Alternator For Case/International Harvester STX280, STX330 Tractors; MAH-MG9

Alternator For Case/International Harvester STX280, STX330 Tractors; MAH-MG9

Item #: MAH-MG9

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.

To return a product, simply click here to start the process.

Order today to get this price.

$610.46
Next Day Air Shipping for
Order today and ships out next business day.
Order in the next hrs mins secs
Mechanics Choice: OEM performance at a money-saving price.
  • 100% New aftermarket unit built to meet OEM specifications
  • 1-year warranty protects you after your purchase
  • Factory direct pricing with no middleman markup delivers exceptional value
Check if this fits your vehicle
HOW TO FIND YOUR FITMENT
Two ways to ensure proper fitment
DO YOU KNOW YOUR
OEM PART NUMBER?
Look for your OEM part number below or use our search tool.
LOOK FOR YOUR
MAKE/ MODEL/ YEAR
Enter your make/model/year below to find the right part.
  • Product Info
  • Applications List
  • Part Replacement List
  • Policy Information
  • Reviews

Overview

Item Number: MAH-MG9

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
DescriptionAlternator
FamilyLetrika/Mahle AAN
Volt12
Amps175
Mount Hole ID 11/2-13
Mount Hole 1 TypeThreaded
Fan LocationInternal
Regulator LocationInternal
Terminal ID 2B+
Terminal 2 SizeM8x1.25
PolarityNegative
NotesChaff Shields on Front and Back

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
Case/International Harvester STX280 6-505 Diesel
Case/International Harvester STX280 20066-505 Diesel
Case/International Harvester STX330 6-540 Diesel
Case/International Harvester STX330 20066-540 Diesel
Case/International Harvester STX380 6-787 Diesel
Case/International Harvester STX380 20066-787 Diesel
Case/International Harvester STX380QT 6-787 Diesel
Case/International Harvester STX380QT 20066-787 Diesel
Case/International Harvester STX430 6-787 Diesel
Case/International Harvester STX430 20066-787 Diesel
Case/International Harvester STX430QT 6-787 Diesel
Case/International Harvester STX430QT 20066-787 Diesel
Case/International Harvester STX480 6-912 Diesel
Case/International Harvester STX480 20066-912 Diesel
Case/International Harvester STX480QT 6-912 Diesel
Case/International Harvester STX480QT 20066-912 Diesel
Case/International Harvester STX530 6-912 Diesel
Case/International Harvester STX530 20066-912 Diesel
Case/International Harvester STX530QT 6-912 Diesel
Case/International Harvester STX530QT 20066-912 Diesel
Case/International Harvester WD1203 4-274 Diesel
Case/International Harvester WD1203 20074-274 Diesel
Case/International Harvester WD1903 6-411 Diesel
Case/International Harvester WD1903 20076-411 Diesel
Case/International Harvester WD2303 6-411 Diesel
Case/International Harvester WD2303 20076-411 Diesel
New Holland H8040
New Holland H8040 2007
New Holland H8060
New Holland H8060 2007
New Holland H8080
New Holland H8080 2007
New Holland T9020 9.0L 6cyl 335HP Diesel
New Holland T9020 20079000cc, 9L 6-Cyl Diesel
New Holland T9030 12.9L 6cyl 385HP Diesel
New Holland T9030 200712900cc, 12.9L 6-Cyl Diesel
New Holland T9040 12.9L 6cyl 435HP Diesel
New Holland T9040 200712900cc, 12.9L 6-Cyl Diesel
New Holland T9050 12.9L 6cyl 485HP Diesel
New Holland T9050 200712900cc, 12.9L 6-Cyl Diesel
New Holland T9060 Cummins 15L 535HP QSX1
New Holland T9060 200715000cc, 15L QSX15
Steiger 330200719876
Steiger 330Case 6-54
Steiger 335200719876
Steiger 335Case 6-54
Steiger 380200728642
Steiger 380Iveco 6-78
Steiger 385200728642
Steiger 385Iveco 6-78
Steiger 430200728642
Steiger 430Case 6-78
Steiger 435200728642
Steiger 435Case 6-78
Steiger 480200733390
Steiger 480Cummins 6-91
Steiger 485200728642
Steiger 485Case 6-78
Steiger 530200733390
Steiger 530Cummins 6-91
Steiger 53515.0L - 535H
Steiger 535200715000cc, 15L
Steiger 385QT 200728642
Steiger 385QT Iveco 6-78
Steiger 435QT 200728642
Steiger 435QT Case 6-78
Steiger 485QT 200728642
Steiger 485QT Case 6-78
Steiger 530QT 200733390
Steiger 530QT Cummins 6-91
Steiger 535QT 15.0L - 535H
Steiger 535QT 200715000cc, 15L

Replaces These Part Numbers

ArrowheadIA1349, MG696, MG9
Atlantic Quality Parts1100-0535, 1700-0523, 1700-0546
CaseIH87439313, 87439317, 87677207, 87677208, 87720193
Ford/New Holland87439313, 87439317, 87677207, 87677208, 87720193
Iveco504132109, 504293775
J&N Electrical Products400-29010
Lester12790, 12791
Letrika/Iskra11.203.196, 11.203.255, 11.203.482, 11.203.739, 11.203.740, 11.203.741, 11.203.761, 11.204.172, 11.204.237, AAN5153, AAN5170, AAN5331, AAN5537, AAN5711, AAN5712, AAN5713, AAN5721, AAN8149, IA 1349
Lucas ElectricLRA03619
Mahle11.203.196, 11.203.255, 11.203.482, 11.203.739, 11.203.740, 11.203.741, 11.203.761, 11.204.172, 11.204.237, AAN5153, AAN5170, AAN5331, AAN5537, AAN5711, AAN5712, AAN5713, AAN8149, IA1349, MG696, MG9
Massey Ferguson6220229M91

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

Recommended Products

Keeping customers satisfied for over 35 years.

Customers keep returning because we keep delivering total satisfaction. Our key to success is selling parts that fit and perform like the originals. It's why so many mechanics make us their top choice.

  • Find The Right Part

    Use our advanced part finder or search by part number to find your part.

  • Same-Day Shipping

    Orders placed by 2pm EST will ship that same day.

  • Fast, Free Delivery

    Orders over $50 shipped FREE to the 48 adjoining U.S states.

  • Expert Advice

    Need help choosing your part? Please contact us for help.

Back To Top