20399174 - Steering column switch retarder
High-precision steering column switch retarder manufactured as a direct interchange for OEM numbers 20399174. Engineered for heavy-duty commercial vehicle applications (Volvo Volvo Bus 9/11/12/13 (D/DH engine), Volvo Volvo Bus B 5/6/7/8, Volvo Volvo FH/FM/FMX/NH 9/10/11/12/13/16), ensuring optimal operational performance and long service life.
Technical Description
What function does this part serve?
The Steering column switch retarder (Interchangeable OE: 20399174) absorbs vibration, minimizes surface wear, and guarantees operational integrity across commercial heavy-duty systems.
System Compatibility
Precision-engineered to match OEM parameters for Volvo Volvo Bus 9/11/12/13 (D/DH engine), Volvo Volvo Bus B 5/6/7/8, Volvo Volvo FH/FM/FMX/NH 9/10/11/12/13/16 fleets, providing drop-in fitment without requiring mechanical adjustments.
Assembly & Maintenance Guidelines
Ensure mounting surfaces are free of debris prior to installation. Tighten all fasteners according to original vehicle manufacturer torque specifications.
OE Interchangeability
Designed as an exact cross-reference replacement for OEM codes including 20399174. Reference item catalog ID: KT11442.
Compatible Cross Reference OEM Numbers
Total Brands: 1VOLVO
Compatible Vehicle Applications
This OEM replacement part is suitable for the following commercial vehicle platforms & models:
Frequently Asked Questions
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