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Shop By Brand

The Following brands are available based on your search.

  • BBB Industries
    BBB Industries
  • Bosch
    Bosch
  • Denso
    Denso
  • Hitachi
    Hitachi
  • Remy
    Remy
  • TYC
    TYC
  • TYC Products
    TYC Products
  • Valeo
    Valeo
  • WAI Global
    WAI Global

Best Selling Genuine Nissan Alternators

  • We Stock the following top leading brands, including Bosch, Denso, Hitachi, TYC, Valeo
  • Constantly Updated Inventory of Nissan Replacement Alternator Parts

We stock Alternator parts for most Nissan models, including 300ZX, 350Z, 370Z, Altima, Armada, D21, Frontier, Maxima, Murano, Pathfinder, Pickup, Quest, Rogue, Sentra, Titan, Versa, Versa Note, Xterra.

Bosch
2007 Nissan Murano Alternator 6 Cyl 3.5L Bosch - Alternator (Remanufactured)

P311-0E43063    AL2389X  Remanufactured

231005Y700 , 231002Y900 , 2310M0L706 , 2310031U01

Qty:
$60.00 $109.05
Bosch Alternator
  • Bosch Premium 100% Remanufactured Alternator
  • Alternator (Remanufactured)
  • Product Attributes:
    • Amperage Rating: 110
    • Case Color: Aluminum
    • Case Material: Aluminum
    • Fan Type: Internal
    • New Or Remanufacured: Remanufactured
    • Original Equipment Manufacturer Names: Hi
    • Packaging: Box
    • Plug Type: 306
    • Pulley Outside Diameter: 62
    • Pulley Type: 6s
    • Pulley Type / Belt Type (Alternator): 6s
    • Regulator Type: Internal
    • Rotation Direction: Clockwise
  • Bosch Premium Alternators are designed, built and tested to provide the ultimate in performance and reliability
Brand: Bosch
Additional Fitment Information:
Vehicle Block Engine CID CC
2007 - Nissan Murano V 6 Cyl 3.5L - 3498
Bosch
1995 Nissan Maxima Alternator 6 Cyl 3.0L Bosch - Alternator (Remanufactured)

P311-0E43063    AL2389X  Remanufactured

231005Y700 , 231002Y900 , 2310M0L706 , 2310031U01

Qty:
$60.00 $109.05
Bosch Alternator
  • Bosch Premium 100% Remanufactured Alternator
  • 110 A
  • Alternator (Remanufactured)
  • Product Attributes:
    • Amperage Rating: 110
    • Case Color: Aluminum
    • Case Material: Aluminum
    • Fan Type: Internal
    • New Or Remanufacured: Remanufactured
    • Original Equipment Manufacturer Names: Hi
    • Packaging: Box
    • Plug Type: 306
    • Pulley Outside Diameter: 62
    • Pulley Type: 6s
    • Pulley Type / Belt Type (Alternator): 6s
    • Regulator Type: Internal
    • Rotation Direction: Clockwise
  • Bosch Premium Alternators are designed, built and tested to provide the ultimate in performance and reliability
Brand: Bosch
Additional Fitment Information:
Vehicle Block Engine CID CC
1995 - Nissan Maxima V 6 Cyl 3.0L 182 2988
Bosch
1996 Nissan Maxima Alternator 6 Cyl 3.0L Bosch - Alternator (Remanufactured)

P311-0E43063    AL2389X  Remanufactured

231005Y700 , 231002Y900 , 2310M0L706 , 2310031U01

Qty:
$60.00 $109.05
Bosch Alternator
  • Bosch Premium 100% Remanufactured Alternator
  • with California Emissions 110 A
  • Alternator (Remanufactured)
  • Product Attributes:
    • Amperage Rating: 110
    • Case Color: Aluminum
    • Case Material: Aluminum
    • Fan Type: Internal
    • New Or Remanufacured: Remanufactured
    • Original Equipment Manufacturer Names: Hi
    • Packaging: Box
    • Plug Type: 306
    • Pulley Outside Diameter: 62
    • Pulley Type: 6s
    • Pulley Type / Belt Type (Alternator): 6s
    • Regulator Type: Internal
    • Rotation Direction: Clockwise
  • Bosch Premium Alternators are designed, built and tested to provide the ultimate in performance and reliability
Brand: Bosch
Additional Fitment Information:
Vehicle Block Engine CID CC
1996 - Nissan Maxima V 6 Cyl 3.0L 182 2988
Denso
2001 Nissan Altima Alternator 4 Cyl 2.4L Denso - Reman Alternator

P311-38A7DC4    210-3146  Remanufactured

138988 , HOA104 , 12003 , 1860837 , 1860874 , AL2376X , DAA313 , N13760 , 1N-8988 , A13760 , 90-25-1124 , 13-8988 , A2760 , SUA173 , 13901 , 213-8988 , 23100-0Z400 , DAA105 , 3341312 , 23100-9E000 , 13760 , LR1100-709C

Qty:
$68.00 $211.26
Denso Alternator
  • Remanufactured DENSO First Time Fit Alternator
  • 100 Amp OE Equivalent
  • Reman Alternator
  • Product Attributes:
    • Amperage Rating: 100
    • Family: Hitachi Oe
    • Fan Type: Internal
    • Plug Type: 300
    • Regulator Type: Internal
    • Rotation Direction: Clockwise
    • Voltage: 12.0
  • DENSO alternators are not only original equipment on many of the world's top production cars; they are a favorite in motorsports as well, where their light weight, high efficiency, and durability under the most demanding conditions make them the natural choice. Remanufactured DENSO alternators go through a grueling process. Stators and rectifiers are tested to 300 volts, while rotors are submitted to 600 volts, all to ensure reliable performance. Rotor slip rings are buffed to an 8 micron surface finish, with runout limited to 20 microns, minimizing brush wear and abrasion. Bearings are validated to OE standards and loaded with premium OE standard lubricants. New or remanufactured, a DENSO alternator is a quality component. Offered in versions from 40 to 160 amperes and beyond for hundreds of specific vehicle applications, all alternators meet DENSO's rigorous First Time Fit standards. Contemporary cars employ dozens of sophisticated electronic systems from bumper to bumper, placing heavy demands on the charging system. The alternator is no place to cut corners. DENSO First Time Fit alternators meet or exceed all manufacturer standards, mount properly with a minimum of installation issues, and provide years of reliable service. Features. Premium cores and precise OE assembly benchmarks; Design to meet the grueling heat and electrical requirements; First Time Fit provides perfect mounting with no belt/pulley alignment issues; Benefits. Service professionals preferred DENSO's alternators for a trouble free solution; OE quality fit, appearance, and durability; Full compatibility with sensitive electronics systems; Compact and lightweight design
Brand: Denso
Additional Fitment Information:
Vehicle Engine Designation Block Engine CID CC
2001 - Nissan Altima KA24DE L 4 Cyl 2.4L - 2389
Denso
2004 Nissan Altima Alternator 4 Cyl 2.5L Denso - Reman Alternator

P311-22B2A77    210-3148  Remanufactured

LR1100-734C , 12365 , 213-9703 , N13939 , A13939 , A2939 , 334-1464 , 2-13939 , LR1100-734B , 13939 , 13-9703 , 1861025 , DAA124 , 23100-8J000 , AL2402X , 90-25-1158 , 13-9528 , 94117 , 213-9528 , LR1100-734

Qty:
$68.00 $151.57
Denso Alternator
  • Remanufactured DENSO First Time Fit Alternator
  • 100 Amp; To 01/2004 OE Equivalent
  • Reman Alternator
  • Product Attributes:
    • Amperage Rating: 100
    • Family: Hitachi Oe
    • Fan Type: Internal
    • Plug Type: 300
    • Regulator Type: Internal
    • Rotation Direction: Clockwise
    • Voltage: 12.0
  • DENSO alternators are not only original equipment on many of the world's top production cars; they are a favorite in motorsports as well, where their light weight, high efficiency, and durability under the most demanding conditions make them the natural choice. Remanufactured DENSO alternators go through a grueling process. Stators and rectifiers are tested to 300 volts, while rotors are submitted to 600 volts, all to ensure reliable performance. Rotor slip rings are buffed to an 8 micron surface finish, with runout limited to 20 microns, minimizing brush wear and abrasion. Bearings are validated to OE standards and loaded with premium OE standard lubricants. New or remanufactured, a DENSO alternator is a quality component. Offered in versions from 40 to 160 amperes and beyond for hundreds of specific vehicle applications, all alternators meet DENSO's rigorous First Time Fit standards. Contemporary cars employ dozens of sophisticated electronic systems from bumper to bumper, placing heavy demands on the charging system. The alternator is no place to cut corners. DENSO First Time Fit alternators meet or exceed all manufacturer standards, mount properly with a minimum of installation issues, and provide years of reliable service. Features. Premium cores and precise OE assembly benchmarks; Design to meet the grueling heat and electrical requirements; First Time Fit provides perfect mounting with no belt/pulley alignment issues; Benefits. Service professionals preferred DENSO's alternators for a trouble free solution; OE quality fit, appearance, and durability; Full compatibility with sensitive electronics systems; Compact and lightweight design
Brand: Denso
Additional Fitment Information:
Vehicle Engine Designation Block Engine CID CC
2004 - Nissan Altima QR25DE L 4 Cyl 2.5L 152 2488
Denso
2001 Nissan Maxima Alternator 6 Cyl 3.0L Denso - Reman Alternator

P311-3B4F2F9    210-3105  Remanufactured

13-8986 , 13402 , 1N-8986 , 213-8986 , LR1110-709B , LR1110-709 , 1860773 , A2760 , 23100-0L701 , 334-2041 , DAA314 , AL2389X , 437683 , 13826 , 15938 , A2075 , 90-25-1075 , 3342041 , 3211721 , DAA314A , LR1110-709C , 13639 , N13826 , LR1110-709BR , 12245 , A13826

Qty:
$68.00 $382.10
Denso Alternator
  • Remanufactured DENSO First Time Fit Alternator
  • 110 Amp OE Equivalent
  • Reman Alternator
  • Product Attributes:
    • Amperage Rating: 110
    • Family: Hitachi Oe
    • Fan Type: Internal
    • Plug Type: 306
    • Rotation Direction: Clockwise
    • Voltage: 12.0
  • DENSO alternators are not only original equipment on many of the world's top production cars; they are a favorite in motorsports as well, where their light weight, high efficiency, and durability under the most demanding conditions make them the natural choice. Remanufactured DENSO alternators go through a grueling process. Stators and rectifiers are tested to 300 volts, while rotors are submitted to 600 volts, all to ensure reliable performance. Rotor slip rings are buffed to an 8 micron surface finish, with runout limited to 20 microns, minimizing brush wear and abrasion. Bearings are validated to OE standards and loaded with premium OE standard lubricants. New or remanufactured, a DENSO alternator is a quality component. Offered in versions from 40 to 160 amperes and beyond for hundreds of specific vehicle applications, all alternators meet DENSO's rigorous First Time Fit standards. Contemporary cars employ dozens of sophisticated electronic systems from bumper to bumper, placing heavy demands on the charging system. The alternator is no place to cut corners. DENSO First Time Fit alternators meet or exceed all manufacturer standards, mount properly with a minimum of installation issues, and provide years of reliable service. Features. Premium cores and precise OE assembly benchmarks; Design to meet the grueling heat and electrical requirements; First Time Fit provides perfect mounting with no belt/pulley alignment issues; Benefits. Service professionals preferred DENSO's alternators for a trouble free solution; OE quality fit, appearance, and durability; Full compatibility with sensitive electronics systems; Compact and lightweight design
Brand: Denso
Additional Fitment Information:
Vehicle Engine Designation Block Engine CID CC
2001 - Nissan Maxima VQ30DE V 6 Cyl 3.0L 182 2988
Denso
2005 Nissan Sentra Alternator 4 Cyl 2.5L Denso - Reman Alternator

P311-22B2A77    210-3148  Remanufactured

LR1100-734C , 12365 , 213-9703 , N13939 , A13939 , A2939 , 334-1464 , 2-13939 , LR1100-734B , 13939 , 13-9703 , 1861025 , DAA124 , 23100-8J000 , AL2402X , 90-25-1158 , 13-9528 , 94117 , 213-9528 , LR1100-734

Qty:
$68.00 $151.57
Denso Alternator
  • Remanufactured DENSO First Time Fit Alternator
  • 100 Amp OE Equivalent
  • Reman Alternator
  • Product Attributes:
    • Amperage Rating: 100
    • Family: Hitachi Oe
    • Fan Type: Internal
    • Plug Type: 300
    • Regulator Type: Internal
    • Rotation Direction: Clockwise
    • Voltage: 12.0
  • DENSO alternators are not only original equipment on many of the world's top production cars; they are a favorite in motorsports as well, where their light weight, high efficiency, and durability under the most demanding conditions make them the natural choice. Remanufactured DENSO alternators go through a grueling process. Stators and rectifiers are tested to 300 volts, while rotors are submitted to 600 volts, all to ensure reliable performance. Rotor slip rings are buffed to an 8 micron surface finish, with runout limited to 20 microns, minimizing brush wear and abrasion. Bearings are validated to OE standards and loaded with premium OE standard lubricants. New or remanufactured, a DENSO alternator is a quality component. Offered in versions from 40 to 160 amperes and beyond for hundreds of specific vehicle applications, all alternators meet DENSO's rigorous First Time Fit standards. Contemporary cars employ dozens of sophisticated electronic systems from bumper to bumper, placing heavy demands on the charging system. The alternator is no place to cut corners. DENSO First Time Fit alternators meet or exceed all manufacturer standards, mount properly with a minimum of installation issues, and provide years of reliable service. Features. Premium cores and precise OE assembly benchmarks; Design to meet the grueling heat and electrical requirements; First Time Fit provides perfect mounting with no belt/pulley alignment issues; Benefits. Service professionals preferred DENSO's alternators for a trouble free solution; OE quality fit, appearance, and durability; Full compatibility with sensitive electronics systems; Compact and lightweight design
Brand: Denso
Additional Fitment Information:
Vehicle Engine Designation Block Engine CID CC
2005 - Nissan Sentra QR25DE L 4 Cyl 2.5L 152 2488
Hitachi
2000 Nissan Maxima Alternator Hitachi - 110 Amp

P311-2C2471C    W0133-2218545  New

Qty:
$317.00
Hitachi Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • OE Replacement - Reman
  • Production: 04/1999-
  • 110 Amp
Brand: Hitachi
Additional Fitment Information:
Vehicle Prod. Date Range
2000 - Nissan Maxima Fr:04-00-99
Hitachi
2000 Nissan Maxima Alternator Hitachi - 110 Amp

P311-2C2471C    W0133-2218545  New

Qty:
$317.00
Hitachi Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • OE Replacement - Reman
  • Production: 04/1999-
  • 110 Amp
Brand: Hitachi
Additional Fitment Information:
Vehicle Prod. Date Range
2000 - Nissan Maxima Fr:04-00-99
Hitachi
2001 Nissan Maxima Alternator Hitachi - 110 Amp

P311-2C2471C    W0133-2218545  New

Qty:
$317.00
Hitachi Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • OE Replacement - Reman
  • Production: -06/2001
  • 110 Amp
Brand: Hitachi
Additional Fitment Information:
Vehicle Prod. Date Range
2001 - Nissan Maxima To:06-00-01
Hitachi
2001 Nissan Maxima Alternator Hitachi - 110 Amp

P311-2C2471C    W0133-2218545  New

Qty:
$317.00
Hitachi Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • OE Replacement - Reman
  • Production: -06/2001
  • 110 Amp
Brand: Hitachi
Additional Fitment Information:
Vehicle Prod. Date Range
2001 - Nissan Maxima To:06-00-01
TYC
2002 Nissan Sentra Alternator 4 Cyl 1.8L TYC

P311-3DE45D3    W0133-2279737  New

Qty:
$371.80
TYC Alternator
  • 100% New
  • Production: 08/2001-
Brand: TYC
Additional Fitment Information:
Vehicle Block Engine CID CC Prod. Date Range
2002 - Nissan Sentra L 4 Cyl 1.8L - 1769 Fr:08-00-01
TYC
2005 Nissan Sentra Alternator 4 Cyl 1.8L TYC

P311-3DE45D3    W0133-2279737  New

Qty:
$371.80
TYC Alternator
  • 100% New
Brand: TYC
Additional Fitment Information:
Vehicle Block Engine CID CC
2005 - Nissan Sentra L 4 Cyl 1.8L - 1769
TYC
2006 Nissan Sentra Alternator 4 Cyl 1.8L TYC

P311-3DE45D3    W0133-2279737  New

Qty:
$371.80
TYC Alternator
  • 100% New
  • Production: -08/31/2006
Brand: TYC
Additional Fitment Information:
Vehicle Block Engine CID CC Prod. Date Range
2006 - Nissan Sentra L 4 Cyl 1.8L - 1769 To:08-31-06
Valeo
2017 Nissan Rogue Alternator 4 Cyl 2.5L Valeo

P311-4A637CD    W0133-2001323  New

Qty:
$455.01
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • OE Replacement - 100% New
Brand: Valeo
Additional Fitment Information:
Vehicle Block Engine CID CC
2017 - Nissan Rogue L 4 Cyl 2.5L 152 2488
Valeo
2019 Nissan Rogue Alternator 4 Cyl 2.5L Valeo

P311-4A637CD    W0133-2001323  New

Qty:
$455.01
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • OE Replacement - 100% New
  • Japan Built
Brand: Valeo
Additional Fitment Information:
Vehicle Block Engine CID CC
2019 - Nissan Rogue L 4 Cyl 2.5L 152 2488
Valeo
2019 Nissan Rogue Alternator 4 Cyl 2.5L Valeo

P311-4A637CD    W0133-2001323  New

Qty:
$455.01
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • OE Replacement - 100% New
  • Korea Built Vehicle
Brand: Valeo
Additional Fitment Information:
Vehicle Block Engine CID CC
2019 - Nissan Rogue L 4 Cyl 2.5L 152 2488
Valeo
2019 Nissan Rogue Alternator 4 Cyl 2.5L Valeo

P311-4A637CD    W0133-2001323  New

Qty:
$455.01
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • OE Replacement - 100% New
  • USA Built
Brand: Valeo
Additional Fitment Information:
Vehicle Block Engine CID CC
2019 - Nissan Rogue L 4 Cyl 2.5L 152 2488
Valeo
2004 Nissan Quest Alternator Valeo

P311-36E150B    W0133-2042338  New

Qty:
$389.82
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • OE Replacement - 100% New
  • Production: 05/2003-
Brand: Valeo
Additional Fitment Information:
Vehicle Prod. Date Range
2004 - Nissan Quest Fr:05-00-03
Valeo
2009 Nissan Quest Alternator Valeo

P311-36E150B    W0133-2042338  New

Qty:
$389.82
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • OE Replacement - 100% New
Brand: Valeo
Additional Fitment Information:
Vehicle
2009 - Nissan Quest

Latest Nissan Repair and Alternator Installation Advice

CarJunky AutoAdvice

Nissan alternator

Showing 3 out of 3 Posts
Question From dcourtney2006 on Nissan alternator

I am trying to replace my alternator on my 1995 Nissan Sentra. I got the bolts holding the alternator out and alternator slides back and forth. But, I can not get the belt off. It loosens when I slide alternator back and forth but will not come off. Can someone HELP???

Response From way2old

There is a belt tensioner bolt that needs to be loosened. I don't have access to post a picture, but if you look, you should be able to see where it is.

Response From dcourtney2006 Top Rated Answer

I found it and just loosened it a bit and the belt came off. I found the nut in the middle of the wheel that the belt ran around. Thank You a ton.

nissan cd20 alternator

Showing 3 out of 3 Posts
Question From stijnw on nissan cd20 alternator

hi,

i'm working on a old nissan engine(cd20) from a sunny,
i found a component outside of the alternator,
but i don't know for what reason it's there...



can someone help me with this ?

Response From Hammer Time

That's just a capacitor that is used as a noise filter for the radio. It filters alternator noise in your AM radio reception.

Response From stijnw Top Rated Answer

ah ok thx :D

Nissan Altima Electrical Problems

Showing 2 out of 3 Posts | Show 1 Hidden Posts
Question From jmensch80 on Nissan Altima Electrical Problems

I have a 2000 Nissan Altima GXE and I just replace the alternator with a brand new one. After replacing it, the only thing that works is the headlights and radio. None of the other electrical accessories are working. It starts just fine but I have to feather the gas for a few seconds to keep it running and then it runs just fine. While removing the old alternator I got a spark from the terminal on the alternator which I realized i should have disconnected the battery, so I did. That lead me to believe that a fuse could have been blown but after checking them all, including the ones by the battery; they all looked fine. Any suggestions?

Response From Discretesignals Top Rated Answer

Did everything work before you replaced the alternator?

Response From jmensch80

Yep everything worked just fine.

Nissan Maxima 97 Repair Part

Showing 4 out of 9 Posts | Show 5 Hidden Posts
Question From juan99 on Nissan Maxima 97 Repair Part

hello, i have a 97 nissan maxima and i took it to a mechanic who says that i should replace a part, the part reference number is 23710-47u13 , the problem is that i cant find it anywhere, so i was wondering if there is any alternative reference number to this part?( i have noticed that many parts have alternate reference numbers).
Thanks for any help.

Response From Discretesignals

That is part number for an engine control module. You can only get those dealer, salvage yard, or have them sent out and repaired.

Response From juan99

ok, so maybe ill have to buy the whole computer module?
thanks for your reply!!!

Response From Discretesignals

Your mechanic should know the answer to that question.

Response From juan99

he doesnt, he keeps asking for the reference number i gave here, but nobody sells that part, so i talked to him to find out the computer module reference number so i can buy it and he gave me the same number.

Response From Discretesignals

I really don't think the aftermarket is going to sell that engine controller. That controller is either going to have to come from the dealer, a salvaged vehicle, or the controller that you have it going to have to be sent out for repair.

I'm surprised your mechanic is having you source the part. Does this mechanic work at or own a licensed repair shop that you took your vehicle to?

Response From Hammer Time

Sure he does...........

He's got a lift and everything


Response From Discretesignals Top Rated Answer

Looks like he is doing a 4 wheel alignment.

Response From nickwarner

But he does have a nicer view than the rest of us. Welcome to Darwin Award Repair!

1996 nissan hard body wiring problems

Showing 2 out of 9 Posts | Show 7 Hidden Posts
Question From datsundave on 1996 nissan hard body wiring problems

i have a 1996 Nissan hard body d21 pickup that has a wiring problem that i cant find. during the day its fine but at night when the lights are on, the charge and brake light come on in the dash but alternator is still charging and battery is steady at 13.3 volts, also keeps blowing the driver side high beam out as well. any pointer or advise to solve my dilemma? I've checked all the connectors and fusible links and wiring from the alternator but im thinking its in the headlamp switch or its wiring system. 3rd new alternator ans 2nd new battery. and also curious as to why the brake light come on with the charge light in the dash?

Thanx! DD

Response From Hammer Time

It's probably some kind of issue with the dash cluster, probably a ground.

PS, Please don't create duplicate questions. i have deleted your other one.

Response From datsundave

would the cluster also make all the lights go bright and dim with the intermittent charge light? it actually blew the dome light out as i sat with the truck running and the door open. it would have been the map light but it got real bright and i shut it off.

Response From Hammer Time

That's contrary to what you stated in your question.
You stated " but alternator is still charging and battery is steady at 13.3 volts,".
The only thing that can make a bulb get brighter and blow out is higher voltage and you say that didn't happen so which is it?

Response From datsundave

sorry! had a bit of rectal cranial inversion! i had forgot to mention that in the first msg. when the charge light is off it spikes in voltage, dont know how much it spikes, i was unable to test it before the truck started going haywire with the lights. but i did notice that it only does this with the headlights on. thats why i was thinking it was something in that system thats causing a malfunction. ive checked all the conectors but havent ohm tested that harness yet. wanted a better target to focus on to solve the problem without having to take it to someone. truthfully id like to set fire to the whole thing and make smores over the flames but i gotta drive it! oh i might wanna add that this truck ran a 120 mile paper route in the rural areas of phoenix for 2 years and has gotten its but kicked, dont know if that means anything, but every bit of info counts! sorry for the lack of info before

thanx!
double d

Response From Hammer Time

That was pretty important info to leave out. The only things that can cause a spike like that are a bad voltage regulator or grounded field wire. The regulator is built into the alternator.

Response From datsundave

the field wire being the one that goes to the light on the dash?

Response From Hammer Time Top Rated Answer

No, that's internal to the alternator on yours.

Response From datsundave

OK, thanks a lot for your time and understanding. im gonna try that and see what happens.