2004R High Performance Options
Looking for products to upgrade your 200-4R automatic transmission? Here are the most popular products we sell for the 2004R transmission:
Rebuild kit
Oregon Performance Transmission offers two rebuild kit options for the 2004R automatic transmission: a standard rebuild kit and a high performance version.
The high performance 2004R rebuild kit can be found here under part number OPT-2004R-RBHP, or by clicking on the photograph below.
OPT-2004R-RBHP
This HP master rebuild kit includes:
- A Transtec overhaul set with rubber seals, gaskets, o-rings, metal clad seals, and Teflon sealing rings, needed to complete your rebuild.
- All Raybestos Red HP friction clutch plates
- All Alto black Kolene Steel plates
- New fluid filter
- Kevlar Intermediate – 2nd gear band
- Bushings for the pump and case
This kit is performance rated and will handle 300% more heat and horsepower, torque and abuse than the standard clutches. The steel plates are Kolene coated with a special friction material that keeps them from slipping like the smooth steel are prone to do. This will give you a more positive clutch engagement.
Shift kit
The shift kit we typically recommend to go along with the high performance rebuild kit is the HD2 kit from Transgo. You can find it here under part number TRG-200-4R-HD2.
TRG-2004R-HD2
This newly upgraded high performance shift kit fits year 1981-up and contains the following:
- Billet aluminum 2nd gear HP servo
- .500 boost valve
- Large low-reverse boost valve
Full installation instructions are included with this kit
The new dual feed 3rd gear circuit increases direct clutch holding capacity by 200%. This kit works for both street and strip use and can be installed with the transmission in the car.
Stator Support
From the factory the 2004R transmission had trouble with the stator support wearing out prematurely. For that reason it is always recommended to upgrade to this heat treated style if you still have the stock one in your transmission. You can find the upgraded stator support here under part number NTP-45812R.
NTP-45812R
10 vane / 13 vane pump kit
This is a must for high horsepower, heavy abuse applications, but is also definitely recommended if you just want to increase the life or durability of the transmission. This 10 vane pump will help to eliminate the line pressure fluctuations and high RPM pressure drops seen with the stock pump configurations. This kit includes a 10 vane rotor, vane rotor guide, pump slide, 10 vanes, 2 upgraded hardened heavy duty vane rings, O-ring, and slide seal. You can find the 10 vane pump kit here under part number NTP-K51819A.
NTP-K51819A
Alternatively, the 13 vane pump kit can be found here under part number NTP-K51817J.
NTP-K51817J
These parts are compatible with all GM, Cadillac, Chevrolet, Buick, Oldsmobile, and Pontiac applications with the 2004R transmission. Here is a list of original vehicles that came with the 2004R transmission from the factory:
- Caprice 1982-1990
- Custom Cruiser 1981-1990
- Cutlass Supreme 1983-1987
- Delta 88 1981-1985
- Deville 1981-1984
- El Camino 1981-1987
- Electra 1981-1984
- Fleetwood 1981-1990
- Grand Prix 1984-1987
- LeSabre 1981-1985
- Monte Carlo 1982-1987
- Regal 1981-1987
Please note that while the list above identifies original vehicles with the 200-4R, this transmission has become very popular to retro-fit into older vehicles (see photo here).
The 2004R transmission is part of the Turbo-Hydramatic series and is sometimes referred to as the 200-4R, 200R4, 2004R, 200-R4, TH200-4R, THM200-4R, and even the MW9.
An easy way to identify the 4 speed automatic 200-4R is by its irregular shaped pan and non-removable output shaft housing.
These parts and upgrades can help extend the life of your 2004R automatic transmission and well as provide significant performance results!
As always, if we can answer any questions or help in another way, please do not hesitate to contact us at salesdesk@optsales.com.