Engine
Engine power for the UT-R Series is a three cylinder, TK376/TK376U, a special clean and quiet diesel engine rated at 18.8 continuous horsepower (14.0 kW) at 2200 RPM, 18.9 continuous horsepower (14.1 kW) at 2250 RPM, and 19.6 continuous horsepower (14.6 kW) at 2425 RPM.
Model | TK376U | |
Fuel Type |
Diesel Fuel must conform to EN 590 No. 2 diesel fuel under normal conditions No. 1 diesel fuel is acceptable cold weather fuel |
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Oil Capacity |
11.6 quarts (11.0 liters/litres) crankcase and oil filter 12.8 quarts (12.1 liters/litres) w/Bypass Oil Filter - Fill to full mark on dipstick |
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Oil Type |
API Classification CJ-4 or CK-4 ACEA Rating E6 Note API Classification FA-4 oils are not approved for
use and should not be used.
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Oil Viscosity |
14 F to 122 F (-10 C to 50 C): SAE 15W-40 (Synthetic) 5 to 104 F (-15 to 40 C): SAE 15W-40 5 to 104 F (-15 to 40 C): SAE 10W-30 (Synthetic or Synthetic Blend) -13 to 104 F (-25 to 40 C): SAE 10W-40 -13 to 86 F (-25 to 30 C): SAE 10W-30 -22 to 122 F (-30 to 50 C): SAE 5W-40 (Synthetic) Below -22 F (-30 C): SAE 0W-30 (Synthetic) |
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Engine RPM |
UT-R SPECTRUM Low Speed Operation UT-R SPECTRUM High Speed Operation |
1500 ± 50 RPM 2150 ± 50 RPM |
Engine Oil Pressure |
20 to 50 psig (138 to 345 kPa) in low speed 40 to 60 psig (276 to 414 kPa) in high speed |
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Intake Valve Clearance | 0.006 to 0.010 in. (0.15 to 0.25 mm) | |
Exhaust Valve Clearance | 0.006 to 0.010 in. (0.15 to 0.25 mm) | |
Valve Setting Temperature | 70 F (21 C) | |
Fuel Injection Timing | 16 ± 1 degrees BTDC | |
Fuel Injection Nozzle Opening Pressure | 12.3 MPa + 0.98 MPa (1784 psig +142 psig) - 0 | |
Low Oil Pressure Switch/Sensor | 10 ± 2 psig (69 ± 14 kPa) - shutdown | |
High Coolant Temperature Sensor | 220 ± 5 F (104 ± 3 C) - shutdown | |
Engine Thermostat | 160 F (71 C) | |
Engine Coolant Type
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ELC (Extended Life Coolant), which is “RED” Use a 50/50 concentration of any of the following equivalents: Chevron Dex-Cool Texaco ELC Havoline Dex-Cool® Havoline XLC for Europe Shell Dexcool® Shell Rotella Saturn/General Motors Dex-Cool® Caterpillar ELC Detroit Diesel POWERCOOL® Plus |
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Coolant System Capacity | Check the coolant level in the overflow bottle. It should be above the Full Cold line. If necessary, add coolant to the overflow bottle. | |
Coolant Expansion Tank Cap Pressure | 10 psig (69 kPa) |