Best Automotive Replacement Main Shaft Bearings (Sep. 2026) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

Shindaiwa C504000620 Mainshaft

9.9
CPR Score
Top 2

ACDelco GM Original Equipment S1314 Manual Transmission Main Shaft Rear Bearing

9.8
CPR Score
Top 3

Manual Transmission Main Shaft Bearing for ATS 2016-2018 Genuine GM Parts

9.7
CPR Score
Tips


Based on our evaluations of 306 Automotive Replacement Main Shaft Bearings and the analysis of over 6 consumer satisfaction reviews, We have rank top 30 Best Automotive Replacement Main Shaft Bearings reviews of different brands, such asGeneric, Mopar, TIMKEN, General Motors, Andrews, Crown Automotive, Motive Gear, Sawyer Auto And Part Synergy.

* CherryPicks.Reviews is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Automotive Replacement Main Shaft Bearings Rated by CherryPicks

Market Overview
30 Products Evaluated
  • Highest Price: $241.13
  • Lowest Price: $3.38
  • Avg. Price: $49.24
Price Disclaimer

Top 30 Automotive Replacement Main Shaft Bearings on Amazon (Verified You can Buy)

Top 1

Shindaiwa C504000620 Mainshaft

Shindaiwa
C504000620

Ratings for Shindaiwa (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
DH Lawn and Garden Equipment -
Top 2

ACDelco GM Original Equipment S1314 Manual Transmission Main Shaft Rear Bearing

GM GENUINE PARTS
S1314
3.0 x 3.0 x 3.0 Inches
0.36 pounds

Ratings for GM GENUINE PARTS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Show More
Top 3

Manual Transmission Main Shaft Bearing for ATS 2016-2018 Genuine GM Parts

Part Synergy
24283187-ACDelco
0.16 pounds

Ratings for Part Synergy (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Parts Synergy, Inc. -

Features

Fits: ATS 2016-2018;
Height: 0.01 in; Length (in): 6.45 in; Programming Required: No
Show More
Top 4

Motive Gear FC67402 Manual Transmission Main Shaft Bearing for NV3500, Pocket Bearing 1", C/S & M/S - Fits Chevy NV3500, Replaces: GM 23049623, 23049686, OE 304968, 304968B, National 307-FFL5

Motive Gear
1.0 Pounds

Ratings for Motive Gear (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Accu Auto Parts -

Features

Precision-engineered pocket bearing for NV3500 manual transmissions; features 1" inside diameter and caged needle roller design for optimal support between countershaft (C/S) and main shaft (M/S)
Designed specifically for 1988û1990 Chevy NV3500 units, ensuring a direct OEM-fit replacement for seamless installation and operation.
Show More
Top 5

Crown Automotive 83503249 Main Shaft Bearing

Crown Automotive
83503249
6.0 x 6.0 x 5.5 Inches
1.0 Pounds

Ratings for Crown Automotive (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Autoplicity ✅ 1,504
AutoAnything Inc -
Auto Parts Direct To You 1,391

Features

Crown Automotive is the premiere manufacturer and distributor of quality replacement parts for Jeep
Crown also supports its entire line with a 12 month/12,000 mile warranty
Show More
Top 6

GM Genuine Parts 25186250 Manual Transmission Main Shaft Front Bearing

GM GENUINE PARTS
25186250
3.4 x 3.4 x 1.4 Inches
0.94 pounds

Ratings for GM GENUINE PARTS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Parts Synergy, Inc. -

Features

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
Show More
Top 7

Crown Automotive Main Shaft Bearing Transmission and Transaxle - Automatic

Crown Automotive
J8136623
4.0 x 4.0 x 1.75 inches
1.4 pounds

Ratings for Crown Automotive (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Extrme Off Road -

Features

Crown Automotive a trusted industry leader
Backed by manufacturer's Warranty
Show More
Top 8

Timken NP957859 Manual Transmission Main Shaft Bearing

TIMKEN
NP957859
4.7 x 1.3 x 4.7 inches

Ratings for TIMKEN (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Autoplicity ✅ 1,504
Amazon.com -
Newparts 3,383

Features

Product Type: Auto Part
Model Number: NP957859
Show More
Top 9

Manual Transmission Main Shaft Bearing for Sonic 2012-2018 Genuine GM Parts

Part Synergy
55565098-ACDelco
0.01 pounds

Ratings for Part Synergy (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Parts Synergy, Inc. -

Features

Fits: Sonic 2012-2018;
All products are made with expert care and created by professionals to meet all your requirements.
Show More
Top 10

GM Genuine Parts 90142090 Manual Transmission Main Shaft Bearing

GM GENUINE PARTS
90142090
3.2 x 3.2 x 1.2 Inches

Ratings for GM GENUINE PARTS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

GM-recommended replacement part for your GM vehicle's original factory component
Offering the quality, reliability, and durability of GM OE
Show More
Top 11

Mopar Genuine Steering Intermediate Shaft Bearing 5057849AA

Mopar

Ratings for Mopar (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SwiftPart -
Top 12

Replacement Transfer Case Input Shaft Pilot Bearing Compatible with 1997-2019 Jeep Wrangler

Sawyer Auto
2.0 x 4.0 x 4.0 inches
0.0625 pounds

Ratings for Sawyer Auto (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
WLSupply 4,118

Features

【❗Fitment (Compatibility Description):❗:】 Compatible With 1997-2019 Jeep Wrangler Transfer Case Applications; Confirm Transfer Case Model Before Installation
✅【 Function (Component Description):】 Supports And Centers The Transfer Case Input Shaft To Maintain Alignment With The Transmission Output
Show More
Top 13

Crankshaft Bearing & Seal Set for BG55 BG56 BG86 FS50 4144 020 2050

Generic
4144 020 2050

Ratings for Generic (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
guangzhoufengmouchongwuyongpinyouxiangongsi -

Features

MPN: 4144 020 2050, 41440202050; 9503 003 0242, 95030030242; 9639 003 1230, 96390031230
Model: BR200, SR200, KM56C, KM56RC, BG45,BG55, BG56, BG56C, BG66, BG66C, BG86, BG86C, SH56, SH56C, SH86, SH86C, SH56, SH56C, SH86, SH86C, HT56C, FS40, FS40C, FS45, FS50, FS50C, FS55, FS55R,FS56, FS56C, FS56R, FS56RC, FS70C, FS70R, FS70RC, FC56, FC70, FC70C, HL56K
Top 14

Andrews Mainshaft 208800

Andrews
208800
15.0 x 2.0 x 2.0 inches
2.6 Pounds

Ratings for Andrews (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
MX South -

Features

Replacement mainshafts for all versions of Big Twin boxes
Top 15

Replacement Auto Parts For Crankshaft Main Bearing set for Hyundai Sonata 2015-2019 Santa Fe Sport 15-2018 Mod-R36R-1

Generic

Ratings for Generic (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Vasiliu Store -

Features

🚗 Precision OEM Fit for Select US Models Engineered to match the original specifications of popular American-made and imported vehicles for Ford, for Chevy, for Toyota, for Honda, for Jeep, for Dodge, for RAM, for GMC, for Cadillac, for Ford, for Chevrolet, for RAM, for BMW, for Mercedes-Benz, for Audi ). Ensure perfect compatibility by checking the fitment table before ordering.
⚙️ Durable & Reliable Performance Manufactured from high-quality materials (steel, reinforced polymers, OE-grade alloys) to withstand daily wear, extreme temperatures, and harsh road conditions, ensuring long-lasting performance.
Show More
Top 16

10PCS VA Water Seal V-Shaped Rotating Seal Ring 3/4/5/6/7/8/10/12/14/16/20/22/25/38/55/60(VA-07)

GRGYT
GRGYT

Ratings for GRGYT (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
sanshuilianglishangmao -

Features

Bearings
Top 17

Replacement Auto Parts For 10 Crankshaft Main Bearing set for Kia Optima Sorento 2015-2018 Sportage 15-2019 Mod-R36R-1

Generic

Ratings for Generic (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Vasiliu Store -

Features

🚗 Precision OEM Fit for Select US Models Engineered to match the original specifications of popular American-made and imported vehicles for Ford, for Chevy, for Toyota, for Honda, for Jeep, for Dodge, for RAM, for GMC, for Cadillac, for Ford, for Chevrolet, for RAM, for BMW, for Mercedes-Benz, for Audi ). Ensure perfect compatibility by checking the fitment table before ordering.
⚙️ Durable & Reliable Performance Manufactured from high-quality materials (steel, reinforced polymers, OE-grade alloys) to withstand daily wear, extreme temperatures, and harsh road conditions, ensuring long-lasting performance.
Show More
Top 18

Richmond 1000130010 Richmond-Manual Trans Main Shaft Bearing Manual Trans Main Shaft Bearing

Richmond
1000130010
6.0 x 6.0 x 5.5 Inches
1.1 pounds

Ratings for Richmond (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SG MARKETPLACE -
Crazy4Performance -
Accu Auto Parts -
Autoplicity ✅ 1,504

Features

Richmond Gear 1000130010 Manual Trans Mainshaft Bearing; For Use w/Super T-10 Plus 2-Spd Transmission; Front And Rear;
Top 19

Replacement Auto Parts For Crankshaft Main Bearing set for Kia Optima Sorento 15-18 Sportage 15-19 2.0 2.4L Mod-R36R-1

Generic

Ratings for Generic (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Vasiliu Store -

Features

🚗 Precision OEM Fit for Select US Models Engineered to match the original specifications of popular American-made and imported vehicles for Ford, for Chevy, for Toyota, for Honda, for Jeep, for Dodge, for RAM, for GMC, for Cadillac, for Ford, for Chevrolet, for RAM, for BMW, for Mercedes-Benz, for Audi ). Ensure perfect compatibility by checking the fitment table before ordering.
⚙️ Durable & Reliable Performance Manufactured from high-quality materials (steel, reinforced polymers, OE-grade alloys) to withstand daily wear, extreme temperatures, and harsh road conditions, ensuring long-lasting performance.
Show More
Top 20

Main Bearing for Both Upper and Lower Shafts. Fits Biro Saws 44, 4436, 55 and Replaces A18227

National Band Saw Company
1.5 Pounds

Ratings for National Band Saw Company (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Equipment and Parts Distributor -

Features

Biro Parts
44
Show More
Top 21

Replacement Auto Parts For Crankshaft Main Bearing Kit Fits For 08-20 2.4L 21020-2G100 Hyundai-Kia 2.0L Mod-R36R-1

Generic

Ratings for Generic (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Vasiliu Store -

Features

🚗 Precision OEM Fit for Select US Models Engineered to match the original specifications of popular American-made and imported vehicles for Ford, for Chevy, for Toyota, for Honda, for Jeep, for Dodge, for RAM, for GMC, for Cadillac, for Ford, for Chevrolet, for RAM, for BMW, for Mercedes-Benz, for Audi ). Ensure perfect compatibility by checking the fitment table before ordering.
⚙️ Durable & Reliable Performance Manufactured from high-quality materials (steel, reinforced polymers, OE-grade alloys) to withstand daily wear, extreme temperatures, and harsh road conditions, ensuring long-lasting performance.
Show More
Top 22

General Motors 90142092, Manual Trans Main Shaft Pilot Bearing

General Motors

Ratings for General Motors (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
World Parts Direct -

Features

Genuine General Motors OEM product
Top 23

Crown Automotive J8136619 Main Shaft Bearing

Crown Automotive
J8136619
6.0 x 6.0 x 5.5 inches
1.0 Pounds

Ratings for Crown Automotive (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Trends Auto 784
Quadratec, Inc. -
Amazon.com -

Features

Crown Automotive is the premiere manufacturer and distributor of quality replacement parts for Jeep
Crown also supports its entire line with a 12 month/12,000 mile warranty
Show More
Top 24

Mechanics Choice Manual Transmission Main Shaft Pilot Bearing for 1962-1981 Jeep CJ5, CJ6, CJ7, DJ5, DJ6, Dispatcher, Jeepster, Scrambler

Sawyer Auto
3.0 x 6.0 x 6.0 inches
0.75 pounds

Ratings for Sawyer Auto (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
WLSupply 4,118

Features

【❗Fitment Details❗:】Warner T18
✅【OE Standards:】Our Product Is Designed And Manufactured With Modern Tooling, Ensuring Optimal Quality And Reliability
Show More
Top 25

Part Synergy Replacement for Manual Transmission Main Shaft Bearing for Infiniti G35 2003 OE Fit

Part Synergy
N3 - HTFB40-134A
5.0 x 5.0 x 1.0 inches
2.0 pounds

Ratings for Part Synergy (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Parts Synergy, Inc. -

Features

Product Type: Shaft Bearing
Details: Manual Transmission Main Shaft Bearing
Show More
Top 26

Replacement Auto Parts For 10x Crankshaft Main Bearing For Kia Optima Hyundai Sonata 2.4L DOHC I4 2008-2020 Mod-R36R-1

Generic

Ratings for Generic (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Vasiliu Store -

Features

🚗 Precision OEM Fit for Select US Models Engineered to match the original specifications of popular American-made and imported vehicles for Ford, for Chevy, for Toyota, for Honda, for Jeep, for Dodge, for RAM, for GMC, for Cadillac, for Ford, for Chevrolet, for RAM, for BMW, for Mercedes-Benz, for Audi ). Ensure perfect compatibility by checking the fitment table before ordering.
⚙️ Durable & Reliable Performance Manufactured from high-quality materials (steel, reinforced polymers, OE-grade alloys) to withstand daily wear, extreme temperatures, and harsh road conditions, ensuring long-lasting performance.
Show More
Top 27

Replacement Auto Parts For 10pcs Crankshaft Main Bearing Kit For Various Hyundai Kia 2.0L 2.4L 210202G100 Mod-R36R-1

Generic

Ratings for Generic (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Vasiliu Store -

Features

🚗 Precision OEM Fit for Select US Models Engineered to match the original specifications of popular American-made and imported vehicles for Ford, for Chevy, for Toyota, for Honda, for Jeep, for Dodge, for RAM, for GMC, for Cadillac, for Ford, for Chevrolet, for RAM, for BMW, for Mercedes-Benz, for Audi ). Ensure perfect compatibility by checking the fitment table before ordering.
⚙️ Durable & Reliable Performance Manufactured from high-quality materials (steel, reinforced polymers, OE-grade alloys) to withstand daily wear, extreme temperatures, and harsh road conditions, ensuring long-lasting performance.
Show More
Top 28

10PCS VA Water Seal V-Shaped Rotating Seal Ring 3/4/5/6/7/8/10/12/14/16/20/22/25/38/55/60(VA-18)

GRGYT
GRGYT

Ratings for GRGYT (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
sanshuilianglishangmao -

Features

Bearings
Top 29

ACDelco GM Original Equipment 19206219 Manual Transmission Main Shaft Center Tapered Roller Bearing

GM GENUINE PARTS
19206219
4.0 x 4.0 x 2.0 Inches
2.75 pounds

Ratings for GM GENUINE PARTS (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Show More
Top 30

Replacement Auto Parts For Crankshaft Main Bearing for Hyundai Sonata 15-19 Santa Fe Sport 15-18 2.0L 2.4L Mod-R36R-1

Generic

Ratings for Generic (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Vasiliu Store -

Features

✅ Exact Fit for US Market Vehicles Designed to match OEM specifications for popular US models for Ford, for Chevy, for Toyota, for Honda, for Jeep, for Dodge, for RAM, for GMC, for Cadillac, for Ford, for Chevrolet, for RAM, for BMW, for Mercedes-Benz, for Audi . Verify compatibility using the year/make/model filter.
🛡️ Heavy-Duty Construction CNC-machined from high-grade steel with anti-corrosion coating. Resists rust, wear, and extreme pressure for long-term reliability.
Show More

Top 10 Automotive Replacement Main Shaft Bearings - Verified to Buy (September 2026)

Top 10 Automotive Replacement Main Shaft Bearings Brands on Amazon

Here is the list of top-rated brands that were evaluated by CherryPicks.

  • Shindaiwa
  • GM GENUINE PARTS
  • Part Synergy
  • Motive Gear
  • Crown Automotive
  • TIMKEN
  • Mopar
  • Sawyer Auto
  • Generic
  • Andrews

Top 10 Automotive Replacement Main Shaft Bearings Sellers: CPR Seller Rank List

CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 Trends Auto 60,506 4.7
🥈 Auto Parts Direct To You 38,407 4.8
🥉 Autoplicity ✅ 36,619 4.5
4 Newparts 18,621 4.2
5 WLSupply 15,738 4.4
6 MX South 5,873 4.7
7 SG MARKETPLACE 4,616 4.5
8 Parts Synergy, Inc. 4,120 4.0
9 World Parts Direct 3,887 4.6
10 Quadratec, Inc. 3,213 4.5
View or download top Automotive Replacement Main Shaft Bearings seller & rating report
Trends Auto [60506] Auto Parts Direct To You [38407] Autoplicity ✅ [36619] Newparts [18621] WLSupply [15738] MX South [5873] SG MARKETPLACE [4616] Parts Synergy, Inc. [4120] World Parts Direct [3887] Quadratec, Inc. [3213] Trends Auto 32% Auto Parts Direct To You 20% Autoplicity ✅ 19% Newparts 10% WLSupply 8% MX South 3% SG MARKETPLACE 2% Parts Synergy, Inc. 2% World Parts Direct 2% Quadratec, Inc. 2%

[Get] Automotive Replacement Main Shaft Bearings Deals (✅Exclusively for Prime)

What does "Amazon Fulfilled" Mean?

Amazon Fulfilled refers to products handled by Amazon's logistics, which indicates that the product is stored, packed, and shipped by Amazon from one of its fulfillment centers.

When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.

What does "Prime" Mean?

"Prime" refers to Amazon Prime Member (Join Amazon Prime Now), which indicates eligibility for Prime benefits. When you see "Prime" next to a product on Amazon, This generally means that if you are  an Amazon Prime member, you can get free two-day shipping on that product, and sometimes even same-day or one-day shipping depending on your location.

Prime members also have access to other benefits, including 2-Day ShippingExclusive Member DealsPrime VideoBuy With PrimeAmazon MusicPrime Gaming, and more.

Shop Prime Automotive Replacement Main Shaft Bearings Deals

What does "Free Shipping" Mean?

"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.

Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.


Why Should You Trust Us?

Now hundreds and thousands of Replacement Parts supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Automotive Replacement Main Shaft Bearings to buy for new September 2026?

CherryPicks’s Methodology for Evaluating Automotive Replacement Main Shaft Bearings

We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Replacement Parts items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.

We collected and analyzed 306 of Automotive Replacement Main Shaft Bearings reviews based on our selection criteria. It helped us shortlist the top qualified and rated Automotive Replacement Main Shaft Bearings for Replacement Parts, We found that most customers choose Automotive Replacement Main Shaft Bearings with an average price of $49.24, and the top brands are Generic, Mopar, TIMKEN, General Motors, Andrews, Crown Automotive, Motive Gear, Sawyer Auto And Part Synergy

Then our expert-level editors reviewed all those quality items and selected the top 30 Automotive Replacement Main Shaft Bearings for you, We have researched hundreds of sellers and picked the top sellers for Replacement Parts, including Trends Auto, Auto Parts Direct To You, Autoplicity ✅, Newparts, WLSupply, MX South, SG MARKETPLACE, Parts Synergy, Inc., World Parts Direct, Quadratec, Inc., SwiftPart And Extrme Off Road. The Shindaiwa C504000620 Mainshaft are available for purchase right now, and The seller of #1 rank product has received honest feedback from 4 consumers with an average rating of 5.0.

We've helped a lot of satisfied users get the right Automotive product based on their needs, and save lots of time for them to pick Automotive Replacement Main Shaft Bearings to buy.


Written By Paulo Santos Goncalves

Paulo S. Goncalves is a student of mechanical engineering with hands-on experience in automotive repair — a skill he picked up in his early days. He would be helping you make the best choice regarding automative parts and products here on this site.