A518 Transmission

You Can Count On.


Yep, It's Really That Easy.







Mopar / A518 4-Speed / Automatic Transmission

Know Your Options

So, you are about to spend you're hard earned dollar on a transmission for your vehicle and you've taken to the internet to educate yourself about your future purchase. You have three options when it comes to replacing your A518 transmission, Used, Rebuilt or Re-Manufactured. Within those options, the savvy consumer is looking for the Best Value, the Best Quality, and the Best Warranty. Let's take a closer look at those three options with the knowledge of those who know them best.

A Used A518 Transmission 

Used A518 transmissions are no doubt an enticing option because of they’re affordability. However, locating the exact match to your vehicle is difficult and sourcing a properly functioning used A518 Transmission may take several installation & removal attempts before getting a good one. This can quickly balloon into a lot of wasted time and money.  


A Rebuilt A518 Transmission

The term rebuilt can have different meanings from shop to shop. For example, whether your rebuilt A518 transmission will have all of the OE manufacturer updates and upgrades to increase its strength and longevity will vary from shop to shop. A standard rebuild consists of only replacing items that are completely worn out. Items that are marginally still good go back into a rebuilt transmission the way they came out. This is why the average warranty for a rebuilt A518 transmission is only 1-Year or 12,000 miles.


A Re-manufactured A518 Transmission

A properly Re-Manufactured transmission will have all the OE manufacturers specified updates and enhancements necessary to ensure the proper function and longevity of the transmission for years to come. Assembly should take place in a clean dust free environment, just as it was from the OE manufacturer. A Re-Manufactured transmission should at least have a 3-Year Warranty. Not all Re-Manufactured Transmissions are created equal. Component selection, manufacturing and testing methods can vary from company to company.

What Makes BestBuy The Nations Leading Transmission Provider?

The Relentless Devotion To Providing The Absolute Best.

The Best Value.

A Re-Manufactured A518 Transmission For The Price Of A Rebuild.

The Best Quality.

Each A518 Is Engineered To Exceed OEM Specification. 

The Best Warranty.

Industry Leading

5-Year 100,000 Mile

Nationwide Warranty. 





Meet One Of The Best Selling Transmissions in the U.S. 20 Years & Counting.

1988 Thru 2003








Not Used.  Not Rebuilt.  Re-Manufactured.

Lets Take A Look Inside

Pictured below are just a few of the Updates & Upgrades that go into each A518 Transmission.
Have Peace Of Mind, knowing that your new A518 Transmission has all the Updates developed by Dodge Engineers combined with the Latest Industry Advancements providing Unparalleled OE Strength and Durability.

Completely remanufactured pump provides consistent internal pressures, eliminating slippage and delayed engagement.


Overdrive (OD) direct clutch updated to 8-plate clutch with new thrust plate for increased durability. 


Overdrive (OD) clutch updated to 4-plate clutch for increased durability. 

Overdrive (OD) planetary assembly upgraded to a 5-pinion unit for increased durability.


Fully remanufactured torque converter is tested for leaks, lockup, concentricity, and balance. Upgrades exceed OE requirements and eliminate the possibility of front seal leaks, premature bushing wear, and vibration. Diesel and heavy-duty gasoline applications include new lock-up lining.

New external fluid cooler provided to improve cooling and prevent fluid contamination. 

All-new custom-spec bushings improve internal fluid flow control and pressures.


Fully remanufactured valve body includes updated throttle valve, manual valve, 4-spool switch valve, and pressure regulator valve for improved shifting, lubrication, and performance.


Modified valve body allows torque converter charge in park to increase durability and enhance gear engagements.


Oversized Low/Reverse brake band strut maintains correct band clearance to eliminate drum slippage and No-Reverse condition.


Custom-machined output shaft to fit both late- and early-style driveshaft yokes.


Bushings and machined surfaces polished to a mirror-like OE finish of 16 RA or less.  

The Result?

Let The Length Of Our Warranty Be A Testament, Of The Faith We Have In Our Product.

Having one of the industries longest warranties is great, however, standing behind it is where we really like to shine. 

Here For You Now, There For You After.

Nationwide Coverage

You are covered anywhere and everywhere in the continental United States.

Instant Replacement

A replacement transmission is sent to you as soon as your warranty claim is submitted.

Paid Parts & Labor

If  your  transmission  is professionally installed we cover $50 an hour to repair or replace it.

Q. If I install the transmission myself, will it still be covered under warranty?
A. Yes, self-installation is covered. Labor is not.

Q. What if something happens to the transmission?

A. Product support is just a phone call away. We pride ourselves in having one of the most comprehensive support systems in the industry.

Free Shipping.

With Six Strategic Warehouse Locations Across The U.S. BestBuy Transmission Has A Unique Advantage. 

Get what you need, when you need it. Whether your out in the sweltering Mojave Desert watching the occasional tumbleweed skip by, or enjoying the utter chaos of New York City, we've got you covered with a transmission waiting nearby.

Q. How long will it take?

A. Your transmission will arrive within 5-7 business days. Express orders arrive within 1-3 business days. 


Q. Can the transmission be sent to my home?

A. Yes it can. Residential deliveries require a $50 lift-gate for the delivery and return of the old core. 

Q. What if its Sold out or I'm in the middle of nowhere?
A. In most cases you will still receive the transmission within 7 business days.

Q. How do I return the core?

A. Simply place your old core in the container the new transmission came in and give us a call.

Located Nearby?

Save time with a local pickup.

Call for details. 800-588-4148

Put To The Test.

HOT-Tested.  COLD-Tested.  LOAD-Tested.

Each A518 Is Fully Dyno-Tested.

Money Back Gaurantee. 

If you are not completely satisfied with your transmission when it arrives, send it back for a full refund.

Our A518 is the functional and visual equivalent of a new transmission. If for any reason it does not meet this description we want it back.
No Core Deposit.

We do not charge a core deposit. However, we do need your old core back. Return shipping is pre-paid.

No Guesswork.

Whether you order online or by phone. Each A518 is first verified by your VIN #. We then provide you with a direct replacement match.

How Do I Pay?

We Accept all major Credit and Debit Cards. You may also pay with a check by phone.

Let's Review!


Q. What will I need to order?

A. Vehicle VIN # and current mileage.


Q. Can I install it myself?

A. Yes, Self-installation does not void your warranty.


Q. Does my old transmission core need to be out when the new transmission is delivered?

A. No, you have 14 days from the date of delivery to schedule your core return. Need more time? No problem, just let us know.


Q. How is the transmission shipped?

A. Transmissions are shipped via truck freight (18-Wheeler) through FedEx Freight or R&L Carriers. Depending on your location another carrier may be chosen to better service your area.


Q. How is the transmission packaged?

A. Your order will arrive securely strapped inside a sealed high strength polyethylene (plastic) container.


Q. How do residential deliveries work?

A. For residential deliveries, the carrier must transfer your transmission onto a smaller truck for delivery. The carrier will then call you directly to schedule an appointment for delivery. Because of the extra steps involved residential deliveries are $50 extra.


Q. What else will I need for install?

A. Depending on your transmission type some external components may need to be transferred over from your original transmission. For example, the neutral safety switch, speed sensor, tailhousing etc.


Q. Does the transmission come with fluid? What ATF fluid will I need?

A. Your transmission will arrive with approximately 1-3 quarts of full synthetic ATF in it from testing. The torque converter is already primed with fluid and does not need to be removed. You will have to top the transmission off with fluid before operating. We recommend using our full synthetic ATF or any popular brand full synthetic ATF.


Q. So, what's the total cost?

A. The price you see truly is the price you pay, no smoke and mirrors here folks!

A518 Transmission | 1988 Thru 2003

1 - Piece Case w/ Torque Converter


Fitment Guide:


Years: 1988 - 1989 - 1990 - 1991 - 1992 - 1993 - 1994 - 1995 

            1996 - 1997 - 1998 - 1999 - 2000 - 2001 -2002 - 2003


Makes: Dodge - Jeep

Dodge Ram pickups and vans 150/250/350 V8
1988-1993 Dodge Ramcharger SUV 5.2L & 5.9L
1998 Jeep Grand Cherokee 5.9L
1993-1995 Jeep Grand Cherokee 5.2 V8
1996 Dodge Dakota V8

1998-2003 Dodge Dakota 5.9L R/T
1998-2003 Dodge Durango 5.9L V8
1998–2003 Dodge Dakota R/T
1994-1995 Dodge Ram 2500/3500 V8
1995 Dodge Dakota 5.2L Magnum v-8
1995 Dodge Ram Van 2500 5.2L Magnum V8 

Drive: 2WD or 4WD


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                                   Reg. $2,095

                 Savings Event.     -300

                          Now Only. $1,795

Now Only


  • Torque Converter.

  • Trans Cooler.

  • Delivery.

  • Core Return.

  • 5-Year Warranty.

  • Peace of Mind.

Describe your image.

Describe your image.

Describe your image.

Describe your image.


You don't have to take our word for it, Best Buy Transmission customer reviews can be found from many different reputable sources online.

We understand you may be hesitant to order a transmission online or by phone, which is why we urge our customers to read our reviews. 

See More Reviews by Clicking HERE

Monday Thru Friday
9am To 5pm
Eastern Time
Corporate Offices:
1900 Glades Rd. Suite 500
Boca Raton, FL. 33431

Here To Help.

Whether you need a quote or availability on a transmission or are simply seeking more information we are here to help.


PS: The price you see really is the price you pay. There are no additional fees aside from residential delivery ($50). 

Here Are Some Of The Name's That Trust BestBuy Transmission For Their Powertrain Needs.

Who Relies On BestBuy?



BestBuy Transmission LLC. is a privately held, volume wholesale and retail provider of transmissions to the personal, business and government sectors. The unequaled ability to provide nearly any transmission, when you need it, where you need it, with one of the industries longest warranties, are just a few of the points that make BestBuy transmission a provider unlike any other in the industry.


Our company is founded on the sole principle of providing the very best and we will settle for nothing less. From the quality and value of our product to your experience as our customer, providing the best has made BestBuy Transmission the preferred choice among the public and professionals alike.


BestBuy Transmission is headquartered in Boca Raton, Florida. However, we are a nationwide operation, serving customers through locations across the U.S.