We consider a diode plate alternator to be a worthy investment in the long run. We are here to help you pick the best one for your purposes from all the best available products in market today.

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Our Top Picks:

Best Overall: Buy: Acdelco Diode Plate Alternator READ REVIEW

Best For Exact Fit: Buy: Parts Player Diode Plate Alternator READ REVIEW

Best For Diesel Engines: Buy: Powermaster Diode Plate Alternator READ REVIEW

Best For Price Imo: Buy: Aj Electric Diode Plate Alternator READ REVIEW

Best With Quick Ship: Buy: Db Electrical Diode Plate Alternator READ REVIEW

Best With Following Vehicles: Buy: $/Reliable Diode Plate Alternator READ REVIEW

Best With Diode: Buy: Premier Gear Diode Plate Alternator READ REVIEW

Best For Those: Buy: Vintage Auto Garage Diode Plate Alternator READ REVIEW

Best For Muscle Car: Buy: Speedway Motors Diode Plate Alternator READ REVIEW

Best For Swapping To Digital Gauges: Buy: Discount Starter Alternator Diode Plate Alternator READ REVIEW

Best Overall: Acdelco Diode Plate Alternator

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The Acdelco Diode Plate Alternator is the best long-standing alternator on the market today. The Acdelco diode plate alternator is thermal, can be bought for good value and it is great for a great price. These alternators will provide the same performance, durability, and service life you expect from acdelco. Also, this is an industry standard practice that involves disassembly of existing units, and replacing components that are most prone to wear with new components.

The alternator looks good and has universal in design. Most importantly, the acdelco diode plate alternator can search for the correct part, it is packaged well and has a vehicle design.

Most buyers opine that the alternator is a 9 o'clock configuration out of the box. Also, they strongly agree that the alternator will drain the battery when the engine is off. In addition, they also found that the inherently strong construction of the rotor in an alternator, compared to the armature in an automotive generator, allows the alternator to be turned faster than a generator, using larger crank pulleys, and smaller alternator pulleys. In short, the tone of buyers is very positive and we believe that the alternator suits the purpose.

• This fits a lot of different vehicles.
• This is not one wire alternator. It requires 3 wires.
• This is an older setup with only 2 spade terminals and a battery post.
• This looks the same, mounting location, plug location and look.

Best For Exact Fit: Parts Player Diode Plate Alternator

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate alternator. The Parts Player Diode Plate Alternator is exactly that - it's a simple alternator that hits all the right notes. The parts player diode plate alternator is very quiet and it is perfect for exact replacement. See product description for fitment chart. Further, the alternator works as expected and it fits right.

The alternator is affordable and it comes with fit right. Further, it is very happy and it is best for perfect fit. Above all, the parts player diode plate alternator is tested for reliability, works great and it is good for tight fit.

Almost all buyers opine that the alternator is perfect well after about 15k miles, even with pulling a camper all over the west last summer on 95. And, they say that the alternator would definitely come up then. And, a few say that the alternator is easy to remove with the big bar.

• This alternator went on a 2007 tahoe and a 2010 gmc sierra with no modification.
• All items were tested for reliability, durability and performance.
• This is easy to install but I noticed a whine coming from the alternator immediately.
• This has the best price, would be perfect with fast shipping and it worked perfectly.

Best For Diesel Engines: Powermaster Diode Plate Alternator

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If you often find yourself confused about convenient and suitable alternator, Powermaster Diode Plate Alternator is your solution. The powermaster diode plate alternator is very nice and has a regulator style. Make sure this fits by entering your model number. In addition, this is great for diesel engines and it 's great so far.

The alternator is current and it is good for country of origin. Above all, the powermaster diode plate alternator is made with great choice, is solid, it has an output terminal and has a mounting style.

Almost all buyers found that the alternator is a question best answered by the manufacturer as the plugs and fittings can be different by model. And, they also found that the alternator would fit on a 1985 s-10 with 2.8l. Moreover, a few also found that this prticualr alternator can be used as an internal or external regulator. To sum up, at the price, they believe that they got a steal of a deal with it.

• This fits as described and charges at the right voltage.
• This will fit as long as you have the original engine and mounting brackets.
• This is made in the USA, internally regulated alternator.
• This is for a sbc 400, not a stock YJ.

Best For Price Imo: Aj Electric Diode Plate Alternator

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If you often find yourself confused about the appropriate and satisfactory alternator, Aj Electric Diode Plate Alternator should be your first option for buying. The aj electric diode platealternator is very happy, It is used for plenty of power and has a mounting style. Please verify you have a four (4) pin regulator plug-in connection. Further, the alternator is inexpensive, great so far, it is local and has a regulator style.

The alternator fits great, looks great, it can search for the correct part and has alternator style. Most importantly, the aj electric diodeplate alternator allows for factory fit and it allows for super fast shipping.

Almost all customers agree that the alternator can fit a body with an ls, yes. Also, they also found that the alternator does 100 amps at idle speed. In addition, a few say note: if the alternator you have now is 145 amp, you may not need to replace the belt.

• This will not give 250 at idle.
• This comes with a 5 groove serpentine belt pulley.
• This is a little tight but slide right in.
• This is great for audio and an extra battery.

Best With Quick Ship: Db Electrical Diode Plate Alternator

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Db Electrical line of alternators comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Db Electrical Diode Plate Alternator is affordable and it can be of good quality. Db electrical keeps parts stocked so they are ready to ship when you place an order, getting you up and running all the soon. In addition, it is built to meet the specifications of Thermo King.

Finally, the DB electrical diode plate alternator ran for an hr, can wait for a great deal, It is perfectly fine and has a vehicle design.

In short, many customers have used the db electrical diode plate alternator for more than a few months without any issues, and it shows no sign of giving up.

• A 1-year warranty protects you after your purchase.
• This is made with quick shipping and it works great.
• 100% new aftermarket alternator built to meet oem specifications for thermo king.
• They take great pride in providing top-quality products that keep you moving forward.

Best With Following Vehicles: $/Reliable Diode Plate Alternator

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Next on the list, we've got yet another alternator that manages to win our hearts. It's the $/Reliable Diode Plate Alternator and it's widely considered as one of the most convenient alternators you can buy. Make sure this fits by entering your model number. Moreover, the alternator is compatible with the following vehicles. When it comes to searching for a reliable alternator, the $/reliable diode plate alternator is definitely your first choice.

• Stick with what you know and choose a genuine oem product.
• Good investment for the long term.

Best With Diode: Premier Gear Diode Plate Alternator

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Compared with other alternators in this category, the Premier Gear Diode Plate Alternator has a convenient design. The premier gear diodeplate alternator is professional and it performs perfectly. Make sure this fits by entering your model number. These changes require a new generation of replacement alternators.

The alternator is made with standards for performance and it is designed for clockwise rotation. Further, the alternator is current and it is thermal. Most importantly, the premier gear diode platealternator is built for consistent performance and it is very happy.

A few say that this is a low amp unit, but it does the job.

• Delco, cs130 series, internally regulated/external fan.
• This is remanufactured or previously used.
• 100-105 amp/12 volt, clockwise rotation, 6-groove pulley, 07:00 plug clock.

Best For Those: Vintage Auto Garage Diode Plate Alternator

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If you often find yourself scrambling for an appropriate and satisfactory alternator, Vintage Auto Garage Diode Plate Alternator is your end point. Ready to plug into '73 & up gm internally regulated alternator. In addition, the alternator is used to excite the alternator to charge correctly and works well on older vehicles, There is a diode to prevent voltage feedback. To sum up, with a 4.4 rating and more than 360 buyers, the vintage auto garage diode plate alternator stands as the best choice.

One customer says - "Makes installing a 3si alternator easy and looks clean. ". Almost all customers found that the alternator is great for those who have issues with car running without a key because of feedback from the alternator to the ignition switch.

• A special diode prevents engine running and voltage feedback.
• Delco alternator 10si and 12si alternator excit wire plug with diode.
• New and hot releases.

Best For Muscle Car: Speedway Motors Diode Plate Alternator

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Speedway Motors makes beautiful and great alternators with classic and smartly chosen materials. Ready to plug into '73 & up gm internally regulated alternator. Further, the alternator is pre-installed and protected with heat shrink. To sum up, with a 4.6 rating and more than 72 buyers, the speedway motor diode plate alternator stands as the best choice.

Almost all buyers quickly discovered that the alternator can now start and let idle and the charging system works perfectly.

• Speedway motors is comprised of people, just like you, who love cars.
• The Manufacturer says: With speedway motors, we know how fast you chase your dreams.
• Delivers what they promise.

Best For Swapping To Digital Gauges: Discount Starter Alternator Diode Plate Alternator

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For a low asking price, Discount Starter Alternator Diode Plate Alternator has managed to overwhelm their customers by packing as many features as they could. Simply plug it into the alternator, then plug in the repair lead harness. In addition, the alternator is current and it can change with wire length. In conclusion, with a 4.1 rating and more than 72 buyers, the discount starter alternator diode plate alternator stands as the best choice.

Most buyers found that the alternator is perfect for swapping to digital gauges.

• One of the newcomers and featured product.
• New and hot releases.