1978 Royale 26FT w/ Cadillac 500 EFI in Cosmopolis, WA

Last Updated: 5/2/2021 | Ad Source: Direct

Location: Cosmopolis, Washington

Asking Price: $29,900

1978 Royale Cosmopolis WA

Motorhome Features

  • Model Year: 1978
  • Odometer: 7,010
  • Trim: Royale
  • Length: 26FT

Seller Information

  • Seller Type: Private Owner
  • Contact Name: John S.
  • Phone: (360) 580-0614
  • Email: [email protected]

Description & More Pictures

1972 Caddy 500+ci with self-learning electronic fuel injection system; “RV” cam; built late 2015; smooth running and has about 20k miles; significantly more torque than the Olds 455 or 403 engines. Heavy duty engine compartment “blanket” system installed, reducing decibel and heat levels substantially. Rear disc brakes kit installed (2016) for much improved stopping performance. All new tires in last 5,000 miles.

In the last 3 years the front end (ball joints, bushings, etc.) was completely rebuilt, remote cold air intake installed, new Transmission by Manny, new Honda EV6010 6k water-cooled generator, new 10g LPG/120VAC hot water tank

This coach was totally rebuilt inside and out in about 1995, complete with new paint, cabinets, mechanical—even etched windows. Rear queen bed w/lots storage; day/night sliding shades throughout coach; ceiling/roof AC/heat unit running on 120VAC with ability to install a second unit.

Digipanel engine monitoring system; electric wiper conversion; 2 – 6VDC series 24 size house batteries w/water filling system; regular 12VDC starting battery; Marine auto charging system so one or both batteries will charge when not in “combined” status); Marine style “On – Combined” switch; newer 12VDC charging system. 500W inverter in rear of the coach (used to charge bike batteries while on the hitch rack and to run CPAP at night).

Aux electric vacuum pump (mandatory if you want brakes when engine dies); there is a backup propane source, a portable 3g tank; DRL system for headlights; Large Zip Dee awning w/supplemental supports, as well as 2 small awnings on driver’s side; Dual hi/lo rearview cameras; Fire suppression system for engine compartment.

Nice large fridge/freezer (LPG/12VDC/120VAC); 2-burner LPG cooktop; 120VAC microwave; stock air bags w/wi-fi control; Alcoa aluminum wheels w/SS center caps; Micro-lock hydraulic parking brake (w/chocks); 30’ of 50A 120VAC cable; newer radiator (OEM brass style for best engine & tranny cooling); stock fuel (50g), gray & black tanks; 40g water w/accumulator.

Very comfortable Flexsteel white leather capt chairs ($1k ea. in 2001); All LED interior & exterior lighting except the updated halogen square headlights, plus LED red/white cockpit ceiling light; Pex plumbing w/new faucets; outside shower; dry bath w/original shower (big enough for 6-3, 240#); new toilet.

Nice Alcoa aluminum wheels with SS centercaps. Several Ragusa cast aluminum accessories; chrome exterior handle & LED motion porch light, along with 12VDC LED strip under the awning.

TPMS system which also monitors wheel/bearing heat; bluetooth stereo; Ramco power mirrors; newer headlight/taillight mod’s; 2-way ceiling fan w/screen & cover; 2nd non-powered vent (formerly 2nd AC unit); aux air system for horns, tires, misc.; accessories for tire changing; HD trailer hitch. Large cargo pod on roof (height overall: 9.5’). Custom door restraint system to prevent any banging and/or distortion of door.

John, 360.580.0614 (call/text) [email protected]
Pictures: https://photos.app.goo.gl/CUBdhfjxTvrnFkNe7

Last Updated on May 2, 2021 by GMC RV For Sale

About GMC RV For Sale 273 Articles
GMCRVForSale.com is a North American ads aggregator focused on (1973 - 1978) Classic GMC Motorhomes. This site features both directly submitted and reposted listings from Craigslist, eBay, RV Trader and more.


  1. Do the two burners live under the blue mat as shown in the photos? How about a photo or two of the shower? You should make the bed and re-shoot the bedroom. A photo of the driver’s captain chair and set up. A set of photos showing the outside awnings.

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