Enter Vehicle Year Make Model

Specify your vehicle's year, make and model to guarantee fit.

Year
Make
Model
Options
Drivetrain

1999 Peterbilt 378 Exterior, Body Parts & Mirrors

What year is your
Free Same Day Shipping

1999 Peterbilt 378 Exterior, Body Parts & Mirrors

Filter Results
  • Notify When Available
    Mirror

    Replaces Mirror TRQ MRA08654

    Brand: TRQ
    - MRA08654

    • Includes: Mounting Bracket
    • Design: Round
    • Heated: Yes
    • Housing Turn Signal Indicator: No
    • Mirror Turn Signal Indicator: No
    • Adjustment Type: Manual
    • Cover Finish: Smooth
    • Cover Color: Stainless Steel
    • Housing Color: Stainless Steel
    $49.95
    Save 15%
    List $58.95 Save $9.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

    Replaces Mirror TRQ MRA08654

    Mirror
    Brand: TRQ - MRA08654
    • Includes: Mounting Bracket
    • Design: Round
    • Heated: Yes
    • Housing Turn Signal Indicator: No
    • Mirror Turn Signal Indicator: No
    • Adjustment Type: Manual
    • Cover Finish: Smooth
    • Cover Color: Stainless Steel
    • Housing Color: Stainless Steel
    $49.95
    Save 15%
    List $58.95 Save $9.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

  • Notify When Available
    Mirror

    Replaces 1999 Peterbilt 378 Passenger Side Manual Heated Mirror TRQ MRA04136

    Brand: TRQ
    - MRA04136

    • Heated: Yes
    • Housing Turn Signal Indicator: Yes
    • Includes: Mounting Bracket
    • Design: Round
    • Cover Color: Stainless Steel
    • Cover Finish: Smooth
    • Housing Color: Stainless Steel
    • Adjustment Type: Manual
    • Mirror Turn Signal Indicator: Yes
    $59.95
    Save 20%
    List $74.95 Save $15.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

    Replaces 1999 Peterbilt 378 Passenger Side Manual Heated Mirror TRQ MRA04136

    Mirror
    Brand: TRQ - MRA04136
    • Heated: Yes
    • Housing Turn Signal Indicator: Yes
    • Includes: Mounting Bracket
    • Design: Round
    • Cover Color: Stainless Steel
    • Cover Finish: Smooth
    • Housing Color: Stainless Steel
    • Adjustment Type: Manual
    • Mirror Turn Signal Indicator: Yes
    $59.95
    Save 20%
    List $74.95 Save $15.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

  • Notify When Available
    Mirror

    Replaces 1999 Peterbilt 378 Driver Side Manual Heated Mirror TRQ MRA04137

    Brand: TRQ
    - MRA04137

    • Heated: Yes
    • Housing Turn Signal Indicator: Yes
    • Includes: Mounting Bracket
    • Design: Round
    • Cover Color: Stainless Steel
    • Cover Finish: Smooth
    • Housing Color: Stainless Steel
    • Adjustment Type: Manual
    • Mirror Turn Signal Indicator: Yes
    $59.95
    Save 20%
    List $74.95 Save $15.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

    Replaces 1999 Peterbilt 378 Driver Side Manual Heated Mirror TRQ MRA04137

    Mirror
    Brand: TRQ - MRA04137
    • Heated: Yes
    • Housing Turn Signal Indicator: Yes
    • Includes: Mounting Bracket
    • Design: Round
    • Cover Color: Stainless Steel
    • Cover Finish: Smooth
    • Housing Color: Stainless Steel
    • Adjustment Type: Manual
    • Mirror Turn Signal Indicator: Yes
    $59.95
    Save 20%
    List $74.95 Save $15.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

  • Notify When Available
    Mirror

    Replaces Mirror TRQ MRA07154

    Brand: TRQ
    - MRA07154

    • Mirror Type: West Coast
    • Mirror Head Style: Angled Back Round Corner
    • Housing Turn Signal Indicator: Yes
    • Heated: Yes
    • Adjustment Type: Manual
    • Cover Finish: Smooth
    • Cover Color: Stainless Steel
    • Housing Color: Stainless Steel
    • Mirror Turn Signal Indicator: No
    $54.95
    Save 17%
    List $65.95 Save $11.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

    Replaces Mirror TRQ MRA07154

    Mirror
    Brand: TRQ - MRA07154
    • Mirror Type: West Coast
    • Mirror Head Style: Angled Back Round Corner
    • Housing Turn Signal Indicator: Yes
    • Heated: Yes
    • Adjustment Type: Manual
    • Cover Finish: Smooth
    • Cover Color: Stainless Steel
    • Housing Color: Stainless Steel
    • Mirror Turn Signal Indicator: No
    $54.95
    Save 17%
    List $65.95 Save $11.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

  • Notify When Available

    VIDEO

    Trico Tech Wiper Blade Pair

    Replaces 1999 Peterbilt 378 2 Piece 18in Wiper Blade Set TRICO Tech TPWWS00075

    3 reviews
    Brand: TRICO Tech
    - TPWWS00075

    • Includes: (2) 18 in. Trico Tech Beam Wiper Blades
    • Quantity: 2 Piece
    • Kit Includes: (2) Wiper Blades
    • Wiper Blade Length: 18in
    $52.95
    Save 25%
    List $70.95 Save $18.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

    Replaces 1999 Peterbilt 378 2 Piece 18in Wiper Blade Set TRICO Tech TPWWS00075

    VIDEO

    Trico Tech Wiper Blade Pair
    3 reviews
    Brand: TRICO Tech - TPWWS00075
    • Includes: (2) 18 in. Trico Tech Beam Wiper Blades
    • Quantity: 2 Piece
    • Kit Includes: (2) Wiper Blades
    • Wiper Blade Length: 18in
    $52.95
    Save 25%
    List $70.95 Save $18.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

  • Notify When Available

    VIDEO

    Trico Ice Wiper Blade Pair

    Replaces 1999 Peterbilt 378 Front 2 Piece 18in Wiper Blade Set TRICO ICE TPWWS00354

    Brand: TRICO ICE
    - TPWWS00354

    • Includes: (2) 18 in. Trico Ice Beam Wiper Blades
    • Quantity: 2 Piece
    • Kit Includes: (2) Wiper Blades
    • Wiper Blade Length: 18in
    $57.95
    Save 15%
    List $67.95 Save $10.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

    Replaces 1999 Peterbilt 378 Front 2 Piece 18in Wiper Blade Set TRICO ICE TPWWS00354

    VIDEO

    Trico Ice Wiper Blade Pair
    Brand: TRICO ICE - TPWWS00354
    • Includes: (2) 18 in. Trico Ice Beam Wiper Blades
    • Quantity: 2 Piece
    • Kit Includes: (2) Wiper Blades
    • Wiper Blade Length: 18in
    $57.95
    Save 15%
    List $67.95 Save $10.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

  • Notify When Available

    VIDEO

    Wiper Blade Kit

    Replaces 1999 Peterbilt 378 Front 2 Piece 18in Wiper Blade Set TRICO Sentry TPWWS00570

    3 reviews
    Brand: TRICO Sentry
    - TPWWS00570

    • Includes: (2) 18 in. Trico Sentry Hybrid Wiper Blades
    • Quantity: 2 Piece
    • Kit Includes: (2) Wiper Blades
    • Wiper Blade Length: 18in
    $57.95
    Save 22%
    List $73.95 Save $16.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

    Replaces 1999 Peterbilt 378 Front 2 Piece 18in Wiper Blade Set TRICO Sentry TPWWS00570

    VIDEO

    Wiper Blade Kit
    3 reviews
    Brand: TRICO Sentry - TPWWS00570
    • Includes: (2) 18 in. Trico Sentry Hybrid Wiper Blades
    • Quantity: 2 Piece
    • Kit Includes: (2) Wiper Blades
    • Wiper Blade Length: 18in
    $57.95
    Save 22%
    List $73.95 Save $16.00

    Guaranteed to Fit 1999 Peterbilt 378

    Guaranteed to Fit 1999 Peterbilt 378

  • Notify When Available
    4 Inch - Square (18 Watt) Spot Beam 6 LED Flush Mount Offroad Work Light PAIR

    High Quality Performance Work Light 2 Piece Set

    Brand: Trail Ridge
    - TL10074

    • Lighting Size: 4 Inch
    • Lighting Wattage Rating: 18 Watt
    • Lighting Bulb Count: 6 LED
    • Lighting Mount Type: Flush Mount
    • Lighting Beam Pattern: Spot Beam
    • Lighting Usage: Off-Road
    • Product Grade: High Quality
    • Lighting Housing Shape: Square
    • Product Line: Performance
    • Quantity: 2 Piece Set

    Out of Stock

    $ 49.94

    High Quality Performance Work Light 2 Piece Set

    4 Inch - Square (18 Watt) Spot Beam 6 LED Flush Mount Offroad Work Light PAIR
    Brand: Trail Ridge - TL10074
    • Lighting Size: 4 Inch
    • Lighting Wattage Rating: 18 Watt
    • Lighting Bulb Count: 6 LED
    • Lighting Mount Type: Flush Mount
    • Lighting Beam Pattern: Spot Beam
    • Lighting Usage: Off-Road
    • Product Grade: High Quality
    • Lighting Housing Shape: Square
    • Product Line: Performance
    • Quantity: 2 Piece Set

    Out of Stock

    $ 49.94
  • Notify When Available

    VIDEO

    LED Trailer Alignment Kit

    LED Trailer Alignment Kit

    1 reviews
    Brand: Performance Tool
    - W1276

    Out of Stock

    $ 29.95

    LED Trailer Alignment Kit

    VIDEO

    LED Trailer Alignment Kit
    1 reviews
    Brand: Performance Tool - W1276

    Out of Stock

    $ 29.95
1

...

2 3 4 5 6

...

6
Close



Peterbilt is a registered trademark of PACCAR Inc. 1A Auto is not affiliated with or sponsored by Peterbilt or PACCAR Inc. See all trademarks.
Same Day Shipping

Need your part faster? Choose expedited shipping at checkout.

Guaranteed To Fit

Highest quality, direct fit replacement auto parts enforced to the strictest product standards.

USA Customer Support

Exceeding customers' expectations, our team of passionate auto enthusiasts are here to help.

Instructional Video Library

Thousands of how-to auto repair videos to guide you step-by-step through your repair.

Go To Top
Specify your vehicle

Specify your vehicle's year, make and model to guarantee fit.

Year
Make
Model
Options
Drivetrain

If your vehicle isn't listed, close the window to return to search.