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12V 60A Auto Alternator for Beiqi Futian 486 Jmc 1032 Foton ...

The JMC 3701100BBB1 is a heavy-duty alternator for JMC trucks (like N396, JX1021DF) and Isuzu NKR/4JB1 diesel engines, known for its robust build with cast iron/steel, designed for 2.4L/2.8L engines, providing reliable 12V power for electrical systems and battery charging, often 90A or 80A. It's an industrial-grade replacement part, ensuring durability in demanding environments, featuring cooling fins and standard connectors for easy integration.

Key Specifications & Compatibility:

JX493ZQ4A Engine Alternator 3701100BBB1 for N396 JX1021DF ...
Nov 5, 2025 — Product details. The JX493ZQ4A Engine Alternator 3701100BBB1 is a rugged, industrial-grade alternator designed for JMC ...
Alibaba.com
PASOU 3701100BBB1/JFZB1808-021 Alternator Generator ...
Buy PASOU 3701100BBB1/JFZB1808-021 Alternator Generator Assembly for ISUZU NKR55 JMC 1030 4JB1 diesel Engine at Aliexpress for . F...
www.aliexpress.com
jmc 3701100bbb1 alternator asm ( nett ) 90a
We supply JMC 3701100BBB1 ALTERNATOR ASM ( NETT ) 90A and help to choose best JMC TRUCK PARTS for you. Any questions,pls do not he...
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12V 60A Auto Alternator for BEIQI FUTIAN 486 JMC 1032 ...

Alibaba

https://www.alibaba.com › ... › Car Alternator

Alibaba

https://www.alibaba.com › ... › Car Alternator

Find the reliable 12V 60A auto alternator for BEIQI FUTIAN 486 JMC 1032 FOTON JFZB1100 3701100BBB1 3701010AX2. Shop high-quality, durable alternators.

JMC 3701100BBB1 ALTERNATOR from www.alibaba.com

$116.00Out of stock(34)

People also ask

What does b mean on an alternator?

What is second positive terminal on alternator used for? : r ...

The "B" terminal on an alternator, often labeled B+, is the main battery positive terminal. It's the large output that carries the electricity generated by the alternator to the vehicle's battery and the rest of the electrical system. Other common terminals include the "S" or "M" terminal for voltage sensing and the "L" or "D+" terminal for the warning light.

This video explains the function of the B+ terminal on an alternator:

Battery Positive.
B or B+: This is the primary output for charging the battery and powering the vehicle.
Voltage Sensing.
S or M: This terminal provides a direct reading of the battery's voltage to the voltage regulator, allowing it to adjust the alternator's output for optimal charging.
Warning Light.
L or D+: This terminal connects to the dashboard's charge indicator light. The light is on when the engine is off (as the alternator is not producing power) and turns off once the alternator starts charging the battery.
Ignition.
IG or 15: This terminal connects to the ignition switch and provides the power needed to turn on the alternator's voltage regulator.
Tachometer.
W: Some alternators use this terminal to provide a signal for the tachometer (tach) that measures engine speed.

Ground connection:
The alternator's negative (B-) connection is often made through its casing to the engine block or chassis, rather than a separate wire.
Wiring:
The thick cable connected to the B+ terminal is the main power feed and is crucial for the alternator to function correctly. Ensure it is securely connected and free from corrosion.
Disconnection:
Never disconnect the B+ terminal while the engine is running, as this can cause a voltage spike that may damage the alternator's diodes.

Alternator negative connection - Boat Equipment - Canal World

Apr 28, 2013 — There is no point electrically in doing anything but connecting B- to the battery -ve. Any other option WILL introduce...

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Alternator wires - Boat Equipment - Canal World

Jul 9, 2007 — Posted July 9, 2007. mayalld said: An alternator needs 3 connections. The negative (B-) is almost invariably supplied v...

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Alternator terminal B+ access - RennTech.org

Jul 17, 2013 — I measured everything only when engine is running because I don't have a helper to help me crank. Actually just realiz...

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The Components of an Alternator - Auto | HowStuffWorks

S terminal: Senses battery voltage. IG terminal: Ignition switch that turns the voltage regulator on. L terminal: Closes the circu...

HowStuffWorks

TA-026: Alternator Short Circuit B+ Terminal

Aug 28, 2020 — so what could be the cause. well these vehicles may exhibit a short circuit in the alternator due to an protected B po...

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Alternator energizing problem

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B+: This is the main output terminal of the alternator. It's a large stud or

Feb 5, 2025 — Labeled Parts and Their Functions: 1. Voltage Regulator: • This component controls the voltage output of the alternator...

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Alternator terminals: B, S, IG, L explained - Facebook

Jul 11, 2023 — What are the 4 terminals on an alternator? Alternators usually have four terminals marked with letters. The "B" termin...

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How do I find my alternator part number?

The part number is typically on a sticker or tag on the side of the alternator housing. You may also find it stamped into the metal housing or on a tag on the rear cover. Sometimes you may need to clean the alternator to see the number, or even remove it to get a clear view.

Where to look

Side housing:
Look for a silver or rectangular sticker on the main body of the alternator. It's often placed facing outward for visibility.
Rear cover:
Some manufacturers place the identification tag on the rear cover of the unit.
Stamped metal:
The number might be directly stamped into the metal on the front frame or other parts of the housing.

Clean it first:
If the alternator is dirty, cleaning it may reveal a hidden sticker or stamp.
Take a photo:
Take a clear picture of the label and any other numbers you can see. This can be useful for cross-referencing with online parts catalogs or a local auto parts store.
Provide multiple numbers:
When ordering a new part, providing all the numbers from the old unit can help ensure you get the correct replacement.
Check the vehicle manual:
The owner's manual may have a section with parts and references that could help identify the correct alternator for your vehicle.

How To Test an Alternator and Check For Correct Part number

Dec 6, 2018 — so obviously anything under 13 new alternator anything sort of over. 15 um and get obviously an auto electrician to hav...

YouTube ·

Online Auto Parts

Locating the Part Number, Serial Number, and Secondary Labels on ...

To locate this label: Identify the alternator housing, which is the main body of the alternator. The rectangular silver label is u...

American Power Systems, Inc.

How to identify your alternator ? | Wagendass

In order to avoid a mistake when purchasing your alternator, you must find the original label affixed to it, which will provide yo...

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Part Number Search Help - Alternator & Starter Parts Wholesale

discussed Where can these unit part numbers be found? On alternators this number can be found stamped on one of the sides of the f...

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How do you identify an alternator? : r/Cartalk - Reddit

May 11, 2025 — Usually there is a sticker or tag with info. Maybe try taking a picture and showing it to AI and see if it can identif...

How to identify your Starter Motor or Alternator?

Mar 14, 2022 — Check Handbook or Vehicle owner's manual If you have access to the vehicle handbook or vehicle owner's manual, then th...

StarterMotorAlternator.com

What are the symptoms of a bad alternator?

Symptoms of a bad alternator include a battery warning light, dim/flickering lights, slow or dead battery, strange noises (whining/grinding), burning smells, and electrical issues like slow power windows or radio problems, often leading to engine stalling or difficulty starting because the alternator isn't charging the battery.

Common Signs & Symptoms

Dashboard Warning: A battery-shaped or "ALT" light illuminates.
Lighting Problems: Dimming, flickering headlights or interior lights.
Battery Issues: Frequent dead batteries or a battery that dies shortly after charging.
Unusual Noises: Whining, growling, or grinding sounds from the engine area.
Burning Smell: A smell of burning rubber or hot wires.
Electrical Gremlins: Power windows, radio, or other accessories work slowly or erratically.
Stalling/Starting Difficulty: The engine stalls frequently or is hard to start.

The Best Way To Test An Alternator! | ChrisFix
Jul 28, 2025 — today I'm going to show you how to test your alternator to make sure it's working right some symptoms you might have w...
Facebook ·
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6 Symptoms of a Bad Alternator!
Nov 12, 2023 — at number one again this shows how much the battery. and the alternator tie together and how it can sometimes be a lit...
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What are the signs of a bad car alternator?
Oct 24, 2023
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10 Bad Alternator Symptoms to Watch, Listen and Smell For
Contents * Warning Light. * Dim Lights. * Flickering Lights. * A Dead Battery. * Broken or Loose Connections. * Bad Belts. * Stra...
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Is It My Alternator or My Battery? Common Problems Answered
May 1, 2024 — Signs of an Alternator Problem If your alternator is failing, then the battery may not have enough charge to start the ...
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Signs of a Failing Alternator & When to Get It Checked - Burt Brothers
Here are the most common symptoms: Dim or flickering headlights – If your lights get dim when you rev the engine or flicker random...
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How to Tell if Battery, Alternator, or Starter is Bad | Tires Plus
Apr 19, 2023 — Signs of a Bad Alternator So if your alternator is on its way out, watch for these symptoms while your vehicle is runn...
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7 Signs of a Bad Alternator - Dobbs Tire & Auto Centers
7 Signs of a Failing Alternator * Difficulty starting. * Rough running. * Degrading performance of electrical components. * A gro...
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Signs Your Alternator May Be Going Bad - AutoZone
Signs Your Alternator May Be Going Bad * Dim Lights. * Battery Warning Light Comes On. * Worn or Broken Belt. * Unexpected Noises...
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Signs of a faulty alternator and replacement costs - RAC
Nov 10, 2025 — Signs of a broken alternator The most obvious indicator of an alternator issue is a dashboard warning light. This is o...
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How Do I Know If My Alternator Is Failing? - Ripley's Total Car Care
May 30, 2025 — Warning Signs Your Alternator May Be Going Bad * Dim or Flickering Lights. One of the first signs of a weak alternato...
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Five Signs Your Alternator Is Bad - Heath's Auto Service - Flagstaff, AZ
Mar 3, 2020 — A bad alternator can cause dimmed interior lights. The alternator powers the electrical components in your vehicle, inc...
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Nov 16, 2017 — Some other symptoms of a failing alternator include: * Rapid clicks when you try the ignition key * Dashboard icons li...
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Jul 6, 2023 — Other signs of a failing alternator include: * Warning lights on the dashboard * Unusual noises, such as grinding, whin...
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The Best Way To Test An Alternator! | ChrisFix

Jul 28, 2025 — today I'm going to show you how to test your alternator to make sure it's working right some symptoms you might have w...

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Nov 12, 2023 — at number one again this shows how much the battery. and the alternator tie together and how it can sometimes be a lit...

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What are the signs of a bad car alternator?

Oct 24, 2023

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Contents * Warning Light. * Dim Lights. * Flickering Lights. * A Dead Battery. * Broken or Loose Connections. * Bad Belts. * Stra...

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May 1, 2024 — Signs of an Alternator Problem If your alternator is failing, then the battery may not have enough charge to start the ...

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Signs of a Failing Alternator & When to Get It Checked - Burt Brothers

Here are the most common symptoms: Dim or flickering headlights – If your lights get dim when you rev the engine or flicker random...

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Apr 19, 2023 — Signs of a Bad Alternator So if your alternator is on its way out, watch for these symptoms while your vehicle is runn...

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7 Signs of a Bad Alternator - Dobbs Tire & Auto Centers

7 Signs of a Failing Alternator * Difficulty starting. * Rough running. * Degrading performance of electrical components. * A gro...

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Signs Your Alternator May Be Going Bad - AutoZone

Signs Your Alternator May Be Going Bad * Dim Lights. * Battery Warning Light Comes On. * Worn or Broken Belt. * Unexpected Noises...

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Signs of a faulty alternator and replacement costs - RAC

Nov 10, 2025 — Signs of a broken alternator The most obvious indicator of an alternator issue is a dashboard warning light. This is o...

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How Do I Know If My Alternator Is Failing? - Ripley's Total Car Care

May 30, 2025 — Warning Signs Your Alternator May Be Going Bad * Dim or Flickering Lights. One of the first signs of a weak alternato...

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Five Signs Your Alternator Is Bad - Heath's Auto Service - Flagstaff, AZ

Mar 3, 2020 — A bad alternator can cause dimmed interior lights. The alternator powers the electrical components in your vehicle, inc...

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Nov 16, 2017 — Some other symptoms of a failing alternator include: * Rapid clicks when you try the ignition key * Dashboard icons li...

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Jul 6, 2023 — Other signs of a failing alternator include: * Warning lights on the dashboard * Unusual noises, such as grinding, whin...

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PASOU 3701100BBB1/JFZB1808-021 Alternator Generator ...

AliExpress

https://www.aliexpress.com › item

AliExpress

https://www.aliexpress.com › item

PASOU 3701100BBB1/JFZB1808-021 Alternator Generator Assembly for ISUZU NKR55 JMC 1030 4JB1 diesel Engine. US $158.62. Tax excluded, add at checkout if ...

jmc 3701100bbb1 alternator asm ( nett ) 90a

Listen-Autoparts.com

https://www.listen-autoparts.com › jmc-3701100bbb1-a...

Listen-Autoparts.com

https://www.listen-autoparts.com › jmc-3701100bbb1-a...

JMC 3701100BBB1 ALTERNATOR ASM ( NETT ) 90A ; Brand · JMC ; Part No. · 3701100BBB1 ; Weight · 7.14KG ; Application · Light duty truck

PASOU 3701100BBB1/JFZB1808-021 Alternator Generator ...

pasou-parts.com

https://www.pasou-parts.com › NKR/NHR

pasou-parts.com

https://www.pasou-parts.com › NKR/NHR

PASOU 3701100BBB1/JFZB1808-021 Alternator Generator Assembly for ISUZU NKR55 JMC 1030 4JB1 diesel Engine ; Product Name：Generator ; Type：Alternator Assembly ...

3701100BBB1 / JFZB1808-021 Auto Part Alternator ...

Guangdong Huimen Industrial Co., Ltd.

https://www.trucksspare-parts.com › sale-42583799-37...

Guangdong Huimen Industrial Co., Ltd.

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3701100BBB1 / JFZB1808-021 Auto Part Alternator Assembly For JMC ; Material: Aluminum Cover ,copper Wire ; Warranty: 6 Months ; Packaging Details: Neutral Packing, ...

JMC 3701100BBB1 ALTERNATOR from www.trucksspare-parts.com

12V 60A Auto Alternator for Beiqi Futian 486 Jmc 1032 ...

Made-in-China.com

https://m.made-in-china.com › ... › Car Alternator

Made-in-China.com

https://m.made-in-china.com › ... › Car Alternator

Jan 4, 2024 — 12V 60A Auto Alternator for Beiqi Futian 486 Jmc 1032 Foton Jfzb1100 3701100bbb1 3701010ax2. US$58.002-10 Pieces. US$54.0011-30 Pieces.

JMC 3701100BBB1 ALTERNATOR from m.made-in-china.com

$50.00In stockReview by MIC_BUYERFree delivery

MAMUR Alternator 3701100SAW 3701100BBB1 Generator

Guangzhou Manma Auto Parts Co. , Ltd.

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Guangzhou Manma Auto Parts Co. , Ltd.

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JX493ZQ4A Engine Alternator 3701100BBB1 for N396 ...

Alibaba.com

https://www.alibaba.com › ... › Car Alternator

Alibaba.com

https://www.alibaba.com › ... › Car Alternator

JX493ZQ4A engine alternator 3701100BBB1 for N396 JX1021DF pickup. New, 2012-, 2.4, 2.8 TD, 4x4. OEM No: 3701100BBB1. DHL/UPS/FedEx delivery in 7 days.

MAMUR Alternator for JMC OEM No.: 3701100SAW ...

Facebook · MAMUR-isuzu,jmc,toyota.lexus,japanese auto part

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Facebook · MAMUR-isuzu,jmc,toyota.lexus,japanese auto part

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MAMUR Alternator for JMC OEM No.: 3701100SAW 3701100BBB1 Applicable Model: JMC 1030 1040 1050 1060 1031 1041 1051 1061 1042 1062 1032 1043 ...

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MAMUR Alternator for JMC OEM No.: 3701100SAW/3701100BBB1 Applicable Model: JMC 1030 1040 1050 1060 1031 1041 1051 1061 1042 1062 1032 1043 1052

JMC 3701100BBB1 ALTERNATOR from www.mamur-hk.com

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