Download the complete NEW HOLLAND T6.125 / T6.145 / T6.155 / T6.165 / T6.175 / T6.160/ T6.180 AND T6.145 / T6.155 / T6.165 / T6.175 / T6.180 DYNAMIC COMMAND AND T6.145 / T6.155 / T6.165 / T6.175 / T6.180 AUTOCOMMAND™ TIER 4B (FINAL) TRACTOR Service Repair Manual in PDF format. This factory workshop manual provides detailed repair procedures, troubleshooting information, specifications, and overhaul instructions for the machine. It is intended for professional technicians, repair workshops, equipment owners, and experienced DIY mechanics who need accurate factory service information.
Why This Repair Manual Is Essential
Modern construction and agricultural equipment contains complex hydraulic, electrical, and powertrain systems. Diagnosing problems without the correct service information can result in unnecessary parts replacement and extended downtime.
The NEW HOLLAND T6.125 / T6.145 / T6.155 / T6.165 / T6.175 / T6.160/ T6.180 AND T6.145 / T6.155 / T6.165 / T6.175 / T6.180 DYNAMIC COMMAND AND T6.145 / T6.155 / T6.165 / T6.175 / T6.180 AUTOCOMMAND™ TIER 4B (FINAL) TRACTOR Service Repair Manual provides step-by-step instructions that help you identify faults, perform repairs correctly, and verify that the machine is operating within factory specifications.
This manual is especially valuable if you:
* Perform your own repairs
* Operate a repair workshop
* Maintain a fleet of machines
* Purchased a used machine without documentation
* Need wiring diagrams or hydraulic schematics
* Are performing a major overhaul or component replacement
This workshop manual typically covers the following systems:
Part number 51666758
Models Cover:
T6.145 AutoCommand™ Sidewinder II – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6145*HEG01001 – ]
North America Engine: F4DFE414W*B001
T6.155 AutoCommand™ Sidewinder II – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6155*HEG01001 – ]
North America Engine: F4DFE414X*B001
T6.165 AutoCommand™ Sidewinder II – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6165*HEG01001 – ]
North America Engine: F4DFE414Y*B001
T6.175 AutoCommand™ Sidewinder II – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6175*HEG01001 – ]
North America Engine: F4DFE414Z*B001
T6.180 AutoCommand™ Sidewinder II – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6180*JEG01001 – ]
North America Engine: F4DFE614G*B002
T6.125 Standard – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6125*HEG01001 – ]
North America Engine: F4DFE414D*B002
T6.145 Standard – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6145*HEG01001 – ]
North America Engine: F4DFE4134*B011
T6.145 Dynamic Command Sidewinder II – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6145*HEG01001 – ]
North America Engine: F4DFE414W*B001
T6.155 Standard – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6155*HEG01001 – ]
North America Engine: F4DFE4133*B014
T6.155 Dynamic Command Sidewinder II – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6155*HEG01001 – ]
North America Engine: F4DFE414X*B001
T6.160 Standard – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6160*KEG01001 – ]
North America Engine: F4DFE614B*B002
T6.165 Standard – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6165*HEG01001 – ]
North America Engine: F4DFE4132*B010
T6.165 Dynamic Command Sidewinder II – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6165*HEG01001 – ]
North America Engine: F4DFE414Y*B001
T6.175 Standard – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6175*HEG01001 – ]
North America Engine: F4DFE4131*B015
T6.175 Dynamic Command Sidewinder II – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6175*HEG01001 – ]
North America Engine: F4DFE414Z*B001
T6.180 Standard – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6180*HEG01001 – ]
North America Engine: F4DFE6132*B007
T6.180 Dynamic Command Sidewinder II – TIER 4B (FINAL) and STAGE IV (Mother Regulation) [HACT6180*HEG01001 – ]
North America Engine: F4DFE614G*B002
Introduction
Engine
Clutch
Transmission
Four Wheel Drive System
Front Axle System
Rear Axle System
Power Take Off
Brakes and Controls
Hydraulic Systems
Hitches, Drawbars and Implement Couplings
Frames and Ballasting
Steering
Wheels
Cab Climate Control
Electrical System
Platform, Cab, Bodywork, and Decals
Special Tool Index
The exact contents may vary depending on the machine serial number and production year.
PDF Features
This workshop manual is delivered in **PDF format** for instant access and easy storage.
Product Details
Format: PDF
Language: English
Compatible with Windows, Mac, iPhone, iPad, Android devices, and tablets
Printable: Yes
Searchable: Yes
Zoom support: Yes
The searchable PDF allows you to quickly find specific procedures, specifications, or component names without manually searching through hundreds of pages.
Free Online Preview
51666758-New Holland T6.125 T6.145 T6.155 T6Preview selected pages from the original NEW HOLLAND T6.125 / T6.145 / T6.155 / T6.165 / T6.175 / T6.160/ T6.180 AND T6.145 / T6.155 / T6.165 / T6.175 / T6.180 DYNAMIC COMMAND AND T6.145 / T6.155 / T6.165 / T6.175 / T6.180 AUTOCOMMAND™ TIER 4B (FINAL) TRACTOR Service Repair Manual PDF before purchasing. The preview allows you to verify the manual structure, illustrations, wiring diagrams, and technical content. Only selected pages are shown; the purchased PDF includes the complete manual.
Frequently Asked Questions
Is this a complete workshop manual?
Yes. This is a complete factory-style service repair manual containing repair procedures, specifications, and diagnostic information.
Can I print the manual for workshop use?
Yes. You may print individual pages or the entire document for personal or workshop use.
Is this suitable for a beginner?
Basic maintenance procedures are easy to follow, but some repairs require mechanical experience and proper tools.
If you need assistance confirming serial number coverage or selecting the correct manual for your machine, please contact us before purchasing. We will be happy to help.