1978 Mercury Bobcat Engine Internals
Keep Your 1978 Mercury Bobcat 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 Mercury Bobcat looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Standard Piston Rings, Standard Individual Rod Bearings, 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.
Top-Rated Engine Internals from Trusted Brands
Looking for a reliable Engine Internal? We’ve got you covered with options from brands you know and trust like National and Sealed Power. For example, National Engine Internals start at just $12.29 with an average 4.3 star rating. Sealed Power offer similar pricing and quality, backed by strong customer feedback. With over 6 reviews and a solid 5 star average, you can shop with confidence knowing other Mercury Bobcat owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1978 Mercury Bobcat Engine Internal at Advance Auto Parts is around $40.09, with a range that starts at $6.79 and goes up to $95.99. With 19 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Engine Crankshaft Seal Kit, Engine Connecting Rod Bearing Set, and Engine Piston Ring Set start at just $18.99 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 1978 Mercury Bobcat in peak condition, inside and out.
Find Your Specific 1978 Mercury Bobcat Engine Internals
Looking for the perfect Engine Internal for your 1978 Mercury Bobcat? 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 Mercury Bobcat. Whether you’re driving a 1978 model or another popular model year like
1975,
1976,
1977,
1979, and
1980, 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 Mercury Bobcat Engine Internals
Sealed Power – Main Bearing Set (Part No.127M 10)
from
$95.99
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
Product Features:
See More
Product Features:
- A-Series bi-metal aluminum alloy
- Greater seizure resistance than tri-metal material
- IROX coating
- Polymer coating enhances bearing
- Made with silicon for greater surface hardness
- Silicon particles help polish crankshaft journal (reduces wear during operation)
Sealed Power – Main Bearing Set (Part No.127M)
from
$91.99
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
Product Features:
See More
Product Features:
- H14 Super Duty alloy material
- Best bronze alloy material
- Does not have flash tin plating
- Extreme fatigue resistance & strength
- 3/4 Grooved
- Silicon particles help polish crankshaft journal (reduces wear during operation)
Sealed Power – Engine Crankshaft Main Bearing Set (Part No.4979M .25MM)
from
$47.49
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:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength – provides conformability required for older applications
- State-of-the-art manufacturing
- Exacting tolerances
- Meets or exceeds OEM specifications
Sealed Power – Engine Crankshaft Main Bearing Set (Part No.4979M)
from
$77.99
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.
Product Features:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength – provides conformability required for older applications
- State-of-the-art manufacturing
- Exacting tolerances
- Meets or exceeds OEM specifications
Sealed Power – Engine Piston Ring Set (Part No.E-352X)
from
$35.99
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.
Product Features:
See More
Product Features:
- Unsurpassed quality that you can trust
- Uses leading edge materials
- State-of-the-art manufacturing
- Exacting tolerances
- Meets or exceeds OEM specifications
Sealed Power – Engine Piston Ring Set (Part No.E-351X)
from
$56.99
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.
Product Features:
See More
Product Features:
- Unsurpassed quality that you can trust
- Uses leading edge materials
- State-of-the-art manufacturing
- Exacting tolerances
- Meets or exceeds OEM specifications
Felpro – Engine Crankshaft Seal Kit (Part No.BS 30136)
from
$18.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
See More
Product Features:
- Application specific design to ensure a perfect fit
- Meets or exceeds all original equipment specifications
- Engineered and manufactured specifically for repair applications
- Unsurpassed quality you can trust
- Validated for fit, form, and function
National – Multi-Purpose Seal (Part No.473560N)
from
$12.29
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.
Product Features:
See More
Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
- Resistance to EP lubricants
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
National – Engine Crankshaft Seal (Part No.5288)
from
$20.99
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.
Product Features:
See More
Product Features:
- Design type: springless; multi-lip
- Temperature range: -100 Deg. F to 450 Deg. F / -73 Deg. C to 232 Deg.
- Excellent dry running capabilities
- Low coefficient of friction
- Delivers quality and reliable performance for every type of repair
National – Engine Crankshaft Seal (Part No.5108)
from
$33.49
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:
See More
Product Features:
- Design type: split-lip; 2-piece
- 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
Sealed Power – Engine Connecting Rod Bearing Set (Part No.4-3545A .25MM)
from
$37.99
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.
Product Features:
See More
Product Features:
- A-Series bi-metal aluminum alloy
- Greater seizure resistance than tri-metal material
- Dramatically reduces or eliminates bearing wear
- Made with silicon to provide greater surface hardness
- Silicon particles help polish crankshaft journal to further reduce wear during operation
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-3055CP 30)
from
$28.99
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.
Product Features:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength
- Provides conformability required for older apps
- Our standard material is comparable to competitors performance bearing
- Note – This material offers less resistance to wear & corrosion than other materials.
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-3055CP 10)
from
$30.99
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.
Product Features:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength
- Provides conformability required for older apps
- Our standard material is comparable to competitors performance bearing
- Note – This material offers less resistance to wear & corrosion than other materials.
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing Set (Part No.4-3545A)
from
$41.49
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:
See More
Product Features:
- A-Series bi-metal aluminum alloy
- Greater seizure resistance than tri-metal material
- Dramatically reduces or eliminates bearing wear
- Made with silicon to provide greater surface hardness
- Silicon particles help polish crankshaft journal to further reduce wear during operation
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-3055CP)
from
$70.99
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.
Product Features:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength
- Provides conformability required for older apps
- Our standard material is comparable to competitors performance bearing
- Note – This material offers less resistance to wear & corrosion than other materials.
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-3055CP 20)
from
$31.99
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.
Product Features:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength
- Provides conformability required for older apps
- Our standard material is comparable to competitors performance bearing
- Note – This material offers less resistance to wear & corrosion than other materials.
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing (Part No.3545A)
from
$7.99
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.
Product Features:
See More
Product Features:
- A-Series bi-metal aluminum alloy
- Greater seizure resistance than tri-metal material
- Dramatically reduces or eliminates bearing wear
- Made with silicon to provide greater surface hardness
- Silicon particles help polish crankshaft journal to further reduce wear during operation
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing (Part No.3545A .25MM)
from
$6.79
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.
Product Features:
See More
Product Features:
- A-Series bi-metal aluminum alloy
- Greater seizure resistance than tri-metal material
- Dramatically reduces or eliminates bearing wear
- Made with silicon to provide greater surface hardness
- Silicon particles help polish crankshaft journal to further reduce wear during operation
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing (Part No.3055CP)
from
$12.29
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.
Product Features:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength
- Provides conformability required for older apps
- Our standard material is comparable to competitors performance bearing
- Note – This material offers less resistance to wear & corrosion than other materials.
- Utilizes ISO & QS certified manufacturing
Popular 1978 Mercury Bobcat Engine Internals Categories
Most Popular Standard Piston Rings for 1978 Mercury Bobcats
Enhance your 1978 Mercury Bobcat with one of the 2 Standard Piston Rings we have in stock, starting at just $35.99.
Sealed Power – Engine Piston Ring Set (Part No.E-352X)
from
$35.99
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.
Product Features:
See More
Product Features:
- Unsurpassed quality that you can trust
- Uses leading edge materials
- State-of-the-art manufacturing
- Exacting tolerances
- Meets or exceeds OEM specifications
Sealed Power – Engine Piston Ring Set (Part No.E-351X)
from
$56.99
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.
Product Features:
See More
Product Features:
- Unsurpassed quality that you can trust
- Uses leading edge materials
- State-of-the-art manufacturing
- Exacting tolerances
- Meets or exceeds OEM specifications
Best-Selling 1978 Mercury Bobcat Standard Individual Rod Bearings
Upgrade your Bobcat with one of our 3 best-selling Standard Individual Rod Bearings.
Sealed Power – Engine Connecting Rod Bearing (Part No.3055CP)
from
$12.29
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.
Product Features:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength
- Provides conformability required for older apps
- Our standard material is comparable to competitors performance bearing
- Note – This material offers less resistance to wear & corrosion than other materials.
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing (Part No.3545A)
from
$7.99
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.
Product Features:
See More
Product Features:
- A-Series bi-metal aluminum alloy
- Greater seizure resistance than tri-metal material
- Dramatically reduces or eliminates bearing wear
- Made with silicon to provide greater surface hardness
- Silicon particles help polish crankshaft journal to further reduce wear during operation
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing (Part No.3545A .25MM)
from
$6.79
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.
Product Features:
See More
Product Features:
- A-Series bi-metal aluminum alloy
- Greater seizure resistance than tri-metal material
- Dramatically reduces or eliminates bearing wear
- Made with silicon to provide greater surface hardness
- Silicon particles help polish crankshaft journal to further reduce wear during operation
- Utilizes ISO & QS certified manufacturing
Top-Quality Standard Rod Bearing Sets for 1978 Mercury Bobcats
Choose a high-quality OEM or aftermarket Standard Rod Bearing Set for Mercury Bobcats and enjoy top-notch performance from $28.99.
Sealed Power – Engine Connecting Rod Bearing Set (Part No.4-3545A .25MM)
from
$37.99
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.
Product Features:
See More
Product Features:
- A-Series bi-metal aluminum alloy
- Greater seizure resistance than tri-metal material
- Dramatically reduces or eliminates bearing wear
- Made with silicon to provide greater surface hardness
- Silicon particles help polish crankshaft journal to further reduce wear during operation
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-3055CP)
from
$70.99
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.
Product Features:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength
- Provides conformability required for older apps
- Our standard material is comparable to competitors performance bearing
- Note – This material offers less resistance to wear & corrosion than other materials.
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing Set (Part No.4-3545A)
from
$41.49
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:
See More
Product Features:
- A-Series bi-metal aluminum alloy
- Greater seizure resistance than tri-metal material
- Dramatically reduces or eliminates bearing wear
- Made with silicon to provide greater surface hardness
- Silicon particles help polish crankshaft journal to further reduce wear during operation
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-3055CP 10)
from
$30.99
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.
Product Features:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength
- Provides conformability required for older apps
- Our standard material is comparable to competitors performance bearing
- Note – This material offers less resistance to wear & corrosion than other materials.
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-3055CP 20)
from
$31.99
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.
Product Features:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength
- Provides conformability required for older apps
- Our standard material is comparable to competitors performance bearing
- Note – This material offers less resistance to wear & corrosion than other materials.
- Utilizes ISO & QS certified manufacturing
Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-3055CP 30)
from
$28.99
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.
Product Features:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength
- Provides conformability required for older apps
- Our standard material is comparable to competitors performance bearing
- Note – This material offers less resistance to wear & corrosion than other materials.
- Utilizes ISO & QS certified manufacturing
Top Picks for 1978 Mercury Bobcat Crankshaft Seals
Invest in one of our 4 durable Crankshaft Seals for your 1978 Mercury, knowing you’re getting trusted brands and expert craftsmanship.
National – Multi-Purpose Seal (Part No.473560N)
from
$12.29
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.
Product Features:
See More
Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
- Resistance to EP lubricants
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
National – Engine Crankshaft Seal (Part No.5288)
from
$20.99
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.
Product Features:
See More
Product Features:
- Design type: springless; multi-lip
- Temperature range: -100 Deg. F to 450 Deg. F / -73 Deg. C to 232 Deg.
- Excellent dry running capabilities
- Low coefficient of friction
- Delivers quality and reliable performance for every type of repair
Felpro – Engine Crankshaft Seal Kit (Part No.BS 30136)
from
$18.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
See More
Product Features:
- Application specific design to ensure a perfect fit
- Meets or exceeds all original equipment specifications
- Engineered and manufactured specifically for repair applications
- Unsurpassed quality you can trust
- Validated for fit, form, and function
National – Engine Crankshaft Seal (Part No.5108)
from
$33.49
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:
See More
Product Features:
- Design type: split-lip; 2-piece
- 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
Oversized Main Bearings for 1978 Mercury Bobcats
Make a smart move for your 1978 Mercury Bobcat with products all priced from $47.49 to $95.99.
Sealed Power – Engine Crankshaft Main Bearing Set (Part No.4979M)
from
$77.99
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.
Product Features:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength – provides conformability required for older applications
- State-of-the-art manufacturing
- Exacting tolerances
- Meets or exceeds OEM specifications
Sealed Power – Engine Crankshaft Main Bearing Set (Part No.4979M .25MM)
from
$47.49
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:
See More
Product Features:
- Steel-backed bronze alloy lining with overplate
- Popular for fatigue resistance & strength – provides conformability required for older applications
- State-of-the-art manufacturing
- Exacting tolerances
- Meets or exceeds OEM specifications
Sealed Power – Main Bearing Set (Part No.127M 10)
from
$95.99
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
Product Features:
See More
Product Features:
- A-Series bi-metal aluminum alloy
- Greater seizure resistance than tri-metal material
- IROX coating
- Polymer coating enhances bearing
- Made with silicon for greater surface hardness
- Silicon particles help polish crankshaft journal (reduces wear during operation)
Sealed Power – Main Bearing Set (Part No.127M)
from
$91.99
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
Product Features:
See More
Product Features:
- H14 Super Duty alloy material
- Best bronze alloy material
- Does not have flash tin plating
- Extreme fatigue resistance & strength
- 3/4 Grooved
- Silicon particles help polish crankshaft journal (reduces wear during operation)
Top-Rated Engine Internal Brands For Your 1978 Mercury Bobcat
When it comes to finding the perfect Engine Internal for your 1978 Mercury Bobcat, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Engine Internal brands including National and Sealed Power, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $12.29. Purchasing a Engine Internal from us here at Advance Auto Parts is a smart move for both you and your 1978 Mercury Bobcat, providing peace of mind with parts that meet or exceed OEM standards.
Popular National 1978 Mercury Bobcat Engine Internals
If you’re looking for a top-quality Engine Internal for your 1978 Mercury Bobcat, Advance Auto Parts has exactly what you need with our selection of National Engine Internals. We have 2 National Engine Internals in stock for this fitment, all known for their durability and precision fit. With prices starting at just $12.29 and an average cost of $16.64, you’ll find the perfect Engine Internal for your needs and budget. National Engine Internals for the 1978 Mercury Bobcat come highly rated, with over 4 customer reviews and an impressive average rating of 4.3 stars. Choosing a National Engine Internal from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Top-Quality Sealed Power 1978 Mercury Bobcat Engine Internals
For those in search of a high-quality Engine Internal for their 1978 Mercury Bobcat, Advance Auto Parts offers a great selection of Sealed Power Engine Internals. With 1 Sealed Power Engine Internals in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Engine Internals start at just $37.99, giving you a range of options to suit your budget. Backed by over 1 customer ratings and an average rating of 4.3 stars, Sealed Power Engine Internals provide both reliability and excellent performance. Choosing a Sealed Power Engine Internal from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
FAQs for 1978 Mercury Bobcat Engine Internals
What are the best-selling Engine Internals for 1978 Mercury Bobcats?
Out of 19 Engine Internals that fit 1978 Mercury Bobcats, the following parts are the top sellers:
- Engine Crankshaft Seal Kit (5183006) – $18.99
- Engine Connecting Rod Bearing Set (3695255) – $70.99
- Engine Piston Ring Set (5687942) – $35.99
What’s the price range for 1978 Mercury Bobcat Engine Internals?
The prices of Engine Internals for the 1978 Mercury Bobcat range from $6.79 up to $95.99 for the most premium parts.
What is the average price of an Engine Internal for a 1978 Mercury Bobcat?
The average price for Engine Internals for the 1978 Mercury Bobcat is $40.09. 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 Mercury Bobcat model years?
What are the cheapest Engine Internals for my 1978 Mercury Bobcat?
The cheapest 1978 Mercury Bobcat Engine Internals we carry are:
- Engine Connecting Rod Bearing (3705013) – $6.79
- Engine Connecting Rod Bearing (3695239) – $7.99
- Multi-Purpose Seal (3270130) – $12.29
- Engine Connecting Rod Bearing (19692863) – $12.29
- Engine Crankshaft Seal Kit (5183006) – $18.99
Does Advance Auto Parts sell Engine Internals for any other 1978 Mercury models?
Yes. We stock Engine Internals for 4 other popular 1978 Mercury models. Some of the most popular are 1978 Cougar Engine Internals, 1978 Grand Marquis Engine Internals, 1978 Zephyr Engine Internals, 1978 Marquis Engine Internals, and 1978 Monarch Engine Internals.
What are the top-rated Engine Internals that fit the 1978 Mercury Bobcat?
Based on 6 reviews by customers, our 1978 Mercury Bobcat Engine Internals have an average customer rating of 5 stars. These are the highest-rated categories of Engine Internals for the 1978 Mercury Bobcat and their top-rated products:
- Standard Rod Bearing Sets
- Engine Connecting Rod Bearing Set (19693502) – $37.99
- Crankshaft Seals
- Multi-Purpose Seal (3270130) – $12.29
- Engine Crankshaft Seal (18445479) – $20.99
- Engine Crankshaft Seal Kit (5183006) – $18.99
What types of Engine Internals do you sell for my 1978 Mercury Bobcat?
As of 11/2/25, these are some of the most in-demand types of Engine Internals for a 1978 Mercury Bobcat:
Can I get help with 1978 Mercury Bobcat Engine Internal orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mercury Engine Internals and more.
What is your return policy for Mercury Bobcat Engine Internals?
Advance Auto Parts keeps returns simple. For new Mercury Bobcat Engine Internals and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.