Manual Window Regulator 3717250402

The 3717250402 is a premium heavy-duty manual window regulator (window lifter) specifically engineered for Mercedes-Benz medium and heavy-duty trucks. TinzerMotor manufactures this component as a high-strength aftermarket solution, designed to replace the original equipment with enhanced durability for professional vocational use.

• Part Number: 3717250402 / A3717250402

• Primary Application: Primarily used in Mercedes-Benz LN2 and LK (Leichte Klasse) series trucks (such as the 814, 917, 1117, and 1320 models). It is also found in various specialized commercial chassis from that era.

• Position: Front Left (Driver Side).

• Mechanism Type: Manual (Hand-crank operated), utilizing a robust scissor or single-rail guide system.

• Material: Constructed from heavy-duty galvanized steel to prevent rail warping and ensure structural integrity in high-vibration environments.

• Mercedes-Benz OEM: 371 725 04 02, A371 725 04 02, A3717250402

• DT Spare Parts: 4.62921

• Febi Bilstein: 101407 (Note: varies by exact chassis year)

• Trucktec: 01.53.045

• Meyle: 034 072 0010

• Precision Smooth-Glide Technology: TinzerMotor utilizes low-friction sliders and industrial-grade internal lubricants. This ensures the window remains exceptionally easy to crank, preventing the mechanical "stiffening" common in lower-quality alternatives.

• Reinforced Structural Integrity: Built with thicker steel rails and high-tensile fasteners to prevent the mechanism from rattling or losing alignment during high-vibration truck operations.

• Rigorous Reliability Testing:

• Mechanical Cycle Validation: Tested for over 20,000 full-stroke operations to ensure the crank gears and internal pivot points do not wear out or strip.

• Anti-Corrosion Finish: Components undergo an 8-stage salt spray test, protecting the regulator from moisture and road salt ingress within the door cavity.

• Fitment Accuracy: Manufactured to 1:1 OEM specifications, ensuring that mounting holes and the crank spindle align perfectly with the original door panel.

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