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Harley Davidson Bolt Size Chart: An Experienced Guide for Motorcycle Enthusiasts

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Harley-Davidson motorcycles are known for their iconic look and powerful engines. However, when it comes to maintaining or repairing these bikes, it’s important to understand the various bolt sizes used in their construction. This is where the Harley Davidson Bolt Size Chart comes in handy.

The Harley Davidson Bolt Size Chart provides detailed information on the different bolt sizes used in Harley-Davidson motorcycles. This information is crucial for mechanics and enthusiasts alike, as it streamlines the process of assembly, disassembly, and maintenance. With this chart, one can easily identify the correct bolt size for a particular component, ensuring that the bike is assembled correctly and safely.

Whether you’re a seasoned mechanic or a novice enthusiast, the Harley Davidson Bolt Size Chart is an essential tool for anyone working on a Harley-Davidson motorcycle. By understanding the various bolt sizes used in these bikes, you can ensure that your bike is assembled correctly and safely, and that it performs to its full potential.

Understanding Bolt Sizes

When it comes to maintaining a Harley Davidson motorcycle, it’s important to have a good understanding of the different bolt sizes and types used throughout the bike. In this section, we will go over the basics of bolt sizes and how to interpret them.

Bolt Diameter and Length

Bolt diameter and length are two important measurements that need to be taken into account when selecting the right bolt for a particular job. Bolt diameter is measured in inches or millimeters and is the thickness of the bolt shaft. The length of a bolt is also measured in inches or millimeters and is the distance from the bottom of the bolt head to the end of the shaft.

Thread Size and Pitch

Thread size and pitch are also important measurements to consider when selecting a bolt. Thread size refers to the diameter of the screw thread and is measured in inches or millimeters. Thread pitch, on the other hand, is the distance between the threads and is measured in threads per inch or millimeters per thread.

Bolt Types and Their Uses

There are several different types of bolts used on a Harley Davidson motorcycle, each with its own specific purpose. Some of the most common types of bolts include hex bolts, allen head bolts, breather bolts, and torx bolts.

Hex bolts are the most commonly used bolts on a Harley Davidson motorcycle. They have a hexagonal head and are tightened or loosened using a wrench or socket.

Allen head bolts have a hexagonal socket in the head and are tightened or loosened using an allen wrench.

Breather bolts are used to attach the air cleaner assembly to the engine crankcase. They have a unique design that allows air to flow through the engine while preventing debris from entering.

Torx bolts are similar to allen head bolts, but have a star-shaped socket in the head instead of a hexagonal socket. They are commonly used in areas where a regular wrench or socket cannot fit.

By understanding bolt sizes and types, Harley Davidson owners can ensure that they are using the right bolts for the job and maintaining their motorcycle in top condition.

Harley-Davidson Model Specifications

Harley-Davidson motorcycles come in various models, each with its own unique bolt size specifications. Here are the bolt size specifications for some of the most popular Harley-Davidson models:

Touring Models

Touring models, also known as “dressers,” are designed for long-distance touring and feature large engines, comfortable seats, and ample storage space. The following are the bolt size specifications for touring models:

ModelProduction YearBolt Size
Road King1994-20227/16-14 x 1-1/4″
Street Glide2006-20227/16-14 x 1-1/4″
Electra Glide1965-20227/16-14 x 1-1/4″

Softail Models

Softail models feature a hidden rear suspension system that gives the bike a classic “hardtail” look while still providing a comfortable ride. The following are the bolt size specifications for Softail models:

ModelProduction YearBolt Size
Heritage Softail1986-20221/2-13 x 1-1/4″
Fat Boy1990-20221/2-13 x 1-1/4″
Softail Deluxe2005-20221/2-13 x 1-1/4″

Dyna Models

Dyna models feature a more aggressive riding position and a stiffer suspension system for better handling and performance. The following are the bolt size specifications for Dyna models:

ModelProduction YearBolt Size
Super Glide1971-20177/16-14 x 1″
Low Rider1977-20177/16-14 x 1″
Wide Glide1980-20177/16-14 x 1″

Trike Models

Trike models feature three wheels instead of two, providing added stability and safety. The following are the bolt size specifications for trike models:

ModelProduction YearBolt Size
Tri Glide Ultra2009-20227/16-14 x 1-1/4″

It is important to note that bolt sizes may vary depending on the specific year and model of the Harley-Davidson motorcycle. Always refer to the owner’s manual or consult with a professional mechanic to ensure that you are using the correct bolt size for your bike.

Bolt Size Charts by Model

When it comes to Harley Davidson motorcycles, it’s essential to know the right bolt size for your bike. Each model has its own unique bolt size chart, which can help you find the right fitment for your bike. Here are the bolt size charts by model:

Chart for Touring Models

Touring models are some of the most popular Harley Davidson bikes on the market, and they require specific bolt sizes. The bolt size chart for touring models includes bolt sizes such as 1/4″-20, 5/16″-18, 3/8″, and more. It’s important to compare the bolt sizes to ensure you’re getting the right fitment for your bike.

Chart for Softail Models

Softail models are another popular type of Harley Davidson bike, and they require specific bolt sizes as well. The bolt size chart for Softail models includes bolt sizes such as 1/4″-20, 5/16″-18, and 3/8″. It’s important to compare the bolt sizes to ensure you’re getting the right fitment for your bike.

Chart for Dyna Models

Dyna models are known for their power and performance, and they require specific bolt sizes to function correctly. The bolt size chart for Dyna models includes bolt sizes such as 1/4″-20, 5/16″-18, and 3/8″. It’s important to compare the bolt sizes to ensure you’re getting the right fitment for your bike.

Chart for Trike Models

Trike models are unique in their design, and they require specific bolt sizes to function correctly. The bolt size chart for Trike models includes bolt sizes such as 1/4″-20, 5/16″-18, and 3/8″. It’s important to compare the bolt sizes to ensure you’re getting the right fitment for your bike.

Overall, the Harley Davidson bolt size chart provides essential information for motorcycle enthusiasts and mechanics alike. By using the chart, you can streamline the process of assembly, disassembly, and maintenance, ensuring your bike functions correctly. Always remember to compare the bolt sizes and fitment information to ensure you’re getting the right size for your Harley Davidson bike.

Maintenance and Replacement

Regular maintenance and replacement of bolts is crucial for the safety and longevity of Harley Davidson motorcycles. In this section, we’ll cover routine bolt checks, replacing damaged bolts, and upgrading bolts for performance.

Routine Bolt Checks

Harley Davidson owners should perform routine bolt checks as part of their regular maintenance schedule. Checking for loose or missing bolts can prevent serious damage and accidents. It’s recommended to check bolts every 5,000 miles or at least once a year.

To perform a bolt check, Harley Davidson owners should consult their service manual to identify which bolts need to be checked and what torque specifications are required. Using a torque wrench, the bolts should be checked for tightness and any that are loose should be tightened to the recommended torque specification.

Replacing Damaged Bolts

If a bolt is damaged or stripped, it should be replaced immediately. Damaged bolts can compromise the safety and performance of the motorcycle. Harley Davidson owners should always use genuine Harley Davidson replacement bolts to ensure proper fit and function.

When replacing bolts, it’s important to consult the service manual for the correct torque specification and to use a torque wrench to ensure the bolt is tightened to the proper torque. Using a thread locker can also help prevent bolts from coming loose.

Upgrading Bolts for Performance

Harley Davidson owners who are looking to upgrade their motorcycle’s performance may consider upgrading their bolts. High-performance bolts can provide increased strength and durability, which can improve the bike’s overall performance.

When upgrading bolts, it’s important to consult with a Harley Davidson mechanic or refer to the service manual to ensure the new bolts are compatible with the motorcycle. It’s also important to follow the manufacturer’s recommended torque specifications to ensure proper installation.

In summary, routine bolt checks, replacing damaged bolts, and upgrading bolts for performance are important aspects of maintaining and servicing a Harley Davidson motorcycle. Following the service manual and using genuine Harley Davidson replacement bolts can help ensure the safety and longevity of the motorcycle.

Installation and Removal

Proper Installation Techniques

When it comes to installing bolts on a Harley Davidson, it is important to follow the service manual procedures to ensure that the installation is done correctly. The manual provides detailed instructions on how to install each bolt, including the torque specifications and the sequence in which the bolts should be tightened.

Before starting the installation process, it is important to ensure that the wrench being used fits the bolt head properly. Using an ill-fitting wrench can cause damage to the bolt head, making it difficult to remove in the future.

Safe Removal Practices

When removing bolts from a Harley Davidson, it is important to use the correct tools and techniques to avoid causing damage to the surrounding components. Using the wrong tool or technique can result in stripped bolt heads, which can be difficult to remove and may require expensive repairs.

To remove bolts safely, it is recommended to use a wrench that fits the bolt head properly. The wrench should be turned slowly and steadily, applying constant pressure until the bolt is loosened. If the bolt is difficult to remove, it is important to stop and assess the situation before applying more force.

Tools Required for Bolt Handling

When handling bolts on a Harley Davidson, it is important to have the right tools to ensure safe and efficient installation and removal. Some of the essential tools include:

  • Wrenches of various sizes to fit different bolt heads
  • Torque wrench to ensure that bolts are tightened to the correct specifications
  • Socket set for removing bolts in hard-to-reach areas
  • Threadlocker to prevent bolts from loosening over time

It is important to ensure that all tools are in good condition and are used properly to avoid causing damage to the bolts or surrounding components.

In summary, experienced Harley Davidson riders know that proper installation and removal techniques are essential for maintaining the safety and performance of their bikes. By following the service manual procedures and using the right tools, riders can ensure that their bolts are installed and removed safely and efficiently, without risking death or serious injury.

Specialized Bolt Applications

Harley Davidson motorcycles are built to withstand the rigors of the road, and the bolts used in their construction must be up to the task. Some specialized bolt applications are critical for the proper functioning of the motorcycle. The following subsections describe the specialized bolt applications used in different parts of the Harley Davidson motorcycle.

Frame and Suspension System

The frame and suspension system of a Harley Davidson motorcycle require specialized bolts to ensure proper alignment and stability. The rear axle bolt is a critical component that holds the rear wheel in place and must be tightened to the manufacturer’s specifications. The front axle bolt is also essential for proper alignment of the front wheel and must be torqued correctly.

Engine and Transmission Bolts

The engine and transmission of a Harley Davidson motorcycle require specialized bolts to ensure proper alignment and stability. The transmission bolts hold the transmission in place and must be tightened to the manufacturer’s specifications. The stem assembly bolts hold the stem assembly in place and must be torqued correctly.

Handlebars and Control Mounts

The handlebars and control mounts of a Harley Davidson motorcycle require specialized bolts to ensure proper alignment and stability. The handlebar bolts hold the handlebars in place and must be tightened to the manufacturer’s specifications. The control mount bolts hold the control mounts in place and must be torqued correctly.

In conclusion, specialized bolt applications are critical for the proper functioning of a Harley Davidson motorcycle. The frame and suspension system, engine and transmission bolts, and handlebars and control mounts all require specialized bolts to ensure proper alignment and stability. It is essential to follow the manufacturer’s specifications for tightening these bolts to ensure a safe and enjoyable ride.

Accessorizing and Customizing

Customizing a Harley-Davidson motorcycle is a great way to make it stand out from the crowd. However, choosing the right bolts for custom jobs is crucial to ensure a perfect fit and avoid any potential issues.

Choosing the Right Bolts for Custom Jobs

When customizing a Harley-Davidson, it is important to ensure that the bolts used are of the correct size and length. Using the wrong bolts can lead to issues such as stripped threads or even worse, parts coming loose while riding.

To ensure a perfect fit, it is recommended to consult the Harley-Davidson parts and accessories section or visit a Harley-Davidson dealer for advice. They can provide a list of recommended bolts and kits for specific custom jobs.

Aesthetic Bolt Enhancements

Bolt enhancements can also be used to add a touch of style to a Harley-Davidson. For example, chrome or black oxide bolts can be used to match the color scheme of the motorcycle.

It is important to note that while aesthetic bolt enhancements are a great way to add some personality to a motorcycle, they should not compromise the safety or functionality of the motorcycle. Always ensure that the bolts used are of the correct size and length for the job.

In conclusion, when customizing a Harley-Davidson, it is important to choose the right bolts for the job to ensure a perfect fit and avoid any potential issues. Consult the Harley-Davidson parts and accessories section or visit a Harley-Davidson dealer for advice. Aesthetic bolt enhancements can also be used to add some personality to a motorcycle, but should not compromise safety or functionality.

Safety and Compliance

When it comes to working on a Harley-Davidson motorcycle, safety should always be the top priority. Using the correct bolt size is essential for safety and performance. Using the wrong size bolt can result in serious injury or even death. Therefore, it is important to follow the manufacturer’s recommendations when it comes to bolt size and torque specifications.

The Harley-Davidson service manual provides detailed instructions on the proper torque specifications for each bolt on the motorcycle. It is important to follow these specifications to ensure that the bolts are tightened to the correct amount of torque. Over-tightening or under-tightening bolts can lead to serious problems, including stripped threads and engine damage.

If you are unsure about the proper torque specifications for a particular bolt, it is always best to consult with a Harley-Davidson dealer. They have the expertise and experience to provide you with the correct information. It is also important to use high-quality bolts that are designed specifically for use on a Harley-Davidson motorcycle.

In conclusion, when it comes to working on a Harley-Davidson motorcycle, safety should always be the top priority. Using the correct bolt size and torque specifications is essential for ensuring that the motorcycle is safe and reliable. By following the manufacturer’s recommendations and consulting with a Harley-Davidson dealer when necessary, you can ensure that your motorcycle is in top condition and ready for the road.

Parts and Ordering

Identifying Part Numbers

Experienced Harley-Davidson riders know that identifying part numbers is crucial to ordering replacement bolts. The Harley Davidson Bolt Size Chart provides detailed information on the various bolt sizes used in Harley Davidson motorcycles, which streamlines the process of assembly, disassembly, and maintenance. The chart includes information on the diameter, thread pitch, and length of each bolt size.

In addition to the chart, riders can also identify part numbers by inspecting the bolts on their motorcycle. The part number is typically stamped on the head of the bolt or on the underside of the bolt head. Riders can also consult their owner’s manual or contact a Harley-Davidson dealership for assistance in identifying part numbers.

Ordering Replacement Bolts

Ordering replacement bolts is a simple process once the correct part number has been identified. Harley-Davidson dealerships carry a wide range of replacement bolts, nuts, and service parts for all Harley Davidson models. Riders can also order replacement bolts online from various retailers.

When ordering replacement bolts, riders should ensure that they are ordering the correct size and type of bolt for their motorcycle. The Harley Davidson Bolt Size Chart can be used as a reference to ensure that the correct bolt size is ordered. Riders should also ensure that they are ordering bolts made from high-quality materials to ensure that they are durable and long-lasting.

In conclusion, identifying part numbers and ordering replacement bolts is an essential part of maintaining a Harley Davidson motorcycle. By using the Harley Davidson Bolt Size Chart and consulting with a dealership or online retailer, riders can ensure that they are ordering the correct bolts for their motorcycle and keeping it in top condition.