New 2021 V8 Jeep® Wrangler Rubicon 392

Jeep
3 min read
4X4X470: New 2021 V8 Jeep® Wrangler Rubicon 392
4X4X470: New 2021 V8 Jeep® Wrangler Rubicon 392 ©
Nov. 17. 2020
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Toledo, Ohio, U.S. - Wrangler Rubicon 392 marks return of a production V8 to the Wrangler engine bay after nearly 40 years

For enthusiasts who crave soul-stirring, legendary off-road performance and a new level of on-road performance, Jeep® has introduced the V8-powered 2021 Jeep Wrangler Rubicon 392 for customers in the North American market.

The most-capable, quickest, most-powerful Wrangler carries the 6.4-litre V8, with 470hp and 637Nm of torque. Mated to the crisp-shifting TorqueFlite eight-speed automatic transmission and Selec-Trac full-time active transfer case, the powerplant rockets the Jeep Wrangler Rubicon 392 from zero to 60 mph 4.5 seconds and the quarter-mile in 13.0 seconds.

Away from the pavement, the potent powertrain of the Trail Rated® Wrangler Rubicon 392 meshes with heavy-duty wide track Dana 44 axles, a 3.73 final drive ratio, transmission torque converter lockup control, a 2-inch lift and standard 33-inch tyres on 17-inch beadlock-capable wheels.

The result is the most-capable Jeep Wrangler ever with 10.3 inches of ground clearance, improved suspension articulation and manoeuvrability, approach/breakover/departure angles of 44.5/22.6/37.5 degrees and the ability to traverse up to 825mm of water.

Jeep engineers put it to the test: The 2021 Jeep Wrangler Rubicon 392 confidently climbs up and down steep grades with minimal throttle and brake input.

“This is the most-powerful, quickest, most-capable Jeep Wrangler we’ve ever built,” says Jim Morrison, head of Jeep brand – FCA North America. “The factory lift and abundant low-end torque from the V8 makes the Rubicon 392 the king of the hills, whether you’re rock crawling at low speeds or powering up an incline. And when pavement replaces dirt, Rubicon 392 makes quick work of the road.”

The 2021 Jeep Wrangler Rubicon 392 goes on sale in North America in the first quarter of 2021.

The addition of the 6.4-litre engine marks the first time in nearly 40 years a V8 has been a factory option for the Wrangler. Tuned specifically for the Jeep Wrangler Rubicon 392 and its functional bonnet scoop, the engine produces 470hp and 637 Nm of torque.

Critical to performance on-road and off, nearly 75 percent of the peak torque from the Wrangler Rubicon 392 is available just above engine idle speed. This delivers exciting performance, whether enabling a 4.5-second zero to 60mph time or crawling up steep grades.

The performance of the 6.4-litre V8 is based on a cast iron cylinder block and aluminium heads, accented with an active intake manifold, variable camshaft timing, twin spark plugs per cylinder, sodium-filled exhaust valves, hollow-stem intake valves and piston oil cooling jets. The Wrangler Rubicon 392 engine is fitted with a rear-sump oil pan, high-mount alternator and free-flowing exhaust manifolds.

Fuel Saver Technology with cylinder deactivation seamlessly shifts to smooth, high-fuel-economy four-cylinder mode when engine loads are light, such as cruising on the motorway. A tank-mounted, high-performance pump keeps the V8 fueled under even the most demanding conditions.

A functional bonnet scoop feeds the engine in the Wrangler Rubicon 392 with cool, denser, outside air, which leads to enhanced performance.

Jeep engineers ensured the V8 engine gets fresh air, regardless of the terrain and weather. The Wrangler Rubicon 392 features a Hydro-Guide™ air intake system with a tri-level ducting system and 56 litres per minute – away from the engine’s incoming air. This enables the Wrangler Rubicon 392 to traverse water up to 825mm deep worry free, even if a bow wave washes over the bonnet.

Should the functional bonnet scoop become restricted by snow, mud or debris,a secondary air path within the bonnet structure feeds the engine, making it possible for the Wrangler Rubicon 392 to reach top speed even with a fully blocked primary air path.

An active dual-mode exhaust is standard to deliver an exhilarating and unmistakable sound. The system engages automatically, opening valves in the exhaust system, under higher engine loads to reduce exhaust back pressure. The driver can also activate the system with the press of a button. The dual-pipe performance exhaust system is finished off with unique quad exhaust tailpipes.

The Jeep Wrangler Rubicon 392 chassis includes upgraded frame rails, front upper control arms and cast iron steering knuckles to take full advantage of its power and torque . Heavy-duty brakes bring the Wrangler Rubicon 392 to a composed stop no matter the terrain.

The off-road prowess of the Wrangler Rubicon 392 flows from its wide track, heavy-duty Dana 44 front and rear axles with thicker axle tubes and Tru-Lok electronic locking differentials. An electronic front sway-bar disconnect maximises suspension travel for the most-demanding off-road conditions.

Augmenting the proven five-link front and rear suspension, the Wrangler Rubicon 392 comes with a 2-inch factory lift and is fitted with specially-tuned high-performance FOX aluminium monotube shocks to maximise handling and comfort.