Photo of Rv
Photo of Rv
Photo of Rv
  • Price: $45,000
  • Year: 2004
  • Model: KOUNTRY STAR 3904
  • Property ID: 7081969
  • Partner ID: 5042176194
  • Posted On: Sep 18, 2026
  • Updated On: Sep 18, 2026

RV Description

2004 Newmar Kountry Star 3904 NEW Cat Engine (5k Mi), FlexArmor Roof, Loaded!

Overview
For sale is a meticulously maintained, exceptionally upgraded 2004 Newmar Kountry Star 3904 diesel pusher. If you know Newmar, you know the build quality is legendary. What makes this specific coach entirely unique is that the two largest financial risks of buying an older diesel pusherthe engine and the roofhave already been completely resolved with premium, top-tier upgrades.

The coach currently has 68,670 original chassis miles, but features a brand-new engine and a lifetime roof. It has been strictly stored under a cover when not in use and comes with an impeccable, detailed folder of maintenance records and repair receipts.

The Ultimate Mechanical & Structural Upgrades
BRAND NEW Caterpillar Diesel Engine: Installed at 63,636 miles, meaning this fresh Cat engine has only 5,034 miles on it today (Current odometer: 68,670). It runs flawlessly, handles mountain passes with ease, and offers the ultimate peace of mind. Full shop replacement receipts are on hand.

FlexArmor Sprayed-On Rubber Roof: Say goodbye to roof maintenance, chalking, and seam leaks forever. The roof was upgraded to a seamless, commercial-grade FlexArmor sprayed roof. This is a premium $7,000+ upgrade that provides a virtual lifetime fix against water intrusionthe #1 killer of motorhomes.

Upgraded Interior & Premium Creature Comforts The interior is clean, spacious, and highly upgraded for modern traveling or comfortable extended stays:
Kitchen Upgrades: Equipped with a brand-new residential-grade Microwave/Convection Oven combo.
Entertainment: The living area has been upgraded with a crisp, modern LG Flat-Screen TV.
Laundry: Features a highly convenient onboard Washer/Dryer combo unitno laundromats required.

Exterior & Cargo Bay Bonuses
Outdoor Entertainment: Includes a custom pull-out TV built into the exterior bay for tailgating, patio viewing, and outdoor movie nights.
Extra Cold Storage: The pass-through cargo bays include a dedicated cargo bay freezer and ice maker, perfect for stocking up on long trips, storing extra ice, or keeping the catch of the day fresh.

Storage History:
This rig has been lovingly preserved and stored under a specialized RV cover, keeping the gel coat, decals, and window seals protected from harsh UV damage.

Buyer Note & Documentation
We have a complete folder containing the repair receipts for the new engine, the FlexArmor documentation, and years of meticulous routine maintenance records.
This coach is entirely turn-key, mechanically bulletproof, and ready to take you cross-country tomorrow. Serious inquiries only. Shown by appointment.

Tire Condition Note: The tires have excellent tread depth and show zero signs of dry rotting or sidewall cracking, as the coach has been stored under a cover. While they are appear to be fine for local transport or driving the coach home, they are approaching the end of their recommended calendar lifespan for heavy cross-country traveling, and the asking price has already been adjusted to reflect this.

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