Best Main Bearings

Looking for the best main bearings to keep your engine running smoothly? We’ve tested and reviewed the top 10 options to help you find the perfect fit for your vehicle, whether you’re a DIY enthusiast or a professional mechanic.

Main bearings are the heart of your engine. They support the crankshaft and reduce wear, keeping your vehicle running smoothly. Choosing the right bearings can make all the difference in performance and longevity.

We’ve tested and reviewed the best main bearings on the market. From high-performance builds to stock refreshes, we’ve got you covered. Our guide is simple, clear, and easy to follow.

Discover the perfect fit for your engine. Whether you’re a DIY enthusiast or a professional mechanic, our recommendations will save you time and money. Let’s get started!

List of Top 10 Main Bearings

Title	Best For	Price
Michigan Motorsports LS Main Crank Bearings Standard Size SI-Series \| Fits Gen III/IV 4.8L 5.3L 5.7L 6.0L 6.2L LS Engines \| Complete Bearing Set for Stock or Performance Builds	This product is perfect for car owners and mechanics who are rebuilding or upgrading Gen III and Gen IV LS engines. It’s ideal for stock or performance builds, offering reliable and durable bearing performance.	View on Amazon (paid link)
King Engine Bearings MB5293SI Main Bearing Set	The King Engine Bearings MB5293SI Main Bearing Set is perfect for car owners and mechanics who need reliable engine parts. It’s ideal for standard-sized engines and easy to handle with its lightweight design.	View on Amazon (paid link)
DNJ MB1169 Main Bearings Set Standard for 2011-2022 Chrysler, Dodge, Jeep, Ram, Volkswagen 1500, 1500 Classic, 200 3.6L V6 24V DOHC 3604cc	This main bearings set is perfect for car owners who need a reliable replacement for their 2011-2022 Chrysler, Dodge, Jeep, Ram, or Volkswagen with a 3.6L V6 engine. It’s ideal for those seeking quality and trust from a brand with over 30 years of experience.	View on Amazon (paid link)
King Engine Bearings MB5013XP STDX Main Bearing	The King Engine Bearings MB5013XP STDX Main Bearing is perfect for car enthusiasts and mechanics who need reliable, high-quality parts. It’s ideal for engine repairs or upgrades.	View on Amazon (paid link)
King Engine Bearings (MB5013XP) King Chevy LS1 / LS6 / LS3 (Size STD) Performance Main Bearing Set	This King Engine Bearings set is perfect for racing enthusiasts who need reliable, high-performance bearings. It’s ideal for tough racing conditions like circle track, off-road, or off-shore events.	View on Amazon (paid link)
STD Main & Rod Bearing Set Replacement for Chevy LS 4.8 5.3 5.7 6.0 6.2L Engine 1997-2013 LS1 LS2 LS3 V8, Standard Size Crankshaft Connecting Rod Bearing kit MS2199P MB5293SI CB663P CR807SI	This STD Main & Rod Bearing Set is perfect for car owners with a Chevy LS engine who want to keep their vehicle running smoothly. It’s ideal for those rebuilding or maintaining their 4.8L to 6.2L LS V8 engines from 1997 to 2013.	View on Amazon (paid link)
King Engine Bearings – MB 557SI MB557SI Main Bearing	King Engine Bearings – MB 557SI is perfect for car owners who need reliable, vehicle-specific parts. It’s ideal for those looking for quality and precision.	View on Amazon (paid link)
DNJ MB1160 Main Bearings Set Standard for 2003-2022 Chrysler, Dodge, Jeep, Ram 1500, 1500 Classic, 2500 5.7L-6.4L V8 16V OHV 345cid	This main bearings set is perfect for owners of 2003-2016 Chrysler, Dodge, Jeep, or Ram trucks with 5.7L-6.4L V8 engines. It’s ideal for those needing a reliable, brand-new replacement to keep their engine running smoothly.	View on Amazon (paid link)
DNJ MB1100 Main Bearings Set Standard for 1999-2013 Chrysler, Dodge, Jeep, Mitsubishi, Ram 1500, Aspen, Commander 4.7L V8 16V SOHC 287cid	This DNJ MB1100 Main Bearings Set is perfect for anyone with a 1999-2013 Chrysler, Dodge, Jeep, Mitsubishi, or Ram 1500 with a 4.7L V8 engine. It’s ideal for those needing a reliable, brand-new replacement to keep their vehicle running smoothly.	View on Amazon (paid link)
DNJ MB435 Main Bearings Set Standard for 2001-2022 Ford, Lincoln, Mazda, Mercury 3, 5, 6 2.0L-2.5L L4 16V DOHC 1999cc	This main bearings set is perfect for car owners with 2001-2022 Ford, Lincoln, Mazda, or Mercury vehicles that have a 2.0L-2.5L L4 DOHC engine. It’s ideal for those needing a reliable replacement for their engine’s main bearings.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 Main Bearings handpicked for performance and reliability. Each product is expert-reviewed and backed by customer feedback, ensuring you get the best value for your engine. Whether you’re upgrading or repairing, this guide makes it easy to find the perfect fit.

1. Michigan Motorsports LS Main Crank Bearings Standard Size SI-Series | Fits Gen III/IV 4.8L 5.3L 5.7L 6.0L 6.2L LS Engines | Complete Bearing Set for Stock or Performance Builds

Michigan Motorsports LS Main Crank Bearings Standard Size SI-Series | Fits Gen III/IV 4.8L 5.3L 5.7L 6.0L 6.2L LS Engines | Complete Bearing Set for Stock or Performance Builds

Rebuild your LS engine with confidence using the Michigan Motorsports LS Main Crank Bearings. This complete set includes five standard-size bearings, perfect for Gen III and Gen IV LS engines. It’s ideal for stock refreshes or performance builds.

Fits 4.8L to 6.2L LS engines. Works with factory crankshafts. Great for street or high-output use.

The SI-Series design ensures dependable oil control and long-lasting performance. Its bi-metal construction handles heavy loads and reduces wear. Enjoy quieter, smoother engine operation for years to come.

Pros	Cons
Includes a full set of standard-size main bearings. Fits many LS engines from Gen III and IV. Engineered for strong oil control and durability. Made with bi-metal silicon aluminum for long life. Helps reduce wear and quiet engine operation.	Not for high-RPM engines, may fail under extreme stress. Standard size only, no options for custom builds. Requires professional installation, not DIY-friendly for beginners.

Perfect For:

This product is perfect for car owners and mechanics who are rebuilding or upgrading Gen III and Gen IV LS engines. It’s ideal for stock or performance builds, offering reliable and durable bearing performance.

Ready to Purchase?

View Price on Amazon (paid link)

Best Engine Valve Stem Oil Seals

2. King Engine Bearings MB5293SI Main Bearing Set

The King Engine Bearings MB5293SI Main Bearing Set is a reliable and durable product. It comes in a standard size, making it a perfect fit for many engines. This set is easy to install and built to last.

Its compact packaging measures 18.288 H x 4.318 L x 9.144 W centimeters. The lightweight design weighs only 0.454 kilograms, making it easy to handle and store.

This high-quality bearing set is made in China. It is a great choice for anyone looking for affordable and dependable engine bearings. The King Engine Bearings MB5293SI is a smart investment for your vehicle.

Pros	Cons
Standard size fits most engines, ensuring easy installation. Lightweight package makes handling and shipping hassle-free. Compact dimensions save space in your garage or workshop. Made in China offers affordable quality for your vehicle.	Made in China, may raise quality concerns for some buyers. Standard size only, limits compatibility with non-standard engine builds. No extra features, just basic bearings without added benefits.

Perfect For:

The King Engine Bearings MB5293SI Main Bearing Set is perfect for car owners and mechanics who need reliable engine parts. It’s ideal for standard-sized engines and easy to handle with its lightweight design.

Ready to Purchase?

View Price on Amazon (paid link)

3. DNJ MB1169 Main Bearings Set Standard for 2011-2022 Chrysler, Dodge, Jeep, Ram, Volkswagen 1500, 1500 Classic, 200 3.6L V6 24V DOHC 3604cc

Revitalize your engine with the DNJ MB1169 Main Bearings Set Standard. This brand-new set is designed for precision and durability. It’s perfect for 2011-2022 models of Chrysler, Dodge, Jeep, Ram, and Volkswagen.

Fits seamlessly into 3.6L V6 engines, ensuring smooth performance. Works with 1500, 1500 Classic, and 200 models effortlessly.

Trust DNJ Engine Components for quality and reliability. With 30+ years of experience, they’re a name you can count on.

Pros	Cons
Brand-new DNJ® main bearings for reliable engine performance. Fits 2011-2022 Chrysler, Dodge, Jeep, Ram, Volkswagen models. Trusted 30+ years of DNJ® quality and experience. Full line of domestic and Japanese engine parts available.	Limited to specific vehicle models and engine types. No mention of warranty or return policy. Requires professional installation, not DIY-friendly.

Perfect For:

This main bearings set is perfect for car owners who need a reliable replacement for their 2011-2022 Chrysler, Dodge, Jeep, Ram, or Volkswagen with a 3.6L V6 engine. It’s ideal for those seeking quality and trust from a brand with over 30 years of experience.

Ready to Purchase?

View Price on Amazon (paid link)

4. King Engine Bearings MB5013XP STDX Main Bearing

The King Engine Bearings MB5013XP STDX Main Bearing is a reliable and high-quality product. It comes in a compact package, measuring 11.51 L x 2.15 H x 4.29 W inches. This bearing is lightweight, weighing only 1.25 pounds.

This product is made in Israel, ensuring top-notch craftsmanship. The Part Number MB5013XP STDX makes it easy to identify and order. It is a great choice for engine repairs and maintenance.

With its precise dimensions and quality construction, this bearing is built to last. The King Engine Bearings MB5013XP STDX is a trusted and essential component for any engine system.

Pros	Cons
Compact size, easy to handle and store. Lightweight design, perfect for quick installation. Made in Israel, trusted quality and craftsmanship. Precise part number, ensures perfect fit for your engine.	Heavy at 1.25 pounds, may add extra weight to your vehicle. Large size (11.51 L x 2.15 H x 4.29 W) could be bulky to store. Imported from Israel, might have longer shipping times.

Perfect For:

The King Engine Bearings MB5013XP STDX Main Bearing is perfect for car enthusiasts and mechanics who need reliable, high-quality parts. It’s ideal for engine repairs or upgrades.

Ready to Purchase?

View Price on Amazon (paid link)

5. King Engine Bearings (MB5013XP) King Chevy LS1 / LS6 / LS3 (Size STD) Performance Main Bearing Set

King Engine Bearings (MB5013XP) are designed for high-performance engines. They fit Chevy LS1, LS6, and LS3 models perfectly.

These main bearings handle heavy loads and long races. They’re ideal for circle track, off-road, and off-shore use.

Compact and lightweight, they measure 29.845 H x 5.842 L x 12.065 W cm. They weigh 0.612 kg and are made in Israel.

Pros	Cons
Built for high-load, long-run racing use. Fits Chevy LS1, LS6, and LS3 engines. Standard size for easy engine matching. Lightweight set for simple handling. Made in Israel with trusted build quality.	Not for daily use, best for racing only. Heavy package, adds extra weight to your order. Made in Israel, may not suit all buyers.

Perfect For:

This King Engine Bearings set is perfect for racing enthusiasts who need reliable, high-performance bearings. It’s ideal for tough racing conditions like circle track, off-road, or off-shore events.

Ready to Purchase?

View Price on Amazon (paid link)

6. STD Main & Rod Bearing Set Replacement for Chevy LS 4.8 5.3 5.7 6.0 6.2L Engine 1997-2013 LS1 LS2 LS3 V8, Standard Size Crankshaft Connecting Rod Bearing kit MS2199P MB5293SI CB663P CR807SI

STD Main & Rod Bearing Set Replacement for Chevy LS 4.8 5.3 5.7 6.0 6.2L Engine 1997-2013 LS1 LS2 LS3 V8, Standard Size Crankshaft Connecting Rod Bearing kit MS2199P MB5293SI CB663P CR807SI

This STD Main & Rod Bearing Set is a standard-size crankshaft bearing kit designed for Chevy LS engines from 1997 to 2013. It includes connecting rod bearings and crankshaft main bearings, perfect for 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L LS-series V8 engines.

These bearings support the crankshaft, prevent metal-to-metal contact, and reduce engine damage risk. Made from high-strength metal, they ensure precise fit and reliable performance.

Pros	Cons
Standard size fits Chevy LS engines from 1997-2013. High-strength metal ensures reliable performance and minimal wear. Prevents engine damage by reducing metal-to-metal contact. Easy engine rebuilds with ARMKER’s trusted quality and support.	Standard size may not fit all engine variations. No installation tools included, requires extra purchase. Metal material demands careful handling to avoid damage.

Perfect For:

This STD Main & Rod Bearing Set is perfect for car owners with a Chevy LS engine who want to keep their vehicle running smoothly. It’s ideal for those rebuilding or maintaining their 4.8L to 6.2L LS V8 engines from 1997 to 2013.

Ready to Purchase?

View Price on Amazon (paid link)

7. King Engine Bearings – MB 557SI MB557SI Main Bearing

King Engine Bearings offers the MB 557SI Main Bearing, a vehicle-specific part. It comes in a compact package, measuring 13.2 cm in height, 4.57 cm in length, and 9.14 cm in width. This bearing is lightweight, weighing only 0.499 kilograms.

The MB 557SI is made in Israel, ensuring quality craftsmanship. Its precise fit makes it ideal for specific vehicles. This bearing is designed to perform under demanding conditions.

Get the right fit for your engine with this reliable bearing. Trust King Engine Bearings for durable, high-quality parts.

Pros	Cons
Perfect fit for your specific vehicle. Light weight makes it easy to handle. High quality parts from Israel. Small size for a quick install. Solid build you can trust.	Not universal, fits only specific vehicles. Heavy package, weighs nearly half a kilogram. Large size, takes up more storage space.

Perfect For:

King Engine Bearings – MB 557SI is perfect for car owners who need reliable, vehicle-specific parts. It’s ideal for those looking for quality and precision.

Ready to Purchase?

View Price on Amazon (paid link)

8. DNJ MB1160 Main Bearings Set Standard for 2003-2022 Chrysler, Dodge, Jeep, Ram 1500, 1500 Classic, 2500 5.7L-6.4L V8 16V OHV 345cid

DNJ MB1160 Main Bearings Set is brand new. It is made in standard size. It fits many V8 engines.

It fits Chrysler, Dodge, Jeep, and Ram models. It is made for 5.7L to 6.4L OHV engines.

One set can service a full engine. DNJ has 30+ years of trusted engine parts.

Pros	Cons
Brand New DNJ Main Bearings for peak engine health Fits 2003-2016 Chrysler, Dodge, Jeep, Ram V8 engines perfectly One set covers the entire engine rebuild Trusted DNJ brand with 30+ years of quality Supports both Domestic & Japanese engine parts needs	Limited to specific Chrysler, Dodge, Jeep, Ram models. No premium features, just standard size bearings. Requires professional installation, not DIY-friendly.

Perfect For:

This main bearings set is perfect for owners of 2003-2016 Chrysler, Dodge, Jeep, or Ram trucks with 5.7L-6.4L V8 engines. It’s ideal for those needing a reliable, brand-new replacement to keep their engine running smoothly.

Ready to Purchase?

View Price on Amazon (paid link)

9. DNJ MB1100 Main Bearings Set Standard for 1999-2013 Chrysler, Dodge, Jeep, Mitsubishi, Ram 1500, Aspen, Commander 4.7L V8 16V SOHC 287cid

The DNJ MB1100 Main Bearings Set is brand new and ready to use. It fits 1999-2013 Chrysler, Dodge, Jeep, Mitsubishi, and Ram vehicles with a 4.7L V8 engine.

This set works for HI-OUTPUT and non-HI-OUTPUT models. DNJ Engine Components is a trusted provider of quality engine parts for cars and trucks.

Easy to install, reliable, and built to last. Perfect for keeping your engine running smoothly.

Pros	Cons
Brand-new DNJ® main bearings for reliable engine performance. Fits 1999-2013 Chrysler, Dodge, Jeep, Mitsubishi, Ram models. Trusted DNJ quality with 30+ years of engine expertise. Easy fitment for both HI-OUTPUT and non-HI-OUTPUT engines.	Limited to specific vehicle models and engines. No HI-OUTPUT option for some vehicles. Brand may be less known than competitors.

Perfect For:

This DNJ MB1100 Main Bearings Set is perfect for anyone with a 1999-2013 Chrysler, Dodge, Jeep, Mitsubishi, or Ram 1500 with a 4.7L V8 engine. It’s ideal for those needing a reliable, brand-new replacement to keep their vehicle running smoothly.

Ready to Purchase?

View Price on Amazon (paid link)

10. DNJ MB435 Main Bearings Set Standard for 2001-2022 Ford, Lincoln, Mazda, Mercury 3, 5, 6 2.0L-2.5L L4 16V DOHC 1999cc

This brand new DNJ Main Bearings Set is Standard Size. It fits Ford, Lincoln, Mazda, and Mercury engines from 2001 to 2016.

This one set services the complete engine. DNJ Engine Components provides over 30 years of quality. They are the sole provider chosen for long-term customer loyalty.

Pros	Cons
Brand new DNJ® main bearings set for reliable engine performance. Fits multiple models, ensuring wide compatibility for Ford, Lincoln, Mazda, Mercury. One set services the complete engine, saving time and effort. Trusted brand with 30+ years of quality and experience.	Limited to specific engine types and vehicles. No installation tools or instructions included. Standard size may not fit modified engines.

Perfect For:

This main bearings set is perfect for car owners with 2001-2022 Ford, Lincoln, Mazda, or Mercury vehicles that have a 2.0L-2.5L L4 DOHC engine. It’s ideal for those needing a reliable replacement for their engine’s main bearings.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Main bearings are essential for your engine’s smooth operation. Choosing the right ones saves time and money.

Here’s how to pick the best main bearings for your needs:

Engine Compatibility:
Make sure the bearings fit your engine’s make and model. Check size and type for a perfect match.
Material Quality:
Look for high-strength metals or bi-metal construction. These reduce wear and handle heavy loads better.
Performance Needs:
Decide if you need bearings for stock refreshes or high-performance builds. Choose based on your driving demands.
Brand Reputation:
Stick with trusted brands like King Engine Bearings or DNJ. They offer reliable and durable products.
Ease of Installation:
Pick bearings that are easy to install. This saves time and effort, especially for DIY enthusiasts.
Price and Value:
Compare prices and features. Find bearings that offer great value without sacrificing quality.
Customer Reviews:
Read reviews to see how bearings perform in real-world use. This helps you make an informed choice.

With these tips, you’ll find the perfect main bearings for your engine. Enjoy smoother performance and longer engine life!