| | 1978 - 1982 |
| Iron Horses Series | | Row-Crop tractor |
|
Series map:
4640
4840
172.2hp*
200.0hp*
*Estimated engine power for comparison only.
| Engine Detail |
| John Deere |
| turbocharged intercooled diesel |
| 6-cylinder |
| liquid-cooled |
| Displacement | 466 ci
7.6 L
|
| Bore/Stroke | 4.5625x4.75 inches
116 x 121 mm
|
| Air cleaner | dual paper elements
|
| Pre-heating | ether injection
|
| Compression | 15.5:1
|
| Rated RPM | 2200
|
| Idle RPM | 800-2400
|
| Operating RPM | 1500-2200
|
| Firing order | 1-5-3-6-2-4
|
| Starter volts | 12
|
| Coolant capacity | 40 qts
37.9 L
|
| Page information |
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| TractorData is a family-owned small business located in Minnesota that has been providing reference information on tractors since 1999. |
| Peter Easterlund - owner/author |
| Email: Peter@TractorData.com |
| Updated on June 18, 2025 |
©2000-2025 - TractorData.com®. Notice: Every attempt is made to ensure the data listed
is accurate. However, differences between sources, incomplete listings,
errors, and data entry mistakes do occur.
Consult official
literature from the manufacturer before attempting any service or repair.
