Tracking down replacement components for your 6-cylinder ag tractor is simple when you load this 538-page New Holland 8670A, 8770A, 8870A, 8970A parts catalog PDF on your shop computer. Inside, you get highly detailed exploded views showing the exact assembly order of the Megaflow hydraulic pump drive, cab climate control system, and engine block. Every diagram connects directly to complete factory parts lists, allowing you to quickly identify the exact OEM numbers for every bolt, seal, and gear. Verify that your electrical panel requires a 50 AMP main roadlamp fuse, or look up the specific hardware for the transmission directional clutch assembly before calling the dealer. Stop guessing at part numbers. Download this bookmarked file, jump straight to the exact component you need, and order your replacements with absolute confidence.
What's Inside This New Holland 8670A, 8770A, 8870A, 8970A Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Fuel Tank, Upper Fuel Tank, Fuel System W/ "a" Injection Pump, Air Cleaner | |
| Cooling System | Brake Cooling, Radiator, Water Pump, Fan Belt | |
| Engine | Piston Pump, Crankshaft, Camshaft, Oil Pump, Oil Cooler, Piston, Gasket Kits | |
| Electrical System | Harness, Potentiometer, Front Worklamps, Worklamps, Flasher Lamp, Lamp, Front Headlamps, Light Extensions | |
| Clutch & Transmission | Front Wheel Drive Clutch, Transmission Housing, Speed Clutch, Directional Clutch, Shift Lever Control, PTO Clutch, PTO Clutch Housing, Transmission | |
| PTO | PTO Drive Gears, PTO Valve | |
| Rear Axle, Differential & Brakes | Rear Wheels, Rear Wheels (Dual Wheels), Rear Wheel Weights, Brake Pedals, Brake Tubing, Brake Master Cylinder, Parking Brake, Parking Brake Controls | |
| Front Axle & Steering | Front Wheels, Front Axle, Tie Rod, Steering Cylinder, Steering Hydraulics, Steering Motor, Steering Support, Steering Column | |
| Hydraulics & 3-Point Hitch | Unloader Valve, Priority Valve, Standard Hydraulic Pump Drive, Megaflow Hydraulic Pump Drive, Gear Pump, Standard Hydraulics, Megaflow Hydraulics, Lift Cylinder Hydraulics | |
| Body & Operator Station | Throttle Cable, Seat Cushions, Seat Swivel, Seat Suspension, Hood, Front Fenders, Rear Fenders, Cab | |
| Decals & Accessories | Tool Box, Decals, French (Canada) Warning Decals, Dealer Installed Accessories | |
| Other Components | Front Weights, Tubing, Compressor Pulley, Tubes, Compressor, Axle Housing, Swivel Housing, Bevel Gear/Pinion Set |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Main Fuse I | 50 AMP | p. 353 |
| Main Transmission Fuse | 40 AMP | p. 353 |
| Main Roadlamp Fuse | 50 AMP | p. 353 |
| Main Worklamp Fuse | 50 AMP | p. 353 |
| Main Accessory Fuse | 40 AMP | p. 353 |
| Main Implement Socket Fuse | 40 AMP | p. 353 |
New Holland 8670A, 8770A, 8870A, 8970A Common Problems This Manual Covers
Need the exact main roadlamp fuse part number because New Holland 8670A field lights went dark
Check the electrical parts list on page 353. Locate the Main Roadlamp Fuse rated for 50 AMP. Match the item number in the exploded view to the OEM part number in the adjacent table. Order the exact replacement to restore your lighting circuit.
Manual Section: Electrical p. 353Searching for the exact OEM part number for the main transmission fuse after a sudden shifting failure
Review the electrical component diagram on page 353. Find the Main Transmission Fuse specified at 40 AMP. Note the reference number in the schematic and look it up in the parts index. Verify your machine serial number range before ordering the replacement.
Manual Section: Electrical p. 353Can't find the correct part numbers for broken interior cab molding clips and AC mounting brackets
Inspect the cab and interior parts diagram on page 470. Match your broken hardware to the exploded view. If accessory wiring is damaged, verify the Main Accessory Fuse rated at 40 AMP on page 353. Record the exact OEM part numbers from the table to order replacements.
Manual Section: Cab p. 470Looking for the exact hydraulic steering cylinder seal kit part number for a leaking 2WD front axle
Open the chassis parts diagram on page 142. Locate the steering cylinder components in the exploded view. Check the adjacent electrical list on page 353 for the 50 AMP Main Fuse I if the electronic steering pod fails. Use the parts list to confirm your required seal kit.
Manual Section: Front Axle & Steering p. 142Frequently Asked Questions
What is the torque specification for the cylinder head bolts on the 6-cylinder engine?
The manual specifies that the cylinder head bolts (Part # 87802207) are 9/16"-12 x 203.50mm. The quantity required for the engine is 7 bolts. p. 4
What is the part number for the engine oil filter?
The engine oil filter part number is 81879134 (quantity: 1 per engine). An alternative part number 86605897 is also listed for NH-E models. p. 14
What is the specification for the main bearing set for the crankshaft?
The standard main bearing set is part number 87790342. Various undersize sets are available, such as 87790343 for .002" (.05mm) undersize. p. 10
What is the part number for the standard inlet valve?
The standard inlet valve is part number 87802260. An oversize inlet valve (part number 87802261) is also available for .015" (.38mm) over. p. 4
What is the part number for the thermostat?
The thermostat part number is 87800842, and the quantity required for the engine is 2. p. 114
Is this New Holland 8670A manual a PDF I download?
This is a 538-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Are there any print restrictions on this New Holland 8670A manual?
Zero restrictions. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Reviews
There are no reviews yet.