• Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDWQVWF - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDWQVWF - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar
  • Peterbilt 325–389 Bottom - Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver) - RoadWest Truck Parts - B09XDVCP6R - High Soar

Peterbilt 325–389 Bottom-Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver)

Vehicle Fitment
Peterbilt 325 (2005+) Peterbilt 330 (2005+) Peterbilt 335 (2005+) Peterbilt 340 (2005+) Peterbilt 348 (2005+) Peterbilt 357 (2005+) Peterbilt 365 (2005+) Peterbilt 367 (2005+) Peterbilt 382 (2005+) Peterbilt 385 (2005+) Peterbilt 386 (2005+) Peterbilt 388 (2005+) Peterbilt 389 (2005+)
Amazon Price $56.99 USD
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$54.14 USD
$54.14 USD $56.99 USD
QC VERIFIED Built for Truckers. We stock it, inspect it, and verify fitment - so you get the right part first time, for less.
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DESCRIPTION

Up to 5% off

Keep your mirror stable and secure with the ROADWEST Bottom Mount Door Mirror Arm Bracket Plate, designed for a wide range of Peterbilt medium and heavy-duty trucks. This bracket is engineered for the driver/left side, providing a solid mounting point for the door mirror arm and helping maintain clear visibility on every route.

Made from high-quality A360 aluminum with a durable black finish, this bottom mounting bracket is built to withstand constant vibration, bumps, and road shock. The upgraded design helps reduce mirror movement during operation, improving both stability and service life in demanding working conditions.

The bracket is manufactured to factory OE standards and complies with DOT & SAE requirements, making it a direct replacement for the original Peterbilt mount. No major modifications are required — simply remove the damaged or worn bracket and install this unit in its place using the existing mounting points.

Compatible with Peterbilt 335, 340, 357, 382, 385, 386, 325, 330, 348, 388, 389, 365, 367 (2005 and onward), this bracket is ideal for fleet maintenance or owner-operators who want a reliable, OE-style solution. Please double-check your truck model and year before ordering to ensure proper fit.

Brand ROADWEST
Fitment Peterbilt 325, 330, 335, 340, 348, 357, 365, 367, 382, 385, 386, 388, 389 (2005+)
Auto Part Position Driver / Left Side
Color / Finish Black
Material A360 Aluminum Mirror Holder
Mounting Type Door Mount / Bottom Mirror Arm Mount
OEM Part Number MZ-3817B-L (Replacement)
Fit Type Vehicle Specific Fit
Included Components 1 × Door Mirror Bottom Mount Bracket – Driver Left for Peterbilt
Manufacturer ROADWEST

Shipping Policy

Most ROADWEST orders are processed from our U.S. warehouses within 1–2 business days (Monday–Friday, excluding major U.S. holidays).

We currently ship within the United States only and do not deliver to P.O. Boxes, APO/FPO/DPO addresses, or international addresses.

  • Shipping Area: United States only
  • Process Time: In-stock items are usually processed within 1–2 business days (Mon–Fri, excluding major U.S. holidays)
  • Delivery Method: Standard ground for most items; LTL freight for oversized or extra-heavy parts
  • Delivery Time: After shipment, delivery typically takes 3–7 business days, depending on item size, destination, and carrier performance
  • Returns: Most unused items may be returned within 30 days of delivery, subject to inspection and our return guidelines

For full details, please review our Shipping Policy and Easy Return & Refund Policy before placing your order.

Warranty

ROADWEST stands behind the parts we sell. Unless otherwise stated on the product page, your purchase is covered by a 1-Year Limited Warranty against manufacturing defects under normal use.

What’s covered

  • Defects in materials or workmanship
  • Premature failure caused by factory-related issues

What’s not covered

  • Normal wear and tear, cosmetic aging, corrosion from environment/road salt
  • Damage from improper installation, incorrect wiring, modifications, misuse, or accidents
  • Labor costs (installation/removal), downtime, towing, or other indirect costs

How to file a claim

Contact us with:

  • Order number
  • Product name / SKU
  • Clear photos or a short video showing the issue

If approved, ROADWEST will provide an appropriate resolution (replacement parts, replacement unit, or refund/credit).

Please do not send items back without return authorization.

For more details, see our Shipping Policy, Easy Return & Refund Policy, and Warranty pages.
Peterbilt 325–389 Bottom-Mount Mirror Arm Bracket Plate – Black Aluminum (LH Driver)

$54.14 USD