillac Commercial Chassis 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 1981 Cadillac Commercial Chassis looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Oversized Main Bearings, Standard Individual Rod Bearings, and Oversized Rod Bearing Set. 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 1981 Cadillac Commercial Chassis Engine Internal at Advance Auto Parts is around $89.14, with a range that starts at $18.29 and goes up to $153.99. With 13 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Sealed Power Engine Crankshaft Main Bearing Set, 4906MA, Sealed Power Engine Connecting Rod Bearing Set, 8-3345P, and Sealed Power Engine Connecting Rod Bearing, 3345P 10 start at just $19.49 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 1981 Cadillac Commercial Chassis in peak condition, inside and out.

Essential 1981 Cadillac Commercial Chassis Engine Internals

Sealed Power – Sealed Power Engine Crankshaft Main Bearing Set, 4419M 10 (Part No.4419M 10)

Sealed Power Engine Crankshaft Main Bearing Set, 4419M 10

from

$264.99
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

Sealed Power – Sealed Power Engine Crankshaft Main Bearing Set, 4906MA 10 (Part No.4906MA 10)

Sealed Power Engine Crankshaft Main Bearing Set, 4906MA 10

from

$141.99
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

Sealed Power – Sealed Power Engine Crankshaft Main Bearing Set, 4906MA (Part No.4906MA)

Sealed Power Engine Crankshaft Main Bearing Set, 4906MA

from

$153.99
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

Sealed Power – Sealed Power Engine Crankshaft Main Bearing Set, 4906MA 30 (Part No.4906MA 30)

Sealed Power Engine Crankshaft Main Bearing Set, 4906MA 30

from

$129.99
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

Sealed Power – Sealed Power Engine Crankshaft Main Bearing Set, 4419M 20 (Part No.4419M 20)

Sealed Power Engine Crankshaft Main Bearing Set, 4419M 20

from

$264.99
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing, 3345P (Part No.3345P)

Sealed Power Engine Connecting Rod Bearing, 3345P

from

$19.29
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing, 2120CP 10 (Part No.2120CP 10)

Sealed Power Engine Connecting Rod Bearing, 2120CP 10

from

$30.49
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.
See More

Sealed Power – Sealed Power Engine Connecting Rod Bearing, 2120CP (Part No.2120CP)

Sealed Power Engine Connecting Rod Bearing, 2120CP

from

$30.49
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.
See More

Sealed Power – Sealed Power Engine Connecting Rod Bearing, 3345P 30 (Part No.3345P 30)

Sealed Power Engine Connecting Rod Bearing, 3345P 30

from

$18.79
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing, 3345P 20 (Part No.3345P 20)

Sealed Power Engine Connecting Rod Bearing, 3345P 20

from

$18.29
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing, 3345P 10 (Part No.3345P 10)

Sealed Power Engine Connecting Rod Bearing, 3345P 10

from

$19.49
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.
See More

Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-2120CP (Part No.8-2120CP)

Sealed Power Engine Connecting Rod Bearing Set, 8-2120CP

from

$179.99
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-2120CP 10 (Part No.8-2120CP 10)

Sealed Power Engine Connecting Rod Bearing Set, 8-2120CP 10

from

$179.99
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 40 (Part No.8-3345P 40)

Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 40

from

$99.99
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-3345P (Part No.8-3345P)

Sealed Power Engine Connecting Rod Bearing Set, 8-3345P

from

$113.99
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 30 (Part No.8-3345P 30)

Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 30

from

$99.99
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 20 (Part No.8-3345P 20)

Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 20

from

$99.99
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 10 (Part No.8-3345P 10)

Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 10

from

$112.99
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

Most Popular Oversized Main Bearings for 1981 Cadillac Commercial Chasses

Enhance your 1981 Cadillac Commercial Chassis with one of the 4 Oversized Main Bearings we have in stock, starting at just $129.99.

Sealed Power – Sealed Power Engine Crankshaft Main Bearing Set, 4906MA (Part No.4906MA)

Sealed Power Engine Crankshaft Main Bearing Set, 4906MA

from

$153.99
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

Sealed Power – Sealed Power Engine Crankshaft Main Bearing Set, 4906MA 10 (Part No.4906MA 10)

Sealed Power Engine Crankshaft Main Bearing Set, 4906MA 10

from

$141.99
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

Sealed Power – Sealed Power Engine Crankshaft Main Bearing Set, 4906MA 20 (Part No.4906MA 20)

Sealed Power Engine Crankshaft Main Bearing Set, 4906MA 20

from

$129.99
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

Sealed Power – Sealed Power Engine Crankshaft Main Bearing Set, 4906MA 30 (Part No.4906MA 30)

Sealed Power Engine Crankshaft Main Bearing Set, 4906MA 30

from

$129.99
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

Best-Selling 1981 Cadillac Commercial Chassis Standard Individual Rod Bearings

Upgrade your Commercial Chassis with one of our 3 best-selling Standard Individual Rod Bearings.

Sealed Power – Sealed Power Engine Connecting Rod Bearing, 3345P (Part No.3345P)

Sealed Power Engine Connecting Rod Bearing, 3345P

from

$19.29
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing, 3345P 30 (Part No.3345P 30)

Sealed Power Engine Connecting Rod Bearing, 3345P 30

from

$18.79
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing, 3345P 20 (Part No.3345P 20)

Sealed Power Engine Connecting Rod Bearing, 3345P 20

from

$18.29
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

Top-Quality Oversized Rod Bearing Set for 1981 Cadillac Commercial Chasses

Choose a high-quality OEM or aftermarket Oversized Rod Bearing Set for Cadillac Commercial Chasses and enjoy top-notch performance from $99.99.

Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 10 (Part No.8-3345P 10)

Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 10

from

$112.99
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 20 (Part No.8-3345P 20)

Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 20

from

$99.99
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

Our Top Pick for a 1981 Cadillac Commercial Chassis Oversized Individual Rod Bearing

Invest in a durable Oversized Individual Rod Bearing for your 1981 Cadillac, knowing you’re getting trusted brands and expert craftsmanship.

Sealed Power – Sealed Power Engine Connecting Rod Bearing, 3345P 10 (Part No.3345P 10)

Sealed Power Engine Connecting Rod Bearing, 3345P 10

from

$19.49
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.
See More

Standard Rod Bearing Sets for 1981 Cadillac Commercial Chasses

Make a smart move for your 1981 Cadillac Commercial Chassis with products all priced from $99.99 to $113.99.

Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-3345P (Part No.8-3345P)

Sealed Power Engine Connecting Rod Bearing Set, 8-3345P

from

$113.99
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 40 (Part No.8-3345P 40)

Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 40

from

$99.99
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

Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 30 (Part No.8-3345P 30)

Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 30

from

$99.99
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

FAQs for 1981 Cadillac Commercial Chassis Engine Internals

What are the best-selling Engine Internals for 1981 Cadillac Commercial Chasses?

Out of 13 Engine Internals that fit 1981 Cadillac Commercial Chasses, the following parts are the top sellers:

What’s the price range for 1981 Cadillac Commercial Chassis Engine Internals?

The prices of Engine Internals for the 1981 Cadillac Commercial Chassis range from $18.29 up to $153.99 for the most premium parts.

What is the average price of an Engine Internal for a 1981 Cadillac Commercial Chassis?

The average price for Engine Internals for the 1981 Cadillac Commercial Chassis is $89.14. 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 Cadillac Commercial Chassis model years?

Yes, we carry Engine Internals for 27 model years of Cadillac Commercial Chasses between 1956 and 1984. The following model years are the most popular for Engine Internal purchases: 1984, 1983, 1982, 1980, 1979, 1978, 1977, 1976, and 1975.

What are the cheapest Engine Internals for my 1981 Cadillac Commercial Chassis?

The cheapest 1981 Cadillac Commercial Chassis Engine Internals we carry are:

Does Advance Auto Parts sell Engine Internals for any other 1981 Cadillac models?

Yes. We stock Engine Internals for 3 other popular 1981 Cadillac models. Some of the most popular are 1981 DeVille Engine Internals, 1981 Eldorado Engine Internals, 1981 Seville Engine Internals, and 1981 Fleetwood Engine Internals.

What types of Engine Internals do you sell for my 1981 Cadillac Commercial Chassis?

As of 8/2/26, these are some of the most in-demand types of Engine Internals for a 1981 Cadillac Commercial Chassis:

Can I get help with 1981 Cadillac Commercial Chassis Engine Internal orders?

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

What is your return policy for Cadillac Commercial Chassis Engine Internals?

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