Chassis and engine manuals

Chassis body builder guides, engines and transmissions. 8 documents and libraries from 8 makers, each linked at the source.

8 shown
  • Allison publications owner and operatingservice and repairparts and breakdown
    Allison via Allison Transmission keyed by product family plus serial number 1000, 2000, 2400, 3000 and 4000 Series transmissions, operator through service
    paid subscriptionlink checked 2026-09-21
  • GM Upfitter body builder manuals spec sheetbulletin and recallwiring diagraminstallation
    Chevrolet / GMC via GM Upfitter Integration keyed by model year Express, 4500/5500 and Silverado chassis cab manuals with electrical schematics
    we could not check this link automatically
  • Cummins engine manuals owner and operatingwiring diagramservice and repairparts and breakdown
    Cummins keyed by 8-digit engine serial number (ESN) B6.7, ISB, ISL and ISC diesel engines, owner's manuals and wiring diagrams
    free account neededlink checked 2026-09-21
  • Ford Pro upfit publications spec sheetbulletin and recallinstallationowner and operating
    Ford keyed by model year and vehicle line F-53, F-59, E-350/450 and F-600 Body Builder Layout Books and BEMMs
    we could not check this link automatically
  • Freightliner Custom Chassis file library owner and operatingservice and repairspec sheet
    Freightliner Custom Chassis keyed by chassis series (XC, MC, S2RV) RV operator's manual, chassis maintenance manual, towing guide and warranty sheets
    link checked 2026-09-21
  • Isuzu truck service body builder guides spec sheetinstallationservice and repair
    Isuzu keyed by model year and model NPR, NPR-HD, NQR, NRR and FTR body builder guides, service literature is paid
    paid subscriptionlink checked 2026-09-21
  • Mercedes-Benz Sprinter upfitter installationspec sheetbulletin and recall
    Mercedes-Benz Sprinter via Mercedes-Benz keyed by chassis generation and bulletin date Body and Equipment Guidelines keyed by chassis generation, plus technical bulletins
    link checked 2026-09-21
  • Spartan RV Chassis owners resources owner and operatingservice and repair
    Spartan RV Chassis keyed by chassis series (K1 to K4) one operation and maintenance manual covering the K1, K2, K3 and K4 series
    link checked 2026-09-21
Fixing rather than reading

If something has already failed, these guides walk the diagnosis and cite the documents above: