1978 Cadillac Fleetwood Engine Internals
Keep Your 1978 Cadillac Fleetwood 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 1978 Cadillac Fleetwood looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Standard Individual Rod Bearings, Oversized Main 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 1978 Cadillac Fleetwood 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 1978 Cadillac Fleetwood in peak condition, inside and out.
Find Your Specific 1978 Cadillac Fleetwood Engine Internals
Looking for the perfect Engine Internal for your 1978 Cadillac Fleetwood? You’re in the right place. Below, you’ll find links to various types of Engine Internals that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Internals, ensuring durability and a precise fit for your Cadillac Fleetwood. Whether you’re driving a 1978 model or another popular model year like
1988,
1989,
1990,
1991,
1992,
1993,
1994,
1995, and
1996, we’ve got you covered. Purchasing Engine Internals 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 Internals that fit your vehicle.
Essential 1978 Cadillac Fleetwood Engine Internals
Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-2555A 20 (Part No.8-2555A 20)
from
$82.99
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.
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Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-2555A 10 (Part No.8-2555A 10)
from
$165.99
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)
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)
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, 8-2555A 1 (Part No.8-2555A 1)
from
$85.99
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.
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Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-2555CP 30 (Part No.8-2555CP 30)
from
$78.99
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, 8-2555CP 10 (Part No.8-2555CP 10)
from
$79.99
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, 8-2555A 20X2 (Part No.8-2555A 20X2)
from
$78.99
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)
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)
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, 2555CP 20 (Part No.2555CP 20)
from
$6.59
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, 2555A 20 (Part No.2555A 20)
from
$6.29
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, 2555A 2 (Part No.2555A 2)
from
$4.99
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.
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Sealed Power – Sealed Power Engine Connecting Rod Bearing, 2555CP 30 (Part No.2555CP 30)
from
$6.29
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, 2555CP 10 (Part No.2555CP 10)
from
$7.29
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, 2555A 30 (Part No.2555A 30)
from
$7.59
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 (Part No.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.
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Sealed Power – Sealed Power Engine Connecting Rod Bearing, 2555CP (Part No.2555CP)
from
$8.89
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 30 (Part No.2120CP 30)
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 20 (Part No.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, 3755A (Part No.3755A)
from
$6.29
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)
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 Crankshaft Main Bearing Set, 4663MA (Part No.4663MA)
from
$63.99
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)
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, 4663M 20 (Part No.4663M 20)
from
$63.99
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, 4663M (Part No.4663M)
from
$60.99
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)
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, 4294M 10 (Part No.4294M 10)
from
$96.99
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.
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Popular 1978 Cadillac Fleetwood Engine Internals Categories
Most Popular Standard Individual Rod Bearings for 1978 Cadillac Fleetwoods
Enhance your 1978 Cadillac Fleetwood with one of the 3 Standard Individual Rod Bearings we have in stock, starting at just $18.29.
Sealed Power – Sealed Power Engine Connecting Rod Bearing, 3345P (Part No.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)
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)
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
Best-Selling 1978 Cadillac Fleetwood Oversized Main Bearings
Upgrade your Fleetwood with one of our 4 best-selling Oversized Main Bearings.
Sealed Power – Sealed Power Engine Crankshaft Main Bearing Set, 4906MA (Part No.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)
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)
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)
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
Top-Quality Oversized Rod Bearing Set for 1978 Cadillac Fleetwoods
Choose a high-quality OEM or aftermarket Oversized Rod Bearing Set for Cadillac Fleetwoods 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)
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)
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
Top Picks for 1978 Cadillac Fleetwood Standard Rod Bearing Sets
Invest in one of our 3 durable Standard Rod Bearing Sets for your 1978 Cadillac, knowing you’re getting trusted brands and expert craftsmanship.
Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-3345P (Part No.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)
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)
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 Oversized Individual Rod Bearing for 1978 Cadillac Fleetwoods
Make a smart move for your 1978 Cadillac Fleetwood with our Oversized Individual Rod Bearing for $19.49.
Sealed Power – Sealed Power Engine Connecting Rod Bearing, 3345P 10 (Part No.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
FAQs for 1978 Cadillac Fleetwood Engine Internals
What are the best-selling Engine Internals for 1978 Cadillac Fleetwoods?
Out of 13 Engine Internals that fit 1978 Cadillac Fleetwoods, the following parts are the top sellers:
- Sealed Power Engine Crankshaft Main Bearing Set, 4906MA (3702464) – $153.99
- Sealed Power Engine Connecting Rod Bearing Set, 8-3345P (19693566) – $113.99
- Sealed Power Engine Connecting Rod Bearing, 3345P 10 (19692754) – $19.49
What’s the price range for 1978 Cadillac Fleetwood Engine Internals?
The prices of Engine Internals for the 1978 Cadillac Fleetwood range from $18.29 up to $153.99 for the most premium parts.
What is the average price of an Engine Internal for a 1978 Cadillac Fleetwood?
The average price for Engine Internals for the 1978 Cadillac Fleetwood 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 Fleetwood model years?
What are the cheapest Engine Internals for my 1978 Cadillac Fleetwood?
The cheapest 1978 Cadillac Fleetwood Engine Internals we carry are:
- Sealed Power Engine Connecting Rod Bearing, 3345P 20 (12022504) – $18.29
- Sealed Power Engine Connecting Rod Bearing, 3345P 30 (19680611) – $18.79
- Sealed Power Engine Connecting Rod Bearing, 3345P (19692752) – $19.29
- Sealed Power Engine Connecting Rod Bearing, 3345P 10 (19692754) – $19.49
- Sealed Power Engine Connecting Rod Bearing Set, 8-3345P 40 (19680461) – $99.99
Does Advance Auto Parts sell Engine Internals for any other 1978 Cadillac models?
Yes. We stock Engine Internals for 3 other popular 1978 Cadillac models. Some of the most popular are 1978 DeVille Engine Internals, 1978 Eldorado Engine Internals, 1978 Seville Engine Internals, and 1978 Commercial Chassis Engine Internals.
What types of Engine Internals do you sell for my 1978 Cadillac Fleetwood?
As of 8/2/26, these are some of the most in-demand types of Engine Internals for a 1978 Cadillac Fleetwood:
Can I get help with 1978 Cadillac Fleetwood 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 Fleetwood Engine Internals?
Advance Auto Parts keeps returns simple. For new Cadillac Fleetwood Engine Internals and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.