Ford New Holland 6610O Tractor Parts
6610O parts and accessories
The Ford New Holland 6610O tractor, manufactured from 1981 to 1992, was a popular choice among farmers for its reliability and versatility. Powered by a robust diesel engine producing approximately 68 horsepower (engine), the 6610O delivered around 60 PTO horsepower, making it well-suited for a variety of agricultural tasks. Its durable construction and efficient performance solidified its place as a dependable workhorse in the field.
The Ford New Holland 6610O was part of the highly successful 10 Series tractor lineup, produced from 1981 to 1992. It built upon the legacy of earlier Ford tractor models, offering improved performance and operator comfort. The 6610O is equipped with a Ford 268 CID 4-cylinder diesel engine, delivering approximately 68 engine horsepower. Transmission options typically included an 8-speed gear transmission or a Dual Power transmission providing more gear choices. The PTO delivers around 60 horsepower at 540 RPM, making it suitable for operating implements like mowers, balers, and rotary cutters. Hydraulic capacity is approximately 12 GPM, providing ample power for implements and loader work. The 3-point hitch is a Category II, capable of lifting a significant amount of weight. The 6610O was commonly used for row crop work, hay production, livestock operations, and general tillage tasks. Compared to smaller models like the 5610, the 6610 offered more power and lifting capacity, while models like the 7610 provided even greater capabilities for larger farms.
Specifications
| Engine | Ford 268 CID 68 HP Diesel |
|---|---|
| PTO HP | 60 HP @ 540 RPM |
| Transmission | Gear, 8-Speed or Dual Power |
| Hydraulics | 12 GPM, 2 remotes |
| 3-Point Hitch | Category II, 3950 lbs |
| Fuel Capacity | 23 gallons |
| Weight | 6500 lbs |
| Years Produced | 1981-1992 |
Maintenance Tips
- Check the engine oil level daily and change the oil and filter every 250 hours of operation using the recommended oil type.
- Inspect and service the hydraulic system regularly, including checking for leaks, changing the hydraulic fluid and filter every 500 hours, and cleaning the hydraulic strainer.
- Maintain a clean fuel system by using high-quality fuel, changing the fuel filter every 250 hours, and draining any water or sediment from the fuel tank periodically.
- Before storing the tractor for an extended period, drain the fuel tank, add fuel stabilizer, and lubricate all grease fittings to prevent corrosion and ensure easy start-up in the spring.
History & Background
The Ford New Holland 6610O was introduced in 1981 as part of the updated 10 Series tractor line. This series brought improvements in engine performance, hydraulics, and operator comfort compared to previous Ford models. The 6610 became a popular choice for farmers due to its balance of power, reliability, and affordability, contributing significantly to Ford's market share during its production run.
Frequently Asked Questions
What engine is in the Ford New Holland 6610O?
The Ford New Holland 6610O is powered by a Ford 268 CID 4-cylinder diesel engine producing approximately 68 horsepower.
What is the PTO horsepower on a 6610O?
The PTO horsepower on a Ford New Holland 6610O is approximately 60 horsepower at 540 RPM.
What oil filter fits the 6610O?
Common oil filter cross-references for the 6610O include Ford/New Holland part number E9NN6714AA, Fram PH3600, and Wix 51773. Always verify the correct filter based on your tractor's serial number.
What are common parts needed for the 6610O?
Commonly needed parts for the Ford New Holland 6610O include oil filters, fuel filters, air filters, hydraulic filters, fan belts, radiator hoses, hydraulic pump seals, steering cylinder seals, clutch discs, and brake shoes.

D9NN7048BA - PTO Input Bearing Retainer Oil Seal
SKU: D9NN7048BA
88 in stock

D8NNB733AC - PTO Output Shaft Sleeve
SKU: D8NNB733AC
10 in stock

D8NNB728BC - PTO (1000 RPM) Shaft
SKU: D8NNB728BC
111 in stock

D3NNP733A - PTO (Std) Feathering Spring
SKU: D3NNP733A
60 in stock

D3NNN883A - Pump Idler Gear
SKU: D3NNN883A
23 in stock

D2NNN776A - PTO Drive Clutch Valve Support
SKU: D2NNN776A
38 in stock

C5NN7A684A - PTO Shaft
SKU: C5NN7A684A
14 in stock

C5NN799A - PTO Input Shaft Oil Seal
SKU: C5NN799A
130 in stock

C5NN747A - PTO Housing Gasket
SKU: C5NN747A
1200 in stock

C0NN7A548A - PTO Clutch Piston (Outer) Seal
SKU: C0NN7A548A
122 in stock

9N735B - 1.125" PTO Shaft Sleeve
SKU: 9N735B
102 in stock

9824099 - PTO Clutch Driving Plate
SKU: 9824099
41 in stock

9823545 - Rear PTO Seal
SKU: 9823545
197 in stock

87588896 - PTO Bearing
SKU: 87588896
33 in stock

83948847 - PTO Shaft
SKU: 83948847
22 in stock

81879096 - PTO Drive Clutch Hub
SKU: 81879096
15 in stock

81871420 - PTO Clutch Assembly
SKU: 81871420
Out of stock

81862903 - PTO Shaft
SKU: 81862903
11 in stock

81819791 - Brake/Drive Clutch Actuating Arm
SKU: 81819791
18 in stock

5171356 - PTO Output (1000 RPM) Shaft
SKU: 5171356
34 in stock

5171332 - 540 RPM PTO Output Shaft
SKU: 5171332
12 in stock

510892 - TIMKEN CUP
SKU: 510892
471 in stock

510884 - BEARING
SKU: 510884
249 in stock

373227S - PTO Clutch Piston (Inner) Seal
SKU: 373227S
288 in stock
