Used 4L80E Transmission for Sale | OEM Used GM Heavy-Duty 4-Speed Automatic with Overdrive (TH400 Successor)
$800.00
At a Glance
- Condition: OEM used, all 4 forward gears and reverse function tested
- Availability: In stock, 2WD and 4WD configurations available
- Shipping: Free shipping to all 50 states via freight pallet, 5 to 10 business days
- All 4 forward gears and reverse function tested
- Lockup torque converter operation verified
- Configuration confirmed (2WD vs 4WD)
- Bellhousing pattern confirmed (gas vs diesel bolt pattern)
- Output shaft spline count documented
- Donor application documented (Silverado HD, Hummer H1, Express, etc.)
- 100% fitment verified before every order ships
- Backed by a 15 day replacement warranty against internal defects
Description
About the 4L80E Transmission
The 4L80E transmission is for sale at Part Nests, a top-notch heavy-duty 4-speed automatic from General Motors. This is the perfect transmission if you are on the hunt for a reliable and cost-effective replacement for your Silverado HD, Sierra HD, Suburban 2500, Hummer H1, or any GM heavy-duty truck application. The 4L80E is also a popular choice for performance V8 swap projects requiring an automatic transmission that can handle big-block torque.
The TH400 Heritage
The 4L80E is essentially the electronic-control evolution of the legendary GM Turbo-Hydramatic 400 (TH400) gearbox. The TH400 was introduced in 1964 and powered GM heavy-duty trucks, Cadillacs, and performance vehicles for nearly three decades. The 4L80E retains the TH400 robust mechanical architecture (dual-stage planetary gear set, hardened steel internals, deep transmission case) while adding modern electronic shift control and lockup torque converter for fuel economy and emissions compliance. This means the 4L80E inherits the TH400 legendary durability while adding modern overdrive and computer control.
Why Choose a Used 4L80E Transmission
The 4L80E transmission for sale is renowned for its power and reliability, making it a favorite among automotive enthusiasts and professionals alike. Here are some key reasons to consider this transmission:
- Durability: Built to handle high horsepower and torque, with stock ratings of 440 lb-ft and performance-built variants exceeding 885 lb-ft
- Performance: Known for its robust nature and ability to take abuse without failure
- Versatility: Compatible with a wide range of GM vehicles, available in both 2WD and 4×4 configurations
- Cost-Effective: A used unit provides great value for money without compromising on quality
- Upgradable: Strong aftermarket support with valve body modifications, billet hard parts, and performance torque converters available
- In-Stock and Ready to Ship: Fast shipping ensures you get your transmission quickly
The 4L80E Transmission Fits These GM Vehicles:
- Chevrolet Silverado 2500 / 3500 (1991 onward, including HD trim)
- GMC Sierra 2500 / 3500 (1991 onward, including HD trim)
- Chevrolet Suburban 2500 (heavy-duty trim)
- GMC Yukon XL 2500 (heavy-duty trim)
- Chevrolet Express 2500 / 3500 (full-size cargo van)
- GMC Savana 2500 / 3500 (full-size cargo van)
- Chevrolet Kodiak C4500 / C5500 (medium-duty truck)
- GMC TopKick C4500 / C5500 (medium-duty truck)
- Hummer H1 (1992 to 2006, with various engines)
- GM Medium-Duty Commercial Vehicles
Engine Pairings
The 4L80E is compatible with a wide range of GM engines:
| Detail | Description |
|---|---|
| 5.7L V8 (350 cubic inch) | L31 Vortec 5700, the legendary GM small-block in countless heavy-duty trucks |
| 6.0L V8 (366 cubic inch) | LQ4 / LQ9 Vortec 6000, GM Gen IV LS family |
| 6.2L V8 Diesel | Detroit / Olds 6.2L diesel (older heavy-duty applications) |
| 6.5L V8 Diesel | Detroit Diesel 6.5L (1992-2002 GM heavy-duty diesel) |
| 6.6L V8 Duramax Diesel | LB7 (2001-2004), LLY (2004-2006), LBZ (2006-2007), LMM (2007-2010), and select later Duramax variants paired with 4L80E |
| 7.4L V8 (454 cubic inch) | L19 / L29 Vortec 7400, the legendary big-block 454 |
| 8.1L V8 | L18 Vortec 8100, GM’s largest gasoline V8 (2001-2009 heavy-duty applications) |
| 7.8L I6 Diesel | Used in some larger commercial vehicles and Kodiak / TopKick chassis |
Signs You Need a Replacement 4L80E
- Slipping in any forward gear or reverse under load
- Failure to engage 4th gear (overdrive)
- Failure of the lockup torque converter to engage
- Hard or harsh shifting that ECM diagnostic codes confirm is mechanical
- Fluid leaks at the valve body, output shaft, pump area, or rear seal
- Burnt or contaminated transmission fluid (smell, color, debris)
- Code P1870 (TCC slip excessive) or other 4L80E-specific TCM codes
- Donor truck has been totaled and the transmission is being moved
Common 4L80E Maintenance Considerations
- Fluid changes: Every 30,000 to 50,000 miles for normal duty; more frequently for towing, trailering, or performance applications
- Filter and pan gasket: Replace at every fluid change. Use deep transmission pan with extra fluid capacity for towing applications.
- Lockup torque converter clutch (TCC): TCC clutch wear is a documented 4L80E concern at high mileage.
- Internal valve body wear: Performance valve body upgrades (TransGo, Sonnax) are popular for trucks doing heavy towing or performance applications.
Condition and Quality Assurance
All our used 4L80E transmissions for sale undergo rigorous testing and inspection processes. We ensure they meet high standards of performance and durability.
What Ships and What Does Not
| Item | Details |
|---|---|
| INCLUDED | Complete 4L80E transmission case with internal valve body, gears, electronic shift mechanism, transmission control solenoids, all internal hard parts. Lockup torque converter typically included from donor. |
| NOT INCLUDED | TCM (Transmission Control Module), driveshaft, transmission mount, shift cable / linkage, dipstick assembly, external cooler lines, transmission cooler, flexplate (sold separately if needed). |
| Fluids | Drained before shipping. Refill with Dexron III ATF (or modern Dexron VI as cross-compatible replacement). Capacity 17.5 quarts. |
| Core Note | No core charge. You are not required to return your old transmission. |
Vehicle Compatibility
The 4L80E fits the following GM vehicles. Tell us your year and chassis, and we ship the matching configuration:
| Vehicle | Compatibility |
|---|---|
| Chevrolet Silverado 2500 / 3500 | 1991 to 2007 GMT400 / GMT800 platforms (including HD trim) |
| GMC Sierra 2500 / 3500 | 1991 to 2007 GMT400 / GMT800 platforms (including HD trim) |
| Chevrolet Suburban 2500 | 1992 to 2014 (heavy-duty trim with 8.1L V8) |
| GMC Yukon XL 2500 | 2000 to 2014 (heavy-duty trim) |
| Chevrolet Express 2500 / 3500 | 1996 onward (full-size cargo van) |
| GMC Savana 2500 / 3500 | 1996 onward (full-size cargo van) |
| Chevrolet Kodiak C4500 / C5500 | 2003 to 2009 (medium-duty truck) |
| GMC TopKick C4500 / C5500 | 2003 to 2009 (medium-duty truck) |
| Hummer H1 | 1992 to 2006 (with 6.5L Detroit Diesel and various other engine options) |
| GM Medium-Duty Commercial Vehicles | Various 1991 onward |
Configuration variations include 2WD and 4×4, and gas-pattern or diesel-pattern bellhousing. Confirm before ordering.
Inspection Workflow
Every used 4L80E transmission we ship goes through this process:
- All 4 forward gears function tested
- Reverse gear function verified
- Lockup torque converter clutch (TCC) operation verified
- Visual inspection of case for cracks (bellhousing area, tail, mounting surfaces)
- Output shaft inspected for wear or scoring
- Pan and valve body fluid inspected for debris and burning indicators
- Configuration documented (2WD vs 4WD, gas vs diesel bellhousing)
- Donor application photographed and documented
- Approximate mileage / hours documented when verifiable
Why Buy From Part Nests
- All 4 forward gears and reverse function tested before shipping
- Lockup torque converter operation verified
- 2WD vs 4WD configuration confirmed for chassis compatibility
- Bellhousing pattern confirmed (gas vs diesel)
- Output shaft spline count documented for transfer case mating
- Donor application documented (Silverado HD, Sierra HD, Hummer H1, etc.)
- Free freight pallet delivery to all 50 states
- 15 day replacement warranty on internal defects
- GM 4L80E experienced support team on the phone with knowledge of TH400 architecture and 4L80E differences
- Call (240) 306-7051 to confirm 2WD / 4WD configuration, gas vs diesel bellhousing, output shaft spline count, engine pairing, and donor application before ordering
15 Day Replacement Warranty
Every used 4L80E transmission purchased through Part Nests carries a 15 day replacement warranty starting on the delivery date.
What Is Covered
- Internal defects already present when the transmission arrives
- Gear or shaft failures within 15 days from installation
- Lockup torque converter failures within 15 days from installation (where TCC was documented as functional at shipping)
- Valve body or electronic shift mechanism failures within 15 days from installation
- Loss of any forward gear or reverse within 15 days from installation
- Case crack failures not disclosed at shipping
- Incorrect configuration shipped (2WD vs 4WD, gas vs diesel bellhousing) due to an error on our end
What Is Not Covered
- Damage caused during installation
- Damage from operating with incorrect transmission fluid (Dexron III, or Dexron VI as cross-compatible replacement)
- Damage from neglected fluid maintenance (filter and pan gasket replacement required at every fluid change)
- Damage from operating beyond the stock 440 lb-ft input torque rating without performance internals
- Damage from incorrect bellhousing or flexplate alignment
- Damage from incorrect cooler line installation (transmission cooler required for sustained operation, particularly with towing)
- External components (TCM, driveshaft, transmission mount, shift cable / linkage, dipstick, external cooler lines, transmission cooler, flexplate) unless itemized
- Labor expenses of any kind
To start a warranty claim, reach us within 15 days of delivery at (855) 634-4447.
- All 4 Forward Gears Tested: Plus reverse function verified before shipping
- Lockup TCC Verified: Torque converter clutch operation confirmed
- 2WD / 4WD Configuration Documented: Output shaft spline count captured
- Gas / Diesel Bellhousing Confirmed: Engine compatibility verified before shipping
- TH400 Architecture Heritage: Electronic evolution of the legendary GM TH400
- 15 Day Replacement Cover: Internal defects protected from delivery onward
Additional information
| type | Automatic Transmission |
|---|---|
| model | 4L80E |
| maker | General Motors |
| speeds | 4 forward gears with overdrive (4th = 0.75:1 OD) + Reverse |
| torque-capacity | 440 lb-ft to 885 lb-ft |
| overall-length | 26.4 inches |
| fluid-capacity | 17.5 quarts |
The 4L80E is the electronic-control evolution of the GM Turbo-Hydramatic 400 (TH400). The TH400 was introduced in 1964 and powered GM heavy-duty trucks, Cadillacs, and high-performance vehicles for nearly three decades. The 4L80E retains the TH400 robust mechanical architecture: dual-stage planetary gear set, hardened steel internals, deep transmission case, and the same overall envelope. The 4L80E adds modern features that the TH400 lacked: electronic shift control via TCM, lockup torque converter clutch for fuel economy, overdrive 4th gear, and modern emissions integration. The 4L80E inherits the TH400 legendary durability while adding modern overdrive and computer control.
440 lb-ft stock, 885-plus lb-ft performance-built. The stock 4L80E is factory rated at 440 lb-ft of input torque, suitable for GM heavy-duty truck applications including the 7.4L 454 big-block and 8.1L Vortec 8100 V8. With aftermarket performance modifications (valve body upgrades from TransGo or Sonnax, billet input / output shafts, performance torque converter, deep aluminum transmission pan with extra fluid), the 4L80E reliably handles 885-plus lb-ft and has been documented in built form supporting over 1,000 lb-ft. The TH400 architecture provides substantial structural headroom for performance upgrades.
Wide range of GM engines from 5.7L gas to 6.6L Duramax diesel. The 4L80E was factory-paired with: 5.7L V8 350 L31 Vortec 5700 (the legendary small-block in countless heavy-duty trucks), 6.0L V8 LQ4 / LQ9 Vortec 6000 (Gen IV LS family), 6.2L V8 Detroit / Olds diesel (older heavy-duty), 6.5L V8 Detroit Diesel (1992-2002 GM heavy-duty diesel including Hummer H1), 6.6L V8 Duramax diesel (LB7 2001-2004, LLY 2004-2006, LBZ 2006-2007, LMM 2007-2010), 7.4L V8 454 L19 / L29 Vortec 7400 (legendary big-block), 8.1L V8 L18 Vortec 8100 (GM's largest gasoline V8), and 7.8L I6 diesel (larger commercial / Kodiak / TopKick). Bellhousing pattern differs between gas and diesel engines; confirm before ordering.
Output shaft length and tail housing configuration. The 2WD 4L80E has a longer output shaft and a fixed tail housing designed to mate to a driveshaft going directly to the rear axle. The 4WD 4L80E has a shorter output shaft and a mounting flange designed to mate to a transfer case (NP243, NP246, NP261, NP263, or similar GM transfer case depending on chassis). The two configurations are NOT directly interchangeable without changing the output shaft and tail housing. Tell us your chassis and we will ship the correct 2WD or 4WD configuration. We document output shaft spline count (27 spline or 32 spline) for transfer case mating verification.
Bolt pattern and dowel pin alignment differ. GM heavy-duty engines use two distinct bellhousing patterns: the gas pattern (used with 5.7L 350, 6.0L LQ4 / LQ9, 7.4L 454, 8.1L Vortec 8100) and the diesel pattern (used with 6.2L / 6.5L Detroit diesel and 6.6L Duramax). The bolt count, bolt pattern, and dowel pin alignment differ between the two patterns. A gas-bellhousing 4L80E does NOT mate to a diesel block (and vice versa) without an adapter plate. We confirm the bellhousing pattern on every 4L80E we ship and match it to your engine application.
TCC slip excessive. P1870 is a 4L80E-specific GM diagnostic trouble code indicating that the Torque Converter Clutch (TCC) is slipping more than the TCM expects. The code typically appears as the TCC clutch wears at high mileage, causing converter slip during the lockup phase (typically in 3rd or 4th gear at cruising speed). P1870 is one of the most common high-mileage 4L80E concerns. Remedies range from valve body service (Sonnax TCC isolator valve), to complete TCC clutch replacement, to torque converter replacement. We test TCC operation on every 4L80E before shipping and disclose any concerns.
Dexron III, or Dexron VI as cross-compatible replacement. The 4L80E was originally specified with Dexron III ATF. Modern Dexron VI is cross-compatible and can be used as a replacement in 4L80E applications without issues; Dexron VI has slightly different friction modifiers but performs well in 4L80E service. Total capacity is approximately 17.5 quarts (varies slightly by torque converter and external cooler size). Filter and pan gasket should be replaced at every fluid change (every 30,000 to 50,000 miles for normal duty; more frequently for towing or performance applications). For heavy towing, install a deep aluminum transmission pan with extra fluid capacity.
No. There is no core return required.
2 reviews for Used 4L80E Transmission for Sale | OEM Used GM Heavy-Duty 4-Speed Automatic with Overdrive (TH400 Successor)
Related products
Roscoe T. –
Got a 4WD 4L80E for a 2003 Silverado 2500HD with 8.1L Vortec 8100 replacement. All 4 forward gears and reverse function tested, lockup TCC operation verified clean, 4WD output configuration confirmed with 32-spline output shaft for the NP263 transfer case. Honest pre-purchase information about the TH400 architectural heritage and the 8.1L gas bellhousing pattern matching.
Petra J. –
Sourced a 2WD 4L80E for a 6.5L Detroit Diesel-powered Hummer H1 replacement. Diesel bellhousing pattern correctly confirmed (NOT the gas pattern), 2WD configuration with the longer output shaft documented, all gears tested. Honest pre-purchase information about the Dexron III / VI fluid spec and the recommended deep transmission pan for the H1’s heavy duty cycle.