Restore smooth and reliable power window operation on your Peterbilt with the Automann HLK2281 left‑hand power window regulator. This heavy‑duty aftermarket replacement matches OEM exactness and delivers dependable performance for commercial applications.
Application: Left-hand side (driver) power window regulator
Vehicle Fitment: Designed for Peterbilt models including 357, 365, 367, 378, 379, 388, 389 (2005–2023)
Construction: Heavy-duty and built for durability
Installation: Direct OEM replacement — no cutting or modifications needed
Height: ~28"
Length: ~12.25"
Width: ~2.5"
Weight: ~9 lb (based on equivalent specs)
| Brand/Source | Cross‑Reference Part Numbers |
|---|---|
| Peterbilt OEM | R21‑6009, R21‑6011, R216009, R216011 |
| Dorman | 741‑5401 |
| Midwest / Newstar | WA129‑0020 (Midwest), PTR‑R21‑6011 (Newstar) |
Accurate Fitment: OEM-style mounting and fit for a hassle-free install
Robust Performance: Heavy-duty build meets long-haul trucking demands
Clear Compatibility: Replaces multiple OEM and aftermarket part numbers
Full Warranty: Backed by Automann’s standard coverage
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