2003 Dodge Ram 1500 - Specs

All dimensions are in inches (millimeters) unless otherwise noted.

Engine	Next-Generation 3.7-Liter Magnum®, SOHC 12-Valve SMPI V-6	Next-Generation 4.7-Liter Magnum®, SOHC 12-Valve SMPI V-8	5.9-Liter Magnum®, OHV SMPI V-8
Availability	Std. — 2WD Regular Cab	Std.– All Quad Cabs™ and 4WD regular cabs	Opt. — All
Type and Description	90-degree V-6, liquid cooled with balance shaft	90-degree V-8, liquid cooled	Eight cylinders, 90° V-type, liquid cooled, light duty
Displacement	226 cu. in. (3701 cu. cm)	287 cu. in. (4701 cu. cm)	360 cu. in. (5895 cu. cm)
Bore x Stroke	3.66 x 3.57 (93.0 x 90.8)	3.66 x 3.40 (93.0 x 86.5)	4.00 x 3.58 (101.6 x 90.9)
Valve System	Chain-driven SOHC, 12 valves, hydraulic end-pivot roller rockers	Chain-driven SOHC, 16 valves, hydraulic end-pivot roller rockers	OHV, 16 valves, roller followers, hydraulic lifters
Fuel Injection	Sequential, multi-port, electronic, returnless	Sequential, multi-port, electronic, returnless	Sequential, multi-port, electronic
Construction	Cast-iron block and bedplate, aluminum alloy heads, balance shaft	Cast-iron block, aluminum alloy heads	Cast-iron block and heads
Compression Ratio	9.1:1	9.3:1	8.9:1
Power (SAE net)	215 bhp (160 kW) @ 5200 rpm ( 58.1 bhp/L)	240 bhp (179 kW) @ 4800 rpm (51.0 bhp/L)(a)	245 bhp (183 kW) @ 4000 rpm, (39.0 bhp/L)
Torque (SAE net)	235 lb.-ft. (319 N•m) @ 4000 rpm	300 lb.-ft. (407 N•m) @ 3200 rpm	335 lb.-ft. (454 N•m) @ 3200 rpm
Max. Engine Speed	6000 rpm (electronically limited)	6000 rpm (electronically limited)	5250 rpm
Fuel Requirement	Unleaded regular, 87 octane (R + M)/2	Unleaded regular, 87 octane (R + M)/2	Unleaded regular, 87 octane R+M/2
Oil Capacity	5.0 qt. (4.7L) SAE 5W/30	6 qt. (5.7L)	5 qt. (4.7L)
Emission Controls	Three-way catalytic converter and internal engine features(a)	Three-way catalytic converter and internal engine features(a)	Three-way catalytic converter, heated oxygen sensors and internal engine features(a)
		Three, three-way catalytic converters and internal engine features(b)(c)
Estimated EPA Fuel Economy mpg (city/hwy)	Manual: 15/21	2WD man.: 14/19	2WD: 12/18
		4WD auto: 14/19
	Automatic: 15/20	4WD man.: 13/18	4WD: 11/16
		4WD auto: 13/17
(a) Meets Federal Tier 1 emission requirements in all states except California and Massachusetts. (b) Meets ULEV (Ultra Low Emission Vehicle) requirements in California and Massachusetts. (c) Meets federal ULEV Clean Fuel Fleet (CFF) requirements in all states except California and Massachusetts.

Electrical	2003 Dodge Ram 1500
Alternator	136-amp
Battery	Group 65, low-maintenance, 600 CCA — standard
	750 CCA — optional

Transmission	NV3500 - Manual, 5-Speed Overdrive	45RFE - Automatic, Multi-Speed Overdrive	46RE - Automatic, 4-Speed Overdrive
Availability	Std. — All with 3.7- and 4.7-liter engines	Opt. — All with 3.7- and 4.7-liter engines	Std. — All with 5.9-liter engine
Description	Synchronized in all gears	Three planetary gear sets, one overrunning clutch, full electronic control, electronically controlled converter clutch	Hydraulic control, electronically controlled governor, overdrive lockout and converter clutch
Gear Ratios
1st	4.04	3.0	2.45
2nd	2.33	1.67 — upshift	1.45
		1.50 — kick-down
3rd	1.39	1.00	1.00
4th	1.00	0.75	0.69
5th	0.73	-	-
Reverse	3.55	3.0	2.20
Overall Top Gear	2.59 w/3.55 axle	2.66 w/3.55 axle	2.45 w/3.55 axle
	2.86 w/3.92 axle	2.94 w/3.92 axle	2.70 w/3.92 axle

Transfer Case	NV241/NV243 Gen. II Part-Time
Availability	NV241: Std. — All 4WD
	NV243: — Opt. All 4WD, included with SLT Plus Group and 5.9-liter engine
Operating Modes	2WD; 4WD High, Locked; Neutral; 4WD Low, Locked
Shift Mechanism	Manual — NV241, Electrical — NV243
Low Range Ratio	2.72
Center Differential	None

Exterior Dimensions and Capacities
Model		Quad Cab 2-Wheel Drive		Quad Cab 4-Wheel Drive
Box Length, ft. (nominal)		6.3	8	6.3	8
Wheelbase		140.5	160.5	140.5	160.5
Track	Front	68	68	68	68
	Rear	67.4	67.4	67.4	67.4
Overall Length		227.7	249.7	227.7	249.7
Overall Width		79.9	79.9	79.9	79.9
Overall Height		74.7	74.5	76.6	76.4
Tailgate Load Height		33.7	33.6	35.1	35
Ground Clearance	Front axle	8.3	8.3	9.5	9.2
	Rear axle	8.1	8.1	8	8
Approach Angle		16.5°	16.7	20.1°	20.2°
Ramp Breakover Angle		21.1°	19.8°	17.8°	15.7°
Departure Angle		25°	23.9°	26.7°	25.5°
Frontal Area		34.6 sq. ft.	34.6 sq. ft.	34.9 sq. ft.	34.9 sq. ft.
Drag Coefficient		—	—	0.528	—
Fuel Tank Capacity		26 gal. (98L)	35 gal. (132L)	26 gal. (98L)	35 gal. (132L)
Model		Regular Cab 2-Wheel Drive		Regular Cab 4-Wheel Drive
Box Length, ft. (nominal)		6.3	8	6.3	8
Wheelbase		120.5	140.5	120.5	140.5
Track	Front	68	68	68	68
	Rear	67.4	67.4	67.4	67.4
Overall Length		207.7	229.7	207.7	229.7
Overall Width		79.9	79.9	79.9	79.9
Overall Height		74.4	74.1	76.6	76
Tailgate Load Height		34	33.8	35.3	35.1
Ground Clearance	Front axle	8.3	8.3	9.1	9.2
	Rear axle	8.1	8	8	8
Approach Angle		16.3	16.5	20	20.1
Ramp Breakover Angle		23.1	21.1	21.5	17.8
Departure Angle		25.2	24.1	26.9	25.7
Frontal Area		34.6 sq. ft.	34.6 sq. ft.	34.9 sq. ft.	34.9 sq. ft.
Fuel Tank Capacity		26 gal. (98L)	35 gal. (132L)	26 gal. (98L)	35 gal. (132L)

Cargo Box	6.3' Box	8' Box
SAE Volume	57.7 cu. ft. (1.63 cu. m)	73.9 cu. ft. (2.09 cu. m)
Length At Floor, Tailgate Closed	75.9 (1928)	97.9 (2486)
Cargo Width	66.4 (1687)	66.4 (1687)
Distance Between Wheelhouses	51.0 (1295)	51.0 (1295)
Depth	20.2 (512)	20.2 (512)
Tailgate Opening Width	63.5 (1612)	63.5 (1612)

Accommodations		Regular Cab	Quad Cab
Seating Capacity, F/R		3/-	3/3
Head room	Front	40.9 (1040)	40. 8(1037)
	Rear	-
Leg room	Front	41.0 (1041)	41.0 (1041)
	Rear	-
Shoulder room	Front	67.0 (1702)	67.0 (1702)
	Rear	-
Hip room	Front	65.1 (1653)	65.1 (1653)
	Rear	-
Seat Travel	Front	9.0 (229)	9.0 (229)
Recliner range	Front	45°	45°
Hip room	Rear	-	64.6 (1640)
Knee clearance	Rear	-	1.1 (28)
Interior Volume	Front	65.06 cu. ft.	64.92 cu. ft.
	Rear	-	56.18 cu. ft.

Body & Chassis	2WD	4WD
Layout	Longitudinal, front engine; Hotchkiss drive	Longitudinal, front engine; Hotchkiss drive, transfer case
Construction	Ladder-type frame,steel cab, double-wall steel pickup box	Ladder-type frame,steel cab, double-wall steel pickup box

Suspension	2WD	4WD
Front	Upper and lower “A” arms, coil springs, gas-charged shock absorbers, stabilizer bar	Upper and lower “A” arms, torsion bars, gas-charged shock absorbers, stabilizer bar
Rear	Live axle, longitudinal leaf springs, gas-charged shock absorbers	Live axle, longitudinal leaf springs, gas-charged shock absorbers

Steering - Quad Cab Pickup
Model	Two-Wheel Drive		Four-Wheel Drive
Box Length, ft.	6.3	8	6.3	8
Wheelbase	140.5	160.5	140.5	160.5
Overall Ratio	14.1:1	13.3:1	14.1:1	13.3:1
Steering Wheel Turns (lock-to-lock)	2.75	2.6	2.75	2.6
Turning Diameter (a)	45.7 ft. (13.9 m)	52.0 ft. (15.85 m)	46.0 ft. (14.02 m)	52.5 ft. (16.00 m)
Steering - Regular Cab Pickup
Model	Two-Wheel Drive		Four-Wheel Drive
Box Length, ft.	6.3	8	6.3	8
Wheelbase	120.5	140.5	120.5	140.5
Overall Ratio	15.4:1	14.1:1	15.4:1	14.1:1
Steering Wheel Turns (lock-to-lock)	3.0	2.75	3.0	2.75
Turning Diameter	39.3 ft. (11.97 m)	45.7 ft. (13.9 m)	39.6 ft. (12.07 m)	46.0 ft. (14.02 m)
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.

Brakes		Dodge Ram 1500
Front	Size and Type	13.2 x 1.1 (336 x 28) vented disc with 2.13 (54) two-piston pin-slider caliper (a)
	Swept Area	292 sq. in. (1884 sq. cm)
Rear	Size and Type	3.8 x 0.87 (352 x 22) disc with 2.13 (54) single-piston pin-slider caliper and ABS
	Swept Area	274 sq. in. (1768 sq. cm)
Power Assist Type		Dual-rate, tandem diaphragm vacuum
(a) Also available w/ABS

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