Utility tractorsSpec sheet
New Holland 6635
The New Holland 6635 is a utility tractor built from 1996 to 1999. It's a 2WD model with power steering and a partial power shift transmission. The tractor has 24 forward gears and 12 reverse gears, giving farmers lots of options for different tasks. Under the hood, the 6635 has an Iveco 8045.25 engine. This diesel engine is turbocharged and liquid-cooled, with 4 cylinders and 8 valves. It has an above-average displacement of 238 ci and produces 75.69 hp at 2495 rpm. The tractor weighs 7720 lb, which is above average for its class. It has a three-point hitch with a very high capacity of 6439 lb. The hydraulic system is open center type, with a pump flow of 15.3 gpm and pressure of 2540 psi. The tractor comes with a ROPS (Roll-Over Protective Structure), and a cab is available for added comfort.
ManufacturerNew HollandPower75.69 hp(56.4 kW)Class60–100 HP tractors →Engine4-cylinderTransmissionPartial Power Shift
Key specifications
- Category
- Utility
- Engine power
- 76hp
- Operating weight
- 7,720 lb
- Transmission
- Partial Power Shift
Category comparison
6635 compared with its category
vs. Utility medianDistribution
Engine Power (hp)
All recorded Utility tractors
75.69 hp · 68th
This model
9
Median 55 hp
177
This modelUtility tractorsMediann = 5,383
The 6635 ranks at the 68th percentile for engine power among recorded utility tractors.
Overview
About the New Holland 6635
The New Holland 6635 is a utility tractor built from 1996 to 1999. It's a 2WD model with power steering and a partial power shift transmission. The tractor has 24 forward gears and 12 reverse gears, giving farmers lots of options for different tasks. Under the hood, the 6635 has an Iveco 8045.25 engine. This diesel engine is turbocharged and liquid-cooled, with 4 cylinders and 8 valves. It has an above-average displacement of 238 ci and produces 75.69 hp at 2495 rpm. The tractor weighs 7720 lb, which is above average for its class. It has a three-point hitch with a very high capacity of 6439 lb. The hydraulic system is open center type, with a pump flow of 15.3 gpm and pressure of 2540 psi. The tractor comes with a ROPS (Roll-Over Protective Structure), and a cab is available for added comfort.
Full specifications
Recorded specifications
General
| Manufacturer | New Holland |
|---|---|
| Model | 6635 |
| Category | Utility tractor |
| Type | 4x2 2WD |
| Years built | 1996–1999 |
| Operating weight | 7,720lb(3,502 kg) |
Engine
| Make | Iveco |
|---|---|
| Model | 8045.25 |
| Power | 75.69hp(56.44 kW) |
| Cylinders | 4 |
| Displacement | 238ci(3.9 L) |
| Bore | 4.09in(104 mm) |
| Stroke | 4.53in(115 mm) |
Transmission
| Type | Partial Power Shift |
|---|---|
| Forward gears | 24 |
| Reverse gears | 12 |
Chassis & drive
| Chassis | 4x2 2WD |
|---|---|
| Drive | 2WD |
| Steering | Power |
| Cab | ROPS, Cab available |
Hydraulics
| Type | Open Center |
|---|---|
| Pump flow | 15.3gpm(57.92 L/min) |
| Pressure | 2,540psi(17,510 kPa) |
Power take-off
| Rear PTO | Optional Transmission or Live PTO |
|---|---|
| PTO speed | 540rpm |
Dimensions
| Width | 72.6in(1,844 mm) |
|---|---|
| Height | 105.5in(2,680 mm) |
| Operating weight | 7,720lb(3,502 kg) |
Tires
| Front | 9.00-16ConvertShop size |
|---|---|
| Rear | 480/70R34ConvertShop size |
Capacities
| Cooling system | 3.7gal(14.01 L) |
|---|
Closest alternatives
6635 compared with the nearest models by horsepower
The closest utility models to the New Holland 6635 by rated horsepower are the County 762H and the Kubota MR77. The County 762H matches it on rated power. The Kubota MR77 matches it on rated power and weighs 800 lb less, so it is lighter for its power, which favors PTO and transport work over heavy draft. It entered production in 2015, 19 years after the 6635.
| Spec | New Holland 6635 | County 762H | Kubota MR77 |
|---|---|---|---|
| Engine power | 75.7 hp56.4 kW | 75.5 hp56.3 kW | 75.9 hp56.6 kW |
| Operating weight | 7,720 lb3,502 kg | - | 6,923 lb3,140 kg |
| Weight per hp | 102 lb/hp62 kg/kW | - | 91 lb/hp55 kg/kW |
| Displacement | 238 ci3.9 L | 256 ci4.2 L | 230 ci3.77 L |
| Cylinders | 4 | 4 | 4 |
| Transmission | Partial Power Shift | Gear | Electro-hydraulic wet disc |
| Drive | 2WD | 2WD | 4WD |
| Years built | 1996-1999 | - | 2015+ |
Calculators
Calculators for the 6635
PTO power
About 63 to 68 PTO hp
Estimated from the 75.69 hp engine rating. The calculator also estimates drawbar power by surface.
Implement sizing
Implements a 75.69 hp tractor can run
Maximum size is about a 9 ft rotary cutter or a 7.5 ft tiller. The calculator also sizes discs, plows and balers.
Ballast
119 lb per PTO hp as listed
Heavy draft work calls for 130 to 150 lb/hp. The calculator gives the ballast to add.
Units
75.69 hp is 56.4 kW
The converter gives kW and metric PS values, as used on European spec sheets.
Tires
Convert the 480/70R34 tire size
The calculator gives diameter, rolling circumference and the metric or inch equivalent.
Parts and manuals
Parts and manuals for the New Holland 6635
Each link opens a retailer search keyed to the fields recorded for this model. Confirm fitment against the serial plate before ordering.
Filters
- Oil filter for the Iveco 8045.25Amazon
Fits the Iveco 8045.25 4-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
- Air filter for the Iveco 8045.25Amazon
Fits the Iveco 8045.25 4-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
- Fuel filter for the Iveco 8045.25Amazon
Fits the Iveco 8045.25 4-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
- Hydraulic filter for the Iveco 8045.25Amazon
Fits the Iveco 8045.25 4-cylinder diesel engine listed for this model. Confirm the part number against the engine serial plate.
Manuals
- New Holland 6635 service and repair manualseManualOnline
Digital manuals. Built 1996 to 1999. Check the serial number range on the listing.
- New Holland 6635 operator's manualAmazon
Printed and reprint manuals. Built 1996 to 1999. Check the serial number range on the listing.
- New Holland 6635 service manualAmazon
Shop and repair manuals for this model.
Tires
- 9.00-16 tiresAmazon
Listed front tire size for the New Holland 6635.
- 480/70R34 tiresAmazon
Listed rear tire size for the New Holland 6635.
Links in this section go to retailers. A purchase through them earns this site a commission at no extra cost to the buyer. As an Amazon Associate, Heavy Equipment Specs earns from qualifying purchases. Affiliate disclosure
Category medians
6635 vs. Utility median
New Holland 6635 compared with other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 75.7 hp | 55 hp | +38% | 68th |
| Engine Displacement | 238 ci | 183 ci | +30% | 65th |
| Cylinders | 4 | 4 | at median | 50th |
| Forward Gears | 24 | 12 | +100% | 92nd |
| Operating Weight | 7,720 lb | 5,303 lb | +46% | 73rd |
| Width | 72.6 in | 66 in | +10% | 66th |
| Height | 106 in | 94.1 in | +12% | 78th |
| 3-Point Hitch Capacity | 6,439 lb | 3,197 lb | +101% | 82nd |
Medians and percentiles are calculated from the utility tractors in the database that have a recorded value for each specification (sample size 1,083–5,720 models).
Same manufacturer
Other New Holland models
Other manufacturers
Models with similar horsepower
Gallery
New Holland 6635 photos
FAQ
Frequently asked questions
What years was the New Holland 6635 manufactured?
Production of the New Holland 6635 ran from 1996 through 1999.
What type of transmission does the New Holland 6635 have?
The New Holland 6635 uses a Partial Power Shift transmission offering 24 forward gears.
What hydraulics does the New Holland 6635 have?
The New Holland 6635 uses an Open Center hydraulic system with a pump flow of 15.3 gpm.
What are the factory tire sizes for the New Holland 6635?
The New Holland 6635 comes with 9.00-16 front tires and 480/70R34 rear tires.
What three-point hitch category does the New Holland 6635 use?
The New Holland 6635 has a Category II three-point hitch rated to lift 6,439 lb.
How powerful is the New Holland 6635?
The New Holland 6635 has an engine power output of 75.69 hp. It is powered by a 4-cylinder engine displacing 238 ci.
What is the working weight of the New Holland 6635?
The operating weight of the New Holland 6635 is approximately 7,720 lb.
What routine service does the New Holland 6635 need?
Regular maintenance for the New Holland 6635 includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.