1978 Mercedes-Benz 300SD Differentials

Keep Your 1978 Mercedes-Benz 300SD in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1978 Mercedes-Benz 300SD looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Pinion Shaft Nuts, Front Differential Pinion Bearings, and Differential Mounts. 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 Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like National. For example, National Differentials start at just $17.49 with an average 4.3 star rating. With over 43 reviews and a solid 4 star average, you can shop with confidence knowing other Mercedes-Benz 300SD owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1978 Mercedes-Benz 300SD Differential at Advance Auto Parts is around $35.25, with a range that starts at $7.68 and goes up to $115.38. With 10 options in stock from 6 trusted brands, finding the right fit is easy. Popular picks like Taper Bearing Cone, Bearings, and CONE start at just $8.79 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like Drive Shafts and Axles and Transfer Cases. At Advance Auto Parts, we’re here to help you keep your 1978 Mercedes-Benz 300SD in peak condition, inside and out.

Essential 1978 Mercedes-Benz 300SD Differentials

SKF – Wheel Bearing (Part No.K800023845SKF)

Wheel Bearing

from

$80.32
SKF is a supplier of original equipment wheel bearings, hubs and seals to most of the world’s leading automakers. Engineered and manufactured to the highest quality standards, SKF wheel bearings greatly reduce friction and increase load-carrying capabilities. With an ability to boost reliability under heavy loads and misaligned conditions, SKF wheel bearings offer an ideal solution for many wheel end applications.

Product Features:
  • Precision bearing pre-load and correct application of advanced manufacturing techniques such as orbital rolling
  • 100% tested to the actual OE specifications per part number for fit, form and function
  • High quality steel and surface finishes
  • Proper implementation of heat treatment
See More

Driveworks – Tapered Cone Wheel Bearing Assembly (Part No.S-387-AS)

Tapered Cone Wheel Bearing Assembly

from

$16.99
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Meyle – Differential Mount (Part No.J707016071MEY)

Differential Mount

from

$115.38
Differential Mount

Driveworks – Taper Bearing Cone (Part No.S-M-86649)

Taper Bearing Cone

from

$8.79
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

National – Bearings (Part No.M86649)

Bearings

from

$18.79
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Driveworks – Taper Bearing Cone (Part No.S-HM-88649)

Taper Bearing Cone

from

$19.29
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

SKF – Differential Pinion Bearing (Part No.J702012211SKF)

Differential Pinion Bearing

from

$48.08
Differential Pinion Bearing

National – Bearings (Part No.HM89410)

Bearings

from

$11.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

FAG US – CONE (Part No.KM86649)

CONE

from

$18.99
CONE

National – Bearings (Part No.HM88649)

Bearings

from

$21.79
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

National – Bearings (Part No.HM89449)

Bearings

from

$25.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Febi – Pinion Shaft Nut (Part No.J7030847447FEB)

Pinion Shaft Nut

from

$7.68
Pinion Shaft Nut

National – Bearings (Part No.A-5)

Bearings

from

$17.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Most Popular Differential Pinion Shaft Nut for 1978 Mercedes-Benz 300SDs

Enhance your 1978 Mercedes-Benz 300SD with this popular Differential Pinion Shaft Nut we have in stock, for $7.68.

Febi – Pinion Shaft Nut (Part No.J7030847447FEB)

Pinion Shaft Nut

from

$7.68
Pinion Shaft Nut

Best-Selling 1978 Mercedes-Benz 300SD Front Differential Pinion Bearings

Upgrade your 300SD with one of our 6 best-selling Front Differential Pinion Bearings, earning an average 4.25 stars rating across 4 reviews.

National – Bearings (Part No.M86649)

Bearings

from

$18.79
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

National – Bearings (Part No.HM89449)

Bearings

from

$25.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Driveworks – Taper Bearing Cone (Part No.S-M-86649)

Taper Bearing Cone

from

$8.79
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

National – Bearings (Part No.HM89410)

Bearings

from

$11.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

SKF – Differential Pinion Bearing (Part No.J702012211SKF)

Differential Pinion Bearing

from

$48.08
Differential Pinion Bearing

FAG US – CONE (Part No.KM86649)

CONE

from

$18.99
CONE

Top-Quality Differential Mounts for 1978 Mercedes-Benz 300SDs

Choose a high-quality OEM or aftermarket Differential Mount for Mercedes-Benz 300SDs and enjoy top-notch performance from $115.38.

Meyle – Differential Mount (Part No.J707016071MEY)

Differential Mount

from

$115.38
Differential Mount

Our Top Pick for a 1978 Mercedes-Benz 300SD Differential Bearing

Invest in a durable Differential Bearing for your 1978 Ford, knowing you’re getting trusted brands and expert craftsmanship.

SKF – Wheel Bearing (Part No.K800023845SKF)

Wheel Bearing

from

$80.32
SKF is a supplier of original equipment wheel bearings, hubs and seals to most of the world’s leading automakers. Engineered and manufactured to the highest quality standards, SKF wheel bearings greatly reduce friction and increase load-carrying capabilities. With an ability to boost reliability under heavy loads and misaligned conditions, SKF wheel bearings offer an ideal solution for many wheel end applications.

Product Features:
  • Precision bearing pre-load and correct application of advanced manufacturing techniques such as orbital rolling
  • 100% tested to the actual OE specifications per part number for fit, form and function
  • High quality steel and surface finishes
  • Proper implementation of heat treatment
See More

Our Top-Rated Pinion Shaft Bearings for 1978 Mercedes-Benz 300SDs

Make a smart move for your 1978 Mercedes-Benz 300SD with our Pinion Shaft Bearing for $17.49.

National – Bearings (Part No.A-5)

Bearings

from

$17.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Top-Rated Differential Brands For Your 1978 Mercedes-Benz 300SD

When it comes to finding the perfect Differential for your 1978 Mercedes-Benz 300SD, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 6 trusted brands. We carry the most popular Differential brands including National, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $17.49. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1978 Mercedes-Benz 300SD, providing peace of mind with parts that meet or exceed OEM standards.

Popular National 1978 Mercedes-Benz 300SD Differentials

If you’re looking for a top-quality Differential for your 1978 Mercedes-Benz 300SD, Advance Auto Parts has exactly what you need with our selection of National Differentials. We have 3 National Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $17.49 and an average cost of $20.59, you’ll find the perfect Differential for your needs and budget. National Differentials for the 1978 Mercedes-Benz 300SD come highly rated, with over 43 customer reviews and an impressive average rating of 4.3 stars. Choosing a National Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Bearings
from $18.79
(3)
Bearings
“as advertised”
Bearings
from $25.49
(1)
Bearings
“This Is The One That Fit My 1971 CHEVY TRUCK 12 BOLT PINION REAR BACK BEARING”
Bearings
from $17.49
(39)
Bearings
“Great bearings”

FAQs for 1978 Mercedes-Benz 300SD Differentials

What are the best-selling Differentials for 1978 Mercedes-Benz 300SDs?

Out of 10 Differentials that fit 1978 Mercedes-Benz 300SDs, the following parts are the top sellers:

What’s the price range for 1978 Mercedes-Benz 300SD Differentials?

The prices of Differentials for the 1978 Mercedes-Benz 300SD range from $7.68 up to $115.38 for the most premium parts.

What is the average price of a Differentials Differential for a 1978 Mercedes-Benz 300SD?

The average price for Differentials for the 1978 Mercedes-Benz 300SD is $35.25. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Differentials for other Mercedes-Benz 300SD model years?

Yes, we carry Differentials for 8 model years of Mercedes-Benz 300SDs between 1979 and 1993. The following model years are the most popular for Differential purchases: 1993, 1992, 1985, 1984, 1983, 1982, 1981, 1980, and 1979.

What are the cheapest Differentials for my 1978 Mercedes-Benz 300SD?

The cheapest 1978 Mercedes-Benz 300SD Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 1978 Mercedes-Benz models?

Yes. We stock Differentials for 9 other popular 1978 Mercedes-Benz models. Some of the most popular are 1978 230 Differentials, 1978 280SE Differentials, 1978 450SEL Differentials, 1978 300D Differentials, and 1978 280E Differentials.

What are the top-rated Differentials that fit the 1978 Mercedes-Benz 300SD?

The one 1978 Mercedes-Benz 300SD Differential we have in stock is the Pinion Shaft Nut. It costs $7.68.

What types of Differentials do you sell for my 1978 Mercedes-Benz 300SD?

As of 4/10/25, these are some of the most in-demand types of Differentials for a 1978 Mercedes-Benz 300SD:

Can I get help with 1978 Mercedes-Benz 300SD Differential orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mercedes-Benz Differentials and more.

What is your return policy for Mercedes-Benz 300SD Differentials?

Advance Auto Parts keeps returns simple. For new Mercedes-Benz 300SD Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.