Type D

IC Bus RE Series (2005-present) dimensions

IC Bus (Navistar) · Rear engine · Legacy / used market · Planning estimate

IC's rear-engine transit bus. Same core advantages as any Type D, with the flat floor forward of the engine bay and the huge front windscreen that makes these buses feel far more open inside than a conventional. Generally newer on the used market than the Thomas and Blue Bird equivalents, so expect more electronics and emissions equipment along with the better road manners.

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Dimensions

Overall length35–40 ft
Buildable interior length29–34 ft
Interior width90 in
Interior height77 in
Exterior width96 in

Drivetrain & chassis

DrivetrainCummins or MaxxForce diesel with automatic, engine mounted at the rear

Drivetrain — engine transition confirmed, with more nuance than a simple two-step change

The engine history is more complex than a clean "MaxxForce DT then Cummins" transition, and multiple engine families overlapped or preceded MaxxForce entirely, per a community-maintained encyclopedic wiki source cross-referenced against Wikipedia's own entry:

  • International T444E: 1996(?)–2003/2004 (sources give slightly different end dates: 2001–2004 per one table, other sourcing implies earlier availability).
  • International DT466E: 210–285 hp (157–213 kW), 1996–2007/2008 (again, minor date discrepancy between sources: one table gives 1996–2007, another 2001–2008).
  • International DT530E: 1996–2002.
  • International VT 365: 2003/2005–2007/2008 (EPA 2004 emissions rating).
  • International MaxxForce 7: EPA 2007 rating, 2007–2010.
  • International MaxxForce DT: 210–285 hp, 2007–2010; 215–285 hp (2010–2013 per Wikipedia's cleaner two-step table) or more granularly 215/230/245/260/285 hp (EPA 2010, 2010–2013) and 210/225/230/245/255/285 hp (2013–2017) per the more detailed community wiki table. Individual data-plate records confirm a 2009-model unit with MaxxForce DT 7.6L turbo diesel.
  • Cummins L9: 8.9L, 200–260 hp (150–190 kW) per the historical spec table, 2017–2023/2024; current IC Bus commercial literature for the continuing "RE Series" product lists Cummins L9 at up to 300 hp and 860 lb-ft torque, 4.49x5.69 in bore/stroke, 8.9L (543 cu in) displacement, dry weight 1,695 lb (769 kg), with three power ratings: 260 hp/720 lb-ft, 270 hp/800 lb-ft, and 300 hp/860 lb-ft. This is a meaningfully higher top-end (300 hp) than the 260 hp figure in the historical 2017–2023 table, suggesting either a mid-run power upgrade or a difference between the discontinued original RE Series and IC Bus's current same-named commercial product — flagged as a discrepancy rather than resolved.
  • No CNG, propane, or electric variant of the RE Series was found in this research; this should be treated as not verified/likely not offered rather than assumed to exist, since no source reviewed mentions any alternative-fuel RE Series variant.

Transmissions: Allison PTS 2500 series (5-speed automatic, standard on earlier years), Allison PTS 3000 series (6-speed automatic); current production specifies Allison 3000PTS with direct-mount cooler.

Engine bay layout and service access: current IC Bus commercial literature confirms two engine doors for access — a left side door and a rear engine access door — described as providing "easy access to components like the side-mounted" [equipment, text truncated in source]. The rear engine compartment's length consumption relative to total body length was not independently quantified as a specific figure in the sources reviewed and should be treated as not verified; however, the RE Series' 96 in (2,438 mm) constant exterior width across all lengths combined with the documented 78 in (1,981 mm) interior headroom figure in current commercial literature gives converters a starting point for their own floor-length calculations, consistent with the requester's stated intent to calculate buildable floor length independently.

Buying guidance

  • Strengths: all-steel cage body construction with 16-gauge steel side sheets and solid steel flooring is confirmed in current manufacturer marketing as a durability feature; wide, well-documented wheelbase range (four to five options) gives converters real flexibility in matching floor length to intended layout; two-door engine access (side plus rear) is a genuine serviceability advantage for a rear-engine layout, reducing how much interior floor needs to be disturbed for major service; the Cummins L9 (2017+) carries a widely cited reputation as a dependable medium-duty engine with replaceable cylinder liners for easier in-frame rebuilds.
  • Cautions: the MaxxForce DT era (2007–2017) carries a documented, industry-wide reliability reputation problem tied specifically to EGR-based emissions control — Navistar itself abandoned the MaxxForce engine family industry-wide specifically "due to the use of EGR emissions treatment systems," a manufacturer-level admission of the underlying design problem rather than a mere community rumor; buyers should treat 2007–2017 MaxxForce-equipped RE units with more caution regarding emissions-system reliability than either the earlier DT466E/T444E era or the later 2017+ Cummins L9 era; the naming/date discrepancies between different manufacturer-adjacent sources (T444E and DT466E end dates vary by a few years between tables) mean buyers should verify the specific engine and its production date directly from the individual unit's data plate rather than assuming a model-year-to-engine mapping from any single table; discontinuation after the 2024 model year means the platform is no longer in production and buyers should expect used-market sourcing going forward.
  • Community-preferred combination: this research did not locate a dedicated skoolie-community forum thread specifically ranking RE Series engine-year preferences (as was found for the International 3800's DT466/DT466E distinction in the companion Type C report); the MaxxForce reliability caution above is corroborated at the manufacturer-admission level, which is stronger evidence than typical community folklore, but a specific "buy this year" community consensus for the RE Series specifically was not found and should be treated as not verified pending further community-forum research — flagged explicitly as a gap rather than invented.

Strengths and cautions

Check before you buy

  • Dimensions here are planning estimates from community data, not an OEM spec sheet.
  • Wheelbase, GVWR and drivetrain are build-order data - confirm on the vehicle.

Will a bed fit crosswise?

Interior width is about 90 inches before framing and panelling.

Twin crosswise (75″) Fits, about 15″ spare
Full / double crosswise (75″) Fits, about 15″ spare
Queen crosswise (80″) Fits, about 10″ spare
King crosswise (80″) Fits, about 10″ spare

Similar platforms

Figures here are community planning estimates rather than an OEM spec sheet. Treat them as a starting point and measure your own vehicle.
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