Dynamic Friction 340-45008 Disc Brake Hardware Kit - Rear
OE Quality 60-Day Returns
Dynamic Friction
 DFC Disc Brake Hardware Kit

Dynamic Friction 340-45008 Disc Brake Hardware Kit - Rear

Brand Dynamic Friction 340-45008
Position Rear
Product line DFC Disc Brake Hardware Kit
Fits Buick and Cadillac · 18 vehicles

Disc brake hardware kit. Replacement hardware for brake service and refresh.

$17.21Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $17.21
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Disc Brake Hardware Kit options

Rear Disc Brake Hardware Kit for Select GM Applications

The Dynamic Friction DFC Disc Brake Hardware Kit, part number 340-45008, is a rear brake service kit for select Buick and Cadillac applications. It is built for drivers servicing rear disc brake components on vehicles such as the Buick Envision, Cadillac XT4, and Buick Regal Sportback.

Key Features

  • Rear disc brake hardware kit for service work
  • Fits select 2018-2026 Buick and Cadillac rear brake applications
  • Application-specific coverage for Buick Envision, Cadillac XT4, and Buick Regal Sportback
  • DFC PREMIUM Hardware Kit designation on select fitments
  • Part number 340-45008 for accurate ordering and lookup

Fitment Details

  • Fits 2023-2026 Buick Envision, rear. DFC PREMIUM Hardware Kit.
  • Fits 2022-2025 Cadillac XT4, rear. DFC PREMIUM Hardware Kit.
  • Fits 2021-2022 Buick Envision, rear. DFC Disc Brake Hardware Kit.
  • Fits 2021 Cadillac XT4, rear. (Silver Calipers); DFC Disc Brake Hardware Kit.
  • Fits 2021 Cadillac XT4, rear. (Red Calipers); DFC Disc Brake Hardware Kit.
  • Fits 2018-2020 Buick Regal Sportback, rear. DFC Disc Brake Hardware Kit.
  • Fits 2019-2020 Cadillac XT4, rear. DFC Disc Brake Hardware Kit.

What This Part Helps Address

  • Rear brake service on a Buick Envision with worn or missing hardware
  • Rear brake maintenance on a Cadillac XT4 during pad or rotor work
  • Brake noise caused by aged or corroded rear hardware
  • Uneven rear brake operation related to degraded service components
  • Fitment lookup for 340-45008 when matching the correct rear application

Installation Notes and Tips

Confirm rear axle fitment, model year, and caliper configuration before ordering. For 2021 Cadillac XT4 applications, verify whether the vehicle uses silver or red calipers. Compare the existing hardware layout to the vehicle-specific listing for Buick Envision, Cadillac XT4, or Buick Regal Sportback before installation.

Quality Assurance

DFC Disc Brake Hardware Kit products are cataloged for direct vehicle-specific application matching. Part number 340-45008 is listed for the rear position on the confirmed Buick and Cadillac fitments shown above.

Related reading

This part fits 18 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2026BuickEnvision—RearDFC PREMIUM Hardware Kit
2025BuickEnvision—RearDFC PREMIUM Hardware Kit
2025CadillacXT4—RearDFC PREMIUM Hardware Kit
2024BuickEnvision—RearDFC PREMIUM Hardware Kit
2024CadillacXT4—RearDFC PREMIUM Hardware Kit
2023BuickEnvision—RearDFC PREMIUM Hardware Kit
2023CadillacXT4—RearDFC PREMIUM Hardware Kit
2022BuickEnvision—RearDFC Disc Brake Hardware Kit
2022CadillacXT4—RearDFC PREMIUM Hardware Kit
2021BuickEnvision—RearDFC Disc Brake Hardware Kit
2021CadillacXT4LuxuryRear(Silver Calipers); DFC Disc Brake Hardware Kit
2021CadillacXT4Premium LuxuryRear(Silver Calipers); DFC Disc Brake Hardware Kit
2021CadillacXT4SportRear(Red Calipers); DFC Disc Brake Hardware Kit
2020BuickRegal SportbackGSRearDFC Disc Brake Hardware Kit
2020CadillacXT4—RearDFC Disc Brake Hardware Kit
2019BuickRegal SportbackGSRearDFC Disc Brake Hardware Kit
2019CadillacXT4—RearDFC Disc Brake Hardware Kit
2018BuickRegal SportbackGSRearDFC Disc Brake Hardware Kit