If you've been searching for a capable, battle-tested off-roader that doesn't compromise on street manners, the 2020 Jeep Wrangler Unlimited Rubicon for sale at AMERICAN FLEET in Fontana, California is worth a serious look. Finished in a commanding black exterior and loaded with Rubicon-grade hardware from the factory, this four-door Wrangler is built for buyers who want the real thing — not a trimmed-down compromise. With 118,014 miles on the odometer, this is a truck that's been lived in, and for the right buyer, that's exactly the point.
 

About This 2020 Jeep Wrangler Unlimited Rubicon

The Wrangler Unlimited Rubicon sits at the top of the Wrangler trim hierarchy for a reason. From the factory, it comes equipped with features that most off-road enthusiasts would otherwise spend thousands adding aftermarket. At 118,014 miles, this 2020 model is solidly mid-life for a Wrangler — a nameplate that routinely runs well beyond 200,000 miles with regular maintenance. The black exterior gives it a stealthy, aggressive presence whether it's on the freeway or on the trail. If you've been shopping used Jeep Wranglers in the Fontana area or anywhere in San Bernardino County, this Rubicon trim is a significant step above the Sport and Sahara versions you'll find at similar price points.
 

2020 Jeep Wrangler Unlimited Performance and Engine

Under the hood sits Jeep's proven 3.6-liter Pentastar V6 engine with Variable Valve Timing (VVT), producing approximately 285 horsepower and 260 lb-ft of torque. Paired with an 8-speed automatic transmission and a full-time 4WD system, this powertrain delivers a balanced blend of on-road refinement and off-road muscle. The Rubicon's Command-Trac or Rock-Trac 4WD system — depending on original configuration — includes a lower crawl ratio than any other Wrangler trim, making it uniquely capable on technical terrain. The 8-speed automatic keeps highway RPMs low for better fuel economy during those longer drives through the Inland Empire and out toward the high desert. Whether you're heading up into the San Bernardino Mountains or cruising the I-10 through Fontana, this drivetrain handles both with confidence.
 

2020 Jeep Wrangler Unlimited Rubicon Features and Interior

Off-Road Hardware

The Rubicon trim includes factory locking front and rear Dana 44 axles, electronic sway bar disconnect, and 33-inch off-road tires — features that make a dramatic difference on rocky or uneven terrain. These aren't optional add-ons; they're baked into the Rubicon's DNA.
 

Interior and Technology

Inside, the Wrangler Unlimited's four-door configuration provides genuinely usable rear seat space — a major advantage over the two-door model for families or adventure groups. The 2020 model year brought meaningful interior upgrades across the Wrangler lineup, including Jeep's Uconnect infotainment system with an available touchscreen, Apple CarPlay and Android Auto compatibility, and improved material quality throughout the cabin. The Rubicon trim also adds unique interior badging and a more premium overall feel compared to base trims.
 

Jeep Wrangler Reliability and Ownership

The Jeep Wrangler has one of the most loyal owner communities of any vehicle on the market — and for good reason. The JL-generation Wrangler (2018–present), which includes this 2020 model, addressed many of the reliability concerns associated with earlier generations. The 3.6-liter Pentastar V6 is a known quantity with a strong long-term track record when properly maintained. Common ownership considerations at this mileage include inspecting the cooling system, checking for any oil consumption, and ensuring the front axle seals and driveshaft U-joints are in good shape — standard checks for any higher-mileage 4WD vehicle. The good news: Wrangler parts are widely available, mechanic familiarity with these trucks is extremely high throughout Southern California, and the Jeep community offers a wealth of DIY resources for owners who want to stay hands-on. Many Rubicon owners routinely push 200,000 to 250,000 miles with normal upkeep.
 

Why Buy From AMERICAN FLEET in Fontana, California

AMERICAN FLEET is located in Fontana, in San Bernardino County — one of Southern California's most active used vehicle markets. As a fleet-focused dealer, AMERICAN FLEET sources and sells vehicles that have typically been maintained on regular service schedules, which is a meaningful advantage when shopping higher-mileage inventory. Their team understands that buyers in the Inland Empire are savvy shoppers who do their homework, and they work to present vehicles honestly and price them competitively. Whether you're coming in from Rialto, Ontario, Rancho Cucamonga, or further out in San Bernardino County, AMERICAN FLEET offers a no-pressure environment to inspect and test drive this Wrangler before you commit.
 

Financing a Used Jeep Wrangler Near Fontana

Financing a used vehicle with over 100,000 miles doesn't have to be complicated. AMERICAN FLEET works with a range of lenders to find solutions for buyers across the credit spectrum — whether you have excellent credit, are rebuilding, or are financing a used vehicle for the first time. Buyers throughout Fontana and the greater San Bernardino County area can often get pre-qualified quickly. It's worth calling ahead at 909-320-2027 to discuss your financing situation before you visit, so the team can have options ready when you arrive. Putting a Rubicon in your driveway may be more attainable than you think.
 

Frequently Asked Questions

Is the 2020 Jeep Wrangler Unlimited Rubicon a good buy?

Yes — the 2020 Rubicon is widely regarded as the definitive off-road Wrangler. Its factory locking axles, sway bar disconnect, and upgraded 4WD system make it genuinely trail-ready without needing aftermarket modifications. The JL generation also improved interior quality and on-road driving dynamics significantly over previous generations.
 

Is 118,000 miles too many for a Jeep Wrangler?

Not for a Wrangler. These trucks are engineered for demanding use and routinely exceed 200,000 miles with proper maintenance. The 3.6-liter Pentastar V6 is a durable engine with a long service life. A thorough pre-purchase inspection is always recommended, but high mileage alone shouldn't disqualify a well-maintained Wrangler.
 

What does the Rubicon trim include that other Wranglers don't?

The Rubicon adds factory locking front and rear Dana 44 axles, an electronic front sway bar disconnect for increased wheel articulation, a Rock-Trac 4WD system with a 4:1 crawl ratio, heavy-duty rock rails, and 33-inch all-terrain tires. These features represent thousands of dollars in upgrades over the Sport and Sahara trims.
 

What is the fuel economy on a 2020 Jeep Wrangler Unlimited with the V6?

The 2020 Wrangler Unlimited with the 3.6-liter V6 and 8-speed automatic is EPA-rated at approximately 17 mpg city and 23 mpg highway. Real-world figures will vary based on driving habits, tire size, and whether the vehicle has any lift or aftermarket modifications.
 

Can I use a 2020 Jeep Wrangler Rubicon as a daily driver?

Absolutely. The JL-generation Wrangler was specifically designed to close the gap between off-road capability and daily drivability. The 8-speed automatic, improved steering, and updated suspension make the Unlimited Rubicon comfortable for highway commutes while remaining fully capable on weekends.
 

Serving Fontana and Surrounding Areas in San Bernardino County

AMERICAN FLEET proudly serves buyers throughout the Inland Empire and the broader San Bernardino County region. Customers regularly make the drive from Rialto, Ontario, Rancho Cucamonga, Upland, Chino, San Bernardino, Redlands, and Colton to shop the inventory at AMERICAN FLEET in Fontana. Whether you're coming from the western edge of the county near the LA County line or from communities further inland, Fontana is centrally located along the I-10 corridor and easy to reach from virtually anywhere in the region. If you've been searching for a used Jeep Wrangler Rubicon near San Bernardino County, this is a vehicle worth the trip.
 

Contact AMERICAN FLEET Today

Ready to get behind the wheel of this 2020 Jeep Wrangler Unlimited Rubicon? Call AMERICAN FLEET at 909-320-2027 to confirm availability, ask questions about the vehicle's history, or schedule a test drive. The team at AMERICAN FLEET in Fontana, California is ready to help you drive home in one of the most capable used Wranglers in San Bernardino County. Don't wait — black Rubicons at this price point move fast.