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Sleeper Extension Panels

Browse our selection of Sleeper Extension Panels

Extension panels extend along the bottom of the sleeper extension fairing. These are designed for Peterbilt 388 models. Available with or without lites. Panels for 36″/44″, 48″/58″, 63″72″ and 70″/78″ sleepers available. Hardware is included.

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Part # : 10010404 (Legacy Part Number 10962163)

21″ EXTENSION PANELS

For 1997+ Peterbilt 379 models, 2007+ Peterbilt 388 models and 2007-2008 Peterbilt 389 models. For 70″ sleepers (78″ new sleeper size). Measures 3″ wide. With 1 amber clear M1 LED lite. For 12″ or 16″ lite spacing.

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Part # : 10010383 (Legacy Part Number 10962016)

BLANK 4″ WIDE EXTENSION PANELS

For Peterbilt 379, 388 and 389 models. Measure 4″ wide. For 36″, 48″ and 63″ sleepers (44″, 58″ and 72″ new sleeper sizes). Blank (no lites). Sold in pairs.

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Part # : 10010384 (Legacy Part Number 10962017)

BLANK 4″ WIDE EXTENSION PANELS

For Peterbilt 379, 388 and 389 models. Measure 4″ wide. For 70″ sleepers (78″ new sleeper sizes). Blank (no lites). Sold in pairs.

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Part # : 10962802

BLANK 4″ WIDE PAINTABLE EXTENSION PANELS

For Peterbilt 379, 388 and 389 models. Measure 4″ wide. For 48″ and 63″ sleepers (58″ and 72″ new sleeper sizes). Paintable. Blank (no lites). Sold in pairs.

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Part # : 10010423 (Legacy Part Number 10962803)

BLANK 4″ WIDE PAINTABLE EXTENSION PANELS

For Peterbilt 379, 388 and 389 models. Measure 4″ wide. For 70″ sleepers (78″ new sleeper sizes). Paintable. Blank (no lites). Sold in pairs.

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Part # : 10010381 (Legacy Part Number 10962002)

BLANK EXTENSION PANELS

For 1997+ Peterbilt 379, 2007+ 388 models and 2007-2008 Peterbilt 389 models. For 70″ (78″ new) Unibilt sleepers. Sold in pairs. Blank (no lites). Measure 3″ wide. Hardware included.

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Part # : 10010380 (Legacy Part Number 10962001)

BLANK EXTENSION PANELS

For 1987+ Peterbilt 379 models, 2007+ Peterbilt 388 models as well as 2007-2008 Peterbilt 389 models. Measure 3″ wide. For 36″, 48″ and 63″ sleepers (44″, 58″ and 72″ new sleeper sizes). Blank (no lites). Sold in pairs.

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Part # : 10010428 (Legacy Part Number 10962909)

EXTENSION PANELS

For Peterbilt 379, 388 and 389 models. For 36″, 48″ and 63″ sleepers (44″, 58″ and 72″ new sleeper size). With amber clear 3/4″ round LED lites. Sold in pairs. Measure 4″ wide.

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Part # : 10010429 (Legacy Part Number 10962910)

EXTENSION PANELS

For Peterbilt 379, 388 and 389 models. For 70″ sleepers (78″ new sleeper size). With amber 3/4″ round LED lites. Sold in pairs. Measure 4″ wide.

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Part # : 10010430 (Legacy Part Number 10962911)

EXTENSION PANELS

For Peterbilt 379, 388 and 389 models. For 70″ sleepers (78″ new sleeper size). With amber clear 3/4″ round LED lites. Sold in pairs. Measure 4″ wide.

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Part # : 10010419 (Legacy Part Number 10962529)

EXTENSION PANELS

For Peterbilt 379, 388 and 389  models for 36″, 48″ and 63″ sleepers (44″, 58″ and 72″ new sleeper size). Amber M5 LED lites. Sold in pairs. Measure 4″ wide.

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Part # : 10010420 (Legacy Part Number 10962530)

EXTENSION PANELS

For Peterbilt 379, 388 and 389  models for 36″, 48″ and 63″ sleepers (44″, 58″ and 72″ new sleeper size). Amber clear M5 LED lites. Sold in pairs. Measure 4″ wide.

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Part # : 10010421 (Legacy Part Number 10962531)

EXTENSION PANELS

For Peterbilt 379, 388 and 389 models. For 70″ sleepers (78″ new sleeper size). With 2 amber M5 LED lites per panel. Sold in pairs. Measure 4″ wide.

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Part # : 10010422 (Legacy Part Number 10962532)

EXTENSION PANELS

For Peterbilt 379, 388 and 389 models. For 70″ sleepers (78″ new sleeper size). With 2 amber clear M5 LED lites per panel. Sold in pairs. Measure 4″ wide.

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Part # : 10010427 (Legacy Part Number 10962908)

EXTENSION PANELS

For Peterbilt 379, 388 and 389 models. For 36″, 48″ and 63″ sleepers (44″, 58″ and 72″ new sleeper size). With amber 3/4″ round LED lites. Sold in pairs. Measure 4″ wide.

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Part # : 10010414 (Legacy Part Number 10962504)

EXTENSION PANELS

For 1997+ Peterbilt 379 models, 2007+ Peterbilt 388 models and 2007-2008 Peterbilt 389 models. Fit 70″ sleepers (78″ new). Sold in pairs. With amber clear M5 LED lites. Measures 3″ wide.

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Part # : 10010412 (Legacy Part Number 10962503)

EXTENSION PANELS

For 1997+ Peterbilt 379 models, 2007+ Peterbilt 388 models and 2007-2008 Peterbilt 389 models. Fit 70″ (78″ new) sleepers. Sold in pairs. With amber M5 LED lites. Measures 3″ wide.

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Part # : 10010410 (Legacy Part Number 10962502)

EXTENSION PANELS

For 1987+ Peterbilt 379 models, 2007+ Peterbilt 388 models and 2007-2008 Peterbilt 389 models. Fit 36″, 48″ and 63″ sleepers (44″, 58″ and 72″ new sleeper sizes). Sold in pairs. With amber clear M5 LED lites. Measures 3″ wide.

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Part # : 10010408 (Legacy Part Number 10962501)

EXTENSION PANELS

For 1987+ Peterbilt 379 models, 2007+ Peterbilt 388 models and 2007-2008 Peterbilt 389 models. Fit 36″, 48″ and 63″ sleepers (44″, 58″ and 72″ new sleeper sizes). Sold in pairs. With amber M5 LED lites. Measures 3″ wide.

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Part # : 10010392 (Legacy Part Number 10962119)

EXTENSION PANELS

For 1987+ Peterbilt 379 models, 2007+ Peterbilt 388 models and 2007-2008 Peterbilt 389 models. Fit 36″, 48″ and 63″ sleepers (44″, 58″ and 72″ new sleeper sizes). Sold in pairs. With amber M1 LED lites. Measures 3″ wide.

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Part # : 10962118

EXTENSION PANELS

For 1987+ Peterbilt 379 models, 2007+ Peterbilt 388 models and 2007-2008 Peterbilt 389 models. Fit 36″, 48″ and 63″ sleepers. Sold in pairs. With 3 amber clear M1 LED lites. Measures 3″ wide.

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Part # : 10010391 (Legacy Part Number 10962116)

EXTENSION PANELS

For 1997+ Peterbilt 379 models, 2007+ Peterbilt 388 models and 2007-2008 Peterbilt 389 models. Fit 70″ sleepers (78″ new sleeper size). Sold in pairs. With 1 amber clear M1 LED lite. Measures 3″ wide.

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Part # : 10010390 (Legacy Part Number 10962115)

EXTENSION PANELS

For 1987+ Peterbilt 379 models, 2007+ Peterbilt 388 models and 2007-2008 Peterbilt 389 models. Fit 36″, 48″ and 63″ sleepers. Sold in pairs. With 1 amber clear M1 LED lite. Measures 3″ wide.

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Part # : 10962104

EXTENSION PANELS

For 1997+ Peterbilt 379 models, 2007+ Peterbilt 388 models and 2007-2008 Peterbilt 389 models. Fit 70″ sleepers (78″ new sleeper size). Sold in pairs. With 1 amber M1 LED lite. Measures 3″ wide.

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Part # : 10010388 (Legacy Part Number 10962103)

EXTENSION PANELS

For 1987+ Peterbilt 379 models, 2007+ Peterbilt 388 models and 2007-2008 Peterbilt 389 models. Fit 36″, 48″ and 63″ sleepers. Sold in pairs. With 1 amber M1 LED lite. Measures 3″ wide.

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Part # : 10010382 (Legacy Part Number 10962012)

EXTENSION PANELS

For 1987+ Peterbilt 379, 2007+ 388 models and 2007-2008 Peterbilt 389 models. For 70″ Unibilt sleepers. Sold in pairs. With 1 amber 2″ round lite. Matches 8″, 12″ or 16″ lite spacing. Hardware, lites and harnesses included.

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Part # : 10010394 (Legacy Part Number 10962127)

EXTENSION PANELS – 4″ WIDE

For Peterbilt 379, 388 and 389 models. For 70″ (78″) sleepers. M1 amber LED lites. Sold in pairs. Measure 4″ wide.

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Part # : 10010395 (Legacy Part Number 10962128)

EXTENSION PANELS – 4″ WIDE

For Peterbilt 379, 388 and 389 models. For 70″ (78″) sleepers. M1 amber clear LED lites. Sold in pairs. Measure 4″ wide.

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Part # : 10010396 (Legacy Part Number 10962129)

EXTENSION PANELS – 4″ WIDE

For Peterbilt 379, 388 and 389 models. For 36″, 48″ and 63″ sleepers (44″, 58″ and 72″ new sleeper sizes). M1 amber LED lites. Sold in pairs. Measure 4″ wide.

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Part # : 10010397 (Legacy Part Number 10962130)

EXTENSION PANELS – 4″ WIDE

For Peterbilt 379, 388 and 389 models. For 36″, 48″ and 63″ sleepers (44″, 58″ and 72″ new sleeper sizes). M1 amber clear LED lites. Sold in pairs. Measure 4″ wide.

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Part # : 10962801

EXTENSION PANELS WITH GLO-LITES

For 2007+ Peterbilt 379 Ultra cab models as well as 388 and 389 models. Use with 78″ (70″ old) sleepers. Sold in pairs. With 1 2″ round glo-lite. Measure 3″ wide.

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Part # : 10962800

EXTENSION PANELS WITH GLO-LITES

For 2007+ Peterbilt 379 modes, 2011+ Peterbilt 388 models and 2007-2008 Peterbilt 389 models. Use with 44″, 58″ and 72″ sleepers (36″, 48″ and 63″ old sleeper sizes). Sold in pairs. With 3 amber 2″ round LED glo-lites. Measures 3″ wide.

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Part # : 10010393 (Legacy Part Number 10962126)

EXTENSION PANELS WITH TURN SIGNAL MOUNT

For 1987+ Peterbilt 379 models, 2007+ Peterbilt 388 models and 2007-2008 Peterbilt 389 models. Fit 36″, 48″ and 63″ sleepers (44″, 58″ and 72″ new sleeper sizes). Sold in pairs. With 1 amber M1 LED lite and turn signal mount. Measures 3″ wide.

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Part # : 10962912

PAINTABLE UNDERLIT EXTENSION PANELS

For Peterbilt 379 models. Also fit 388 and 389 models. For 48″ and 63″ (44″, 58″ and 72″ new sleeper sizes). Underlit with amber clear 3/4″ round LED lites. Paintable. Sold in pairs. Measure 4″ wide.

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Part # : 10962904

UNDERLIT EXTENSION PANELS

For Peterbilt 379, 388, 2007-2008 2014+ 389 models. For 36″, 48″ and 63″ (44″, 58″ and 72″ new) sleepers. Underlit with 4 amber clear 3/4″ round LED lites per extension panel. Sold in pairs. Measure 3″ wide.

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Part # : 10010424 (Legacy Part Number 10962905)

UNDERLIT EXTENSION PANELS

For Peterbilt 379, 388, 2007-2008 and 2014+ 389 models. For 70″ (78″ new) sleepers. Underlit with amber clear 3/4″ round LED lites. Sold in pairs. Measure 3″ wide.

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Part # : 10010425 (Legacy Part Number 10962906)

UNDERLIT EXTENSION PANELS

For Peterbilt 379 models. Also fit 388 and 389 models. For 36″, 48″ and 63″ (44″, 58″ and 72″ new sleeper sizes). Underlit with 4 amber clear 3/4″ round LED lites per extension panel. Sold in pairs. Measure 4″ wide.

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Part # : 10010426 (Legacy Part Number 10962907)

UNDERLIT EXTENSION PANELS

For Peterbilt 379, 388, 2007-2008 2014+ 389 models. For 70″ (78″) sleepers. Underlit with amber clear 3/4″ round LED lites. Sold in pairs. Measure 4″ wide.

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Part # : 10010431 (Legacy Part Number 10962913)

UNDERLIT PAINTABLE EXTENSION PANELS

For Peterbilt 379, 388, 2007-2008 and 2014-2017 389 models. For 70″ (78″) sleepers. Paintable Underlit with amber clear 3/4″ round LED lites. Sold in pairs. Measure 4″ wide.

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