Our RV Home

2018 Tiffin Allegro Bus 40AP

This page is dedicated to our motorhome. I’ll keep manuals, information, reference material and any modifications that I do.

Floor Plan

We have the optional L-shaped couch which we love. Also we left the recliner chair at home, this gives us a place for the dogs water and bowls. We selected the King size bed along with washer and dryer, drawer dishwasher, residential refrigerator, AquaHot, heated floors, 3 AC units which are heat pumps, dual pane windows, Wolf Induction cooktop and a 10kw Onan generator. It’s all electric so we don’t have to worry about carry propane. It also have the basement freezer and two of the basement storage areas have electric trays.

2018 AP 40
2018 AP 40



  • Cummins ISL I6 8.9L Diesel
  • Cylinders 6
  • Horsepower 450 hp @ 2,100 RPM
  • Torque 1,250 ft-lbs. @ 1,400 RPM
  • Displacement 9 litres
  • Fuel Injected
  • Turbocharged
  • Tiffin Powerglide Chassis


  • Allison 3000MH 6 Speed Automatic


  • Length 40.92 ft. (491 in.)
  • Width 8.42 ft. (101 in.)
  • Height 12.58 ft. (151 in.)
  • Interior Height 7 ft. (84 in.)
  • Wheelbase 23 ft. (276 in.)

2018 Tiffin Allegro Bus

Chassis/Engine/Transmission Manuals

Other Coach Manuals

All Other Manuals

Modifications and Additions

  • Engine fire suppression system
  • Portable EMS-PT50X RV Surge & Electrical Protector
  • CoachProxy which allow us to control most items via a tablet, PC or cell phone.
  • Waste Master conversion from bayonet to cam lock system for black/grey tank hose
  • Added an 120v electrical receptacle in the walk in closet for the electronics (Synology NAS, switch and wireless router)
  • Synology 12 TB NAS for storage, music and movies
  • Plex Media Server
  • Amazon Alexa 10″ Echo
  • RF Mogul Satellite Antenna
  • Using Dish Network Hopper 3 which allows us to record on 16 channels at one time and it holds 2000 hours of recording.
  • SureCall Fusion4Home Cell Phone Signal Booster and Ubiquiti Bullet M 2.4 GHz Titanium / L-COM HGV-2409U ANTENNA, OMNI, 2.4GHZ all attached to a Tarheel Lift & Lay Antenna Mount.
  • Icom IC-2820H ham radio and antenna
  • HP LaserJet Pro M15w Wireless Laser Printer
  • Crimson AV AU65 Articulating Mount for the outside TV

Other Information