Looking for a 4L80E transmission for sale usually means one of two things. Either your heavy-duty GM truck, van or Suburban has started slipping and dropping into second gear, or you are building something with serious torque and want a four-speed automatic that will not fold. Both are good reasons. The 4L80E is one of the toughest automatics GM ever put in a truck.
Need one now? Our 4L80E transmission for sale is in the shop with price and details, or send us your VIN and we will quote a 4L80E transmission for sale that matches your vehicle. We ship worldwide.
Below you will find the specs, the vehicles that use it, the early versus late differences, known problems, a checklist for buying a used unit, prices, installation tips and how to order from anywhere in the world.
Table of Contents
Why a Used 4L80E Transmission for Sale Makes Sense
The 4L80E is basically the old Turbo 400 with an overdrive gear and electronic control. That bloodline is why people love it. It handles heavy loads, it takes abuse that would kill a lighter box, and parts are everywhere.
Because GM built it for well over a decade and used it in work trucks, vans and SUVs, there is a steady supply of cores. A healthy used 4L80E transmission for sale costs a lot less than a new or built unit, and for a three-quarter-ton truck that still has plenty of life in it, that is often the smart move.
Swappers like it too. It bolts to the Chevy small-block, big-block and LS bolt pattern, so a 4L80E transmission for sale is a popular choice for LS swaps, hot rods, off-road rigs and tow vehicles that need more strength than a 4L60E can give.
4L80E Specifications
Here is what you need to know when matching a 4L80E transmission for sale. The design comes straight from the Turbo-Hydramatic 400, and GM built the 4L80E at Willow Run Transmission in Ypsilanti, Michigan.
| Specification | 4L80E |
|---|---|
| Type | 4-speed automatic with overdrive, rear-wheel drive (longitudinal) |
| Manufacturer | General Motors (Hydra-Matic) |
| RPO code | MT1 (4L85E is MN8) |
| Production | 1991 to about 2009 in GM vehicles |
| Predecessor | TH400 (3L80) |
| Gear ratios | 1st 2.482, 2nd 1.482, 3rd 1.000, 4th 0.750, Reverse 2.077 |
| Max engine torque | About 440 lb-ft (4L85E about 460 lb-ft from the factory) |
| Max gearbox torque | About 885 lb-ft |
| Max GVWR | Up to 18,000 lb depending on axle and vehicle |
| Max GCWR | About 22,000 lb |
| Case | Die-cast aluminum with integral bellhousing |
| Bolt pattern | Chevy V8 (small-block, big-block, LS) |
| Length | About 26-1/4 inches |
| Weight | About 236 lb dry, 260 lb with fluid |
| Output shaft | 32 spline (2WD and 4WD) |
| Torque converter | Lock-up converter, about 310 mm |
| Speed sensors | Input and output speed sensors |
| Fluid | DEXRON VI, about 13.5 quarts total (varies by application) |
| Limp mode | Second gear with no electrical power |
Compared with the TH400, the ratios are the same in the first three gears. The 0.75 overdrive is the big change, and it is why a 4L80E transmission for sale is so popular with people converting older trucks for highway driving.
Which Vehicles Use the 4L80E?
The 4L80E went mostly into heavy-duty GM applications. The main ones are:
- Chevrolet C/K and GMC Sierra 2500 and 3500, 1991 to 2000
- Chevrolet Silverado and GMC Sierra 2500HD and 3500 with gas V8s, 2001 to 2007 (classic body)
- Chevrolet C3500HD and GMC chassis cabs, 1991 to 2002
- Chevrolet Suburban and GMC Yukon XL 2500
- Chevrolet Avalanche 2500
- Chevrolet Express and GMC Savana 2500 and 3500 vans
- Hummer H1
- Some Rolls-Royce, Bentley and Jaguar V12 models in the 1990s
Engines behind it include the 454 big-block, the 7.4 Vortec, the 6.5 turbo diesel, the 5.7 Vortec, and later the 6.0 Vortec and 8.1 Vortec in heavy-duty trucks and vans. The 4L85E version went behind higher-torque engines such as the 8.1 in some Suburbans and vans. If your engine is tired too, look at our Vortec 8.1 engine guide or the Vortec 8.1 engine for sale page.
How to Identify a 4L80E
People mix up GM automatics all the time, especially at salvage yards. Here is how to spot the real thing under a truck or on a pallet.
- Pan shape: the 4L80E pan is irregular, longer than it is wide, held on by 17 bolts. A 4L60E pan is squarer with 16 bolts. A TH400 pan has an uneven, almost guitar-like outline with 13 bolts.
- Integral bellhousing: the bell is cast with the main case. There is no separate bellhousing to unbolt, unlike later 4L60E units.
- Length: it is long. At around 26 inches it is a few inches longer than a TH400 and noticeably longer than a 4L60E.
- Electrical connector: one large round connector on the driver side, plus input and output speed sensor plugs.
- ID tag: a stamped tag or ink code on the case gives the model year and plant code.
If a seller cannot show you these features in photos, be careful. Every 4L80E transmission for sale we offer comes with photos on request so you can check before you pay.
A Short History of the 4L80E
For decades the TH400 was the go-to heavy-duty GM automatic. It was strong but it had only three gears, and by the late 1980s fuel economy rules and highway driving demanded an overdrive. GM’s answer was to take the TH400 and add a fourth gear and electronic control.
The result arrived in 1991 in the C/K pickups and quickly spread to vans, Suburbans and the Hummer H1. It also found its way into luxury cars, because Rolls-Royce, Bentley and Jaguar needed a strong automatic for their big engines. Over the years GM updated the harness, the filter, the speed sensors and the valve body, and released the 4L85E for higher loads.
When the six-speed automatics came along, the 4L80E slowly left production trucks. Its reputation never faded though. That is why a solid 4L80E transmission for sale still finds a buyer quickly, whether it goes into a work truck, a classic restomod or a weekend drag car.
4L80E vs 4L85E
The 4L85E is the heavy-duty version. It arrived in the early 2000s with five-pinion planetary carriers in place of four-pinion ones, plus stronger internals in a few other places. From the outside they look the same.
For most buyers, a standard 4L80E transmission for sale is plenty. If your truck left the factory with a 4L85E (RPO MN8), or you are putting it behind a big-torque engine, ask for a 4L85E or plan to upgrade the planetaries.
Early vs Late: Details That Must Match
Not every 4L80E transmission for sale is a straight swap. Check these points before you pay.
Model year family
Units from 1991 to 1996 differ from 1997-up units in the case connector, internal harness, filter and a few valve body parts. The early boxes also used a different input speed sensor setup. Mixing an early transmission with a late truck harness, or the other way round, usually means adapter work.
2WD or 4WD
2WD units have a long tailhousing and slip yoke. 4WD units have a short output with the adapter for the transfer case. Buy the drive type your truck uses.
Bellhousing pattern
The bellhousing is cast into the case. It fits the Chevy V8 pattern only. You cannot bolt a 4L80E to a Buick, Olds or Pontiac engine without an adapter.
Torque converter and flexplate
Gas and diesel converters differ in stall speed and bolt pattern. Make sure the converter and flexplate suit your engine, especially on a 6.5 diesel or an LS swap.
Controls
Factory trucks control the 4L80E from the PCM, and some diesel trucks use a separate TCM. In a swap you need a compatible PCM or an aftermarket transmission controller.
Send us the VIN and RPO codes, and we will match your 4L80E transmission for sale on all of these points before it ships.
7 Checks Before You Buy a 4L80E Transmission for Sale
- Know the donor. Ask what it came from, year, engine and mileage. A unit from a Suburban or van is often in better shape than one from a hard-worked plow truck.
- Inspect the fluid. Red or light brown is fine. Black, burnt-smelling fluid with lots of friction material in the pan is a warning.
- Check the pan magnet. A fine grey film is normal wear. Chips and chunks are not.
- Check shaft play. Rock the input and output shafts. Heavy side play suggests worn bushings.
- Look at the case. Check for cracks around the bellhousing ears, mount pads and tailhousing bolts.
- Look at the harness connector. Fluid seeping past the connector and into the pins is a known 4L80E issue. Clean pins and a good seal matter.
- Ask how it was tested. A unit that was running and shifting before removal is the best starting point.
We inspect every unit before it ships and tell you what we found. Our tested used engines page explains how we check parts, and the same ideas apply to any 4L80E transmission for sale we offer.
Common 4L80E Problems
The 4L80E is strong, but not perfect. These are the faults we see most often.
Limp mode in second gear
When the computer loses control, the box defaults to second. Often the cause is not inside the transmission at all. A leaking connector, a damaged harness, a bad speed sensor or a weak ground can do it. Always check wiring first.
Speed sensor faults
Both input and output speed sensors can fail or lose their signal. You get erratic shifts, a jumping speedometer or a code. These are cheap parts and easy to replace.
Overheating
Heavy towing with a small cooler cooks the fluid. Burned fluid then wears clutches and seals. A good external cooler is a must on any towing truck.
Worn bushings and leaks
High-mileage units can wear the pump and case bushings, which lowers pressure and causes slipping. Rear seal leaks and pan gasket leaks are also common.
Torque converter issues
Shudder when the converter locks up, or a converter clutch that will not engage, points to converter wear or a TCC solenoid fault.
Clutch and band wear
Like any automatic, the 4L80E wears its clutches and bands over time. Slips and flares under load are the first sign.
Signs Your 4L80E Is on the Way Out
- Stuck in second gear with a transmission code
- Slipping under load or when towing
- Delayed engagement into drive or reverse
- Harsh, banging shifts or no upshift into overdrive
- Dark, burnt fluid with debris
- Shudder at highway speed when the converter locks
If the wiring checks out and you still have these symptoms, a replacement 4L80E transmission for sale is probably the quickest way out.
Rebuild or Replace?
The 4L80E is a very rebuildable transmission, and a good shop can make one stronger than stock. If you are keeping the truck for years and want it built for big power, a rebuild with upgraded parts may suit you.
The downside is time and cost. A rebuild can take a week or more, and hidden damage pushes the bill up. A good used 4L80E transmission for sale gets a work truck moving again much faster, and you keep your old core to rebuild later as a spare.
Towing, Swaps and Big Power
Plenty of people buy a 4L80E transmission for sale for an engine swap. The usual setups are:
- LS swaps: the 4L80E bolts to the LS block directly. You need a suitable flexplate, converter and controller.
- Big-block and diesel builds: it handles the torque that breaks lighter boxes.
- Older truck upgrades: replacing a TH400 with a 4L80E adds an overdrive for lower highway RPM.
For towing, fit a big cooler, use tow/haul settings if your controller has them, and watch fluid temperature. If you are pairing it with a new engine, our Chevy LS3 engine guide and the GM LS V8 engines page are good places to start.
Two Typical 4L80E Jobs We See
2002 Silverado 2500HD, 6.0 Vortec, 4WD. The truck went into limp mode while towing a trailer. The connector was full of fluid and the clutches were burnt. A matching late-model 4WD 4L80E transmission for sale went in with a new cooler, and the truck went back to towing.
Express 3500 van, 6.0, 2WD. The fleet manager wanted the van back on the road quickly. Instead of waiting for a rebuild, they fitted a used unit from a lower-mileage van. Two days off the road instead of two weeks.
What a 4L80E Transmission for Sale Costs
Price depends on year, drive type, mileage and condition. Late 4WD units from 2001 to 2007 trucks tend to cost more than early 2WD units because demand is higher. A used 4L80E transmission for sale is normally far cheaper than a remanufactured unit, and a built performance transmission costs more again.
Shipping is the other big part of the cost. The 4L80E is heavy, so it goes by freight on a pallet. Our replacement engine cost article explains the same factors that affect a transmission price, including freight and labour.
Ask us for a quote and you get the transmission price, shipping cost and what is included in one reply.
What Comes With Our Transmission
Each 4L80E transmission for sale we ship includes:
- The complete transmission as removed from the donor vehicle
- Torque converter when available (we confirm this on the quote)
- Donor details and approximate mileage where known
- Photos on request
- Secure palletizing and strapping for freight
Read our used engine warranty page and our refund and returns policy before ordering so you know the terms.
Installing a Used 4L80E
- Flush the cooler and lines. Or replace the cooler. Old debris will kill a fresh transmission.
- Seat the converter. It should drop in fully as it engages the pump. A half-seated converter breaks the pump.
- Inspect the flexplate. Replace it if it is cracked or the bolt holes are worn.
- Clean and seal the connector. Check the external harness, and replace damaged plugs.
- Connect both speed sensors. A missing input or output signal puts the truck in limp mode.
- Fill and check. Fill, start the engine, cycle through the gears and check level hot.
- Reset adaptive values. Clear adapts with a scan tool so the computer relearns shift timing.
Even a perfect 4L80E transmission for sale can fail early if these steps are skipped, so share this list with your mechanic.
What Your Mechanic Should Check on Delivery Day
- The unit matches the description, year family and drive type
- No freight damage to the case, pan, tailhousing or connector
- Input and output shafts turn with normal play
- Converter included if it was quoted
Contact us before installation if anything does not look right.
Looking After It Afterwards
Change the fluid and filter more often than the book says if you tow, carry heavy loads or drive in hot weather. Every 30,000 to 50,000 miles is a sensible target for a used 4L80E transmission for sale that does real work. Keep the connector dry, check cooler lines for leaks and fix engine mount problems early.
Buying a 4L80E Transmission for Sale From Abroad
We ship to customers in North America, Latin America, Europe, Africa, Asia, the Middle East and Oceania. GM heavy-duty trucks, Suburbans and Hummer H1s were exported all over the world, and owners there need parts too. When you order a 4L80E transmission for sale from outside the USA:
- Send your VIN, engine, year and 2WD or 4WD.
- Tell us your nearest port or full delivery address.
- Ask your customs broker about duties and import rules before shipping.
- Allow for freight time. Our shipping policy explains how it works.
How to Order
- Browse our transmissions or contact us with your VIN.
- We confirm fitment and quote price and shipping.
- You pay by bank transfer and get an invoice and order confirmation by email.
- We palletize the transmission, ship it and send tracking.
You can call us on +1 (209) 733-0882. Please read our terms of service before ordering.
Related Transmissions and Engines
- 4L60E transmission for sale for light-duty GM trucks and SUVs
- 68RFE transmission for sale for Ram 6.7 Cummins trucks
- Allison 1000 transmission guide for Duramax trucks
- Duramax LB7 engine guide
- Used Chevy engines overview
- How to buy a used engine online
Browse everything in the shop.
Frequently Asked Questions
Will a 4L80E fit my 2001 Silverado 2500HD?
If your truck has a gas V8 and RPO MT1, yes. Diesel 2001-up trucks use the Allison instead. Send the VIN and we will check.
Can I swap a 4L80E in place of a TH400?
Yes, it is a common upgrade. You need a longer crossmember position or driveshaft change, and a controller to run the electronics.
Does the 4L80E transmission for sale include a torque converter?
Often yes. We confirm it on your quote.
How much power can a stock 4L80E handle?
It was rated around 440 lb-ft of engine torque from GM. Many people run more with a good converter and cooling, but for big power a built unit is safer.
What fluid does it use?
DEXRON VI automatic transmission fluid, about 13.5 quarts total depending on the setup.
Do you ship worldwide?
Yes, by freight to most countries.
How do I pay?
By bank transfer. You receive an invoice and order confirmation by email.
Get Your Heavy-Duty GM Working Again
A good 4L80E transmission for sale is one of the best ways to get a heavy-duty GM truck, van or swap project back on the road. Match it to your VIN, keep it cool, look after the wiring and it will keep pulling for a long time. When you are ready, visit the 4L80E transmission for sale page or send us your VIN.