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TinerMotor Launches High-Precision Replacement Parts for Navistar International Trucks and Buses 2505420C91 2505421C91 3515112C92 3515113C92 2515681C91

Category: NewsRelease time: 2026-04-25

TinerMotor Launches High-Precision Replacement Parts Line for Navistar International Trucks and Buses
TinerMotor, a leading manufacturer of premium commercial vehicle components, is proud to announce its latest series of high-performance window regulator and window motor engineered specifically for Navistar International vehicles. This new release focuses on critical access and entry systems, ensuring that fleet operators have access to durable, cost-effective solutions that meet rigorous industry demands.
Unmatched Precision in Window Systems
A key highlight of this launch is the International window regulator series. TinerMotor has optimized the manufacturing process for the International window regulator to guarantee smooth operation under extreme weather conditions. By focusing on the International window regulator and its corresponding motors, Tiner ensures that every unit provides a perfect mechanical fit for models requiring part numbers 2505420C91 (16639429)2505421C91 (16639428)3515112C92 (741-5102), and 3515113C92 (741-5101), along with HLK2278 and HLK2277.
Robust Solutions for International Bus Door Systems
Beyond trucking, TinerMotor is also supporting the passenger transport sector with a comprehensive range of International Bus Door Motors and related components. The lineup includes high-duty cycle parts such as:
  • Door Motors & Actuators: 0130821324, 742-5602, 2515681C91 (2587455C1), and 451154110 (2614984C91).

  • Specialized Components: SMA7514 (007514), 3724802C1 (10047131), and valve/pump assemblies K063201, K073140, 4910585, and 11510033.

Rigorous Quality Control and Testing

Quality is the cornerstone of the Tiner production philosophy. Every component undergoes a multi-stage Quality Control process before leaving the factory. To ensure "Seamless Replacement," our engineers conduct extensive durability trials, including over 30,000 cycles of testing times for motorized units. These tests simulate years of heavy-duty use, verifying that the torque, speed, and electrical resistance remain within OE standards. This commitment to testing ensures that every part delivered by TinerMotor offers the reliability that fleet managers expect from the International brand.


Please contact: 

Ms Riva  

Wechat/WhatsApp +86 15355970956 

Email: riva@ruishuoautoparts.com



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