John Deere 6600 Combine Parts
The John Deere 6600 combine, manufactured from 1972 to 1978, was a popular and reliable workhorse for many farmers. Powered by a robust John Deere diesel engine producing around 105 horsepower, it offered header widths up to 20 feet, making it suitable for various field sizes. Its conventional separator design provided efficient threshing and separation, establishing the 6600 as a valued machine in grain harvesting.
The John Deere 6600 combine was introduced in 1972 and remained in production until 1978. It was designed as a versatile and dependable combine for small to medium-sized farms. The 6600 is powered by a John Deere 404 cubic inch (6.6L) diesel engine, producing approximately 105 horsepower. Its conventional threshing system features a 40-inch wide cylinder and walkers for grain separation. The grain tank capacity is around 85 bushels. The unloading auger is a standard speed auger which unloaded at around 30-40 bu/min. Available header widths ranged from 13 to 20 feet, accommodating different crop and field conditions. Optional equipment included straw chopper and spreader attachments to manage residue. The cab offered basic controls and visibility for operator comfort. The 6600 was well-regarded for its ability to efficiently harvest wheat, soybeans, and corn in various field conditions.
Specifications
| Engine | John Deere 404 CID 105 HP Diesel |
|---|---|
| Separator Type | Conventional - 40-inch Cylinder |
| Grain Tank | 85 bushels |
| Unloading Rate | 30-40 bu/min |
| Header Widths | 13-20 ft |
| Fuel Capacity | 55 gallons |
| Weight | Approx. 13,000 lbs |
| Years Produced | 1972-1978 |
Maintenance Tips
- Concave Adjustment: Regularly check and adjust the concave clearance to ensure proper threshing and minimize grain damage. Consult the operator's manual for recommended settings based on the crop being harvested.
- Belt and Chain Tension: Inspect all belts and chains for wear and proper tension. Loose or worn belts/chains can cause slippage, reduced performance, and potential damage.
- Sieve and Chaffer Cleaning: Clean the sieves and chaffer regularly to prevent buildup of debris, which can reduce cleaning efficiency and increase grain loss.
- Bearing Greasing: Lubricate all bearings according to the manufacturer's recommendations. Proper lubrication extends bearing life and prevents premature failure. Pay close attention to header bearings, as these are often exposed to dust and moisture.
History & Background
The John Deere 6600 combine was introduced in 1972 as a successor to earlier models and aimed to provide a more efficient and reliable harvesting solution. It offered improvements in engine power and header width. The 6600's robust design and performance contributed to its popularity and cemented its place in the history of John Deere combines.
Frequently Asked Questions
What engine is in the John Deere 6600?
The John Deere 6600 is powered by a John Deere 404 cubic inch (6.6L) diesel engine, producing approximately 105 horsepower.
What is the grain tank capacity on a 6600?
The grain tank capacity on a John Deere 6600 is approximately 85 bushels, and the unloading rate is around 30-40 bushels per minute.
What type of separator does the 6600 have?
The John Deere 6600 utilizes a conventional separator system, featuring a 40-inch wide cylinder and walkers for grain separation.
What are common parts needed for the 6600?
Commonly needed parts for the John Deere 6600 include concaves, rasp bars, belts, chains, bearings, auger fingers, and sickle sections. These are wear parts that need periodic replacement to maintain optimal performance.

H89306 - PRIM. COUNTRSHAFT SPACER
SKU: H89306
13 in stock

H86128 - Straw Walker Driven Sprocket
SKU: H86128
19 in stock

H76277 - Secondary Countershaft
SKU: H76277
8 in stock

H119613-SET - Walker Wood Bearing (Set of 2) Block
SKU: H119613-SET
68 in stock

H108571 - Fan Shaft
SKU: H108571
3 in stock

AH99750 - Top; Long Finger Chaffer
SKU: AH99750
21 in stock

AH99749 - Top; Short Finger Chaffer
SKU: AH99749
3 in stock

AH99748 - Top; Short Finger Chaffer
SKU: AH99748
17 in stock

AH98176 - Idler Sprocket
SKU: AH98176
49 in stock

AH97752 - Chaffer Shoe Frame
SKU: AH97752
6 in stock

AH93701 - Straw Walker
SKU: AH93701
15 in stock

AH93318 - Flat Idler Pulley
SKU: AH93318
164 in stock

AH87249 - Walker & Shoe Drive Sprocket
SKU: AH87249
30 in stock

AH87207 - Cleaning Fan Sheave Bearing
SKU: AH87207
5 in stock

AH85352 - Bottom; Adjustable Blunt Finger Sieve
SKU: AH85352
7 in stock

AH84243 - Walker & Shoe Drive Sprocket
SKU: AH84243
11 in stock

AH77804 - Bottom; Round Hole Sieve
SKU: AH77804
4 in stock

AH21440 - Idler Sprocket
SKU: AH21440
61 in stock

AH173726 - Cleaning Fan Driven; 8 3/8" Inner Sheave
SKU: AH173726
32 in stock

AH112543 - Sieve Shoe Frame
SKU: AH112543
9 in stock

V12044H - Cylinder Bars
SKU: V12044H
1 in stock

V12044C - Cylinder Bars
SKU: V12044C
9 in stock

V12044 - Cylinder Bars
SKU: V12044
Out of stock

R27899 - Bushing
SKU: R27899
11 in stock
