RAM Chassis Cab 2012 3500, Chassis Cab 2012 4500, Chassis Cab 2012, 5500 Chassis Cab 2012 Specifications

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SPECIFICATIONS

Chassis Cab

2012 Ram 3500/4500/5500 Chassis Cab

SPECIFICATIONS

All dimensions are in inches (millimeters) unless otherwise noted.
All dimensions measured at curb weight with standard tires and wheels.

NOTE: Information shown is correct at time of publication and is subject to change. Typical 2012 Ram 3500 Crew Cab Chassis Cab.
Some unique exceptions showing 4500 and 5500 complexity are included.

GENERAL INFORMATION

Body Style

Chassis Cab: Regular Cab and Crew Cab

Assembly Plant

Saltillo Truck Assembly Plant, Saltillo, Mexico

EPA Vehicle Class

Medium Heavy Duty

Introduction

2011 Model Year

ENGINE: 5.7-LITER HEMI® V-8

Availability

Standard on 3500

Type and Description

Eight-cylinder, 90-degree V-type, liquid-cooled, with variable-valve
timing (VVT)

Displacement

343 cu. in. (5654 cu. cm)

Bore x Stroke

3.92 x 3.58 (99.5 x 90.9)

Valve System

Pushrod-operated overhead valves, 16 valves, hydraulic lifters with
roller followers

Fuel Injection

Sequential, multi-port, electronic, returnless

Construction

Deep-skirt cast-iron block with cross-bolted main bearing caps,
aluminum alloy heads with hemispherical combustion chambers

Compression Ratio

9.6:1

Power (SAE net)

383 hp (286 kW) @ 5,600 rpm

Torque (SAE net)

400 lb.-ft. (542 N•m) @ 4,000 rpm

Maximum Engine Speed

5,800 rpm

Fuel Requirement

Unleaded mid-grade, 89 octane (R+M)/2 — recommended
Unleaded regular, 87 octane (R+M)/2 — acceptable

Oil Capacity

7.0 qt. (6.6L)

Coolant Capacity

18.7 qt. (17.7L)

Emission Control

Dual three-way catalytic converters, internal engine features with
knock sensors

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SPECIFICATIONS

Chassis Cab

ENGINE: 6.7-LITER HIGH OUTPUT CUMMINS TURBO DIESEL I-6

Availability

Optional on 3500, Standard on 4500 and 5500

Type and Description

Six-cylinder, inline, liquid-cooled, turbocharged, intercooled

Displacement

408 cu. in. (6690 cu. cm)

Bore x Stroke

4.21 x 4.88 (107 mm x 124 mm)

Valve System

OHV, 24 valves, solid lifters

Fuel Injection

Electronic high-pressure common rail

Construction

Cast-iron block and head

Compression Ratio

17.3:1

Power (SAE net)

305 hp (227 kW) @ 2,900 rpm

Torque (SAE net)

610 lb.-ft. (827 N•m) @ 1,600 rpm

Maximum Engine Speed

3,500 rpm

Fuel Requirement

Ultra-low sulfur diesel

Oil Capacity

(Low ash req.) 12.0 qt. (11.3L) with filter

Coolant Capacity

32.7 qt. (30.9L)

Emission Controls

Selective Catalytic Reduction (SCR)

ELECTRICAL SYSTEM

Alternator

Availability

Standard — Gas 3500

Rating

160-amp

Battery

Maintenance-free, 750 CCA

Availability

Standard — 3500, Optional — Gas 3500, Standard 4500 and 5500

Rating

180-amp

Battery

Maintenance-free, 750 CCA

Availability

Optional — Diesel 3500, 4500 and 5500

Rating

220-amp

Battery

Maintenance-free, 750 CCA

Battery

Availability

Standard — Gas 3500

Description

Group 65, maintenance-free, 750 CCA

Availability

Optional — Diesel 3500, Standard — 4500 and 5500

Description

Dual, Group 65, maintenance-free, 750 CCA

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SPECIFICATIONS

Chassis Cab

TRANSMISSION: 66RFE-AUTOMATIC SIX-SPEED

Availability

Standard — 5.7-liter engine 3500

Description

Planetary gear sets, one overrunning clutch, full electronic control,
electronically controlled converter clutch

Gear Ratios

1st

3.23

2nd

1.84 — upshift; 1.50 — kickdown

3rd

1.41

4th

1.00

5th

0.82

6th

.63

Reverse

4.44

Final Drive

2.58 with 4.10 axle ratio

TRANSMISSION: G56-MANUAL SIX-SPEED OVERDRIVE

Availability

Standard — Diesel 3500, Standard 4500 and 5500

Description

Synchronized in all gears

PTO Capable

Six-bolt mounting, left side

Gear Ratios

1st

5.94

2nd

3.28

3rd

1.98

4th

1.3

5th 1 6th

0.74

Reverse

5.42

Final Drive

3.03 with 4.10 axle ratio, 3.29 with 4.44 axle ratio

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SPECIFICATIONS

Chassis Cab

TRANSMISSION: AISIN AS68RC SIX-SPEED

Availability

Optional — 3500 Diesel, Optional 4500 and 5500

PTO Capable (35 HP max)

Six-bolt mounting; right side

Description

Electronically controlled overdrive lockout, electronically controlled
converter clutch

Gear Ratios

1st

3.74

2nd

2.00

3rd

1.34

4th 1 5th

0.77

6th

0.63

Reverse

3.54

Overall Top Gear Ratio

2.80 with 4.44 axle ratio; 3.07 with 4.88 axle ratio

TRANSFER CASE: NV273, (NV271)

Availability

Standard (4x4) all models

Type

Part-time

Operating Modes

2WD; 4WD High; Neutral; 4WD Low

Shift Mechanism

NV273 — electric (NV271 manual)

Low-range Ratio

2.72

Center Differential

None