2007i-2010 NPR/NQR/NRR
Recommended Fluid Capacities/Maintenance Information |
Recommended Fluid Capacities/Maintenance Information
Capacities given are approximated original factory filling quantities. Use this information for reference only. Actual refill quantities may vary based on fluid temperature and drain time.
Engine Crankcase
Keep the level as close as possible to the full mark without overfilling. Do not operate with the level below the low mark.
4HK1-TC |
Capacity |
10.5 L (11.0 qts) |
This figure includes the full-flow oil filter, which should be changed at each oil change.
When to Add Engine Oil
If the oil is below the lower hole at the tip of the dipstick, you need to add at least one quart/liter of oil. But you must use the right kind.
Notice: Do not add too much oil. If the engine has so much oil that the oil level gets above the "Full" level that shows the proper operating range, the engine could be damaged.
Be sure to add enough oil to put the level somewhere in the proper operating range. Push the dipstick all the way back in when you are through.
What Kind of Engine Oil to Use
Oils designated as API CJ-4 recommended for the vehicle. The CJ-4 designations can appear either alone, together, or in combination with other American Petroleum Institute (API) designations, such as API CJ-4. These letters show API levels of quality.
Engine Cooling System
Capacity |
18.0 L (4.8 gal) |
Thermostat |
82, 85°C (180, 185°F) |
Radiator Pressure Cap |
108 kPa (15.66 psi) |
Fuel Tank
The fuel tank capacity is stated on a metal plate attached to the fuel tank body. Only fill the tank to 95 percent of its capacity. This allows room for expansion of the fuel
Manual Transmission
Capacity (based on a dry transmission) |
4.4 L (9.3 pints) |
Automatic Transmission
Capacity (based on a dry system including transmission, converter, cooler, lines etc.) |
14.0 L (29.6 pints) |
Rear Axle
Gear Oil Capacity |
10.0 L (21.1 pints) |
Limited Slip Differential Lubricant Additive (if limited slip differential equipped) |
0.6L (1.27 pints) |
Maintenance Item
Air Cleaner Filter |
ISUZU Part No. 8-97062-294-0 GM Part No. 97062294 |
Engine Oil Filter Cartridge |
ISUZU Part No. 8-97148-270-1 GM Part No. 97148270 |
Fuel Filter Cartridge with O-ring |
ISUZU Part No. 8-98037-011-0 GM Part No. 98037011 |
Fastener Torques
Intake Manifold Nut and Bolts |
24 N·m (17 lb ft) |
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Exhaust Manifold Nut and Bolts |
34 N·m (25 lb ft) |
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Injector |
19 N·m (14 lb ft) |
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Steering Gear Box Fixing Nuts and Bolts |
103 N·m (76 lb ft) |
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Propeller Shaft Flange Nuts |
103 N·m (76 lb ft) |
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Leaf Spring U-Bolt Nuts |
ISUZU / |
NPR |
NPR-HD |
NQR |
NRR |
W3500 |
W4500 |
W5500 |
W5500HD |
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Front |
127 N·m |
196 N·m |
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Rear |
284 N·m |
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Wheel Nuts |
490 N·m (362 lb ft) |
GVWR |
12,000 lb & 14500 lb |
17,950 & 19,500 |
Brake Rotor |
Standard 40mm (1.57 in) Limit 37mm (1.46in) |
Standard 42mm (1.65in) Limit 39mm (1.54in) |
Brake Drum |
Inside diameter limit 321.5mm (12.66in) |
Inside diameter limit 372mm (14.64in) |
Wheel Nuts |
490 N·m (362 lb ft) |
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