Remanufactured 5L40E Transmissions

Get A 5L40E Transmission + Install Quote

Ship Direct To Repair Shop
We provide an out-the-door price, with shipping, for a replacement remanufactured 4L80E transmission direct to the repair shop.

5L40E Transmissions At Wholesale Prices
At Street Smart, we provide remanufactured transmissions shipped factory direct at wholesale prices to save you money.

Ships with Synthetic Fluid
Ships with Pennzoil Platinum LV Multi-Vehicle ATF Synthetic Transmission Fluid

Buy Factory Direct and Save!

Save an average of $350 – $1200 than buying through a dealer or repair shop!

Learn more about Shipping, Warranty, Core Returns, and Ordering from Street Smart

How Street Smart Transmission Works

1. Request An Estimate

Select your vehicle above to receive estimate. We will display an out-the-door price for a replacement remanufactured transmission, along with local installation estimate, shipped free to one of our recommended installers or your mechanic.

2. Order Factory Direct & Save

Buy factory direct wholesale and save an average $350 to $1200 vs. buying through shops or dealers. Special Financing available through PayPal Credit. All transmissions come with a 3 year, unlimited mile, parts and labor, nationwide warranty.

3. Free Ship + No Core Charge

Always free shipping to any commercially zoned address in the continental US*.  No up-front core charges.** At Street Smart, we do not charge you hundreds of dollars extra for core charges.
*Residential delivery add $200. We do not ship to AK, HI, PR or International. 
**Excluding Dodge Diesel 48RE, 65RFE & 68RFE models.

4. Free Core Pickup

Your mechanic installs your new transmission, and places your old transmission (core) into our reusable shipping container. You let us know when your vehicle is done, and we’ll send a truck to pick up the core free, within 24 hours.

Our 5L40E Updates and Upgrades

► Remanufactured pump, with new line bore bushings to eliminate leaks and provide superior flow and durability.

► Remanufactured valve body, with complete system correction and recalibration kit, improves pressure control and shift quality.

► Fully remanufactured torque converter is tested for leaks, lock-up, concentricity, and balance. Upgrades exceed OE requirements and eliminate the possibilities of front seal leaks, premature bushing wear, and vibration.

► All new, bushings installed in key locations to improve internal fluid flow control and fluid pressures.

► Complete system correction and recalibration kit installed to address several OE flaws. Modifications include updates to servos, the PR system, and valve body accumulators.

► Complete road simulation using a dynamometer testing program called C.A.R.S. (Computer Aided Road Simulation). Every transmission is cold and hot tested before shipment.

5L40E Vehicle Applications

How Many Variations of the 5L40E?

There are many different variations (so we have over 60 different part numbers!). Each one for a different engine size (bellhousing) and varying electronic and solenoid systems for different years.

Only certain models will interchange with others, which is why we ask for your 17-digit VIN# when you order so we are 100% sure it is the matching unit for your vehicle!

5L40 Series Applications:

2004–2006 Cadillac CTS (RWD)
2005–2006 Cadillac STS (RWD)
2004–2006 Cadillac SRX (RWD)
2008–2009 Pontiac G8 (RWD)
2004–2006 Cadillac CTS (AWD)
2004–2006 Cadillac STS (AWD)
2004–2006 Cadillac SRX (AWD)
2006 Pontiac Solstice (Not avail)
2007 Saturn Sky (Not avail)
BMW 3 Series (Inquire for price)
BMW 5 Series (Inquire for price)
BMW Z3 (Inquire for price)
BMW X5 (Inquire for price)
5L40E Series Applications:

5L50 Series Applications:

2004–2006 Cadillac XLR
2005–2006 Cadillac STS
2004–2006 Cadillac SRX

Remanufactured 5L40E vs. Rebuilt or Used

Reman 5L40E vs. Rebuilt 5L40E?
Both are good options but the best option for you depends on the transmission problem, the year, make and model of vehicle, the mileage and the vehicle value. What kind of warranty coverage are you looking for? Remanufactured transmissions carry a longer, 3 year, nationwide warranty with additional upgrades while a rebuilt unit generally carries up to a 1 or 2 year warranty and upgrades vary from shop to shop.
Reman 5L40E vs. Used 5L40E?
Buying a used 5L40E transmission may save you money. However, if the unit does not work properly after installed, you will more than likely have to pay the labor again for removal and reinstall of the transmission PLUS the freight to ship the transmission back to the salvage yard. The additional cost may be higher than installing a reman or rebuilt transmission–not to mention the extra downtime. Warranties for a used transmission is only 30 days, 60 days, 90 days or 6 months. Used transmissions, since there is no way to know how many miles are on them, may fail at any time.

3 Year, Unlimited Miles Nationwide Warranty
Parts & Labor Coverage

Our commitment to delivering excellent service doesn’t end at the closing of the sale! Should you have any questions or concerns about your Street Smart transmission, our Product Support Team is only a phone call away.

So what does a No Hassle Warranty really mean?

• You’re covered for 3 years, unlimited miles.
• Your warranty attaches to your vehicle and transfers to new owners.
• You’re covered anywhere in the continental United States.
• You’re back on the road fast; we send you a replacement transmission. as soon as your warranty diagnosis submitted!
• We pay labor to the shop installing your replacement transmission.

Labor Warranty Defined: Up to $50/hour MItchell book hours for removal and re-installation. Must be initially installed at an auto repair shop for labor warranty to be valid. Auto repair shop is defined as repair shop whose primary business is automotive repair and provides auto repair service to the general public, and the initial install is done on a repair order.

Commercial Application Defined: Vehicles of larger than one ton (F450/F550, 4500/5500 series, motorhomes), transportation for hire (taxis, shuttles, bus,  limo) delivery service, business-owned commercial-use vehicles, police/emergency vehicles, tow trucks.

A Day in the Life of a Transmission Video

Learn more about Shipping, Warranty, Core Returns, and Ordering Works

Our Recent Reviews

We let our reviews speak for us.

5L40E Diagnostic Trouble Codes

Trouble CodeDescription
P0711Transmission Fluid Temperature Sensor Circuit Range/Performance
P0712Transmission Fluid Temperature Sensor Circuit Low Input
P0713Transmission Fluid Temperature Sensor Circuit High Input
P0714Transmission Fluid Temperature Sensor Circuit Intermittent P0715
P0715Input/Turbine Speed Sensor Circuit
P0716Input/Turbine Speed Sensor Circuit Range/Performance 
P0717Input/Turbine Speed Sensor Circuit No Signal
P0718Input/Turbine Speed Sensor Circuit Intermittent
P0720Output Speed Sensor Circuit
P0721Output Speed Sensor Circuit Range/Performance
P0723Output Speed Sensor Circuit Intermittent
P0729Gear 6 Incorrect Ratio
P0730Incorrect Gear Ratio
P0731Gear 1 Incorrect Ratio
P0732Gear 2 Incorrect Ratio
P0734Gear 4 Incorrect Ratio
P0735Gear 5 Incorrect Ratio
P0740Torque Converter Clutch Circuit Malfunction
P0741Torque Converter Clutch Circuit
P0742Torque Converter Clutch Circuit Stuck On
P0744Torque Converter Clutch Circuit Intermittent
P0748Pressure Control Solenoid 'A' Electrical
P0750Shift Solenoid 'A'
P0753Shift Solenoid 'A' Electrical
P0755Shift Solenoid 'B'
P0758Shift Solenoid 'B' Electrical
P0767Shift Solenoid 'D' Stuck On
P0850Park/Neutral Switch Input Circuit
P0897Transmission Fluid Deteriorated
P0973Shift Solenoid “A” Control Circuit Low
P0976Shift Solenoid “B” Control Circuit Low
P0977Shift Solenoid “B” Control Circuit High
P0979Shift Solenoid “C” Control Circuit Low
P0980Shift Solenoid “C” Control Circuit High
P0982Shift Solenoid “D” Control Circuit Low
P0983Shift Solenoid “D” Control Circuit High
P0984Shift Solenoid “E” Control Circuit Range/Performance

5L40E History

The 5L40-E and 5L50 are a series of automatic transmissions made by General Motors. Designed for longitudinal engine configurations, the series includes 5 forward gears and is used in the GM Sigma platform vehicles from Cadillac and the Pontiac Solstice and certain BMW models.

The electronically controlled transmission is designed around a fully articulated Ravigneaux gearset that is controlled by electronically timed application of several range-specific hydraulic clutches, in combination with mechanical one-way sprag clutches. The 5L40E unit’s centerpiece is an automatic overdrive which supersedes the French-made 4L30E four-speed automatic light-duty gearboxes, and like them features a torque converter clutch to eliminate slipping losses in select forward ranges. It is assembled in Strasbourg, France.

The 5L40/50 series was replaced in 2007 with the 6L50 six-speed.

The 5L40-E was designated in either “M82” (rear-wheel drive) or “MX5” (all-wheel drive) versions for service in BMW vehicles from 2000 model year until the design was superseded by (for BMW) the 6L45E and (for all others) the 6L50E series electronic automatic transmissions in 2007 . It is designed for service in vehicles up to 4000 lb (1814 kg) GVWR and in service was mated to a selection of final drive ratios 3.42:1, 3.73:1, or 3.91:1 depending on the carline. The 5L40-E had been designed for 1.8–3.6 L engines with a maximum of 250 ft·lbf (340 N·m) of torque. It was underrated when used in combination of M57D30 engines. As the M57D30 rated torque output of 390/410Nm.

The 5L50 is engineered to handle the stresses from vehicles weighing up to 5000 lb (2268 kg) GVWR. Final drive ratios include 2.93:1 and 3.23:1. The 5L50 can handle up to 311 ft·lbf (422 N·m) of torque.