Part of the New Holland Parts Manuals.
Need the exact replacement numbers for your New Holland TJ450 Tractor? This 558-page parts catalog breaks down every cab, chassis, and drivetrain assembly to show you exactly how the machine was built. You get complete exploded views detailing how the Mega Flow hydraulic manifold and power shift transmission fit together piece by piece. Open to the hydraulic sections to find detailed component identification for the steering control valve, piston pumps, and priority valves, all complete with factory part numbers and hardware sizes. Verify you are ordering enough fluids by checking the capacity charts, which confirm the 9.3-gallon engine oil requirement and 52-gallon hydraulic system limit before you head to the supplier. Stop ordering the wrong parts from generic websites. Download the file, jump to any section using the built-in bookmarks, and get your tractor back in the dirt.
What's Inside This New Holland TJ450 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Air Cleaner, Fuel Lines | |
| Cooling System | Hydraulic Pictorial Index, Radiator, Hydraulic Fan Drive, Hydrualic Fan Motor, Axle Hydraulics, Hydraulics, Hydraulic Fan Pump, Hydraulic Fan Oil Cooler | |
| Engine | Hydraulic Pictorial Index, Hydraulic Oil Cooler, Hydraulic Oil Cooler Mounting, Oil Filter, Axle Hydraulics, Piston Pump, High Output Hydraulics, Oil Filter Mega Flow Hydraulics | |
| Electrical System | Sensor, Alternator, Starter, Ground Speed Sensor, Lamp, Lamps, Headlamps, Harness | |
| Clutch & Transmission | Clutch, Transmission and Throttle Control, Power Shift Transmission, Power Takeoff Clutch | |
| PTO | Valve Assy Power Take Off, Power Takeoff Drive Shaft Mounting, Power Takeoff Drive Shaft Assemblies, Coupler Mounts Without Power Takeoff and Three Point Hitch, Power Takeoff Safety Sheilds, Power Takeoff Transfer Case, Power Takeoff Input Shaft | |
| Rear Axle, Differential & Brakes | Hydraulic Pictorial Index, Axle, Brake Control, Brake Valve, Valve | |
| Front Axle & Steering | Hydraulic Pictorial Index, Hydraulics, Steering Control Valve, Steering Wheel and Column, Steering Column | |
| Hydraulics & 3-Point Hitch | Hydraulic Pictorial Index, Mega Flow Hydraulic Controls, Cylinder, Valve Assy Pulse with Modulation, Axle Assy Jet Pump, Hydraulic Tank, Regulator Valve, Tow Block Valve | |
| Body & Operator Station | Axle, Cab Mounting, Interior Trim, Cab, Console, Seat, Front Frame, Rear Frame | |
| Decals & Accessories | Decals | |
| Other Components | Ether Start System, Air Induction System, Air Cooler, Engine, Throttle, Exhaust System, Controls, Wiper |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine Oil Capacity | 9.3 Gal | p. 534 |
| Engine Coolant Capacity | 11.4 Gal | p. 534 |
| Hydraulic System Capacity | 52 Gal | p. 534 |
| Alternator Capacity | 135 amp | p. 76 |
| High Capacity Alternator | 185 amp | p. 78 |
| Ether Start Cylinder Capacity | 310992A1 | p. 44 |
| Fan Diameter | 32 in | p. 40 |
| Heater Power | 300 W | p. 171 |
| Fuel Filter Micron Rating | 30 Micron | p. 61 |
| Battery Capacity | 1000 CCA | p. 96 |
| Weight of 45Kg Weight | 45 kg | p. 515 |
New Holland TJ450 Common Problems This Manual Covers
Need the correct inline fuel filter part number for a New Holland TJ450 experiencing fuel starvation.
Inspect the fuel lines exploded view on page 61 to identify the correct assembly. Locate the 30 Micron primary filter component and cross-reference the part number with your specific serial number range. Verify the shut-off valve replacement part number if the original housing threads are stripped.
Manual Section: Fuel Lines p. 61Cannot locate the exact mounting bracket part numbers for a wobbling main cooling fan assembly.
Check the radiator exploded diagram on page 40. Identify the replacement blades for the 32 in fan diameter and write down the corresponding mounting hardware part numbers. Order the exact bolt lengths listed in the index to secure the fan drive assembly properly on the machine.
Manual Section: Radiator and Cooling System p. 40Trying to find the replacement mounting hardware for a leaking cold weather starting aid cylinder.
Inspect the ether start components diagram on page 44. Find the exact mounting bracket part number required to hold the 310992A1 capacity cylinder securely. Cross-reference the retaining strap and metric bolt part numbers in the parts list below the diagram to ensure a tight fit.
Manual Section: Ether Start System p. 44Unsure which hydraulic control valve seal kit part number matches the leaking main rear circuit.
Check the hydraulic pictorial index to identify the correct valve block assembly. Confirm your machine takes the 52 Gal hydraulic system capacity listed on page 534 before ordering the corresponding seal kit part numbers required for that specific rear valve control block.
Manual Section: Hydraulic Pictorial IndexFrequently Asked Questions
What are the recommended service intervals for the TJ450 tractor?
The TJ maintenance guide specifies that engine oil should be changed every 100 hours and engine coolant every 100 hours. Additionally, hydraulic oil levels should be checked daily, and the transmission fluid level should be checked every 100 hours. p. 534
What is the capacity of the fuel tank for the TJ450 tractor?
The fuel tank capacity for the TJ450 tractor is 209 gallons. p. 534
What type of engine oil filter is used on the TJ450 tractor?
The engine oil filter for the TJ450 tractor is part number 441700A1, which is a Cummins filter. p. 54
What is the procedure for replacing the air cleaner element?
The air cleaner assembly (part number 418701A2) consists of a primary element (87408712) and a safety element (87408713). To replace, remove the filter cover (436001A1) and replace the elements as needed. p. 50
How will I receive this New Holland TJ450 Parts Catalog?
You get a 558-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Is this New Holland TJ450 Parts Catalog printable?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
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