2003 GMC Yukon

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Model Lineup	Engine				Transmission
Model Lineup	Vortec 4800 4.8L V8	Vortec 5300 5.3L V8	Vortec 6000 6.0L V8	Vortec 8100 8.1L V8	4-spd auto (Hydra-Matic 4L60-E)	4-spd auto (Hydra-Matic 4L80-E)	4-spd auto* (Hydra-Matic 4L85-E)
Yukon 2WD / 4WD	Standard	Optional	-	-	Standard	-	-
Yukon XL 1500 2WD / 4WD	-	Standard	-	-	Standard	-	-
Yukon XL 2500 2WD / 4WD	-	-	Standard	Optional	-	Standard	Optional
* 4L85-E transmission is standard with the optional Vortec 8100 V8 engine.

Engine	Vortec 4800 (LR4)	Vortec 5300 (L59)	Vortec 6000 (LQ4)	Vortec 8100 (L18)
Type	4.8-liter V8	5.3-liter V8	6.0-liter V8	8.1-liter V8
Displacement (cu in / cc)	294 / 4807	327 / 5328	364 / 5967	496 / 8128
Bore & stroke (in / mm)	3.78 x 3.27 / 96 x 83	3.78 x 3.62 / 96 x 92	4.00 x 3.62 / 101.6 x 92	4.25 x 4.37 / 107.95 x 111
Block material	cast iron	cast iron	cast iron	cast iron
Cylinder head material	cast aluminum	cast aluminum	cast aluminum	cast iron
Valvetrain	OHV, 2 valves per cylinder	OHV, 2 valves per cylinder	OHV, 2 valves per cylinder	OHV, 2 valves per cylinder
Ignition system	composite distributor, platinum-tipped spark plugs, low-resistance spark plug wires	coil near plug composite distributor, platinum-tipped spark plugs, low-resistance spark plug wires	coil near plug composite distributor, platinum-tipped spark plugs, low-resistance spark plug wires	coil near plug, platinum-tipped spark plugs
Fuel delivery	sequential fuel injection	sequential fuel injection	sequential fuel injection	sequential fuel injection
Compression ratio	9.5:1	9.5:1	9.4:1	9.1:1
Horsepower (hp / kw @ rpm)	275 / 205.2 @ 5200	285 / 212.6 @ 5200	320 / 238.7 @ 5000	340 / 253.6 @ 4200
Torque (lb-ft / Nm @ rpm)	290 / 393 @ 4000	325 / 441 @ 4000	360 / 488 @ 4000	455 / 617 @ 3200
Recommended unleaded fuel	87 octane	ethanol-capable flex fuel	87 octane	87 octane
Maximum engine speed (rpm)	6000	5900	5600	5000
Emissions controls	three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system	three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system	three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system	exhaust gas recirculation, Air Injection Reaction (available)
Estimated fuel economy (mpg city / hwy / combined)
C1500 Yukon (2WD)	15 / 20 / 17	14 / 18 / 16	N/A	N/A
C1500 Yukon XL (2WD)	N/A	14 / 18 / 16	N/A	N/A
K1500 Yukon (4WD)	14 / 18 / 16	14 / 17 / 15	N/A	N/A
K1500 Yukon XL (4WD)	N/A	14 / 16 / 15	N/A	N/A

Transmission	Hydra-Matic 4L60-E	Hydra-Matic 4L80-E	Hydra-Matic 4L85-E
Type	4-speed electronic automatic	4-speed electronic automatic	4-speed electronic automatic
Gear ratios (:1):
1st	3.06	2.48	2.48
2nd	1.63	1.48	1.48
3rd	1.00	1.00	1.00
4th	0.70	0.75	0.75
Reverse	2.29	2.08	2.08
Final drive ratio	Yukon (optional): 3.42:1 - 4.10:1
Final drive ratio	Yukon XL (optional): 3.73:1 - 4.10:1

Chassis / Suspension	Yukon	Yukon XL
Front	independent with torsion bars	independent with torsion bars
Rear	5-link coil spring w/automatic load leveling	1/2-ton: 5-link coil spring
Rear	5-link coil spring w/automatic load leveling	3/4-ton: two-stage, semi-elliptic, multileaf springs and semifloating rear axle
Traction control	full-function standard; Precision Control System	full-function standard; Precision Control System
Steering type	2WD: power integral gear 1/2-ton	2WD: power integral gear 1/2-ton
	4WD: power integral gear w/EVO variable assist	4WD: power integral gear w/EVO variable assist
	4WD: power integral gear w/EVO variable assist	3/4-ton 2WD/4WD: power integral gear
Steering ratio	14:1 gear; 15.8:1 overall	14:1 gear; 15.8:1 overall
Steering ratio	14:1 gear; 15.8:1 overall	3/4-ton: 15 / 13:1 variable ratio gear; 16.2:1 overall
Steering wheel turns, lock-to-lock	3.2	3.2
Turning circle, curb-to-curb (ft / m)	38.3 / 11.7	1/2-ton: 43 / 13.1
		3/4-ton, 2WD: 44.3 / 13.5
		3/4-ton, 4WD: 44.3 / 13.5

Brakes	Yukon	Yukon XL
Type	four-wheel disc, four-wheel ABS, dual piston calipers with Dynamic Rear Proportioning	four-wheel disc, four-wheel ABS, dual piston calipers with Dynamic Rear Proportioning
Rotor diameter x thickness (in / mm)	front: 12.01 x 1.14 / 305 x 29	front: 1/2-ton: 12.01x1.14/305x29 3/4-ton: 12.80 x 1.50 / 325 x 38
Rotor diameter x thickness (in / mm)	rear: 13.0 x 1.18 / 330 x 30	rear: 1/2-ton: 223.5 / 1440 3/4-ton: 223.5 / 1440
Total swept area (sq in / sq cm)	front: 213.6 / 1378	front: 1/2-ton: 213.6 / 1378 3/4-ton: 245.5 / 1584
Total swept area (sq in / sq cm)	rear: 223.5 / 1440	rear: 1/2-ton: 223.5 / 1440 3/4-ton: 223.5 / 1440

Wheels / Tires	2003 GMC Yukon
Wheel size & type	1/2-ton: 16-inch x 7-inch cast aluminum
Wheel size & type	3/4-ton: 16-inch x 6.5-inch forged cast aluminum
Tires	1/2-ton: P265/70R16 all-season, steel-belted radials
	1/2-ton (optional): P245/75R16 all-season, steel-belted radials
	3/4-ton: LT245/75R16 all season, steel-belted radials

Exterior Dimensions	Yukon	Yukon XL
Wheelbase (in / mm)	116 / 2946	130 / 3302
Overall length (in / mm)	198.8 / 5050	219.3 / 5570
Overall width (in / mm)	78.8 / 2002	1/2-ton: 78.9 / 2004
Overall width (in / mm)	78.8 / 2002	3/4-ton: 79.8 / 2027
Overall height with luggage rack: (in / mm):	1/2-ton, 2WD: 73.6 / 1870	1/2-ton, 2WD: 73.6 / 1870
		1/2-ton, 4WD: 75.7 / 1923
		1/2-ton, 4WD: 75.7 / 1923
		3/4-ton, 2WD: 76.4 / 1950
		3/4-ton, 4WD: 76.5 / 1941
Track (in / mm)	front: 65 / 1651	front: 65 / 1651
Track (in / mm)	rear: 66 / 1676	rear: 66 / 1676
Min. ground clearance (in / mm)	8.4 / 213.4	1/2-ton: 8.4 / 213
Min. ground clearance (in / mm)	8.4 / 213.4	3/4-ton: 7.1 / 180
Ground to top of rear load floor (in / mm)	2WD: 29.3 / 744	1/2-ton, 2WD: 29.3 / 744
	2WD: 29.3 / 744	1/2-ton, 4WD: 30.6 / 777
	4WD: 30.6 / 777	3/4-ton, 2WD: 32.6 / 828
	4WD: 30.6 / 777	3/4-ton, 4WD: 31.8 / 808
Approach angle	22°	23-25°
Departure angle	15°	20-22°
Curb weight (lbs / kg)	2WD: 4828 / 2190	1/2-ton, 2WD: 4914 / 2229
	2WD: 4828 / 2190	1/2-ton, 4WD: 5123 / 2323
	4WD: 5050 / 2290	3/4-ton, 2WD: 5447 / 2470
	4WD: 5050 / 2290	3/4-ton, 4WD: 5760 / 2612
Weight distribution (% front / rear)	2WD: 52/48 1/2-ton	2WD: 52 / 48
	2WD: 52/48 1/2-ton	1/2-ton, 4WD: 54 / 46
	4WD: 54 / 46	3/4-ton, 2WD: 51/49
	4WD: 54 / 46	3/4-ton, 4WD: 53 / 47

Interior Dimensions		Front Row	Second Row	Third Row
Seating capacity, 7 to 9 total	Yukon	3 or 2	3	3
Seating capacity, 7 to 9 total	Yukon XL	3 or 2	3 or 2	3
Head room (in / mm)	Yukon	40.7 / 1034	39.9 / 991	38.6 / 980
Head room (in / mm)	Yukon XL	40.7 / 1034	39.9 / 991	38.6 / 980
Leg room (in / mm)	Yukon	41.3 / 1049	39.1 / 994	36.1 / 917
Leg room (in / mm)	Yukon XL	41.3 / 1049	39.1 / 994	36.1 / 917
Shoulder room (in / mm)	Yukon	65.2 / 1656	65.1 / 1654	64.4 / 1636
Shoulder room (in / mm)	Yukon XL	65.2 / 1656	65.1 / 1654	64.4 / 1636
Hip room (in / mm)	Yukon	61.4 / 1560	61.3 / 1557	49.2 / 1250
Hip room (in / mm)	Yukon XL	61.4 / 1560	61.3 / 1557	49.2 / 1250
Cargo volume (cu ft / liters)	Yukon	104.6 / 2962	63.6 / 1801	16.3 / 461
Cargo volume (cu ft / liters)	Yukon XL	131.6 / 3726	90 / 2549	45.7 / 1294 (seat back in up position)

Capacities	Yukon	Yukon XL
GVWR, standard (lbs / kg)	2WD: 6500 / 2948	1/2-ton, 2WD: 7000 / 3175
		1/2-ton, 4WD: 7200 / 3265
	4WD: 6800 / 3084	3/4-ton, 2WD: 8600 / 3901
		3/4-ton, 4WD: 8600 / 3901
Payload, base (lbs / kg)	2WD: 1573 / 714	1/2-ton, 2WD: 2086 / 946
		1/2-ton, 4WD: 2077 / 942
	4WD: 1616 / 733	3/4-ton, 2WD: 3153 / 1430
		3/4-ton, 4WD: 2840 / 1288
Trailer towing maximum (lbs / kg)	2WD: 7700 / 3493	1/2-ton, 2WD: 8400 / 3810
		1/2-ton, 4WD: 8100 / 3674
	4WD: 8100 / 3674	3/4-ton, 2WD: 12000 / 5443
		3/4-ton, 4WD: 12000 / 5443
Maximum tongue weight (lbs / kg)	Trailer tongue weight should be 10-15 percent of the total loaded trailer weight. Weight-carrying hitch limit on 4,000-lb trailer is 400-pound tongue weight. Weight-distributing hitch and sway control required for over 4,000-lb trailer weight.
Fuel tank (gals / liters)	26 / 98.4	1/2-ton: 31 / 117.3
		3/4-ton: 37.5 / 142
Engine oil (qts / liters)	5.8 / 5.4	5.8 / 5.4
Cooling system (qts / liters)	Vortec 4800: 14.4 / 13.7	Vortec 5300: 16.5 / 15.6
	Vortec 5300: 16.5 / 15.6	Vortec 6000: 16.5 / 15.6
		Vortec 8100: 24.3 / 23

Although New-Cars.com checks with auto manufacturers and their representatives to confirm the accuracy of the data, it makes no guarantee or warranty, either expressed or implied with respect to the data presented here. All specifications, prices and equipment are subject to change without notice.

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