Are 3/16 and 4.75 brake lines the same?
No, 316 and 4.75 brake lines are not the same. They refer to different types of brake lines used in vehicles. The key difference lies in the diameter and material composition of the lines.
Understanding Brake Line Types
Brake lines are essential components in a vehicle's braking system, responsible for transmitting hydraulic pressure from the master cylinder to the brake calipers or wheel cylinders. The two most common types of brake lines are 316 and 4.75.
316 Brake Lines
316 brake lines are made of stainless steel, a durable and corrosion-resistant material. They typically have a diameter of 3/16 inches (or 0.1875 inches) and are commonly used in larger vehicles, such as trucks and SUVs. The 316 designation refers to the specific stainless steel alloy used in the manufacturing process. 1
4.75 Brake Lines
4.75 brake lines, on the other hand, have a smaller diameter of 4.75 millimeters (approximately 0.187 inches) and are typically made of copper or steel. These lines are commonly used in smaller vehicles, such as cars and motorcycles. The 4.75 designation refers to the diameter of the line in millimeters. 2
Key Differences
- Diameter: 316 brake lines have a diameter of 3/16 inches, while 4.75 brake lines have a diameter of 4.75 millimeters (approximately 0.187 inches).
- Material: 316 brake lines are made of stainless steel, while 4.75 brake lines are typically made of copper or steel.
- Application: 316 brake lines are commonly used in larger vehicles, such as trucks and SUVs, while 4.75 brake lines are typically used in smaller vehicles, such as cars and motorcycles.
It's important to note that the choice of brake line type depends on the specific requirements of the vehicle and the braking system. Consult your vehicle's manufacturer or a qualified mechanic to ensure you use the correct brake line type for your vehicle.
Which brake line is best suited for automotive brake line replacement?
Copper-nickel alloy lines not only meet the pressure ratings and requirements for passenger vehicle applications but will not rust or corrode even in the harshest “rust belt” environments. Additionally, Copper-nickel bends and flares easily, and can be twisted around the innards of a car by hand.
What is the diameter of a 3 16 brake line?
The two most common brake lines found are 3/16"/4.75mm and 1/4". The smaller size is 3/16"/4.75mm brake line, CNF-3; and the larger size is 1/4", CNF-4.
Should I use a 3 16 or 1/4 brake line?
Enough fluid has to move easily to allow the input work at the master to be translated to caliper. So, since smaller is better, but we have to allow for volume, 3/16'' brake lines have been proven effective. 1/4'' is just giving energy away to the atmosphere that is better used on the caliper.
Can I replace a 3/16 brake line with 1/4?
Comments Section NO. If it has 1/4 line, replace with 1/4 line. You shouldn't substitute with 3/16ths. Blake line size is going to effect the amount of fluid delivered to the calipers. Smaller line equals less fluid for your brake travel.
Can you use copper tubing to replace brake lines?
Steel brake lines can be replaced with copper ones – TRUE
After disproving myths related to brake lines, we would like to show that copper lines can be used in brake systems. They are the standard value replacement of steel lines if they meet all the aspects listed above and the technical requirements.
Are 3/16 and 4.75 brake lines the same?
3/16" (4.75mm): This is the most common size used in most passenger vehicles. It is often referred to as the "universal size" for brake lines. 1/4" (6mm): Typically found in trucks and larger vehicles, this size can handle higher pressure and is used in applications where the braking system requires more robust lines.
What is bigger, 3 16 or 1/4?
But now with the same denominator. We're just going to compare the numerators. And 4 is larger than 3 so 4 16 that's larger than 3 16. And therefore one-fourth that is larger than 3 16..
What are the two types of brake line fittings?
The main types include double flare, bubble flare, and AN fittings. Each type is designed for different applications and connections within the brake system.
How do I know my brake line fitting size?
Look at the master cylinder where the lines are near each other to see if there are two sizes of tubing. You can also use a 1/4" open end wrench to gauge your lines. It will fit easily onto 1/4" line and will bang back and forth on 3/16" line.
Are brake lines interchangeable?
No, some vehicles have UNF thread forms, some have SAE and these days most have Metric. Some hydraulic lines are a different diameter from others. Even the ends of the brake lines can be a different shape with bell shaped or rounded ends.
