1981 Cadillac Eldorado Engine Internals
Keep Your 1981 Cadillac Eldorado 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 Eldorado looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Oversized Main Bearings, Crankshaft Seals, and Standard Rod Bearing 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 1981 Cadillac Eldorado Engine Internal at Advance Auto Parts is around $68.34, with a range that starts at $3.25 and goes up to $153.99. With 31 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like National Engine Crankshaft Seal, 472082, Sealed Power Engine Connecting Rod Bearing Set, 6-3755A, and Sealed Power Engine Connecting Rod Bearing Set, 8-3345P start at just $18.29 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 Eldorado in peak condition, inside and out.
Find Your Specific 1981 Cadillac Eldorado Engine Internals
Looking for the perfect Engine Internal for your 1981 Cadillac Eldorado? 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 Eldorado. Whether you’re driving a 1981 model or another popular model year like
1994,
1995,
1996,
1997,
1998,
1999,
2000,
2001, and
2002, 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 1981 Cadillac Eldorado Engine Internals
National – National Engine Crankshaft Seal, 5072 (Part No.5072)
from
$33.99
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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National – National Multi-Purpose Seal, 473231 (Part No.473231)
from
$9.99
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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National – National Multi-Purpose Seal, 710555 (Part No.710555)
from
$30.49
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.
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Schaeffler – Schaeffler Repair Sleeve, SR3506 (Part No.SR3506)
from
$39.99
The FAG repair sleeve is a precision element that provides additional sealing for damaged shafts. Made of heat-treated stainless steel, the FAG repair sleeve signifcantly increases the life of the shaft and prevents premature wear. Since no shaft removal or machining is required during the repair, the repair sleeve is a cost effective repair solution to protect damaged surfaces.
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Sealed Power – Sealed Power Engine Piston Ring Set, E-251K 60 (Part No.E-251K 60)
from
$91.99
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 Piston Ring Set, E-408K 40 (Part No.E-408K 40)
from
$94.99
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 Piston Ring Set, E-251X 20 (Part No.E-251X 20)
from
$59.99
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 Piston Ring Set, E-251X 40 (Part No.E-251X 40)
from
$59.99
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 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.
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Sealed Power – Sealed Power Engine Crankshaft Main Bearing Set, 4294M 20 (Part No.4294M 20)
from
$90.99
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 Crankshaft Main Bearing Set, 4294M 30 (Part No.4294M 30)
from
$90.99
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 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.
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Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-4825A (Part No.8-4825A)
from
$104.99
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, 6-3755A (Part No.6-3755A)
from
$43.99
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, 8-3345P 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.
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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.
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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.
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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.
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Sealed Power – Sealed Power Engine Connecting Rod Bearing, 3045A (Part No.3045A)
from
$10.79
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.
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Sealed Power – Sealed Power Engine Connecting Rod Bearing, 3870RA (Part No.3870RA)
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.
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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 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.
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Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 6-3755A 30 (Part No.6-3755A 30)
from
$40.49
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.
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Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 8-3045A 10 (Part No.8-3045A 10)
from
$58.99
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, 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.
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Popular 1981 Cadillac Eldorado Engine Internals Categories
Most Popular Oversized Main Bearings for 1981 Cadillac Eldorados
Enhance your 1981 Cadillac Eldorado with one of the 12 Oversized Main Bearings we have in stock, starting at just $59.99.
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, 4294M 20 (Part No.4294M 20)
from
$90.99
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, 7144MA (Part No.7144MA)
from
$62.99
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.
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Sealed Power – Sealed Power Main Bearing Set, 107M 1 (Part No.107M 1)
from
$97.99
Speed-Pro delivers the power you need and the value and quality that you deserve. Whether you are running at the track, chasing trophies on the strip, or just cruising down the road, count on Speed-Pro to provide the best value in HP engine components
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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.
See More
Sealed Power – Sealed Power Engine Crankshaft Main Bearing Set, 4294M (Part No.4294M)
from
$93.99
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, 4294M 30 (Part No.4294M 30)
from
$90.99
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, 7144MA 40 (Part No.7144MA 40)
from
$59.99
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, 7144MA 30 (Part No.7144MA 30)
from
$59.99
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 Eldorado Crankshaft Seals
Upgrade your Eldorado with one of our 2 best-selling Crankshaft Seals.
National – National Engine Crankshaft Seal, 472082 (Part No.472082)
from
$18.29
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
National – National Engine Crankshaft Seal, 5118 (Part No.5118)
from
$42.49
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.
See More
Top-Quality Standard Rod Bearing Sets for 1981 Cadillac Eldorados
Choose a high-quality OEM or aftermarket Standard Rod Bearing Set for Cadillac Eldorados and enjoy top-notch performance from $43.99.
Sealed Power – Sealed Power Engine Connecting Rod Bearing Set, 6-3755A (Part No.6-3755A)
from
$43.99
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, 8-3345P 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.
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Top Picks for 1981 Cadillac Eldorado Standard Individual Rod Bearings
Invest in one of our 6 durable Standard Individual Rod Bearings for your 1981 Cadillac, knowing you’re getting trusted brands and expert craftsmanship.
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
Sealed Power – Sealed Power Engine Connecting Rod Bearing, 3045A (Part No.3045A)
from
$10.79
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, 3045A 10 (Part No.3045A 10)
from
$9.39
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, 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.
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Our Standard Piston Rings for 1981 Cadillac Eldorados
Make a smart move for your 1981 Cadillac Eldorado with our Standard Piston Ring for $94.99.
Sealed Power – Sealed Power Engine Piston Ring Set, E-408K 40 (Part No.E-408K 40)
from
$94.99
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 Eldorado Engine Internals
What are the best-selling Engine Internals for 1981 Cadillac Eldorados?
Out of 31 Engine Internals that fit 1981 Cadillac Eldorados, the following parts are the top sellers:
- National Engine Crankshaft Seal, 472082 (18444232) – $18.29
- Sealed Power Engine Connecting Rod Bearing Set, 6-3755A (19693597) – $43.99
- Sealed Power Engine Connecting Rod Bearing Set, 8-3345P (19693566) – $113.99
What’s the price range for 1981 Cadillac Eldorado Engine Internals?
The prices of Engine Internals for the 1981 Cadillac Eldorado range from $3.25 up to $153.99 for the most premium parts.
What is the average price of an Engine Internal for a 1981 Cadillac Eldorado?
The average price for Engine Internals for the 1981 Cadillac Eldorado is $68.34. 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 Eldorado model years?
What are the cheapest Engine Internals for my 1981 Cadillac Eldorado?
The cheapest 1981 Cadillac Eldorado Engine Internals we carry are:
- Sealed Power Engine Connecting Rod Bearing, 3755A (3695204) – $6.29
- Sealed Power Engine Connecting Rod Bearing, 3045A 10 (3704602) – $9.39
- Sealed Power Engine Connecting Rod Bearing, 3045A (19694886) – $10.79
- National Engine Crankshaft Seal, 472082 (18444232) – $18.29
- Sealed Power Engine Connecting Rod Bearing, 3345P 20 (12022504) – $18.29
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 Seville Engine Internals, 1981 Fleetwood Engine Internals, and 1981 Commercial Chassis Engine Internals.
What types of Engine Internals do you sell for my 1981 Cadillac Eldorado?
As of 8/2/26, these are some of the most in-demand types of Engine Internals for a 1981 Cadillac Eldorado:
Can I get help with 1981 Cadillac Eldorado 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 Eldorado Engine Internals?
Advance Auto Parts keeps returns simple. For new Cadillac Eldorado Engine Internals and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.