
1
GENERAL INFORMATION
2
MAINTENANCE
3
ENGINE - General
4 FUEL SYSTEM - General
5
BODY / STEERING / SUSPENSION


GENERAL INFORMATION
1.1
CHAPTER 1
GENERAL INFORMATION
1
9923516 - © 2011 Polaris Industries Inc.
MODEL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2
MODEL IDENTIFICATION DIESEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2
ENGINE DESIGNATION NUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2
VIN IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2
VEHICLE AND ENGINE SERIAL NUMBER LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . 1.2
PUBLICATIONS AND REPLACEMENT KEYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3
PUBLICATION NUMBERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3
REPLACEMENT KEYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3
GENERAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4
MODEL: 2011 - 2012 RANGER DIESEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4
GENERAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6
MODEL: 2012 RANGER DIESEL CREW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6
GENERAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8
VEHICLE CONTROLS / GAUGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8
FUEL INFORMATION, USAGE AND RECOMMENDATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 1.9
FUEL INFORMATION / RECOMMENDATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.9
COLD WEATHER OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.10
BLOCK HEATER USAGE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.10
MISC. SPECIFICATIONS AND CHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.11
CONVERSION TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.11
STANDARD BOLT TORQUE SPECIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.12
METRIC BOLT TORQUE SPECIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.12
SAE TAP / DRILL SIZES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.13
METRIC TAP / DRILL SIZES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.13
DECIMAL EQUIVALENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.13
GLOSSARY OF TERMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.14

1.2
GENERAL INFORMATION
9923516 - © 2011 Polaris Industries Inc.
MODEL INFORMATION
Model Identification Diesel
The machine model number must be used with any correspondence regarding warranty or service.
Engine Designation Number
3TNM72 - APL ....................................................................................... 3-Cylinder, Liquid Cooled, Diesel, Electric Start
VIN Identification
Vehicle and Engine Serial Number Locations
Whenever corresponding about a Polaris RANGER utility vehicle, be sure to refer to the vehicle identification number
(VIN) and the engine model number and serial number.
The VIN can be found stamped on the lower frame rail on the front LH side of the vehicle (see Figure 1-1).
The engine model and serial number can be found on a decal applied to the engine cylinder head and stamped on the
side of the engine block.(see Figure 1-2).
}
Machine Model Number Identification
}
}
Model Year
Designation
Basic Chassis
Designation Engine Designation
Emissions &
Model Option
R 1 2 T H 9 0 D G
}
Type
(RANGER)
4 X A T H 9 0 A * C P 0 0 0 0 0 0
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
World
Mfg. ID
Engine
Vehicle Description
Vehicle Identifier
Check Digit
Model
Year
Body Style
Plant No.
Individual Serial No.
* This could be either
a number or a letter Powertrain
Emissions
Figure 1-1
Engine Serial Number
Figure 1-2
VIN Number

1.3
GENERAL INFORMATION
1
9923516 - © 2011 Polaris Industries Inc.
PUBLICATIONS AND REPLACEMENT KEYS
Publication Numbers
NOTE: When ordering service parts be sure to use the correct parts manual.
NOTE: Polaris factory publications can be found at www.polarisindustries.com or purchased from
www.purepolaris.com.
Replacement Keys
Replacement keys can be made from the original key. To identify which series the key is, take the first two digits on the
original key and refer to the chart to the right for the proper part number.
SPECIAL TOOLS
Special tools may be required while servicing this vehicle. Some of the tools listed or depicted are mandatory, while other
tools maybe substituted with a similar tool, if available. Polaris recommends the use of Polaris Special Tools when
servicing any Polaris product. Dealers may order special tools through Polaris’ official tool supplier, SPX Corporation,
by phone at 1-800-328-6657 or on-line at http://polaris.spx.com/ .
Model Model No. Owner’s Manual PN Parts Manual PN
2011 RANGER DIESEL R11TH90DG 9923138 9923139
2012 RANGER DIESEL R12TH90DG 9923514 9923517
2012 RANGER DIESEL CREW R12WH90DG 9923514 9923528
Series# Part Number
20 4010278
21 4010278
22 4010321
23 4010321
27 4010321
28 4010321
31 4110141
32 4110148
67 4010278
68 4010278
Key Series
Number
KEY COVER
P/N 5533534

1.4
GENERAL INFORMATION
9923516 - © 2011 Polaris Industries Inc.
GENERAL SPECIFICATIONS
MODEL: 2011 - 2012 RANGER DIESEL
MODEL NUMBER: R11TH90DG (2011)
R12TH90DG (2012)
ENGINE MODEL: 3TNM72-APL
Category Dimension / Capacity
Length 114 in. / 289.6 cm
Width (cargo box) 60 in. / 152.4 cm
Width (tires) 58 in. / 147.3 cm
Height 76 in. / 193 cm
Wheel Base 76 in. / 193 cm
Ground Clearance 12 in. / 30.5 cm
Turning Radius 158 in. / 401.3 cm
Dry Weight 1435 lbs. / 690 kg
Cargo Box Capacity 1000 lbs. / 454 kg
Cargo Box
Dimensions
(inside dimensions)
36.5 x 54 x 11.5 in.
(93 x 137 x 29 cm)
Vehicle Payload 1500 lbs. / 680 kg
(Includes weight of
operator, passenger, cargo
and accessories.
Hitch Towing Capacity 2000 lbs. / 907 kg
Hitch Tongue Capacity 150 lbs. / 68 kg

1.5
GENERAL INFORMATION
1
9923516 - © 2011 Polaris Industries Inc.
MODEL: 2011 - 2012 RANGER DIESEL
Engine
Platform Yanmar 3-Cylinder,
Liquid Cooled, Diesel
Engine Model Number 3TNM72-APL
Engine Displacement 904 cc
Number of Cylinders 3
Bore & Stroke (mm) 72 x 74 mm
Compression Ratio 23.5 : 1
Compression Pressure 470 ± 15 psi
Engine Idle Speed 1075 ± 50 RPM
Lubrication Pressurized Wet Sump
Oil Requirements Polaris DIESEL Oil
Oil Capacity 1.8 qts. (1.7 L)
Coolant Capacity 6.2 qts. (5.9 L)
Overheat Warning Instrument Cluster Indicator
Exhaust System Canister Style
Starting Aid Glow Plugs / Opt. Block Heater
Fuel System
Fuel Injection Unit
(non-serviceable)
Yanmar MC Fuel Injection
Pump
Fuel Transfer System Electric Fuel Pump (in-line)
Fuel Pump Pressure 1-5 psi
Fuel Capacity 9 gal. (34 L)
Fuel Requirement Low Sulfur or Ultra Low Sulfur
Electrical
Alternator Max Output 55A, 742 Watts, @ 3000 RPM
Main Headlights 50 Watt / Halogen x 2
Tail Lights 0.3 Watts / L.E.D. x 2
Brake Lights 3.1 Watts / L.E.D. x 2
Starting System Electric Start
Glow Plugs Yanmar Quick Type
Battery Low-Maintenance / Sealed
Instrumentation Multifunction Speedometer
DC Outlets (2) - Front
Relays Chassis/ Glow Plug / Fan /
Fuel Pump / Differential/ Brake
Light
Circuit Breaker Fan Motor: 15 Amp
Fuses Main: 20 Amp
Accessory: 20 Amp
Lights: 15 amp
Fuel Pump: 30 Amp
Glow Plugs: 30 Amp
Fuel Pump: 30 Amp
Auxiliary Lights: 20 Amp
Drivetrain
Transmission Type Polaris Automatic PVT
Shift Type In Line Shift - H / L / N / R
Front Gearcase Lubricant
Requirements
Demand Drive Plus
6.75 oz. (200 ml)
Rear Gearcase Lubricant
Requirements
ATV Angle Drive Fluid
22 oz. (650 ml)
Transmission Lubricant
Requirements
Polaris AGL plus
32 oz. (946 ml)
Drive Belt 3211135
Steering / Suspension
Toe Out 1/8 - 1/4 in. (3.2 - 6.35 mm)
Front Suspension Dual A-arm
Front Travel 9.6 in. (24.4 cm)
Rear Suspension Independent (IRS)
Rear Travel 9 in. (22.9 cm)
Shock Preload Adjustment Cam Adjustment
Wheels / Brakes
Front Wheel Size / Type 12 x 6 / Steel
Rear Wheel Size / Type 12 x 8 / Steel
Front Tire
Make / Model / Size
AT489 / 25 x 10 R12
Rear Tire
Make / Model / Size
AT489 / 25 x 11 R12
Tire Air Pressure 8-12 psi
Brake System Type 4 Wheel Hydraulic Disc
Brake Fluid DOT 4
Parking Brake Hand Actuated (in dash)

1.6
GENERAL INFORMATION
9923516 - © 2011 Polaris Industries Inc.
GENERAL SPECIFICATIONS
MODEL: 2012 RANGER DIESEL CREW
MODEL NUMBER: R12WH90DG (2012)
ENGINE MODEL: 3TNM72-APL
Category Dimension / Capacity
Length 145 in. / 386 cm
Width (cargo box) 60 in. / 149.8 cm
Width (tires) 58 in. / 147.3 cm
Height 76 in. / 193 cm
Wheel Base 108 in. / 274 cm
Ground Clearance 11.5 in / 29 cm
Turning Radius 255 in. / 648 cm
Dry Weight 1685 lbs. / 764.3 kg
Cargo Box Capacity
CREW
1000 lbs. / 454 kg
Cargo Box
Dimensions
(inside dimensions)
36.5 x 54 x 11.5 in.
(93 x 137 x 29 cm)
Vehicle Payload 1750 lbs. / 794 kg
(Includes weight of
operator, passenger, cargo
and accessories.
Hitch Towing Capacity 2000 lbs. / 907 kg
Hitch Tongue Capacity 150 lbs. / 68 kg

1.7
GENERAL INFORMATION
1
9923516 - © 2011 Polaris Industries Inc.
MODEL: 2012 RANGER DIESEL CREW
Engine
Platform Yanmar 3-Cylinder,
Liquid Cooled, Diesel
Engine Model Number 3TNM72-APL
Engine Displacement 904 cc
Number of Cylinders 3
Bore & Stroke (mm) 72 x 74 mm
Compression Ratio 23.5:1
Compression Pressure 470 ± 15 psi
Engine Idle Speed 1075 ± 50 RPM
Lubrication Pressurized Wet Sump
Oil Requirements Polaris DIESEL Oil
Oil Capacity 1.8 qts. (1.7 L)
Coolant Capacity 6.64 Qts (6.28 L)
Overheat Warning Instrument Cluster Indicator
Exhaust System Canister Style
Starting Aid Glow Plugs / Opt. Block Heater
Fuel System
Fuel Injection Unit
(non-serviceable)
Yanmar MC Fuel Injection
Pump
Fuel Transfer System Electric Fuel Pump (in-line)
Fuel Pump Pressure 1-5 psi
Fuel Capacity 9 gal. (34 L)
Fuel Requirement Low Sulfur or Ultra Low Sulfur
Electrical
Alternator Max Output 55A, 742 Watts, @ 3000 RPM
Main Headlights 50 Watt / Halogen x 2
Tail Lights 0.3 Watts / L.E.D. x 2
Brake Lights 3.1 Watts / L.E.D. x 2
Starting System Electric Start
Glow Plugs Yanmar Quick Type
Battery Low-Maintenance / Sealed
Instrumentation Multifunction Speedometer
DC Outlets 2 front / 1 rear
Relays Chassis/ Glow Plug / Fan /
Fuel Pump / Differential/ Brake
Light
Circuit Breaker Fan Motor: 15 Amp
Fuses Main: 20 Amp
Accessory: 20 Amp
Lights: 15 amp
Fuel Pump: 30 Amp
Glow Plugs: 30 Amp
Fuel Pump: 30 Amp
Auxiliary Lights: 20 Amp
Drivetrain
Transmission Type Polaris Automatic PVT
Shift Type In Line Shift - H / L / N / R
Front Gearcase Lubricant
Requirements
Demand Drive Plus
6.75 oz. (200 ml)
Rear Gearcase Lubricant
Requirements
ATV Angle Drive Fluid
22 oz. (650 ml)
Transmission Lubricant
Requirements
Full Synthetic Transmission
Fluid
32 oz. (946 ml)
Drive Belt 3211135
Steering / Suspension
Toe Out 1/8 - 1/4 in. (3.2 - 6.35 mm)
Front Suspension Dual A-arm
Front Travel 9.6 in. (24.4 cm)
Rear Suspension Independent (IRS)
Rear Travel 9 in. (22.9 cm)
Shock Preload Adjustment Cam Adjustment
Wheels / Brakes
Front Wheel Size / Type 12 x 6 / Steel
Rear Wheel Size / Type 12 x 8 / Steel
Front Tire
Make / Model / Size
Carlisle / PXT / 26 x 9 R12
Rear Tire
Make / Model / Size
Carlisle / PXT / 26 x 11 R12
Tire Air Pressure Front : 12 PSI (83 kPa)
Rear: 16 PSI (110 kPa)
Brake System Type 4 Wheel Hydraulic Disc
Brake Fluid DOT 4
Parking Brake Hand Actuated (in dash)

1.8
GENERAL INFORMATION
9923516 - © 2011 Polaris Industries Inc.
GENERAL SPECIFICATIONS
Vehicle Controls / Gauges
Parking Brake Lever Gear selector (shifter)
Switches &
Speedometer / MFD
12V Outlets Ignition Switch
Indicator lights
Low Oil Pressure Indicator
Wait-to-start (Glow plug)
Indicator
Head lamp
Switch
Ignition Switch
Off / On / Start
Speedometer
MFD
Mode Button
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2012-2013 Polaris Ranger 900 Crew 4X4 Diesel Service & Repair Manual
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Description
- The 2012-2013 Polaris Ranger 900 Crew 4X4 Diesel Service & Repair Manual is a comprehensive resource for troubleshooting and replacing parts in your UTV.
- It includes step-by-step instructions, clear images, and exploded-view illustrations provided by the manufacturer.
- Regular maintenance is essential for the durability of your UTV, and this manual equips both professional mechanics and DIY enthusiasts with the necessary manufacturer-recommended troubleshooting charts and replacement procedures.
- By utilizing this manual, you can save on repairs, enhance your UTV's reliability, and reduce reliance on repair shops.
- This is not a generic repair manual but a detailed resource used by professional technicians. It eliminates the hassle of searching through numerous pages and offers the convenience of digital access, including the option to print a physical copy.
- Printable: Yes
- Language: English
- Compatibility: Compatible with various electronic devices, including PC & Mac computers, Android and Apple smartphones & tablets, etc.
- Requirements: Adobe Reader (free)