Alternator for John Deere Tractor 6120, 6220, 6320, 6420, 6520, 6620 400-24090
Alternator for John Deere Tractor 6120, 6220, 6320, 6420, 6520, 6620 400-24090
Alternator for John Deere Tractor 6120, 6220, 6320, 6420, 6520, 6620 400-24090
Alternator for John Deere Tractor 6120, 6220, 6320, 6420, 6520, 6620 400-24090
Alternator for John Deere Tractor 6120, 6220, 6320, 6420, 6520, 6620 400-24090

Alternator for John Deere Tractor 6120, 6220, 6320, 6420, 6520, 6620 400-24090

Item #: 400-24090

30-DAY RETURN POLICY

If your order arrives and it’s not exactly what you want, you may return it within 30 days for a refund. We know that people sometimes order a part and then discover it’s not exactly the one they need for the repair. We understand and want to work with you. Just make sure the item is in its original packaging and in good condition free of damage.

When a returned product comes back to us, we’ll check it over to make sure it’s in ‘Like New’ condition and free from damage such as dents, scratches, cracks, abuse, defacement or indication of removed screws/fasteners or seals. Return processing may take up to 5 business days from the time your product is received by DB Electrical.

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DB Electrical alternators are highly engineered for excellence in performance.
  • Built to Beat the Heat: High temperature epoxy and high temperature grease withstand extreme heat
  • Heavy-duty rectifiers and high-quality regulators enhance superior charging performance
  • Most alternators are supplied with final test results and performance curve
  • Direct-fit replacement and easy installation made possible with OEM fitment specifications
  • Factory direct, money-saving alternator typically priced substantially less than OEM counterparts
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  • Product Info
  • Applications List
  • Part Replacement List
  • Policy Information
  • Reviews

Overview

DB Electrical Alternators
DB Electrical keeps vehicles of every shape and size moving forward – from mowers, motorcycles and ATVs to automobiles, tractors, pickups and large commercial trucks. We work directly with factories to ensure each component is manufactured to our exacting quality control standards. But because there is no middleman, we can offer these exceptional-quality electrical components at low factory direct prices.

With DB Electrical alternators, you’ll get …

  • Superior Quality Every Time – Our aftermarket alternators deliver performance that’s equivalent to the original.
  • Direct-Fit OEM Replacement Parts – DB Electrical aftermarket alternators are designed for perfect fitment to replace the ones that originally came with your vehicle.
  • Engineer-Tested Excellence – Our alternators go through a rigorous testing program to ensure optimal performance. Most alternators are supplied with their final test results and performance curve.

Reasons to choose DB Electrical for your next alternator:

  • Built to Take the Heat – Most DB Electrical alternators offer high-temperature epoxy, heavy-duty rectifiers, high-quality regulators, top-quality bearings and high-temperature grease for better charging and longer life under high-heat environments.
  • Depth of Inventory – Find both common and hard-to-find alternators for virtually any type of vehicle to travel over road, trail or water.
  • Brand New Alternator – Never settle for a secondhand one. Many places will try to sell you a used alternator for about the price we’ll sell you a new one.

The DB Electrical Advantage – 1-Year Warranty
DB Electrical delivers exceptional value for products that we stand behind with our total-confidence 1-year warranty. Yes, you have a full year to make sure your alternator meets your expectations.

Item Number: 400-24090

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
Unit TypeAlternator
Part TypeUNIT
Voltage12
RotationCW
Amperage150
RegulatorIR
Fan TypeIF
FitsJOHN DEERE

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
AGCO CHALLENGERCombine660BAllAGCO 8.4L Dsl
AGCO CHALLENGERCombine670BAllAGCO 8.4L Dsl
FENDTCombine9300R2009SISU Diesel
FENDTCombine9300R2010SISU Diesel
FENDTCombine9300R2011SISU Diesel
FENDTCombine9300R2012SISU Diesel
FENDTCombine9300R2013SISU Diesel
FENDTCombine9350R2009SISU Diesel
FENDTCombine9350R2010SISU Diesel
FENDTCombine9350R2011SISU Diesel
FENDTCombine9350R2012SISU Diesel
FENDTCombine9350R2013SISU Diesel
GLEANERCombineA652007AGCO 8.4L Dsl
GLEANERCombineA652008AGCO 8.4L Dsl
GLEANERCombineA662008AGCO 8.4L Dsl
GLEANERCombineA662009AGCO 8.4L Dsl
GLEANERCombineA662010AGCO 8.4L Dsl
GLEANERCombineA752007AGCO 8.4L Dsl
GLEANERCombineA752008AGCO 8.4L Dsl
GLEANERCombineA762008AGCO 8.4L Dsl
GLEANERCombineA762009AGCO 8.4L Dsl
GLEANERCombineA762010AGCO 8.4L Dsl
GLEANERCombineR662008AGCO 8.4L Dsl
GLEANERCombineR662009AGCO 8.4L Dsl
GLEANERCombineR662010AGCO 8.4L Dsl
GLEANERCombineR662011AGCO 8.4L Dsl
GLEANERCombineR762008AGCO 8.4L Dsl
GLEANERCombineR762009AGCO 8.4L Dsl
GLEANERCombineR762010AGCO 8.4L Dsl
GLEANERCombineR762011AGCO 8.4L Dsl
JOHN DEERETractor5080MAllJD 4-276 80HP Dsl
JOHN DEERETractor5080RAllJD 4-276 80HP Dsl
JOHN DEERETractor5090MAllJD 4-276 90HP Dsl
JOHN DEERETractor5090RAllJD 4-276 90HP Dsl
JOHN DEERETractor6120AllJD 4-276 80HP Dsl
JOHN DEERETractor6220AllJD 4-276 90HP Dsl
JOHN DEERETractor6320AllAll
JOHN DEERETractor6320LAllAll
JOHN DEERETractor6420AllAll
JOHN DEERETractor6420LAllAll
JOHN DEERETractor6520AllAll
JOHN DEERETractor6520LAllAll
JOHN DEERETractor6620AllAll
JOHN DEERETractor6820AllAll
JOHN DEERETractor6920AllAll
JOHN DEERETractor7130 PremiumAll6-414 Diesel
JOHN DEERETractor7220AllAll
JOHN DEERETractor7230 PremiumAll6-414 Diesel
JOHN DEERETractor7320AllAll
JOHN DEERETractor7330All6-414 Diesel
JOHN DEERETractor7330 PremiumAll6-414 Diesel
JOHN DEERETractor742094-OnAll
JOHN DEERETractor7430 PremiumAll6-414 Diesel
JOHN DEERETractor752094-OnAll
JOHN DEERETractor7530 PremiumAll6-414 Diesel
JOHN DEERETractor6105MAllJD PT 4.5L 105HP Dsl
JOHN DEERETractor6105RAllJD PT 4.5L 105HP Dsl
JOHN DEERETractor6115MAllJD PT 4.5L 115HP Dsl
JOHN DEERETractor6115RAllJD PT 4.5L 115HP Dsl
JOHN DEERETractor6125MAllJD PT 4.5L 125HP Dsl
JOHN DEERETractor6125RAllJD PT 4.5L 125HP Dsl
JOHN DEERETractor6140MAllJD PT 4.5L 140HP Dsl
JOHN DEERETractor6140RAllJD PT 6.8L 140HP Dsl
JOHN DEERETractor6150MAllJD PT 6.8L 150HP Dsl
JOHN DEERETractor6150RAllJD PT 6.8L 150HP Dsl
JOHN DEERETractor6150RH Hi-CropAllJD PT 6.8L 150HP Dsl
JOHN DEERETractor6170MAllJD PT 6.8L 170HP Dsl
JOHN DEERETractor6230 PremiumAllJD PT 4.5L 94HP Dsl
JOHN DEERETractor6330 PremiumAllJD PT 4.5L 105HP Dsl
JOHN DEERETractor6430 PremiumAllJD PT 4.5L 115HP Dsl
TUGPushbackGT-110AllDeutz Tier III

Replaces These Part Numbers

AGCOV836864048
ARROWHEADABO0422, 400-24090, B0124615057, IA1117, IA1545, MG52
BOSCH0-123-515-500, 0-123-515-501, 0-123-515-503, 0-124-615-043, 0-124-615-057
J&N Electrical Products400-24090, 400-24140
JOHN DEEREAL119537, AL166647, AL171541, SE501830
KHD118-2027
LESTER12381, 12782
LETRIKA (ISKRA) AFTERMARKETIA 1117
MAHLEMG52
MAHLE (OLD)MG699
MERCEDES BENZ012-154-14-02, A012-154-14-02
SISU DIESEL836864048
WAI12782N

Frequently Asked Questions

Q: Do I need a larger charge wire for a High Output unit?
A: The high amp unit will operate better than stock, but not to its full potential without a larger charge wire. It’s the same reason firetrucks do not use garden hoses. It is IMPARATIVE to have proper charge and ground cables.

Q: Does a High Amp unit cause any damage to my battery or my vehicles charging system?
A: As long as it is installed properly with battery in good condition, then no. A High Output unit works exactly like a factory unit and only produces what is being demanded. No alternator works continuously at full output. Higher amperage is not bad and will not hurt a battery, but high voltage will blow one up.

Q: Will aftermarket underdrive pulleys (crankshaft power pulley) have any effect on my alternator?
A: Yes, underdrive crankshaft pulleys slow all the components (power steering, a/c, and alternator) to provide more power to the rear wheels. In some cases, the charging systems will fall totally on the battery at idle and completely stop charging.

Q: Where is the best place to get a voltage reading of the alternator output?
A: You’ll get the most accurate voltage reading from the back of the alternator at the main charge post that runs directly to the battery. This must be done while the vehicle is running.

Q: Why is the pulley on a high amp alternator smaller than my stock pulley?
A: The smaller pulley advances the power curve of the alternator just slightly, which produces a little more amperage around the idle if needed.

Q: Will I need a smaller belt for my high amp unit?
A: This varies by application because not all belts and belt tensioners are in the same condition. The tensioner will always tell you if you need a new belt or not. If it’s in range, you will not. If it is out, you will. Generally, you will need a belt that is one inch shorter than stock. You should have no problem finding a replacement wherever you buy your parts. V belt applications simply re-adjust your belt tensions to 3/8” deflection.

Q: What is the difference between a one wire, self-exciting and a self-energizing regulator?
A: Nothing. They are all exactly the same. Different manufacturers use different terms for marketing. The only wire to hook up is the charge wire to the battery. This does require modification for the alternator charge light on the dash.

Q: My stock unit used a five-groove pulley, and you sent my high amp alternator with a 6 groove. Why and what can I do?
A: 5 groove overdrive pullies are not produced. Install the belt on the back groove of the pulley closest to the fan or body of the alternator. The fan is internal, and this application will work just fine.

Q: Can your alternator be run in dual or triple alternator applications?
A: Yes. When wired and mounted correctly, the alternator can run in either dual or triple applications.

Q: Will I need a new battery with a high amp alternator?
A: If your battery is in good condition, and in spec of its OEM rating, then no. Your battery should work equally well with either the OEM and a High Amp unit.

Customer Reviews

WARNING: California’s Proposition 65

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