Peterbilt Window Regulator R21-6012 R216012 HLK2529

To Replace:

Peterbilt

For Vehicle:

Peterbilt

335 model 05-10

Part No.:

HLK2529

R21-6012

R216012

Tinzer No.

33G12-L

Introduction
factory

TinzerMotor Premium Heavy-Duty Window Regulator Assembly R21-6012 / R216012 / HLK2529

TinzerMotor manufactures this premium replacement assembly to provide an exceptional OE standard alternative for commercial fleet operations. Specifically engineered as a high-performance Peterbilt heavy-duty window regulator, this unit directly replaces factory mechanisms to restore reliable, quiet, and smooth window lifting power. Built with structural improvements to eliminate common failure points, this American heavy-duty window regulator delivers long-lasting durability under demanding long-haul conditions.

Technical Information

This American heavy-duty window regulator features reinforced architecture tailored to withstand rigorous daily fleet utilization.

Brand / Manufacturer: TinzerMotor
OEM Cross-Reference Part Numbers: R21-6012 / R216012 / HLK2529
Operation Type: Power / Electric Actuation (Integrated assembly)
Placement on Vehicle: Front Door, Driver Side (Left Hand - LH)
Material Composition: High-strength reinforced steel framing, high-torque gears, and heavy-duty cable track linkages
Attachment Method: Direct Bolt-On design for stable mounting
Electrical Interface: Direct factory-style connector plug for straightforward plug-and-play installation

Product Application

This Peterbilt heavy-duty window regulator is precision-molded to match the interior cab geometry of specific class-8 commercial vehicles.

Primary Truck Model Compatibility: Custom tailored for Peterbilt 335 medium and heavy-duty series.
Applicable Model Years: Fits vehicle production lines spanning 2005, 2006, 2007, 2008, 2009, and 2010.
System Integration: Compatible with standard Peterbilt cab and sleeper cabin doors utilizing electric door glass controls.

OE Standard & Quality Control

Every Peterbilt heavy-duty window regulator produced by TinzerMotor is manufactured to meet or exceed strict OE performance standards.

Endurance Cycle Testing: Regulators undergo continuous multi-thousand cycle endurance stress tests to verify component lifetime and resist cable binding or motor overload.
Anti-Stripping Design: Features upgraded gear-tooth profiling to prevent gear stripping under high-stress weather environments.
Precise Dimensional Tolerance: Laser-measured steel structural stamping ensures seamless alignment into the door cavity without drilling modifications.

Commercial Fleet Solutions

Beyond this individual unit, TinzerMotor specializes in comprehensive commercial fleet coverage. Tinzer manufactures this kind of heavy-duty window regulator for American trucks—including Freightliner, Kenworth, Peterbilt, Mack, International, Terex, Western Star, and Autocar. Each American heavy-duty window regulator is engineered for seamless mechanical drop-in fitment, making this Peterbilt heavy-duty window regulator the perfect balance of cost-efficiency and uncompromising reliability for your logistics fleet.

Please contact:

Ms Riva

Wechat/WhatsApp +86 15355970956

Email: riva@ruishuoautoparts.com

Alibaba Shop linkage:

Peterbilt Window Regulator R21-6012 HLK2529

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