1976 Checker Marathon Engine Internals

Keep Your 1976 Checker Marathon 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 1976 Checker Marathon looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Connecting Rod Bolts and Nuts, Crankshaft Seals, and Crankshaft Bolts. 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 FELPRO, National, and DriveWorks. For example, FELPRO Engine Internals start at just $20.99 with an average 4.6 star rating. National and DriveWorks offer similar pricing and quality, backed by strong customer feedback. With over 40 reviews and a solid 5 star average, you can shop with confidence knowing other Checker Marathon owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1976 Checker Marathon Engine Internal at Advance Auto Parts is around $56.03, with a range that starts at $1.79 and goes up to $354.99. With 7 options in stock from 5 trusted brands, finding the right fit is easy. Popular picks like Oil Seal, For Use With Chevy Small Block, 5/8" Socket Size, 3/4" – 16 Thread Size, and For Use With Chevy Small Block Large Journal, 4 Bolt Main, Hex Head, Chrome Moly start at just $7.99 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 1976 Checker Marathon in peak condition, inside and out.

Essential 1976 Checker Marathon Engine Internals

ARP Auto Racing – For Use With Chevy Gen Iii/Ls Series Small Block/ Gmpp Lsx Block, Hex Head (Part No.234-5608)

For Use With Chevy Gen Iii/Ls Series Small Block/ Gmpp Lsx Block, Hex Head

from

$354.99
There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel ground washers and high quality nuts. Some applications have provisions for mounting wind age trays and have specially designed standoff studs with serrated lock nuts to position the wind age tray and lock it securely in place. The studs are manufactured from 8740 chrome moly steel, heat treated in-house to 200,000 Pounds Per Square Inch tensile strength, and precision J-form threads rolled after heat treat to create a fastener that has threads 1000 Percent stronger than others.

Product Features:
  • Kit Come Complete With Hardened Parallel Ground Washers And High Quality Nuts
  • Manufactured From 8740 Chrome Moly Steel
  • Heat Treated To 200,000 Pounds Per Square Inch
  • Precision J-Form Threads Rolled After Heat Treat To Create A Fastener That Has Threads 1000 Percent Stronger Than Others
  • 200,000 PSI
  • Sold As A Kit
See More

ARP Auto Racing – For Use With Chevy Small Block, 5/8" Socket Size, 3/4" – 16 Thread Size (Part No.134-2501)

For Use With Chevy Small Block, 5/8" Socket Size, 3/4" - 16 Thread Size

from

$39.99
As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200,000 PSI bolts that let you exert maximum clamping force. Special features include 1/4 Inch thick, wide area washer and an extra tall 12 point head that accepts a deep socket and eliminates the worry of stripping the head.

Product Features:
  • Ultra Strong Bolt Rated At 200,000 PSI
  • 1/4 Inch Thick, Wide Area Washer And An Extra Tall 12 Point Head That Accepts A Deep Socket And Eliminates The Worry Of Stripping The Head
  • Delivers ARP Quality And Reliability
  • Made In USA
  • 12-Point Head
  • Sold Individually
  • 200,000 PSI
  • 2.470″ Underhead Length
See More

ARP Auto Racing – For Use With Chevy Small Block Large Journal, 4 Bolt Main, Hex Head, Chrome Moly (Part No.134-5202)

For Use With Chevy Small Block Large Journal, 4 Bolt Main, Hex Head, Chrome Moly

from

$85.99
Far superior to any other main bolt kit offered for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly, all bolts feature generous under head radius and rolled threads for the utmost reliability. The threads are rolled after heat treating, which makes them about 1000 Percent longer fatigue life than most main bolts, which are threaded prior to heat treating. Available in the popular High Performance Series, which, at a nominal rating of 180,000 PSI, is a premium replacement for OEM fasteners, or the 200,000 PSI nominal rated Pro Series, application specific main bolts with reduced wrenching head and are designed for use in competition applications. Parallel ground, hardened washers are included with each kit.

Product Features:
  • Forged From Premium Grade 8740 Chrome Moly Steel
  • Generous Under Head Radius And Rolled Threads For The Utmost Reliability
  • Threads Are Rolled After Heat Treating, Which Makes Them About 1000 Percent Longer Fatigue Life Than Most Main Bolts, Which Are Threaded Prior To Heat Treating
  • Parallel Ground, Hardened Washers Are Included With Each Kit
  • Large Journal
  • Sold As A Kit
  • 180,000 PSI
See More

Driveworks – Oil Seal (Part No.S-9845)

Oil Seal

from

$7.99
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

National – Engine Crankshaft Seal (Part No.5414)

Engine Crankshaft Seal

from

$42.99
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:
  • Design type: spring loaded; single-lip
  • Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

National – Multi-Purpose Seal (Part No.9845)

Multi-Purpose Seal

from

$9.79
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
  • Excellent high temperature capabilities
  • Compatible with wide range of fluids
  • Delivers quality and reliable performance for every type of repair
See More

Felpro – Engine Crankshaft Seal Kit (Part No.BS 11829-1)

Engine Crankshaft Seal Kit

from

$20.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

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
See More

National – Engine Crankshaft Seal (Part No.472082)

Engine Crankshaft Seal

from

$17.99
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:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

National – Engine Crankshaft Seal (Part No.5118)

Engine Crankshaft Seal

from

$41.99
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:
  • 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
See More

Dorman – Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each) (Part No.635-002)

Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each)

from

$1.79
This engine connecting rod nut is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine connecting rod nut matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this nut is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Most Popular Connecting Rod Bolts and Nut for 1976 Checker Marathons

Enhance your 1976 Checker Marathon with this popular Connecting Rod Bolts and Nut we have in stock, for $1.79.

Dorman – Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each) (Part No.635-002)

Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each)

from

$1.79
This engine connecting rod nut is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine connecting rod nut matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this nut is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Best-Selling 1976 Checker Marathon Crankshaft Seals

Upgrade your Marathon with one of our 3 best-selling Crankshaft Seals, earning an average 4.5 stars rating across 20 reviews.

Felpro – Engine Crankshaft Seal Kit (Part No.BS 11829-1)

Engine Crankshaft Seal Kit

from

$20.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

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
See More

National – Multi-Purpose Seal (Part No.9845)

Multi-Purpose Seal

from

$9.79
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
  • Excellent high temperature capabilities
  • Compatible with wide range of fluids
  • Delivers quality and reliable performance for every type of repair
See More

Driveworks – Oil Seal (Part No.S-9845)

Oil Seal

from

$7.99
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Top-Quality Crankshaft Bolts for 1976 Checker Marathons

Choose a high-quality OEM or aftermarket Crankshaft Bolt for Checker Marathons and enjoy top-notch performance from $39.99.

ARP Auto Racing – For Use With Chevy Small Block, 5/8" Socket Size, 3/4" – 16 Thread Size (Part No.134-2501)

For Use With Chevy Small Block, 5/8" Socket Size, 3/4" - 16 Thread Size

from

$39.99
As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200,000 PSI bolts that let you exert maximum clamping force. Special features include 1/4 Inch thick, wide area washer and an extra tall 12 point head that accepts a deep socket and eliminates the worry of stripping the head.

Product Features:
  • Ultra Strong Bolt Rated At 200,000 PSI
  • 1/4 Inch Thick, Wide Area Washer And An Extra Tall 12 Point Head That Accepts A Deep Socket And Eliminates The Worry Of Stripping The Head
  • Delivers ARP Quality And Reliability
  • Made In USA
  • 12-Point Head
  • Sold Individually
  • 200,000 PSI
  • 2.470″ Underhead Length
See More

ARP Auto Racing – For Use With Chevy Small Block Large Journal, 4 Bolt Main, Hex Head, Chrome Moly (Part No.134-5202)

For Use With Chevy Small Block Large Journal, 4 Bolt Main, Hex Head, Chrome Moly

from

$85.99
Far superior to any other main bolt kit offered for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly, all bolts feature generous under head radius and rolled threads for the utmost reliability. The threads are rolled after heat treating, which makes them about 1000 Percent longer fatigue life than most main bolts, which are threaded prior to heat treating. Available in the popular High Performance Series, which, at a nominal rating of 180,000 PSI, is a premium replacement for OEM fasteners, or the 200,000 PSI nominal rated Pro Series, application specific main bolts with reduced wrenching head and are designed for use in competition applications. Parallel ground, hardened washers are included with each kit.

Product Features:
  • Forged From Premium Grade 8740 Chrome Moly Steel
  • Generous Under Head Radius And Rolled Threads For The Utmost Reliability
  • Threads Are Rolled After Heat Treating, Which Makes Them About 1000 Percent Longer Fatigue Life Than Most Main Bolts, Which Are Threaded Prior To Heat Treating
  • Parallel Ground, Hardened Washers Are Included With Each Kit
  • Large Journal
  • Sold As A Kit
  • 180,000 PSI
See More

ARP Auto Racing – For Use With Chevy Gen Iii/Ls Series Small Block/ Gmpp Lsx Block, Hex Head (Part No.234-5608)

For Use With Chevy Gen Iii/Ls Series Small Block/ Gmpp Lsx Block, Hex Head

from

$354.99
There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel ground washers and high quality nuts. Some applications have provisions for mounting wind age trays and have specially designed standoff studs with serrated lock nuts to position the wind age tray and lock it securely in place. The studs are manufactured from 8740 chrome moly steel, heat treated in-house to 200,000 Pounds Per Square Inch tensile strength, and precision J-form threads rolled after heat treat to create a fastener that has threads 1000 Percent stronger than others.

Product Features:
  • Kit Come Complete With Hardened Parallel Ground Washers And High Quality Nuts
  • Manufactured From 8740 Chrome Moly Steel
  • Heat Treated To 200,000 Pounds Per Square Inch
  • Precision J-Form Threads Rolled After Heat Treat To Create A Fastener That Has Threads 1000 Percent Stronger Than Others
  • 200,000 PSI
  • Sold As A Kit
See More

Top-Rated Engine Internal Brands For Your 1976 Checker Marathon

When it comes to finding the perfect Engine Internal for your 1976 Checker Marathon, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 5 trusted brands. We carry the most popular Engine Internal brands including FELPRO, National, and DriveWorks, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $7.99. Purchasing a Engine Internal from us here at Advance Auto Parts is a smart move for both you and your 1976 Checker Marathon, providing peace of mind with parts that meet or exceed OEM standards.

Popular FELPRO 1976 Checker Marathon Engine Internals

If you’re looking for a top-quality Engine Internal for your 1976 Checker Marathon, Advance Auto Parts has exactly what you need with our selection of FELPRO Engine Internals. We have 1 FELPRO Engine Internals in stock for this fitment, all known for their durability and precision fit. With prices starting at just $20.99, you’ll find the perfect Engine Internal for your needs and budget. FELPRO Engine Internals for the 1976 Checker Marathon come highly rated, with over 3 customer reviews and an impressive average rating of 4.6 stars. Choosing a FELPRO Engine Internal from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Engine Crankshaft Seal Kit
from $20.99
(3)
Engine Crankshaft Seal Kit
“Fit perfect, no leaks.”

Top-Quality National 1976 Checker Marathon Engine Internals

For those in search of a high-quality Engine Internal for their 1976 Checker Marathon, Advance Auto Parts offers a great selection of National Engine Internals. With 1 National 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 $9.79, giving you a range of options to suit your budget. Backed by over 15 customer ratings and an average rating of 4.3 stars, National Engine Internals provide both reliability and excellent performance. Choosing a National Engine Internal from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Multi-Purpose Seal
from $9.79
(15)
Multi-Purpose Seal
“fit”

FAQs for 1976 Checker Marathon Engine Internals

What are the best-selling Engine Internals for 1976 Checker Marathons?

Out of 7 Engine Internals that fit 1976 Checker Marathons, the following parts are the top sellers:

What’s the price range for 1976 Checker Marathon Engine Internals?

The prices of Engine Internals for the 1976 Checker Marathon range from $1.79 up to $354.99 for the most premium parts.

What is the average price of an Engine Internal for a 1976 Checker Marathon?

The average price for Engine Internals for the 1976 Checker Marathon is $56.03. 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 Checker Marathon model years?

Yes, we carry Engine Internals for 20 model years of Checker Marathons between 1961 and 1982. The following model years are the most popular for Engine Internal purchases: 1982, 1981, 1980, 1979, 1978, 1977, 1975, 1974, and 1973.

What are the cheapest Engine Internals for my 1976 Checker Marathon?

The cheapest 1976 Checker Marathon Engine Internals we carry are:

What are the top-rated Engine Internals that fit the 1976 Checker Marathon?

The one 1976 Checker Marathon Engine Internal we have in stock is the Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each). It costs $1.79.

What types of Engine Internals do you sell for my 1976 Checker Marathon?

As of 11/2/25, these are some of the most in-demand types of Engine Internals for a 1976 Checker Marathon:

Can I get help with 1976 Checker Marathon Engine Internal orders?

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

What is your return policy for Checker Marathon Engine Internals?

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