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).

AH132823 - Ball Bearing
SKU: AH132823
4 in stock

JD9007 - Tapered Roller Bearing Cone
SKU: JD9007
155 in stock

JD39109 - Ball Bearing
SKU: JD39109
89 in stock

HXE16669 - Moisture Sensor Belted Plunger Strap
SKU: HXE16669
24 in stock

H93399 - Compression Spring
SKU: H93399
818 in stock

H234550 - Shoe Drive Inner; LH Cam
SKU: H234550
60 in stock

H234549 - Shoe Drive Inner (RH) Cam
SKU: H234549
169 in stock

H134118 - Precleaner Chaffer Frame Flange Housing
SKU: H134118
301 in stock

H133603 - Sieve & Chaffer Drive Hub
SKU: H133603
55 in stock

H133602 - Shoe Drive (RH) Cam-Outer
SKU: H133602
16 in stock

H133599 - Shoe Drive LH Cam-Outer
SKU: H133599
88 in stock

H133597 - Shoe Drive Shaft
SKU: H133597
36 in stock

H131170 - Sieve & Chaffer Drive Pulley
SKU: H131170
112 in stock

H113626 - Bearing Flange
SKU: H113626
128 in stock

H113625 - Bearing Flange
SKU: H113625
21 in stock

AXE13287 - Fan Speed and Concave Adjusting Motor
SKU: AXE13287
29 in stock

AL14674 - Cleaning Shoe Shaft Eccentric Locking Collar
SKU: AL14674
703 in stock

AH98176 - Idler Sprocket
SKU: AH98176
49 in stock

AH94450 - Flanged Idler Pulley
SKU: AH94450
176 in stock

AH229175 - Thrust; Seperator Fan Drive Bearing
SKU: AH229175
2464 in stock

AH167535 - Inner; Fan Driven Sheave
SKU: AH167535
14 in stock

AH156738 - Seperator Drive Shaft
SKU: AH156738
32 in stock

AH149543 - Adjuster Crank Assembly Sieve
SKU: AH149543
26 in stock

AH139297 - Bearing
SKU: AH139297
51 in stock
