Skip to content
20+ Years of Alcon Experience. FREE SHIPPING on all Brake Kits (USA) - Open M-F 8-5
20+ Years of Alcon Experience. FREE SHIPPING on all Brake Kits (USA) - Open M-F 8-5
Alcon Brakes maintenance parts fits T Bobbin A

Product Features

Origin Guarantee Authorized Alcon Brakes Dealer
Factory Warranty Factory Warranty
Heat Resistant Icon Heat Resistant Product
Adhesive or Lock Icon Threadlock recommended
Corrosion Icon Corrosion Resistance
Street Street Approved
Sporting Sport Driving Use
Street/Track Dual Purpose Street/Track
Track/Race Track/Race Approved
Armored/Offroad Armored, Offroad & Heavy Duty Rated

T-Bobbin (A), Rotor Attachment Hardware Kit

by Alcon Brakes
SKU PRH.TA.8.CK
$182.50 USD - $270.00 USD
$182.50 USD
$182.50 USD - $270.00 USD
$182.50 USD
Count: 16 Bolts (For 8 bolt rotors)
Lead Time: Average 1-2 Days
Ask a question

PRODUCT INFORMATION

T-Bobbin (A) rotor attachment complete hardware kit for floating 2-piece rotors

  • Corrosion resistant, allows secure mounting, and smooth expansion and contraction throughout heat cycles
  • This complete kit includes enough hardware for two rotors.

-Includes:

  • 1/4 UNF aerospace grade Geomet coated bolts
  • Locking nuts
  • McLaren Spring Clips
  • "U" clips
  • T-Bobbins (A)

-Assemble torque specs: 10.5 lbf-ft / 14 Nm

Replacement of Alcon "Bobbin drive system with bolt" hardware

We recommend using new hardware every time when replacing rotor rings. If there is no visible wear, bobbins and spring clips can be reused. A bolt kit that includes bolts, locking nuts, and washers is available for purchase.

Replacement of Alcon "Bobbin drive system with bolt" hardware

Assembling / Re-assembling Instructions

:
Step 1: Disassemble the used 2-piece rotor. Discard used bolts, locknuts, and washers. Inspect remaining hardware for wear. Bobbins and McLaren spring clips may generally be re-used more than once if there is no visible wear.


Step 2: Inspect used aluminum hat and rotor surface for any damage or wear. Clean aluminum hat and rotor surface to remove any contaminants and ensure the aluminum hat is flush against the rotor.


Step 3: Locate “U” clips into hat slots. Locate bobbins into hat slots. Align mounting holes of the hat with mounting holes of the rotor, and locate onto rotor. Inspect and ensure all bobbins are located properly in the holes of the rotor.


Step 4: Apply a small amount of high temperature threadlocker to cover 2-4 threads at the end of all bolts (Recommended: Loctite 243 or equivalent).


Step 5: Holding the aluminum hat onto the rotor, lift the assembly into vertical position. Locate the McLaren spring clips onto the wheel facing surface of the aluminum hat.
Note: The flanged side of the spring clip should be facing the center of the rotor.


Step 6: Assemble the bolts from the outside of the rotor, through the McLaren spring clips & bobbins. Locate washers onto the bolts from the inside of the rotor. Loosely assemble the locknuts (hand-tight).


Step 7: Inspect prior to tightening to ensure all components are installed properly. Tighten and torque all lock nuts in the sequence pattern shown below to 14 Nm / 10.5 lbf-ft

SKU: PRH.TA.8.CK

Customers rate us 4.9/5 based on 188 reviews.
Free Shipping

Free on all brake kits to the continental USA

Official Alcon Distributor

Expert Advice, Products, Support

Text or Call

+1 (630) 360-2548

Chat With Us

Click "Assistance" below during business hours.

Frequently asked questions on Alcon Brakes

Why buy from Alconkits.com?

Can I buy Alcon Brakes and parts somewhere else?

Yes, some general automotive retailers and online marketplaces may list Alcon brake kits or individual components. However, Alcon brake systems are engineered, vehicle-specific systems, not commodity parts.

When purchased from Alconkits.com, you are buying directly from a specialist Alcon distributor with deep application knowledge, fitment validation experience, and long-term service support. This ensures you receive the correct configuration, pad compound guidance, wheel-clearance assistance, and ongoing support throughout the life of the brakes.

Why should I buy this kit from Alconkits.com instead of a retailer like eBay or Amazon, or marketplace?

Alconkits.com specializes exclusively in Alcon brake systems. We are not a general parts reseller.

When you buy from Alconkits.com, you get:

  • Application-specific guidance for heavy trucks like the Ram TRX
  • Fitment advice on your brakes to ensure they clear your wheels with guaranteed compatibility with your vehicle.
  • Wheel-fitment and clearance validation support
  • Pad compound recommendations based on real-world use (street, off-road, towing, track)
  • Access to replacement pads, rotors, seals, and service parts long after purchase
  • Lifetime technical support from Alcon brake specialists

Most marketplaces can sell a box. We support the entire brake system lifecycle for as long as you own it.

What makes Alcon big brake kits different from other aftermarket brake options?

Alcon brake kits are engineered systems, not assembled collections of parts.

Each kit is designed with:

  • Vehicle-specific caliper piston sizing
  • High-mass rotors for thermal capacity on heavy vehicles
  • Motorsport-grade materials and manufacturing processes
  • Compatibility with factory ABS, traction control, and master cylinder

This results in more consistent pedal feel, better heat management, and superior durability compared to budget or generic big brake kits.

Are Alcon brake parts “one-size-fits-all”?

No. Alcon brake kits are application-specific.

Vehicle weight, intended use, rotor size, caliper configuration, and pad compound all matter—especially on high-performance cars and trucks. Selecting the wrong configuration or pad compound can reduce braking performance, increase noise, or accelerate wear.

This is why buying from the specialist distributor, Alconkits.com, matters.

What type of driver is T-Bobbin (A), Rotor Attachment Hardware Kit for?

Manufactured by Alcon Brakes, we recommend this as being suitable for the following driving styles:

  • Street
  • Sporting
  • Street/Track
  • Armored/OffRoad
  • Track/Race

After purchase support questions.

What happens if I need pads, rotors, or service parts in the future?

This is THE question to ask. Alcon brake systems are fully serviceable.

When you purchase from Alconkits.com, you have long-term access to:

  • Replacement brake pads
  • Replacement rotors
  • Seal kits and service components
  • Technical guidance for maintenance and service intervals

This is a major advantage over marketplace sellers who may not support the product after the sale. We know what fits, we stock it, and we don't sell you parts you don't need.

Why does this Alcon brake kit cost more than stock brakes or some aftermarket options?

Alcon brake kits are built to deliver higher performance, durability, and consistency than OEM or budget aftermarket brakes.

The cost reflects:

  • Larger, higher-mass rotors for heat control
  • Precision-machined multi-piston calipers
  • Motorsport-grade materials and testing
  • Long-term serviceability and support

This is not a cosmetic upgrade—it is a functional braking system designed for demanding use.

Is Alconkits.com an authorized Alcon distributor?

Yes. Alconkits.com is an authorized and specialist Alcon distributor with one of the largest Alcon-focused catalogs and knowledge bases available.

Our team has extensive experience supporting Alcon brake systems across trucks, SUVs, performance cars, and specialized applications.

What kind of support is available if I have questions before or after purchase?

Alconkits.com provides lifetime technical support for Alcon brake systems purchased through us.

Our support resources include:

  • Direct access to Alcon brake experts
  • Extensive technical articles and guides
  • Fitment and configuration assistance
  • Long-term ownership and service support

Brakes are a critical system—our goal is to make sure you get it right.

How do I get support for Alcon Brakes

We make it easy - connect with us the way its convenient for you.

  • Call or Text Msg us at 630-360-2548
  • Use the Chat feature on this page.
  • Email us at sales@alconkits.com

TAGS

  • Maintenance Parts
  • bobbin
  • rotor
  • attachment
  • hardware
  • kit
Find your ✔Guaranteed Fit
Search