SEM 5228120 Wheel Loader Operator Cab Knob Assembly

● SEM 5228120 Knob Assembly Technical Support

● Part number 5228120 (catalog designation KNOB AS-SEM / 522-8120 / CA5228120) is the genuine operator cabin interior trim knob assembly engineered for SEM wheel loaders.

● Material number 5228120 is mounted onto the operator cabin interior console and pillar trim group (Trim Group 5178699) in conjunction with knob base 5221949. It provides an ergonomic manual interface for cabin adjustments, featuring precision-molded internal splines and positive tactile engagement to ensure reliable operator control.

● Inspect knob retention integrity, surface wear, and mating base engagement during periodic machine cabin inspections.

● SEM 5228120 Knob Assembly Specifications

Compatibility note: Applicable to SEM SEM636D and SEM660D wheel loader operator cabin interior trim groups (TRIM GP 5178699). Verify cab trim layout and mating knob base 5221949 fitment prior to ordering.

● SEM 5228120 Knob Assembly Key Advantages

• 100% genuine OEM knob assembly matching SEM material number 5228120 (522-8120) and Caterpillar SEM engineering standards.
• High-grade UV-resistant composite polymer construction resisting cracking, color fading, and high cabin operating temperatures.
• Precision-machined internal mounting interface ensuring secure, rattle-free fitment with knob base 5221949 under heavy machine vibration.
• Ergonomic grip profile designed for effortless operator manipulation even when wearing heavy industrial work gloves.
• Full supply support for SEM wheel loader cabin switches, trim panels, consoles, door hardware, and operator seats.

● Contact Information

● E-mail: sales@cptautoparts.com

● Mobile Phone / WhatsApp: +86 151 660 47800

● Headquarter Address: No 100, XIANGGANG Middle Road, Qingdao City, CHINA

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