John Deere 3400 Tractor Parts
3400 parts and accessories
The John Deere 3400 tractor, manufactured from 1999 to 2006, was a versatile workhorse for farmers. Powered by a reliable Yanmar diesel engine producing around 45 horsepower, it provided ample power for a variety of tasks. Its strong PTO horsepower made it popular for running implements like rotary cutters and balers, making it a valuable asset in hay production and other farming operations.
The John Deere 3400 was introduced in 1999 as part of the company's compact utility tractor lineup and was produced until 2006. It features a Yanmar 3TNE84 diesel engine, delivering approximately 45 horsepower. The engine has a displacement of around 99 cubic inches. This engine is known for its fuel efficiency and reliability. The 3400 is typically equipped with a gear transmission offering a range of speeds suitable for different tasks. The PTO horsepower is around 38 HP, available at 540 RPM. The hydraulic system delivers around 7.2 GPM to the implement. It has a Category I 3-point hitch, with a lift capacity of approximately 1433 lbs. This tractor is commonly used in applications such as hay production, livestock management, and light tillage. Compared to larger John Deere models, the 3400 offers a more compact size and maneuverability, making it ideal for smaller farms or tasks requiring precision in tight spaces. The ease of operation and lower operating costs made it a popular choice for farmers.
Specifications
| Engine | Yanmar 3TNE84 45 HP Diesel |
|---|---|
| PTO HP | 38 HP @ 540 RPM |
| Transmission | Gear 9F/3R |
| Hydraulics | 7.2 GPM, 1 remotes |
| 3-Point Hitch | Category I, 1433 lbs |
| Fuel Capacity | 11.9 gallons |
| Weight | 3373 lbs |
| Years Produced | 1999-2006 |
Maintenance Tips
- Engine Oil & Filter: Change engine oil and filter every 200-250 hours using a high-quality diesel engine oil that meets John Deere specifications.
- Hydraulic System: Inspect hydraulic fluid levels regularly and change the hydraulic filter every 400-500 hours. Use only approved hydraulic fluid to prevent damage to seals and components.
- Fuel System: Use a fuel stabilizer during seasonal storage to prevent fuel degradation and keep the fuel filter clean to ensure consistent fuel delivery to the engine.
- Cooling System: Check coolant levels and condition regularly. Flush and replace coolant every two years to prevent corrosion and maintain optimal engine cooling performance.
History & Background
The John Deere 3400 was released in 1999 as a compact utility tractor catering to smaller farms and diverse agricultural tasks. While it didn't undergo major redesigns during its production run, it maintained a reputation for reliability and versatility. The 3400 played a significant role in providing affordable and efficient power for a wide range of farming applications.
Frequently Asked Questions
What engine is in the John Deere 3400?
The John Deere 3400 is equipped with a Yanmar 3TNE84 diesel engine, producing approximately 45 horsepower. It's a reliable and fuel-efficient engine designed for agricultural applications.
What is the PTO horsepower on a 3400?
The PTO horsepower on the John Deere 3400 is approximately 38 HP, available at 540 RPM.
What oil filter fits the 3400?
The John Deere 3400 uses a John Deere oil filter part number AM125423. Cross-references include Wix 51394, Fram PH6022, and Baldwin B1434.
What are common parts needed for the 3400?
Common wear parts for the John Deere 3400 include engine oil filters, fuel filters, air filters, hydraulic filters, belts (fan belt, alternator belt), hydraulic cylinder seal kits, steering components (tie rod ends), clutch components (clutch disc, pressure plate), and PTO shaft seals.

RE27368 - Main (.030") Bearing
SKU: RE27368
6 in stock

RE27364 - Connecting Rod (.030") Bearing Set
SKU: RE27364
36 in stock

RE27360 - Main (.020") Bearing
SKU: RE27360
96 in stock

RE27358 - Connecting Rod (.020") Bearing Set
SKU: RE27358
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RE27353 - Main (.010") Bearing
SKU: RE27353
228 in stock

RE27352 - Main (Std) Bearing
SKU: RE27352
160 in stock

RE27349 - Connecting Rod (.010") Bearing Set
SKU: RE27349
159 in stock

RE26283 - Balancer with Gear (LH) Shaft
SKU: RE26283
3 in stock

RE26282 - Balancer w/ Gear (RH) Shaft
SKU: RE26282
5 in stock

RE20585 - Crankshaft
SKU: RE20585
4 in stock

RE16920 - Upper Set (276) Gasket
SKU: RE16920
109 in stock

R27928 - Durometer 75 (25/Pack) .070" Thick O-Ring; .926" ID X 1.066" OD
SKU: R27928
450 in stock

RE66094 - Major Engine Overhaul Kit
SKU: RE66094
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R54123 - Plug Adapter Fitting
SKU: R54123
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AR68801 - Weight Retainer Plate
SKU: AR68801
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AL35753 - Muffler (Underhood) Vertical Exhaust
SKU: AL35753
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R98063 - Intake Valve (Std) Insert
SKU: R98063
90 in stock

R98062 - Intake (Std) Valve
SKU: R98062
76 in stock

R97492 - Exhaust (.015") Valve
SKU: R97492
257 in stock

R97490 - Intake (.015") Valve
SKU: R97490
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R92425 - Head Gasket
SKU: R92425
103 in stock
R91889 - Valve (12 halves) Lock
SKU: R91889
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R90692 - Exhaust (Std) Valve
SKU: R90692
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R85687 - Exhaust Valve (Std) Insert
SKU: R85687
76 in stock
