Door-opening Motor
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LandRover Door-opening Motor 8362066 8377790

To Replace:
BMW/LandRover
For Vehicle:

3 Series 2006-99       

Range Rover 2012-03


Part No.:

742-908

8362066                           

8377790                                                        

0130821727

67628362066                     

67628377790


Tinzer No.
21T-L 12V
  • Introduction
  • factory
TinzerMotor Bus & Van Door Opening Motor: 8377790
TinzerMotor is a leading global manufacturer of heavy-duty actuation systems. Our 8377790 model is a high-performance door opening motor engineered specifically for the extreme duty cycles and safety requirements of Buses, Vans, and Commercial Transit vehicles.
1. Technical Information
  • Operating Voltage: 12V / 24V DC configurations.

  • Heavy-Duty Torque: Optimized to drive heavy mechanical door linkages, providing the high stall torque needed to overcome cold weather seal resistance.

  • Transmission: Features a high-efficiency worm gear system made of hardened steel and industrial-grade bronze for maximum longevity.

  • Acoustics: Precision-ground internal components ensure ultra-quiet operation (under 45 dBA), enhancing passenger comfort during transit.

  • Protection: Built-in thermal overload protection and electromagnetic interference (EMI) suppression.

2. Applications
The 8377790 is a versatile power unit for automated entry systems in:
  • Transit & Coach Buses: Ideal for folding, sliding, and out-swing door systems in city buses and luxury coaches.

  • Commercial Vans: Widely used for automating side-loading doors in delivery fleets and paratransit minibuses.

  • Mainstream Compatibility: Commonly found in door actuator assemblies for Volvo, Scania, and Mercedes-Benz bus platforms, as well as specialized coach-builders like Alexander Dennis and New Flyer.

3. Interchange Numbers (Cross-Reference)
The TinzerMotor 8377790 is a direct replacement for:
  • Industry Part Number: 8377790

  • Bosch Cross-Ref: 0130821324 / 0130821 series

  • OEM Reference: Compatible with various European and American transit-specific part numbers for door actuators.

4. TinzerMotor High Quality & Testing
At TinzerMotor, we focus on "Reliability for the Long Haul." Our manufacturing process includes:
  • Industrial Endurance Testing: Validated for over 120,000+ full-duty cycles, far exceeding standard aftermarket expectations to minimize vehicle downtime.

  • Extreme Weather Validation: Tested to operate flawlessly in temperatures ranging from -40°C to +85°C, ensuring door safety in both Arctic and desert climates.

  • IP67 Sealing: Every motor features an airtight, waterproof, and dustproof seal to protect internal components from road salt, grime, and high-pressure washing.

  • 100% End-of-Line (EOL) Testing: Each unit is individually tested for torque output, current draw, and speed consistency before leaving our ISO-certified facility.

Please contact: 

Ms Riva  

Wechat/WhatsApp +86 15355970956 

Email: riva@ruishuoautoparts.com


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