22024917 Truck Seat Lumbar Support Adjustment Knob for Volvo

$8.22

Seat Lumbar Support Adjustment Knob Specifics

OEM Part Numbers: 22024917, 21935100, 7422024917
Product Name: Seat Backrest Recline / Lumbar Support Control Knob
Truck Compatibility: for Volvo FH4, FM4 Series; for Renault Range T / C / K Series
Seat System: Fits for ISRI NTS2 (New Generation) Air Suspension Seats
Material: High-Impact Industrial ABS + Zinc-Plated Locking Spring
Function: Controls the depth and angle of backrest lumbar support
Condition: 100% Brand New Precision Molded Replacement

Smooth Actuation: Features a high-tension internal spring that ensures the knob stays in position while providing a tactile "click" for precise lumbar adjustment.
Reinforced Hinge Design: We have strengthened the internal hinge pivot points, the most common failure area in original knobs, to prevent premature snapping.
Direct OEM Fitment: Engineered as a 1:1 dimensional match to for Volvo 22024917, ensuring an easy snap-on installation without any modification to the seat frame.
High-Durability Finish: The matte-textured surface provides excellent grip even with gloves and resists scratches and cabin cleaners.

SYSTEM CHECK: This knob is specifically for the **NTS2 (New Gen)** seats found in for Volvo FH4 and for Renault Range T. It will NOT fit older NTS1 seats with flat-style knobs.
SPRING POSITION: Ensure the gold-colored central spring is properly seated in the center hole of your seat frame's adjuster spindle during installation.
OE NUMBER MATCH: This part replaces both **22024917** and the older number **21935100**. Verify these numbers are listed in your parts manual.
SIDE MOUNTING: This knob is typically used for the lumbar support recline. Check if your current knob has the open-center design with the hinge as shown in our photos.

Truck Brand / Series	Seat Generation
for Volvo FH4 / FM4 (2013-Present)	for ISRI NTS2
for Renault Range T / C / K (Euro 6)	for ISRI NTS2
Universal Truck Applications	for ISRI NTS2 Chassis