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Sale!

Rated 4.50 out of 5
$31.75 Original price was: $31.75.$25.00Current price is: $25.00.
79-page factory service manual for Peterbilt 270 (1999) covering electrical components, wiring identification, circuit protection, and diagnostic procedures.
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Sale!

Rated 4.67 out of 5
$16.31 Original price was: $16.31.$11.99Current price is: $11.99.
OEM Peterbilt 320 wiring diagram – 15 pages of harness layouts, PC board, and electrical center schematics. Factory-certified for professional diagnostics.
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Sale!

Rated 4.50 out of 5
$26.25 Original price was: $26.25.$17.50Current price is: $17.50.
OEM Peterbilt electrical schematic covering 320, 379, 359, 362, 372 (2006) – 40 pages of factory wiring diagrams, color codes, and troubleshooting.
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Sale!

Rated 4.75 out of 5
$48.00 Original price was: $48.00.$40.00Current price is: $40.00.
OEM Peterbilt 379 Electrical Schematic – 98 pages covering harness architecture, engine ECU, ABS, and sleeper wiring. For technicians who need factory specs.
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Sale!

Rated 4.50 out of 5
$14.99 Original price was: $14.99.$9.99Current price is: $9.99.
OEM Peterbilt 379 wiring diagram. 98 pages covering engine, lighting, DLC, and component locations. Authorized PACCAR documentation.
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Sale!

Rated 4.50 out of 5
$36.50 Original price was: $36.50.$25.00Current price is: $25.00.
OEM 41-page wiring diagram for Peterbilt 379 – harness architecture, engine, ABS, transmission schematics. Factory-certified.
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Sale!

Rated 4.33 out of 5
$20.40 Original price was: $20.40.$15.00Current price is: $15.00.
Original Peterbilt 387 Electrical Schematic (73 pages) for post-11.15.05 chassis. Factory wiring diagrams for ABS, HVAC, engine emissions, and more.
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Sale!

Rated 4.67 out of 5
$46.80 Original price was: $46.80.$30.00Current price is: $30.00.
OEM Peterbilt 387 wiring diagram: 59 schematics, symbol key, harness flowchart, power distribution. Factory-certified for accurate diagnostics.
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Sale!

Rated 4.50 out of 5
$56.25 Original price was: $56.25.$45.00Current price is: $45.00.
73-page OEM wiring diagram for Peterbilt 387. Covers power distribution, ABS, HVAC, transmission, and sleeper circuits. Factory schematics, no aftermarket guesswork.
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Sale!

Rated 4.67 out of 5
$54.00 Original price was: $54.00.$40.00Current price is: $40.00.
73-page factory wiring diagram for Peterbilt 387. Covers power distribution, ABS, HVAC, lighting, and more. OEM accuracy.
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Sale!

Rated 4.00 out of 5
$58.40 Original price was: $58.40.$40.00Current price is: $40.00.
Factory Peterbilt 389 electrical schematic – 67 pages covering harness architecture, engine wiring, sleeper configurations, and transmission diagrams.
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Sale!

Rated 4.50 out of 5
$18.00 Original price was: $18.00.$15.00Current price is: $15.00.
67-page factory Peterbilt 389 Electrical Schematic covering all harnesses, engine variants, load centers and VORAD. OEM print with index and block diagram.