Best Automotive Replacement Engine Main Bolts & Studs (Sep. 2026) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

Empi 8mm Deluxe Engine Hardware Kit, Compatible with Dune Buggy, Bug, Beetle,...

9.8
CPR Score
Top 2

ARP 156-1005 Cam Tower Bolt Kit, High Performance, 6 mm x 1.00 Thread, 1.575 ...

9.8
CPR Score
Top 3

ARP (165-5402) 91-99 Saturn 1.9L DOHC Main Stud Kit

9.7
CPR Score
Tips


Our team has analyzed 290 products of different Replacement Parts brands, including Dorman, Honda, ARP, Xotic Performance And Part Synergy. The following list of top 30 Automotive Replacement Engine Main Bolts & Studs is prepared for the customers by analyzing 290 Automotive Replacement Engine Main Bolts & Studs reviews and comparing different features. 

* 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 Engine Main Bolts & Studs Rated by CherryPicks

Market Overview
Automotive Replacement Engine Main Bolts & Studs Reviewed
  • Reviews Analyzed: 1,183 Items
  • CPR Avg. Rating: 8.5 / 10
30 Products Evaluated
  • Highest Price: $147.95
  • Lowest Price: $6.99
  • Avg. Price: $57.68
Price Disclaimer

Top 30 Automotive Replacement Engine Main Bolts & Studs on Amazon (Verified You can Buy)

Top 1

Empi 8mm Deluxe Engine Hardware Kit, Compatible with Dune Buggy, Bug, Beetle, Baja, Bus, Ghia

EMPI

Ratings for EMPI (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
MOORE PARTS SOURCE -
Amazon Resale -

Features

Complete engine hardware kit
For engines With 8mm head studs
Top 2

ARP 156-1005 Cam Tower Bolt Kit, High Performance, 6 mm x 1.00 Thread, 1.575 in Long, 8 mm Hex Head, Chromoly, Black Oxide, Compatible with Ford Coyote, Kit

ARP
156-1005
10.1 x 4.7 x 0.2 inches
1.345 pounds

Ratings for ARP (CPR Score)

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

Features

The package length is 14.5 inches
The package height is 0.65 inches
Show More
Top 3

ARP (165-5402) 91-99 Saturn 1.9L DOHC Main Stud Kit

ARP
165-5402
0.0 x 0.0 x 0.0 inches

Ratings for ARP (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Autoplicity ✅ 1,504
Performance-Products -

Features

Saturn 1.9L DOHC '91-'99 Main Stud Kit
Package Dimensions: 22.1 H x 5.9 L x 10.6 W (centimeters)
Show More
Top 4

Main Stud Replacement Kit for 1962-2001 Ford Small Block Engines 289 & 302 | Xotic Performance™ MP883

Xotic Performance
MP883
9.0551 x 4.3307 x 2.3622 inches

Ratings for Xotic Performance (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
AUTO4YOU -

Features

Direct Fit Replacement - Engineered specifically for 1962-2001 Ford Small Block Engines 289 & 302, ensuring a perfect fit and streamlined installation process. Confirm vehicle compatibility above to guarantee accurate fitment.
Ultra Strength - Utilizing Xotic 7200 material, these main studs offer superior tensile strength compared to standard 8740 chromoly steel. Rated at 220,000 psi tensile strength, these studs provide significantly enhanced clamping forces, surpassing those of standard head bolts.
Show More
Top 5

ARP 234-5603 Main Stud Kit for Small Block Chevy

ARP
234-5603
0.0 x 0.0 x 0.0 Inches
3.15 pounds

Ratings for ARP (CPR Score)

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

Features

Stud/Bolt Kit
Package Dimensions: 6.096 H x 22.352 L x 10.921 W (centimetres)
Show More
Top 6

J MARTIN AUTO LS Main Cap Replacement Bolts Compatible with 2000-2015 Chevy GM LS1 LS2 LS6 LS7 LS9 Engines. Replaces OE 12560273 12560272 12556127., EHC1007S

J MARTIN AUTO
EHC1007S

Ratings for J MARTIN AUTO (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Silver Seal -
Top 7

ARP 2085404 Main Stud for Acura

ARP
208-5404
4.0 x 3.0 x 9.0 Inches
2.0 pounds

Ratings for ARP (CPR Score)

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

Features

Fit type: Fits Acura Honda Integra B18 B18A B18B B20B 208-54
Package Dimensions: 5.588 H x 22.098 L x 10.414 W (centimetres)
Show More
Top 8

4PCS Engine Appearance Cover Mounting Studs for Honda 91501-SS8-A01

ATXYZOO
XY0021
0.98 x 0.43 x 0.43 inches

Ratings for ATXYZOO (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
ATXYZOOAutoparts -

Features

Perfect Fitment - Designed to replace OEM part numbers 91501-SS8-A01 and 91501SS8A01, for Honda models (verify vehicle compatibility before purchase).
Durable & Heat-Resistant Material - Made from high-quality, corrosion-resistant plastic that withstands engine heat and aging, providing long-lasting performance.
Show More
Top 9

Small Block V6/V8 Windage Tray Bolts & Studs (5 Pack) | 7/16-14 Threaded | Durable OE Replacement

EngineQuest
6.0 x 4.5 x 2.0 inches

Ratings for EngineQuest (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Engine Quest -

Features

High Compatibility: Designed for small block V6 and V8 engines, including 4.3L, 5.0L, and 5.7L configurations from 1986 and up.
Precise Fit: Features 7/16-14 threaded end for secure installation into the block.
Show More
Top 10

ARP 1345401 2-Bolt Main Bolt

ARP
134-5401
0.0 x 0.0 x 0.0 inches
1.0 pounds

Ratings for ARP (CPR Score)

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

Features

ARP Main Stud Kit Hex Nuts 2-Bolt Mains Small Block Chevy P/N 134-5401
Part number: 1345401
Show More
Top 11

ARP Main Stud Kit, 12 Point Nuts, 4-Bolt Mains, Chromoly, Black Oxide, Dart LS Next Block, GM LS-Series, Kit

ARP
134-5901
9.0 x 4.1 x 2.3 inches
4.19 pounds

Ratings for ARP (CPR Score)

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

Features

ARP GM LS-Series 4-Bolt Main Stud Kit P/N 134-5901
Package Dimensions: 2.5"H x 8.5"L x 4.0"W
Show More
Top 12

Speedmaster PCE287.1002 Main Stud Kit

Speedmaster
PCE287.1002
6.0 x 3.0 x 2.3 inches
2.74 Pounds

Ratings for Speedmaster (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
JEGS 1,972
Speedmaster USA -
WrenchIt -

Features

Small Block Chevy...
4-Bolt...
Show More
Top 13

ARP (201-5001) BMW M10 S14 Main Stud Kit

ARP
201-5001
4.0 x 3.0 x 9.0 inches
1.65 pounds

Ratings for ARP (CPR Score)

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

Features

BMW M10 S14 Main Stud Kit
Part number: 2015001
Show More
Top 14

ARP 2085401 Main Stud Kit

ARP
208-5401
0.0 x 0.0 x 0.0 Inches
2.0 pounds

Ratings for ARP (CPR Score)

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

Features

Honda H22A & H23A Main Stud Kit
Part number: 2085401
Show More
Top 15

2Pcs Engine Appearance Cover Mounting Stud for Honda 91501-SS8-A01

SUNNER THINKEN
91501SS8A01
0.43 x 0.43 x 0.98 Inches

Ratings for SUNNER THINKEN (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SUNNER THINKEN US -

Features

Ideal match: Our Engine Appearance Cover Studs are compatible for Honda. Each stud is precisely measured and manufactured for a firm, reliable installation without looseness
Package includes: With your purchase, you will receive 2pcs Engine Appearance Cover Stud
Show More
Top 16

ARP AR5.400-1LB 1/2" (5.400" Long with 1.250" Thread) Broached Stud

ARP
AR5.400-1LB
72.0 x 48.0 x 12.0 inches
0.2205 Pounds

Ratings for ARP (CPR Score)

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

Features

Product Type:Auto Part
Item Package Dimension:2.5 cm L X3.7 cm W X13.7 cm H
Show More
Top 17

ARP 2307004 Oil Pump Stud Kit, 12-Point Style, For Select Chevrolet V8 Applications

ARP
230-7004
0.0 x 0.0 x 0.0 Inches
0.1543 pounds

Ratings for ARP (CPR Score)

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

Features

Premium grade oil pump fasteners are inexpensive "insurance" that could save your engine
Manufactured from black oxide finished chrome moly steel
Show More
Top 18

4PCS Engine Cover Stay Grommet and Stud Kit Compatible with Honda Replaces 91501-SS8-A01 91501SS8A01

Quealzara
QUEAWG-215
0.0331 pounds

Ratings for Quealzara (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Bairuijia -

Features

Replacement Part Number: 91501-SS8-A01; 91501SS8A01
Compatible with: Honda
Show More
Top 19

Empi 10Mm Deluxe Engine Hardware Kit Dune Buggy Bug Beetle Baja Bus Ghia 4019

EMPI

Ratings for EMPI (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Euro Partstar -

Features

complete engine hardware kit
for engines with 10mm head studs
Top 20

ARP 1345202 High Performance Series Main Bolt

ARP
134-5202
0.0 x 0.0 x 0.0 Inches
2.0 pounds

Ratings for ARP (CPR Score)

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

Features

Package Dimensions: 5.842 H x 22.098 L x 10.668 W (centimeters)
Made in USA
Show More
Top 21

Main Stud Kit - SBC | Hex Nuts - 2-Bolt Mains - Chromoly - Black Oxide - Large Journal - Small Block Chevy - Kit

Part Synergy
ARP - ARP134-5401
8.7 x 4.1 x 2.3 inches
2.51 pounds

Ratings for Part Synergy (CPR Score)

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

Features

Direct OE Replacement: Matches factory specifications to restore original look and functionality.
Quality Tested: Rigorously tested to ensure reliable performance and accurate fitment.
Show More
Top 22

Honda 90013-ZG9-T00 Bolt Stud (6X83)

Honda
90013-ZG9-T00
0.3937 x 0.3937 x 0.3937 Inches
0.02 pounds

Ratings for Honda (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
PowerToolReplacementParts 768

Features

Honda 90013-ZG9-T00 Bolt Stud (6X83)
Top 23

ARP Vw/Audi 2.0L (Fsi) Msk

ARP
204-5408
2.5 x 8.5 x 4.0 inches
1.9 Pounds

Ratings for ARP (CPR Score)

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

Features

Fits multiple makes and models
Package Dimensions: 1.57 H x 7.62 L x 4.44 W (inches)
Show More
Top 24

2PCS Engine Appearance Cover Mounting Stud For Honda 91501-SS8-A01

URSOGUDE
91501-SS8-A01,91501SS8A01
0.6 x 0.6 x 0.95 Inches
0.0044 pounds

Ratings for URSOGUDE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
URSOGUDE AutoParts -

Features

Good match: Our engine appearance cover studs are compatible for Honda
Replace Part Number: 91501-SS8-A01,91501SS8A01
Show More
Top 25

Honda Engine Cover Mounting Stud - 91501-PVJ-A01

Honda
91501PVJA01
1.0 x 1.0 x 1.0 Inches

Ratings for Honda (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Bergstrom Honda -

Features

Genuine Oem:Yes, Category 2:Engine / Transaxle, Item Name:Engine Cover Stud, Category 1:Engine
Brand:Honda, Fitment Type:Direct Replacement, Part Ref# On Diagram:ONLY PART REFERENCE #3 ON THE DIAGRAM IS
Show More
Top 26

ARP 100-0602 Red Anodized Aluminum 7/16" Diameter 2.500" OAL 12-Point Break-Away Blower Stud Kit

ARP
100-0602
10.0 x 6.0 x 0.75 inches
0.57 pounds

Ratings for ARP (CPR Score)

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

Features

These are complete line of Heavy-Duty Shop Products that will bring you years of reliable performance
Brand name to trust on
Show More
Top 27

(2 Pack) Throttle Cable Adjustment Stud Kit #8009 Compatible with 1977 & Newer Chevrolet Models (Hardware Included: Nut, Washers, Cotter Pin)

SyoLnKeo
Throttle Cable Adjustment Stud Kit #8009

Ratings for SyoLnKeo (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Skylinke -

Features

1. Complete Mounting Set: Everything you need for installation is included—nut, washers, and cotter pin—saving time and effort.
2. Premium Corrosion Resistance: Features a lightweight yet durable construction with a baked enamel finish that combats rust and wear for long-lasting performance.
Show More
Top 28

Speedmaster PCE287.1001 Compatible with Chevy SBC 350 2 Bolt 12 Point Main Stud Kit

Speedmaster
PCE287.1001
6.3 x 3.0 x 2.2 Inches
1.97 pounds

Ratings for Speedmaster (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
WrenchIt -

Features

Included components as shown in product images
Speedmaster creates unique and distinctive DNA items inspired by the blend of old and new technology. Its empowered work forced drives innovation not only in the products it sells but with the way it goes about doing it.
Show More
Top 29

ARP 230-7003 2307003 Oil Pump Stud Kit , Black

ARP
230-7003
5.4 x 3.5 x 0.5 Inches
0.1543 pounds

Ratings for ARP (CPR Score)

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

Features

Package Dimensions: 1.27 H x 13.97 L x 8.382 W (centimeters)
Made in USA
Show More
Top 30

Dorman 23705 Carburetor Stud Kit Universal Fit

Dorman
23705
0.1 x 0.1 x 0.1 inches
0.1 pounds

Ratings for Dorman (CPR Score)

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

Features

Suitable for a range of applications
Sturdy steel construction
Show More

Top 10 Automotive Replacement Engine Main Bolts & Studs - Verified to Buy (September 2026)

Top 10 Automotive Replacement Engine Main Bolts & Studs Brands on Amazon

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

  • EMPI
  • ARP
  • Xotic Performance
  • J MARTIN AUTO
  • ATXYZOO
  • EngineQuest
  • Speedmaster
  • SUNNER THINKEN
  • Quealzara
  • Part Synergy

Top 10 Automotive Replacement Engine Main Bolts & Studs 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
🥇 PowerToolReplacementParts 61,485 4.8
🥈 Autoplicity ✅ 36,619 4.5
🥉 JEGS 29,598 4.5
4 MAPerformance 4,787 4.7
5 Euro Partstar 4,294 4.9
6 Parts Synergy, Inc. 4,120 4.0
7 SUPER SHOPS 2,596 4.7
8 MOORE PARTS SOURCE 2,258 4.6
9 Speedmaster USA 775 4.3
10 Performance-Products 583 4.6
View or download top Automotive Replacement Engine Main Bolts & Studs seller & rating report
PowerToolReplacementParts [61485] Autoplicity ✅ [36619] JEGS [29598] MAPerformance [4787] Euro Partstar [4294] Parts Synergy, Inc. [4120] SUPER SHOPS [2596] MOORE PARTS SOURCE [2258] Speedmaster USA [775] Performance-Products [583] PowerToolReplacementParts 42% Autoplicity ✅ 25% JEGS 20% MAPerformance 3% Euro Partstar 3% Parts Synergy, Inc. 3% SUPER SHOPS 2% MOORE PARTS SOURCE 2% Speedmaster USA 1% Performance-Products 0%

[Get] Automotive Replacement Engine Main Bolts & Studs 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 Engine Main Bolts & Studs 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 Engine Main Bolts & Studs to buy for new September 2026?

CherryPicks’s Methodology for Evaluating Automotive Replacement Engine Main Bolts & Studs

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 290 of Automotive Replacement Engine Main Bolts & Studs reviews based on our selection criteria. It helped us shortlist the top qualified and rated Automotive Replacement Engine Main Bolts & Studs for Replacement Parts, We found that most customers choose Automotive Replacement Engine Main Bolts & Studs with an average price of $57.68, and the top brands are Dorman, Honda, ARP, Xotic Performance And Part Synergy

Then our expert-level editors reviewed all those quality items and selected the top 30 Automotive Replacement Engine Main Bolts & Studs for you, We have researched hundreds of sellers and picked the top sellers for Replacement Parts, including Amazon Resale, PowerToolReplacementParts, Autoplicity ✅, JEGS, MAPerformance, Euro Partstar, Parts Synergy, Inc., SUPER SHOPS, MOORE PARTS SOURCE, Speedmaster USA, Performance-Products And FastCatMachine. The Empi 8mm Deluxe Engine Hardware Kit, Compatible... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 28 consumers with an average rating of 4.5.

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 Engine Main Bolts & Studs to buy.


Written By Craig Hill

Christian Buccho is a mechanic in love with automotive repairs. He will be sharing his experience with us an automotive repairer over the years. He will not only provide us with informative articles, he would also be providing us with hands-on reviews on automotive parts.