2026 Jeep Grand Wagoneer Summit L 4WD
The 2026 Jeep Grand Wagoneer Summit L 4WD is a 420-hp 3.0-liter twin-turbocharged wagon with an 8-speed torqueflite 880re automatic overdrive and four-wheel drive. It is rated at 18 mpg combined.
| Spec | Value |
|---|---|
| Engine | |
| Engine Type | 3.0-liter Hurricane Twin Turbo inline six-cylinder (I-6); twin turbocharged gasoline direct injection; deep-skirt cast-aluminum block, aluminum alloy head |
| Displacement | 3 L |
| Horsepower | 420 hp |
| Torque | 468 lb-ft |
| Redline | 5,800 rpm |
| Valvetrain | DOHC; 24 valves (4 per cylinder); dual independent valve timing (DIVT); hydroformed tubular camshafts; sodium-filled exhaust valves; roller finger followers; hydraulic lash adjusters |
| Bore and Stroke | 84.0 x 90.0 |
| Compression Ratio | 10.4:1 |
| Injection Type | Gasoline direct injection (GDI); centrally located injectors; single high-pressure pump up to 5,075 psi (350 bar) |
| Drivetrain | |
| Drive Type | 4WD (full-time active) |
| Differential Type | Front: open (8.5" ring gear); Rear: limited slip differential (standard); ELSD optional (10.2" ring gear) |
| Transmission | |
| Transmission | 8-speed TorqueFlite 880RE automatic overdrive with electronic range select and start/stop; 8.6 overall ratio spread |
| 1st Gear | 5.5 (28 mph **) |
| 2nd Gear | 3.52 (44 mph **) |
| 3rd Gear | 2.2 (71 mph **) |
| 4th Gear | 1.72 (91 mph **) |
| 5th Gear | 1.301 (120 mph **) |
| 6th Gear | 1 (156 mph **) |
| 7th Gear | 0.833 (187 mph **) |
| 8th Gear | 0.64 (244 mph **) |
| Reverse | 4.543 |
| Final Drive | 3.55 |
| Fuel Economy | |
| City | 16 MPG |
| Highway | 22 MPG |
| Combined | 18 MPG |
| Recommended Fuel | Mid-grade unleaded (89 octane recommended); regular 87 octane acceptable |
| Tank Capacity | 30.5 gal |
| Suspension | |
| Front Suspension | Short-and-long-arm (SLA) independent; hybrid steel-composite upper control arm; aluminum lower control arm and knuckle; coil springs with monotube shocks (standard) or Quadra-Lift air suspension with semi-active damping (optional) |
| Rear Suspension | Five-link independent; forged aluminum links (tension, compression, camber, toe); high-strength steel spring link; coil springs with monotube load-leveling shocks (standard) or Quadra-Lift air suspension with semi-active damping (optional) |
| Front Stabilizer Bar | Yes |
| Rear Stabilizer Bar | Yes (hollow) |
| Brakes | |
| Front Brake Calipers | Two-piston pin-slider caliper; 2.24" (57 mm) |
| Front Brake Disc | 14.88" x 1.18" ventilated disc; power-assisted electronic booster (eBooster); ABS |
| Rear Brake Disc | 14.76" x 0.87" solid disc; power-assisted |
| Tires & Wheels | |
| Wheels Front | 22 x 9J (cast aluminum alloy) |
| Wheels Rear | 22 x 9J (cast aluminum alloy) |
| Tires Front | 285/45R22XL all-season (Pirelli Scorpion Verde) |
| Tires Rear | 285/45R22XL all-season (Pirelli Scorpion Verde) |
| Dimensions & Weight | |
| Length | 228.1 in |
| Width | 83.6 in |
| Height | 79.7 in |
| Wheelbase | 130 in |
| Front Track | 68.5 in |
| Rear Track | 68.3 in |
| Ground Clearance | 7.4 in |
| Approach Angle | 21.4° |
| Departure Angle | 21.2° |
| Cargo Volume | 42.6 ft³ |
| Curb Weight | 6,444 lbs |
| Weight Distribution (F/R) | 52% / 48% |
| Interior | |
| Headroom Front | 41.3 in |
| Headroom Rear | 2 in |
| Legroom Front | 40.9 in |
| Legroom Rear | 2 in |
| Shoulder Room Front | 66.1 in |
| Shoulder Room Rear | 2 in |
| Hip Room Front | 63.5 in |
| Hip Room Rear | 2 in |
** Theoretical max speed per gear at redline