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JEEP® GRAND CHEROKEE SRT8 SPECIFICATIONS 1
2012 Jeep
® Grand Cherokee SRT8®
SPECIFICATIONS
All dimensions are in inches (millimeters) unless otherwise noted. All dimensions are measured at curb weight
with standard tires and wheels.
Note: Information shown is correct at time of publication, and is subject to change without notice.
GENERAL INFORMATION
Body Style Four-door sport-utility vehicle
Construction Steel un******
Assembly Plant Jefferson Avenue North Assembly Plant, Detroit, Mich.
EPA Vehicle Class Multi-purpose vehicle
Introduction Summer 2011 as a 2012 model
ENGINE: 6.4-LITER HEMI
® V-8 WITH FUEL SAVER TECHNOLOGY
Availability Standard
Type and De******ion 90-degree V-type, liquid-cooled
Displacement, cu. in. (cu. cm.) 392 (6,424)
Bore x Stroke 4.09 x 3.72 (103.9 x 94.5)
Valve System Pushrod-operated overhead valves, 16 valves with sodium-filled exhaust valves
and hollow stem intake valves, 16 conventional hydraulic lifters, all with roller tips
Fuel Injection Sequential, multi-port, electronic, returnless; automatic features Fuel Saver
mode
Construction Deep-skirt cast-iron block with cross-bolted main bearing caps, aluminum alloy
heads with hemispherical combustion chambers
Compression Ratio 10.9:1
Power (est.) (SAE J2723) 465 hp (347 kW) at 6,000 rpm
Torque (est.) (SAE J2723) 465 lb.-ft. (630 N•m) at 4,200 rpm
Max. Engine Speed 6,400 rpm (electronically limited)
Fuel Requirement Premium 91 octane (R+M)/2 — recommended
Oil Capacity, qt. (L) 7 (6.6)
Coolant Capacity, qt. (L) 14 (13.25)
Factory Oil Fill 5W-40 Synthetic
Emission Controls Dual close-coupled three-way catalytic converters, quad-heated oxygen sensors
and internal engine features(a)
EPA Fuel Economy mpg
(City/Hwy) 12/18 (est.)
Assembly Plant Saltillo Engine Plant, Saltillo, Mexico
(a) Meets Federal Tier 2, Bin 5 emissions requirements; marketed in California as an LEV II (Low Emission Vehicle)
under cleanest vehicle rules.
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JEEP® GRAND CHEROKEE SRT8 SPECIFICATIONS 2
TRANSMISSION: W5A580 FIVE-SPEED AUTOMATIC
Availability Standard with 6.4-liter HEMI engine
De******ion AutoStick driver interactive manual control and electronically-modulated torque
converter clutch
Gear Ratios
1
st 3.59
2nd 2.19
3rd 1.41
4th 1.00
5th 0.83
Reverse 3.16
Final Drive Ratio 3.70:1 – ZF Electronic Limited Slip Differential
Overall Top Gear 3.07
TRANSFER CASE: MP 3010
Availability Standard with 6.4-liter HEMI engine
Type Single-speed, electronic proportioning
Operating Modes Full-time 4WD
Torque Split, Front/Rear Variable - 50/50 Snow and 35/65 Sport and Track
FRONT AXLES
Differential Type Conventional
Availability Standard with 6.4-liter HEMI engine
Ring Gear Diameter 7.7 (195)
Axle Ratio 3.70:1
REAR AXLES
Differential Type Electronic Limited Slip Differential (ELSD)
Availability Standard with 6.4-liter HEMI engine
Ring Gear Diameter 9 (230)
Axle Ratio 3.70:1
ELECTRICAL SYSTEM
Alternator Standard 220-amp
Battery Group 65 maintenance-free 750CCA
DIMENSIONS AND CAPACITIES
Wheelbase 114.8 (2,915)
Track, Front 63.7 (1,618)
Track, Rear 64.3 (1,633)
Overall Length 191.3 (4,859)
Overall Width (Width at Mirrors) 84.9 (2,156)
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JEEP® GRAND CHEROKEE SRT8 SPECIFICATIONS 3
Body Width 77.1 (1,958)
Overall Height (at Roof Rail/at Antenna) 69.1/76.9 (1,756 /1,952)
Load Floor Height 32.4 (823)
Sill Step Height 20.7 (527)
Minimum Ground Clearance 8.3 (210.8)
Chassis (Fuel Tank) 9 (230)
Front Axle 8.97 (227.8)
Rear Axle 8.99 (228.3)
Approach Angle, Degrees 18.45
Ramp Breakover Angle, Degrees 17.84
Departure Angle, Degrees 21.9
Frontal Area, sq. ft. (sq. m.) 31.0 (2.88)
Drag Coefficient Approximately 0.40
Aero CdA 12.5 (Cd x cross-sectional area)
Fuel Tank Capacity, gal. (L) 24.6 (93.1)
ACCOMMODATIONS
Seating Capacity, Front/Second 2/3
Front Seat
Head Room 39.9 (1,013)
Legroom 40.3 (1,025)
Shoulder Room 58.7 (1,491)
Hip Room 57.0 (1,449)
Seat Travel 11.0 (280)
SAE Volume, cu. ft. (cu. m.) 54.6 (1.55)
Rear Seat
Head Room 39.2 (995)
Legroom 38.6 (981)
Shoulder Room 58.0 (1,474)
Hip Room 56.2 (1,428)
Knee Clearance 4.3 (110)
Couple 34.6 (880)
SAE Volume, cu. ft. (cu. m.) 50.8 (1.4)
Cargo Volume
Behind Rear Seat, cu. ft. (cu. m.) 35.1 (0.99)
Rear Seats Folded, cu. ft. (cu. m.) 68.7 (1.95)
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JEEP® GRAND CHEROKEE SRT8 SPECIFICATIONS 4
MODEL ENGINE GVWR
(a) lbs. (kg) CURB WEIGHT(b) lbs. (kg) PAYLOAD(c) lbs. (kg)
4WD
SRT8 6.4-liter 6,500 (2,948) 5,150 (2,336) 1,350 (612)
(a) Gross Vehicle Weight Rating.
(b) Curb weight includes standard equipment and full quantities of fuel, lubricant and coolant.
(c) Payload is the maximum allowable weight of driver, passengers, cargo, and options,
rounded to the nearest 10 lbs. (5kg).
WEIGHT DISTRIBUTION, F/R
4WD
SRT 6.4-liter 54/46
BODY
Layout Longitudinal front engine, transfer case with on demand
four-wheel drive
Construction Steel un******
EXHAUST
Type Dual exhaust with active valves and dual 4-in. oval black
chrome tips
SUSPENSION
Front
Short- and long-arm independent (SLA), coil springs, Bilstein
Adaptive Damping Suspension (ADS), upper- and lowercontrol
arms (“A” arms), stabilizer bar
Rear
Multi-link rear suspension, coil spring, Bilstein Adaptive
Damping Suspension (ADS), aluminum lower control arm,
independent upper links (tension and camber) plus a separate
toe link, stabilizer bar
STEERING
Type SRT-tuned power rack and pinion
Steering Ratio 17.5:1
Turn Circle, ft. (m.) 37.1 (11.3)
Lock-to-Lock Steering Wheel Rotations 3.369
BRAKES
Front
Size and Type 15.0 x 1.34 (380 x 34) vented disc with Brembo six-piston
caliper and ABS
Swept Area, sq. in. (sq. cm.) 104.2 (672)
Rear
Size and Type 13.78 x 1.10 (350 x 28) disc with Brembo four-piston caliper
and single-channel ABS
Swept Area, sq. in. (sq. cm.) 79.0 (508)
Power Assist Single-rate, tandem diaphragm vacuum
(a) Turning diameter is measured at the outside of the tires at curb height. Turning diameters and steering wheel
turns, lock-to-lock, may differ with optional tires and wheels.
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JEEP® GRAND CHEROKEE SRT8 SPECIFICATIONS 5
TIRES
Standard
Size and Type P295/45ZR20
Mfr. and Model Pirelli Scorpion Verde – All-Season Performance (run flat)
Revs per Mile 699
Optional
Size and Type P295/45ZR20
Mfr. and Model Pirelli P-Zero – Three Season (run flat)
Revs per Mile 699
TRAILER TOWING
(a)
ENGINE AXLE RATIO MAXIMUM TRAILER
WEIGHT
(b) LBS. (KG)
4WD
6.4-liter V-8 3.70 5,000 (2269)
(a) For towing heavier trailers up to the Maximum Trailer Weight Ratings shown in the Trailer Towing chart, the
vehicle must be equipped with the Trailer Tow Group Class IV for the 6.4-liter engine for North America.
(b) Maximum Trailer Weight = GCWR - Curb Wt. with hitch - 300 lbs. (allowance for driver and passenger) and must
be decreased by the weight of optional equipment, cargo and additional passengers. Maximum trailer weights
shown are rounded to the nearest 50 lbs. Tongue weight should be 10-15% of loaded trailer weight but may not
cause vehicle to exceed GVWR or GAWR. Load equalizing hitch recommended for trailers over 2,000 pounds.
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04-20-2011, 04:59 PM
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