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Performance Built 2004R or 200R4 Automatic Transmission and Torque Converter

This transmission has been built at our state of the art facility using the latest advancements in remanufacturing technology. We have carefully engineered a process that allows us to maximize performance and stay within a wholesale price range.

This heavy duty transmission is a direct replacement for Chevy Corvette, Blazer, Caprice, Impala, Suburban GMC Jimmy, 1500, 2500, 3500 Pickups Pontiac Parisinne, Bonneville, and Buick Grand National.

Transmission Name
  • 2004R
  • 200R4
  • 200-4R
  • THM200-4R
Vehicle Compatibility
  • Cadillac
  • Corvette
  • Blazer
  • Caprice
  • Impala
  • Suburban
  • Jimmy
  • 1500, 2500, 3500 Pickups
  • Parisinne
  • Bonneville
  • Grand National
Years Covered
  • 1981, 1982
  • 1983, 1984
  • 1985, 1986
New, Used, or Rebuilt
  • Complete Performance Rebuild
  • Remanufactured

2004R Transmission
200R4 Transmission
          Image 1 Image 2  

  • Ordering Info
  • Vehicle Info
  • Warranty
  • Our Process
Ordering Info
  List Price: $1,995.00 Toll Free: 1-888-995-PART or 1-888-995-7278
  Sale Price: $1,495.00    
  Core Deposit: $600.00 Core Questions Office Hours: Monday-Friday 8:00am to 9:00pm CST.
Weekend and holiday hours vary
  Delivery Shipping: Call for a Competitive Freight Quote  
  Core Return Shipping: Call for a Competitive Freight Quote    
  5 Star Product Rating 5 out of 5    
200R4 Transmission Specs and Applications
Make Model Engine Years
Chevy Corvette Chevrolet 305
Oldsmobile 307
Oldsmobile 5.7L Diesel
GMC Jimmy
1500 Pickup
2500 Pickup
3500 Pickup
Pontiac Parisinne
Buick Grand National
200R4 Info
Gears / Type: 4 Speed Automatic Transmission
Original Manufacturer: Turbo-Hydramatic / General Motors
Group: GM "THM" series
4X2 or 4X4: We have 2 and 4WD models available.
Recommended Fluid: ATF
Torque Converter: We don't charge extra for necessary components. The 200R4 torque converter is included with every transmission.
Upgraded Internal Components: Yes:
Performance shift kit, valve body improver kit, and more.
Please call for extreme performance upgrades
Dyno Tested: Yes:
up to 35,000 RPM at an extended period of time.
Inspection, Checked for: Leaks
Shifting Difficulties
Excessive Noise
Temperature and Performance
200R4 Gear Ratios:

2.74:1 - First
1.57:1 - Second
1.0:1 - Third
0.67 - Fourth
2.07:1 - Reverse


This transmission has a multi-case bell housing. The 200-R4 can be put into an older vehicle containing the THM-350. The main advantage of this swap is that it gives the user an overdrive gear.

There has been a great deal of controversy surrounding the name of this transmission. Many people have asked which is the correct name of the transmission, 2004R or 200R4. To answer the question, believe it or not both names are acceptable.

Hollander Interchange Numbers:

Manufacturer part number:
86278 and Lower

FREE shipping on all covered warranties

This transmission comes with a 3 year nationwide warranty.

List We cover you against any manufactured defects on this part.

List We do not charge restocking or shipping fees when a transmission qualifies for a warranty. Restocking and shipping fees are applied if a customer wants to return a non defective transmission or is outside the continental United States.

List Buyers warranty begins at original date of purchase and expires 3 years or 36 thousand miles thereafter.

This warranty does not cover any of the following:

List Use of engine, clutches, transfer case, drive line, and/or differential for purposes for which it was not originally designed (such as off-road, race car, etc.)

List Abuse, neglect, accident, or improper towing


List Towing charges, vehicle rental

List Loss of time, inconvenience, loss of use of vehicle, commercial loss or consequential damages

List Failure because of defects or inefficiencies or parts or assemblies not furnished with the transmission (flywheel, clutch, drive shaft, etc)

List Broken Gears or Shafts

List Cracked or broken cases

List No claims for labor or consequential damages will be accepted

List We are not liable for misuse or negligence causing damage, defect, injury, or loss.

List Unit must be returned for our inspection to determine fault.

Warranty Process:

In the rare case of a transmission failure please call our warranty department where a representative will assist you in the warranty process. Call Monday-Friday 9-5 Central 1-888-995-7278

Every transmission has been run on a state of the art Dyno. A Dyno simulates the conditions encountered by a transmission during every day and extreme use. This ensures that when your part arrives, it will have been rigorously tested for noises, leaks, vibrations and performance. Any part that does not meet our strict guidelines will be completely disassembled and gone through until our quality requirements have been restored.

OEM stands for Original Equipment Manufacturer. Our parts meet or exceed the guidelines set forth by the manufacturer.

Some transmissions have inherent factory flaws causing them to chronically break down. Through years of experience we have developed several procedures to help fix these problems.

Every remanufactured transmission has been built and inspected by a certified technician. Our technicians have an average experience of 10 years or more.

New Parts
All wearable parts are replaced, this includes: seals, bearings, synchronizers, rings, bushings, bands, gaskets, keys, and much more.

The final process before shipment is a complete inspection of the entire unit. During our inspection process, even the smallest of inconsistencies are addressed.

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3 Year Warranty
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