ProbossRef.
PROBOSS lumbar adjustment knob 11981145 tractor seat replacement part
Original PROBOSS replacement lumbar adjustment knob, part number 11981145, for tractor, agricultural, and construction machinery seats. Engineered to provide precise ergonomic adjustment of the backrest lumbar support, maximizing operator comfort during long working shifts. Fully compatible and paired with seat models 11484469, 11740895, 12260200, 12260796, 12268333, 12268536, 12268538, and 12271629. Durable replacement part.
Read more ↓- Original PROBOSS spare part
- Ergonomic non-slip grip
- High-strength technical polymer
€3.30VAT incl.
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Description
PROBOSS replacement lumbar adjustment knob - Part number 11981145
Original replacement lumbar adjustment knob manufactured by PROBOSS, commercial part number 11981145. This ergonomic control dial is specifically engineered to operate the mechanical lumbar support assembly integrated into the backrest of PROBOSS tractor and agricultural machinery operator seats. Its primary function is to allow the operator to finely adjust lower-back curvature and support, reducing spinal fatigue and improving posture during extended field operations. Molded from high-strength, slip-resistant technical polymer, it ensures a firm grip and smooth torque transmission to the adjustment shaft. It is the ideal replacement part for worn, stripped, cracked, or missing knobs, restoring full ergonomic backrest functionality.
Key features
Original PROBOSS spare partMolded with a calibrated internal spline/profile for a snug, play-free fit onto the lumbar mechanism shaft.
Ergonomic non-slip gripContoured handwheel design provides positive leverage and easy rotation even while wearing work gloves.
High-strength technical polymerImpact-resistant plastic construction built to withstand accidental cab knocks, daily wear, and temperature fluctuations.
Quick and direct installationFits directly onto the backrest control spindle with no modifications required.
Specifications
| Commercial part number | 11981145 |
|---|---|
| Product type | Replacement lumbar support adjustment knob for tractor seat |
| Manufacturer / Brand | PROBOSS |
| Primary function | Manual adjustment of backrest lumbar support |
| Matching / Compatible seat codes | 11484469, 11740895, 12260200, 12260796, 12268333, 12268536, 12268538, 12271629 |
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Shipping and returns
📦 ShippingShips within 2 working days, GLS delivery in 1–3 days. Free shipping over €30 (VAT excl.).
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PROBOSS lumbar adjustment knob 11981145 tractor seat replacement partPrice€3.30