Best Car Connecting Rod Bolts of 2025

Joseph Prokop Avatar
Joseph Prokop
Last Updated: 11 Feb 2025

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Car connecting rod bolts are essential components in the engine of a car. They connect the connecting rod and the crankshaft, ensuring that the engine runs smoothly and efficiently. These bolts are made of high-quality materials and are designed to withstand the high levels of stress and pressure that occur within the engine. They are available in a range of sizes and styles to fit different types of cars and engines. Investing in high-quality connecting rod bolts can help to improve the performance and reliability of your car, ensuring that it runs smoothly and safely on the road.

At a Glance: Our Top Picks

febi bilstein Connecting Rod Bolt, 52 mm Cover #TOP 1
febi bilstein Connecting Rod Bolt, 52 mm
ftb score rating icon 9.8
Ford Racing 8.8" Ring Gear Bolt Set Cover #TOP 2
Ford Racing 8.8" Ring Gear Bolt Set
ftb score rating icon 9.7
ARP 206-6008 Vehicle Specific Rod Bolt Kit Cover #TOP 3
ARP 206-6008 Vehicle Specific Rod Bolt Kit
ftb score rating icon 9.5

Top 10 Car Connecting Rod Bolts

#TOP 1

febi bilstein Connecting Rod Bolt, 52 mm

01964
schwarz
febi bilstein Connecting Rod Bolt, 52 mm Cover
febi bilstein 01964 Connecting Rod Bolt, pack of one, schwarz

The febi bilstein Rod Bolt is an original spare part manufactured in Germany, ensuring high quality and reliability. It is crucial to verify compatibility with your vehicle using the identification provided. With a length of 52 mm and an outside thread size of M9 x 1, this bolt is designed for secure fastening using an external 12-point hex bit. Weighing only 0.03 kg, it offers a lightweight solution for your car’s maintenance needs, making installation and handling much easier for you.

What We Like
High-quality German manufacturing
Lightweight and easy to handle
Compatible with various Mercedes models
Secure fastening with hex bit
#TOP 2

Ford Racing 8.8" Ring Gear Bolt Set

M-4216-A300
Ford Racing 8.8" Ring Gear Bolt Set Cover
Ford Racing M-4216-A300 8.8" Ring Gear Bolt Set, (Pack of 10)

The Ford Racing Bolt Set is an excellent choice for those seeking reliable performance in their vehicle. As a trusted industry leader, Ford Racing provides high-quality components that can significantly enhance your car's performance. These bolts are specifically designed for connecting rods, ensuring a secure fit that can withstand the rigours of racing and everyday driving. With great performance capabilities, you can trust these bolts to deliver the reliability and durability you need for your automotive projects.

What We Like
Trusted brand quality
Enhances vehicle performance
Durable and reliable
Specifically designed for cars
#TOP 3

ARP 206-6008 Vehicle Specific Rod Bolt Kit

ARP
206-6008
ARP 206-6008 Vehicle Specific Rod Bolt Kit Cover
ARP 206-6008 Connecting Rod Bolt Kit

The ARP Rod Bolt Kit is designed specifically for your vehicle, ensuring a perfect fit. With package dimensions of 1.777 H x 24.384 L x 14.478 W centimetres, it is compact yet robust. Weighing only 0.400 pounds, it adds minimal heft to your car components. This product is proudly made in the United States, reflecting high-quality manufacturing standards. By opting for this kit, you can enhance the performance and reliability of your engine's connecting rods.

What We Like
Vehicle specific fit
Compact dimensions
Lightweight construction
High-quality US manufacturing
#TOP 4

ARP 129-0902 Vehicle Specific Bellhousing Bolt Kit

ARP
129-0902
Chromoly
ARP 129-0902 Vehicle Specific Bellhousing Bolt Kit Cover
ARP 129-0902 Bellhousing Bolt Kit

The ARP Bellhousing Bolt Kit is designed to provide a reliable and secure connection for your vehicle's bellhousing. With package dimensions of 15.24 H x 1.27 L x 10.16 W centimetres and a lightweight design of 0.204 kilograms, it is easy to handle and install. Made in the USA, this kit ensures high-quality manufacturing standards. Being vehicle specific, it guarantees a perfect fit, giving you peace of mind while enhancing the performance of your vehicle.

What We Like
Vehicle specific fit
Lightweight design
High-quality manufacturing
Easy to handle
#TOP 5

ARP Bolt Kit for BMW Mini Cooper N12/14

ARP
201-6305
ARP Bolt Kit for BMW Mini Cooper N12/14 Cover
ARP 201-6305 Bolt Kit (BMW Mini Cooper N12/14 rod)

The ARP Bolt Kit is a high-quality auto part designed specifically for the BMW Mini Cooper N12/14 connecting rods. Measuring 9.0 inches long, 6.0 inches wide, and 0.5 inches high, it is compact and easy to handle. Weighing just 0.36 lbs, this product is lightweight, making installation manageable for you. Manufactured in the United States, it assures you of dependable quality and performance. With this bolt kit, you can enhance the durability and reliability of your vehicle's engine components.

What We Like
High-quality construction
Lightweight and compact
Designed for specific models
Manufactured in the USA
#TOP 6

Omix-Ada Hardtop Bolt for Wrangler TJ and JK/U

OMIX
12304.29
Black
1 Count (Pack of 1)
Omix-Ada Hardtop Bolt for Wrangler TJ and JK/U Cover
Omix-Ada 12304.29 Hardtop Bolt for Wrangler TJ and JK/U (M8x1.25)

The Omix-Ada Hardtop Bolt is designed with an OE style, ensuring that it matches the original equipment specifications of your Wrangler TJ and JK/U. This direct fit feature saves you time and effort, as you won't need to make modifications during installation. The bolt is built to provide a reliable connection, making it essential for securing your hardtop. Additionally, it is an OE part, number 6506826AA, which guarantees compatibility and quality for your vehicle.

What We Like
OE style for perfect fit
Direct installation with no modifications
Reliable connection for hardtop
Compatible with specific Wrangler models
#TOP 7

ARP 240-7301 Torque Converter Fasteners

ARP
240-7301
Black
ARP 240-7301 Torque Converter Fasteners Cover
ARP 240-7301 Torque Converter Bolts

The ARP Torque Converter Bolts are designed to provide exceptional strength and reliability for your vehicle. With a remarkable rating of 200,000 PSI, these fasteners ensure that you no longer have to worry about shearing your torque converter bolts during use. Their custom design offers the optimum grip, which enhances the overall performance of your engine. Additionally, the under head length of .450 and a thread size of 5/16-24 make these bolts suitable for various applications, ensuring a secure fit every time.

What We Like
Super strong fastener
Optimum grip design
Rated at 200,000 PSI
Includes hardened washer
#TOP 8

ICT Billet 4L60E 2004R Transmission Bolt Set

551683
Natural
ICT Billet 4L60E 2004R Transmission Bolt Set Cover
4L60e 2004R PAN BOLT SET Trans Transmission Chevy 700R4 200R4 kit 16 pc bolts 551683

The ICT Billet Bolt Set offers high-quality, heavy-duty bolts made in the USA. With a grade 10.9 strength rating, these bolts provide excellent durability for your transmission needs. The zinc coating ensures long-lasting corrosion protection, giving you peace of mind that your components will remain in good condition. Additionally, the flanged heads eliminate the need for washers, making installation easier and more efficient. This set is designed specifically for the 4L60E and 2004R models, ensuring a perfect fit for your vehicle.

What We Like
Made in the USA
High strength, durable bolts
Corrosion protection
No washers needed
#TOP 9

ARP 216-6301 Rod Bolt Kit for Renault Clio

ARP
216-6301
Silver
ARP 216-6301 Rod Bolt Kit for Renault Clio Cover
ARP 216-6301 Rod Bolt Kit for Renault Clio M9 16-Valve

The ARP Rod Bolt Kit is designed specifically for the Renault Clio M9 16-Valve, ensuring a perfect fit for your vehicle. With part number ARP-216-6301, this kit includes high-quality ARP2000 connecting rod bolts, which enhance the durability and performance of your engine. Weighing just 0.5 pounds, it is lightweight yet robust, making installation straightforward. By using this kit, you can improve the reliability of your engine's performance, providing peace of mind during your drives.

What We Like
Vehicle specific fit
High-quality materials
Lightweight design
Enhances engine performance
#TOP 10

ARP 154-1001 High Performance Cam Bolt Kit

ARP
154-1001
ARP 154-1001 High Performance Cam Bolt Kit Cover
ARP 154-1001 High Performance Cam Bolt Kit

The ARP Cam Bolt Kit offers a solution to your camshaft timing concerns. With a remarkable strength rating of 170,000 PSI, it outperforms standard Grade 8 hardware, providing you with peace of mind during use. The 5/8 inch socket size and 3/8-16 diameter/thread size make installation straightforward, ensuring you can easily fit it into your vehicle. Additionally, the reduced socket head size allows for quick removal when needed, while the oversized bolt head flange enhances cam button retention, contributing to a more reliable performance.

What We Like
High strength rating
Easy installation
Quick removal
Improved cam button retention
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is a connecting rod bolt?

Connecting rod bottom end bolts keep the two halves of the bottom end bearing together. These bolts are subjected to complex nature of stress as follows: Tensile Stress: Tightening of nuts stretches the bolts and subjects them to tensile stress, which helps keep the two components together under tension compression.

2. What are rod bolts?

Rod bolts used in our own high performance racing rod applications are made also in house from two main materials. That gives to the thread the maximum strength required for the racing rod application. ...

3. How are the connecting rod bolts secured?

Connecting rod bolt nuts are usually secured to the bolts by cotter pins; thus the need for alignment between slots in the nuts and the hole in the bolt. The maximum amount of tightening to get this alignment is something less than one "hex" of the nut.

Editor's Notes

During our car connecting rod bolt research, we found 231 car connecting rod bolt products and shortlisted 10 quality products. We collected and analyzed 5,279 customer reviews through our big data system to write the car connecting rod bolts list. We found that most customers choose car connecting rod bolts with an average price of £15.46.

The car connecting rod bolts are available for purchase. We have researched hundreds of brands and picked the top brands of car connecting rod bolts, including febi bilstein, Ford, ARP, OMIX, ICT Billet.

Written by
Joseph Prokop Avatar

Joseph is a seasoned writer who's also passionate about automotive. His passion for automotive care and maintenance fuels his drive for more knowledge in the field. He currently resides in Middlesbrough, where he finds time to write informative contents on automotive. His automotive related articles are quite popular in journals around the world. Joseph continues to use his wealth of experience in the industry to create helpful guides on automotive.