John Deere T660 Combine Parts
T660 parts and accessories
The John Deere T660 combine, produced from approximately 2012 to 2015, offered farmers a powerful and efficient grain harvesting solution. Boasting around 360 engine horsepower and available with header widths up to 40 feet, the T660 featured a robust conventional threshing and separating system. Its reliability and high throughput made it a popular choice for harvesting wheat, soybeans, and other grains.
The John Deere T660 was introduced as part of the T-Series combine lineup, manufactured approximately from 2012 to 2015. Powering the T660 is a John Deere PowerTech 9.0L 6-cylinder diesel engine, delivering approximately 360 horsepower. This engine provides ample power for threshing and separating high volumes of grain. The T660 utilizes a conventional threshing system featuring a high-capacity cylinder and concave. Grain tank capacity is rated at approximately 300 bushels, and the unloading auger achieves a rate of around 3.3 bushels per second (200 bu/min), minimizing downtime during harvest. Available header widths range from 25 to 40 feet, catering to various field sizes and crop types. The T660 offered options for both straw choppers and spreaders to manage residue efficiently. The combine's cab is designed for operator comfort and visibility, featuring advanced controls and monitoring systems. The T660 excels at harvesting small grains like wheat and barley, as well as soybeans and other row crops.
Specifications
| Engine | John Deere PowerTech 9.0L 360 HP Diesel |
|---|---|
| Separator Type | Conventional - 66-inch wide cylinder |
| Grain Tank | 300 bushels |
| Unloading Rate | 200 bu/min |
| Header Widths | 25-40 ft |
| Fuel Capacity | 210 gallons |
| Weight | Approximately 33,000 lbs |
| Years Produced | 2012-2015 (approximate) |
Maintenance Tips
- Concave Adjustment: Regularly inspect and adjust concave clearance to ensure proper threshing without excessive grain damage. Refer to the operator's manual for recommended settings based on crop type and conditions.
- Belt and Chain Tension: Check belt and chain tension throughout the combine regularly, especially the header drive belt and feeder house chain. Loose belts and chains can cause slippage, reduced performance, and premature wear.
- Sieve and Chaffer Cleaning: Clean sieves and chaffers frequently to remove debris and prevent plugging. This ensures optimal cleaning performance and reduces grain loss. Use compressed air or a brush to remove accumulated material.
- Bearing Greasing: Follow the recommended greasing schedule in the operator's manual for all bearings. Proper lubrication extends bearing life and prevents costly breakdowns.
History & Background
The John Deere T660 was introduced to provide farmers with a high-capacity, conventional combine option. While not a revolutionary design change, it represented an evolution of Deere's conventional combine technology, focusing on increased throughput and efficiency. The T660 played a significant role in meeting the demands of larger farming operations.
Frequently Asked Questions
What engine is in the John Deere T660?
The John Deere T660 is equipped with a John Deere PowerTech 9.0L 6-cylinder diesel engine, producing approximately 360 horsepower.
What is the grain tank capacity on a T660?
The grain tank capacity of the John Deere T660 is approximately 300 bushels, with an unloading rate of around 200 bushels per minute (3.3 bu/sec).
What type of separator does the T660 have?
The John Deere T660 utilizes a conventional threshing and separating system. It features a 66-inch wide cylinder and concave for effective grain separation.
What are common parts needed for the T660?
Common wear parts for the T660 include concaves, rasp bars, belts (header, feeder house, separator), chains (feeder house, elevator), bearings, auger fingers (unloading auger, grain tank), and sickle sections (header).

AH131330 - Concave Grate
SKU: AH131330
9 in stock

Z61813 - Pinion Gear; Feeder House Pin
SKU: Z61813
31 in stock

Z12714 - Pinion; Feeder House Gear
SKU: Z12714
20 in stock

R111692 - Deck Plate Indicator Shaft
SKU: R111692
194 in stock

M72598 - Quick Lock Pin
SKU: M72598
3460 in stock

JD10011 - Bearing (LH)
SKU: JD10011
65 in stock

HXE111854 - Chain Guide Support
SKU: HXE111854
42 in stock

H93927 - Feeder Conveyor Shaft Bearing Housing
SKU: H93927
86 in stock

H234587 - 656 MM Guide; Chain
SKU: H234587
213 in stock

H207015 - Input; Feeder House Gear
SKU: H207015
113 in stock

H177985 - Reverser Gearbox Shaft
SKU: H177985
12 in stock

H171960 - Upper Return Wear Strip
SKU: H171960
1173 in stock

H170141 - Pivot Idler Spring
SKU: H170141
194 in stock

H159614 - Upper Feeder House Shaft Sprocket
SKU: H159614
33 in stock

H159613 - Upper Feeder House Shaft Sprocket
SKU: H159613
18 in stock

H157101 - Reel Pump Drive Sheave
SKU: H157101
65 in stock

H149461 - Top Wear Plate; Feeder House
SKU: H149461
78 in stock

H149460 - RH Wear Plate; Bottom
SKU: H149460
106 in stock

H149459 - LH Wear Plate; Bottom
SKU: H149459
111 in stock

H148133 - Rear Engine Mount Cup Bearing
SKU: H148133
61 in stock

H148132 - Cushion Bushing
SKU: H148132
112 in stock

H147593 - Upper Shaft Feeder House Housing-Bearing
SKU: H147593
37 in stock

H147482 - Upper Feederhouse Shaft Bracket
SKU: H147482
54 in stock

H131088 - Drum Adjusting Eyebolt
SKU: H131088
86 in stock
