Location: Ammon, Idaho
Asking Price: $14,500
Update: 9/5/2026 – This listing was sold!
You are looking at this 1978 GMC Kingsley 26FT — available for sale by owner in Ammon, Idaho! A 3 hour drive north of Salt Lake City, Utah.
As of the time of this post, it is still available – you can find current pricing and contact the seller at the ad in our marketplace. If you want to skip our write-up, a direct link to that is at the bottom of this page just below the pictures.
This is a verified Featured Listing in our Marketplace.
Summary
1978 GMC Kingsley 26’ motorhome powered by the Oldsmobile 403 V8 paired with a Turbo-Hydramatic 425 transmission. This classic GMC coach is available on consignment and offers a unique vintage motorhome experience. Located in Ammon, Idaho.
Key Info:
- Location: Ammon, ID
- Year: 1978
- Length (ft): 26
- Type: Motorhome
- Model / Trim: Kingsley
- Engine: Oldsmobile 403 V8
- Transmission: Turbo-Hydramatic 425
Seller Write-up
To view this motorhome, its on consignment at https://www.idahotoyhaulers.com/majorunit/Pre-Owned_1978_GMC_Kingsley_For_Sale_Ammon_ID/C01733ID.
Photo Gallery
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CLICK HERE to view this 1978 Kingsley 26FT in our Marketplace
**Please note this GMC RV was originally listed for sale in July of 2026. Depending on when you are viewing this article it may have since been sold.**
Last Updated on September 6, 2026 by GMC RV Ads
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