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4421010 Mechanism Repair Kit for Air Disc Brakes

4421010

Summary

This mechanism repair kit is designed for heavy commercial vehicle air disc brake calipers. It is compatible with DAF, Iveco, Freightliner, and Dennis systems to restore braking performance through high-strength components. Equivalent to OE DAF FBU7687, Dennis 6532515 and Freightliner TBBD6532515.

Product identifiers
EAN Code8683457039858
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Compatible OEM Codes

  • DENNIS
    • 6532515
    • 653251-5
  • WABCO
    • 13 301 212
  • KIA
    • AA84J33751
  • IVECO
    • 8121307
  • FREIGHTLINER
    • TBBD6532515
  • DAF
    • FBU7687

Description

What does a mechanism repair kit do?

This mechanism repair kit serves as a specialized service set designed to renew the internal force-transmission and automatic adjustment assembly within air disc brake calipers. By replacing only the worn moving elements inside the housing, this kit allows for the efficient restoration of pad clearance and pedal response without requiring a complete caliper replacement.

Vehicle and system compatibility

This component is compatible with DAF, Iveco, Freightliner, and Dennis vehicles. It is specifically engineered to work with WABCO systems and other major heavy commercial vehicle braking architectures to ensure reliable service life.

Installation and maintenance guidance

Technicians should inspect the internal lever arm, eccentric bearing, and sealing elements during installation to ensure optimal braking force. Regular maintenance of these components helps prevent uneven pad wear and ensures the automatic adjuster spindle functions according to specification.

Troubleshooting braking performance

When troubleshooting brake drag or inconsistent pedal feel, replacing the internal mechanism is a cost-effective solution for fleet maintenance. Consult your authorized distributor.

OE cross-reference

4421010 (Mechanism Repair Kit) is the equivalent of the DAF, Dennis, Freightliner, Iveco, Kia and WABCO OE numbers. This part directly replaces DAF OE number FBU7687. It also replaces Dennis OE numbers 6532515, 6532515, Freightliner OE number TBBD6532515, Iveco OE number 8121307, Kia OE number AA84J33751 and WABCO OE number 13301212.

Other OEMs

DAF

  • FBU7687

DENNIS

  • 6532515
  • 653251-5

FREIGHTLINER

  • TBBD6532515

IVECO

  • 8121307

KIA

  • AA84J33751

WABCO

  • 13301212
  • 13 301 212

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
DENNIS
FREIGHTLINER
IVECO
KIA
WABCO
WEDGE BRAKE WABCO PERROT Ø 360 SIMPLEX

Vehicle and Engine Pages

FAQ

What is the function of a mechanism repair kit?
It renews the internal force-transmission and automatic adjustment assembly inside an air disc brake caliper to restore proper pad clearance.
Which vehicle brands are these kits compatible with?
These kits are compatible with DAF, Iveco, Freightliner, and Dennis vehicles, as well as various WABCO systems.
Does this kit replace the entire brake caliper?
No, this kit is designed to renew only the internal moving elements like the lever arm and seals, rather than the entire caliper housing.
What symptoms indicate a need for a mechanism repair?
Inconsistent pedal response or uneven pad wear often indicates that the internal adjustment mechanism requires renewal.
What are the OE reference numbers of this part?
4421010 directly replaces DAF OE number FBU7687. It also replaces Dennis OE numbers 6532515, 6532515, Freightliner OE number TBBD6532515, Iveco OE number 8121307, Kia OE number AA84J33751 and WABCO OE number 13301212.