Tractor reference
New Holland T6.155
Specifications, maintenance, parts and compatibility reference.
Reference set: Market not specified · T6.155 operator manual 90478716 Original New Holland operator manual publication 90478716, 2nd edition English, January 2022. Stored separately from the current-US version because the manual alone does not establish 2026 market/build scope.
Reference versions: United States · T6 Series current US diesel configuration · Current · Market not specified · T6.155 operator manual 90478716 · Market not specified · Stage V tractor family from 07/20
Current is selected by default. Historical, manual-specific and market-unspecified contexts stay separate so their parts and service data are not presented as current-US fitment.
Current is selected by default. Historical, manual-specific and market-unspecified contexts stay separate so their parts and service data are not presented as current-US fitment.
Numerical specifications are not published for this reference context unless a source explicitly supports them.
Maintenance schedule
Tasks shown here are limited to the selected reference context plus any generic machine-level tasks. Intervals are tied to the cited maintenance source, and each task shows its evidence confidence.
EngineCheck engine coolant levelApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 10 hours or daily
EngineCheck engine oil levelApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 10 hours or daily
CabCheck windscreen washer reservoirApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 10 hours or daily
CabClean cab air filtersApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 50 hours
ChassisGrease all lubrication fittingsApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 50 hours
CoolingClean cooler sectionApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 50 hours
Wheels & TiresCheck front wheel, rear wheel and rear wheel weight nutsApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 50 hours
DEF / SCRClean scr cover air ductsApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 50 hours
Wheels & TiresCheck tire pressures and tire conditionApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 50 hours
EngineInspect poly v-beltApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 150 hours
CabInspect compressor drive beltApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →Applies to the installed compressor configuration.
Every 150 hours
AttachmentsCheck front loader mounting screwsApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →Only when a front loader is fitted.
Every 150 hours
TransmissionCheck transmission, rear axle and hydraulic oil levelsApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 375 hours
PTOCheck front pto gearbox oil levelApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →Only when front PTO is fitted.
Every 375 hours
Front AxleCheck 4wd front axle differential and hub oil levelsApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →4WD axle only.
Every 375 hours
ElectricalCheck battery fluid levelApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 375 hours
EngineChange engine air cleaner outer elementApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →The manual also requires replacement when the restriction warning appears.
Every 750 hours
EngineCheck engine air intake connectionsApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 750 hours
EngineChange engine oil and filterApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →The current North America interval is independently confirmed by the official New Holland source used in migration 645.
Every 750 hours
TransmissionChange charge pump oil filterApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →Filter arrangement depends on the installed hydraulic/transmission configuration.
Every 750 hours
TransmissionCheck transmission oil cooler pipe couplingsApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 750 hours
HydraulicsCheck hydraulic accumulatorsApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →Where fitted; manual states annual pressure checks should be performed by an authorized dealer.
Every 750 hours
Front AxleChange 4wd planetary hub oilApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →4WD axle only.
Every 750 hours or every 2 years
DEF / SCRClean def / adblue suction filterApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →Manual describes a 100-micron filter in the main DEF supply line; no OEM part number is inferred here.
Every 750 hours
FuelChange first-stage fuel filter and fuel filter elementApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 750 hours
EngineChange engine air cleaner inner elementApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 1,500 hours or every 2 years
EngineChange engine oil separatorApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 1,500 hours or every 2 years
EngineChange poly v-beltsApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 1,500 hours or every 4 years
EngineCheck valve tappet clearanceApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →Manual recommends dealer adjustment because special tools are required.
Every 1,500 hours or every 2 years
TransmissionChange transmission, rear axle and hydraulic oilApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 1,500 hours or every 2 years
PTOChange front pto gearbox oilApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →Only when front PTO is fitted.
Every 1,500 hours
HydraulicsChange hydraulic suction pump oil filterApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →Applies to the relevant variable-displacement-pump configuration.
Every 1,500 hours or every 2 years
CabChange air-conditioning compressor drive beltApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →Applies when the air-conditioning compressor drive belt is fitted.
Every 1,500 hours or every 2 years
CabChange cab air filtersApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 1,500 hours or annually
Front AxleChange 4wd differential oilApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →4WD axle only.
Every 1,500 hours or every 2 years
BrakesChange air brake drier reservoirApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →Only when the air-brake system is fitted.
Every 1,500 hours or every 2 years
DEF / SCRChange def / adblue suction filterApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →Manual describes a 100-micron filter in the main DEF supply line; no OEM part number is inferred here.
Every 1,500 hours or every 2 years
ChassisGrease rear axle shaft bearingApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 1,500 hours or annually
DEF / SCRChange def / adblue main filterApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →Manual identifies this as the 10-micron main filter below the DEF supply module; no OEM part number is inferred here.
Every 3,750 hours or every 3 years
CoolingChange engine coolantApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 3,750 hours or every 4 years
CabChange air-conditioning receiver drierApplies to: Market not specified · T6.155 operator manual 90478716 · source 2022-01-01Evidence: High-confidence source-backed intervalSource: New Holland T6.145-T6.180 Operator Manual 90478716 maintenance chart →
Every 2 years