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Brand New, Never Installed, Mechman G Series 270a Alternator, random p


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I have a Brand New, never installed, Mechman G Series 270a Alternator for the NNBS trucks. This fits many vehicles and motors including, but not limited to the 4.3l, 4.8l, 5.3l, 6.0l, 6.2l and 6.6l Duramax. This is for the 2 pin wiring harness only, not the 4 pin wire harness. I am just now getting around to posting everything back up for sale which I am posting for sale on other GM Truck message boards.

 

I would use this, but I no longer have my 2008 GMC Sierra SLE2 CC 5.3l Z82 Sport.

 

I found my invoice and see that I bought this for $514. I can provide the invoice. One just sold for $458 +
Shipping on EBay a few weeks ago.

 

I am asking $430 + Actual Shipping via FedEx insured. I have
a FedEx Account so I get a shipping discount and will pass those savings on to
you.

 

 

It has an Underdrive Pulley so it creates its maximum amperage and has a great
amperage curve at such a low RPM.


175amps
@ Idle @ 750rpm (5.3l Motors Idle in between 600-800rpm)


225amps
@ 1000rpm (This is what a 5.3l motor will idle at 1000rpm for COLD for most of
the time till it heats up)

 

260amps- 265amps @ 1400-1500rpm @ Immediate Startup. (At first for several minutes,
the ECU will choke the 5.3l will idle @ 1400-1500rpm’s Cold Start.)

 

270amps @ 1750rpm’s.

 

So depending on what gearing you have in your rear end, we will assume that you have 3.73 gears as that is the
most popular rear end gear ratio. So while cruising on the highway at 65mph, you are turning at roughly 1,500RPM’s, right? I forgot as I now have a Nissan Armada and even though it has 3.73 gear ratio also, at 65mph, my truck turns at
1800RPM due to the 5th Gear Ratio and that I have much larger tires than a Sierra and what came with my Armada; which are 325/60/18’s (33.44” Tires.) So at cruising speed, you will already be past the point where you are
turning the amount of RPM’s to achieve the full 270a. Like I said above, at idle, you are at 175amps compared to only roughly 80a @ idle with the stock Optional AC Delco DR44 145a alternator that comes with the Towing Package on
the 5.3l, 6.0l and the 6.2l gas engines. To achieve the full output of 270amps, there is only a 1000RPM difference. It takes significantly more to get the full output of your stock alternator since the Amperage to RPM Curve is so steep.
See the curve graph below.


It has its factory warranty as I purchased it from an authorized dealer straight through Mechman.

 

 

PRICE for BRAND NEW MECHMAN H.O. 270A ALTERNATOR: $430 + ACTUAL SHIPPING. Will be shipped out via FedEx with a discounted price since I have a FedEx Account.


G Series

 

The hugely popular G series of large case 3 phase alternators have
been tried and true for over 15 years. These units offer excellent low
RPM output, with 100,000 mile durability. The 270 amp versions of these
units utilize custom designed solid copper rectifier plates with 6 or
more press fit high amp diodes for outstanding durability in commercial
or recreational vehicles. These units utilize heavy duty regulators
and premium NTN bearings, and are available for a wide variety of
vehicles. Non-PCM controlled versions are compatible with the
adjustable voltage boost module. (see Accessories for more details)


Note: Customers with smaller than 6” diameter crankshaft pulleys, or
narrower than 6 groove drive belts should use the 250 amp model for best
performance at idle and minimized belt slip.

 

 


·Testimonials

Well I have a 99 expedition 5.4 I can't believe the world of difference this
alt made on my truck the entire lighting system has improved my system sounds
more crisper bass is 3 times deeper lights don't dim at all I rate this product
100% on my chart only took 30 mins to install thanks Mechman great product.



Patrick Hopkins



I ordered this unit over a year ago and have had no issues with it. Added
the external adjustable voltage regulator and was even more satisfied with my
purchase. Made a few calls with some questions and customer service was always
on point. Will definitely remain loyal to Mechman.



Dustin Goldstrohm

 

 

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PRICE: $430 + With Free Shipping


Other Items for Sale:

 

  • AC Delco
    Optional Upgraded DR44 145a alternator

    that fits 4.3l, 4.8l, 5.3l, 6.0l, 6.2l, 6.6l Duramax and 8.1l motors It would
    fit as all of the Vortec motors essentially have the same mounts for the
    accessories.

 

  • AC Delco
    Professional Line Upgraded 48-6YR

    battery from my 2008 GMC Sierra 5.3l. My battery quit on me and I took it to
    the dealership and had them replace it. I had the option to upgrade to the AC
    Delco 48-6YR battery, for the price difference of $73.00 + $13.00 Labor and
    $8.50 in Tax for a total of $108.50 price difference, as it had more Cold
    Cranking Amps, Cranking Amps and more Amp Hours versus the battery that came
    with the truck that had the 24-6YR. 3 months after I got the battery, I
    replaced it with a Kinetic HC16V Car Audio Battery, so this battery hasn't seen
    much use. It's almost a brand new battery. It's a Group 34 Battery. It has a 30
    Month Warranty. I have the invoice and receipt so you can easily retain the warranty
    without having to look up the purchase price from Classic Buick GMC of
    Carrollton in Carrollton, TX. The warranty can be retained by any GM
    Dealership. I believe I have the invoice, if not, then they can look it up in
    the computer. This will fit many other vehicles, not just GM Trucks. I listed
    the dimensions below.

 

Copied
and Pasted from AC Delco's Website.

 

 

Model-----------Application----------AH/RC-----CCA------CA---- L---- W ------ H--------Lbs.----- Price

48-6YR-----12Volt Automotive----- 110--------615--------750---10.9--6.9--------7.5------35.5-----$164.95



 



The factory battery that came with my 2008 GMC Sierra was a 24-6YR

 

Model----------Application-------------RC---------CCA-------CA ----L------W-------H------Lbs. ---Price

24-6YR-----12Volt Automotive-------110--------600--------650-----10-----6.8-----8.8------39-----$91.95

Remember that I mentioned above, that I never got around to installing my stereo before
totaling my truck. My XS D3400 battery was in the truck when I rolled it, but
it came out fine. The engine compartment was fine.


  • 2007+ OEM Factory Radio from my 2008 SLE2 Sierra

  • 2 Used Infinity Kappa Perfect 10” VQ10 Subwoofers. I’m not into mainstream branded car audio such as I hate JL Audio, JBL,Kenwood, I hate Kicker, Rockford Fosgate, Sony, most Alpine, most MTX most Alpine, etc…... These are Mass Produced and Mass Marketed brands that spend more money on marketing than they do on the things I mentioned above likeoverpriced JL Audio, Kicker, etc... These things will slam, especially in a large box. They kept up with some of the double and triple priced mass marketed 12's out there. I guarantee you that you would be impressed at how loud and how well these sound. If you have them on a quality amplifier that actually puts out its rated RMS wattage power, say, 1000-1800wrms in a good size box, it will slam.

 

I like Audiophile Quality car audio… Brands that aren’t mass produced. These Infinity subs are the exception like
the Alpine Type R’s, MTX Audio 8500 and 9500 Series Subwoofers. Audiophile brands that spend more money in Research & Development, quality parts, mostly hand built, don't advertise, etc... such as Sundown Audio, Focal, Hertz, Digital Designs, RE Audio, Incriminator Audio, DC Audio, PSI Car Audio, TC Sounds, etc… Might be surprising that I have Audiopipe, but I bought their AP30001D 3000wrms amplifier that puts out 3000wrms @ 1 ohm (1500wrms x’s 2) or 2 ohm (3000wrmx x’s 1) and I was extremely surprised it did more than it’s rated power on the bench and the distortion rate was superb, so I ended up selling the AP30001D to get a little bit more power and get a pair of AP18001D 1800wrms each. So instead of each of my modified Sundown Audio SA-8 Stock SPL 8” Subs getting 750wrms each, they will be getting 920-950wrms each (920-950wrms x’s 4)

 

Anyway, back to the Infinity Subs. These subs surprised the hell out of me. They were insanely loud for being 10’s Everyone, who has been in my Armada, asked me what kind of 12’s I had in there. I told them they weren’t 12’s. They asked me what kind of 15 or 15’s I had. I told them what they were and they were shocked. I had them in a 4.8 cu ft Net box tuned to 32Hz. They get loud and get low, especially for 10’s. The SQ is exceptional also. I have been holding on to these subs for a while, but since I still haven’t installed my SA-8 V.2 modified Subs, I want to actually hear them for the first time. I’ve had them for a year now and still haven’t installed them. I have been putting my stereo install in my Armada for way too long. This was originally ran off of a 1500wrms amp, then bumped it up to an 1800wrms amp and it made a difference. I have had these subs for a while. like RE Audio (Resonant Engineering), Incriminator Audio, DC Audio, Sundown Audio, PSI Car Audio, TC Sounds, etc…


Price for Both Infinity Kappa Perfect VQ 10’s: $175 + Actual Shipping.

 

  • Also, I have a Phillips Dual Portable DVD LCD 7” Screens. These work as a portable DVD System or they have straps to strap them on the back of the headrest. My Armada already has a pair of Farenheight LCD Headrest Monitors, so I have no need for them, unless I want to strap them to my 2nd row Headrests for my 3rd Row passengers.

 

  • To Keep the Infinity line going, I also have a pair of used Infinity Kappa 4x6 2 way plate speakers. I forgot the model number, but it’s something like, Infinity Kappa 469.cpf or something like that.

Price: $50 + Actual Shipping

 

  • 3” Seat Lift Kit. I am taking new orders on a 3” Rear Seat Lift, made out of T6-6061 Aircraft Grade Aluminum which is EXTREMELY STRONG, to aid in more room underneath your seats for a larger displacement subwoofer box and to aid in the ability to install deeper mounting depth boxes. Before, I was only able to fit a sealed box that got me 1.66 cu. ft. GROSS. Just by adding 3” of seat lift, I was able to squeeze out over 5.0 cu. ft. GROSS / 3.0 cu. ft NET ported box with dual ports tuned to 31Hz and had my SA-8 V.2’s firing forward. So there was atleast 10” tall on the front of the box. I could have used 10’s or 12’s and not have to go with a shallow mount subwoofer.
    I could have easily fit a subwoofer with over 7” Mounting Depth and I built that ported box shorter than I could have since I moved the seats forward 3”. See above why it’s not only serves a purpose to slide your seats forward 3”,
    but it’s important in order to utilize the entire back wall to mount multiple amps, room for wiring, distribution blocks, DSP’s, Power Converter that I installed and Crossovers. It also gave the amplifiers room to breathe. So I will be making these out of Aircraft Grade T6-6061 Aluminum @ .25” thick. There will be 7 seat lift blocks total. 2 for the driver’s side, 2 for the middle, 2 for the passenger’s side and one for the seat belt. There is more information in the thread I created for the 3” Seat Lift Kit that I am taking orders for. These include an upgrade in Nuts and Bolts. Factory Nuts and Bolts are Grade 2. I’m not providing Grade 2, Grade 4 or even Grade 6. I’m providing super strong
    Grade 8, which is used on cranes, airplanes, helicopters and anything else you can imagine that is several tons to 100+ ton machines, tornado shelters, etc… Check the thread for the price in the For Sale Section.

 

Price: $150 + Actual Shipping with 7 custom fabricated and aircraft grade strong 3”/3”
seat lift blocks and Grade 8 Nuts and Grade 8 Nuts.


  • BRAND NEW JVC KW-NT800HDT. JVC's Flagship Model. I totaled my Sierra a month ago and JVC was kind enough to replace my entire unit even though I was involved in an accident. I have yet to get a new vehicle, so I have only hooked it up to my new XS D3400 AGM Car Audio battery in my bedroom to download the new firmware. Other than that, it has not been used. It comes with the cage with no bent tabs to show it has not been installed. If you are
    not familiar with the unit, you can go here to read all of the great features. This is JVC's Flagship Model, so it's their top of the line unit.

I was going to get the Pioneer AVIC-Z140BT, as I am a diehard Pioneer fan and have never owned anything but a Pioneer unit in
the 13 years I have been into car audio since the day I turned 16 and got my Driver's License. However, the guy at the car audio shop asked me a good question before buying it. How important is Live Traffic? I told him, very important in Dallas. He told me I would have to buy a separate external & expensive brain to get the Traffic for it. He told me that this is the same unit he has in his G37 and told me if I didn’t like it, I could bring it back. I never brought it back. So what I have for sale is a new

JVC-KW-NT800HDT straight from JVC that was replaced by them. It’s not refurbished. It's NEW. I took it out of the box as I said to take pictures and to upload the new firmware from the SD Card in the SD Card Slot when the motorized Screen folds down for the slot of the CD Player and below that is the SD Card Slot. This also allows for 9 different angle options of the screen to be changed to customize it if you are looking down at it it can be angled upwards or for a truck dash, it can be angled slightly downwards. In my Sierra, I used the +1 Setting. When the vehicle turns off or the Navigation unit turns off, it motorizes back to the flat position which is 0. Other than that, it's still in the box. I have yet to get a new truck yet. Comes with everything out of the box.


Price: $700 + Actual Shipping

 

  • I also have a USA Made, Planet Audio RXD1400 1400wrms amplifier @ 1 ohm. I believe it puts out 1000wrms @ 2 ohm and 800wrms at 4 ohm if I remember correctly.

 

Price: $80 + Actual Shipping

 

I WILL ALSO CONSIDER BUNDLING ITEMS FOR A DISCOUNT IF YOU PURCHASE 2 OR MORE ITEMS FROM ME.




It's been a rough past several months... I was buying everything collectively over the past several months and would’ve had everything purchased and installed by now except earlier this year, I was rushed to the hospital where I was hospitalized for 4 weeks and had to have major abdominal surgery which took me a couple of months to recover from. I then resumed purchasing everything, but never got a chance to install. I totaled the truck in a rollover accident in late August where I had just begun my installation process which included removal of my rear seats, installing the 3" rear lift, I fabricated (And I am taking new orders again so see my other thread for a 3” Seat Raise Kit) & I assembled together, installed my 40 section of my 40/60 rear seats,
sealed up the holes on the inner door panel with ¼” Wood in my rear doors, installed my Dynamat, painted and mounted my amp rack backplate, ran one of my 1/0awg OFC power wire, installed my rear Focal K2p Component Speakers without the Passive Crossovers and was in the process of running my second run of 1/0awg power wire and had just built my fiberglass QUAD 8” 3.0 cu ft forward facing ported box tuned to 31Hz for my brand new 4 Sundown Audio SA-8 V.2 Stock SPL subs. I was lucky to be in that part of the process when a lady pulled out infront of me on a 6 lane highway at rolled my truck or I might have had some injuries due to amplifiers, subwoofer box, Subwoofers, Fuse Holders, 4 Different Passive Focal Crossovers, 3 Distribution Blocks, etc… flying around possibly hitting me and injuring me. Everything was at home, ready to be put in. The only thing that suffered was my new JVC KW-NT800HDT flagship Navigation TouchScreen, which JVC replaced for free! So I am also selling that, because I already have a Navigation in my Nissan Armada. It’s not a refurbished model, it’s a brand new model.


This is how I had my new install planned out, which many of this is for sale. I had everything ready to install my new stereo which includes my 4 Brand New Sundown Audio SA-8 V.2 Stock SPL Model 8” Subwoofers modified with a lighter voice coil and removed, replaced and added 2 extra Spider Packs that were also heavier…, my brand new pair of Audiopipe AP18001D 1800wrms amplifiers, my brand new XS D3400 Battery, New Kinetic HC16V 16Volt battery with dual 12v and 16v battery post (Already Sold), my current Focal Utopia 6W2 6.75” Components installed in the front doors, my current Focal K2P 6.75” Components with Digital Design T1 silk dome tweeters for a more laid back sound installed in the rear, my current Focal PS 165 Performance 6.5” Components installed in my Q-Logic Kick Panels (Kick Panels have been sold), New Audiopipe AQX-360.4 4
channel amp, my previously installed Phoenix Gold Tantrum 500.2, 2 runs of 1/0awg OFC Cadence Cool Wire that I only had 1 run installed, Rockford Fosgate Sixty.2, several various distribution power fused and ground blocks, my new already installed JVC KW-NT800HDT 7” TouchScreen Navigation/DVD Unit and lastly my fiberglassed/MDF Dual Ported QUAD 8” Subwoofer box with the 8” Subs firing forward @ 3.0 cu ft NET tuned to 31Hz. The Gross Air Volume was well over 5 cu ft. I couldn’t have done anything close to that without raising the seats just only 3” and found out that I needed to slide my seats forward, just a tad 3” to
mount 4 of my amplifiers, 300W Power Convertor, Distribution Blocks and 4 of my Component Crossovers. This also gave my amps room to breathe and no longer over heated. I wouldn’t have been able to mount only 3 amplifiers on the back wall with the Distribution Blocks. So since it was impossible to only mount two of my amps with room to breathe and my Distribution Blocks, I needed more room to mount my 2 other amplifiers, Crossovers, Rockford Fosgate 3Sixty.2 DSP and my small 300w Power Convertor

I was able to take the stock alternator, various interior plastics (such as the center console insert, dual cup holder insert for the center console, etc…) stock CD player already in my factory car audio box in storage, Gorilla Locking Lugnuts, and some other items. These items are available for sale.


I will eventually begin posting the items, mentioned above, I have for sale soon. I have a Nissan Armada SE 4x4 so I won’t need any of the factory items and many of the other BNIB Car Audio equipment.

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