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FRASER ENGINES - 8L90 Automatic Transmission Assembly

Premium Remanufactured 8L90 Transmission Assembly

Zero Mileage | OEM Specification Build | Direct Replacement

SKU NUMBER: FEF6T40-FA

Best Seller Popular Products

SALE PRICE: $4399.00

Core Deposit: $1200.00 (waivable 15 days)

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⚠️ This unit requires a returnable core (your old transmission). Fraser Engines will arrange free core pickup at no additional cost. The core deposit may be waived for up to 15 business days when the engine is shipped directly to a licensed repair facility. If the engine is shipped to a private residence, the core deposit must be paid upfront. 

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Shipping & Availability

📦 This unit is IN STOCK

 ⛟ Shipping is FREE to commercial address! $125.00 to a private residence.

🔥 Order before 3PM EST and receive your order in 2-3 business days! – some exclusions apply. 

Included Parts & Warranty

✔️ 3 Year / Unlimited Miles parts and labor 

✅ Torque Converter 

✅ Install Guide: 1

Tech Updates

• Fluid pump is fully detailed with resurfaced pump rotor mating surfaces and machined pump body mating surfaces to maintain correct fluid pressures.
• Late style stator support shaft with updated seal rings used exclusively in all units to eliminate seal leakage.
• Installed upgraded O.E. 38-element low sprag.
• Fully remanufactured torque converter is tested for leaks, lockup, concentricity, and balance. Upgrades exceed OE requirements and eliminate the possibility of front seal leaks, premature bushing wear, and vibration.
• Boost sleeves and oversized pr valve to restore pressure and prevent converter ballooning.
• Oversized AFL valve in valve body.
• Planetary covers removed and replaced for thorough cleaning.
• Tru-Flat qualification process applied to transmission case, valve body, pump, and channel plate prevent cross leaks and pressure losses.
• Every transmission is cold-and hot-tested using a proprietary dynamometer testing program that includes fully synthetic automatic transmission fluid and a filtration system.
• Testing and flushing of TEHCMS.
• New pressure switch films.

Description

Fraser Engines Remanufactured Transmission Quality Standards

Every Fraser Engines remanufactured transmission is built, tested, and validated to deliver dependable performance, long service life, and smooth operation under real-world driving conditions.

What’s Included & How We Ensure Quality

✔️ A remanufactured and improved torque converter is included with every transmission at no additional cost.

✔️ To prevent front seal leaks, vibration, and premature bushing wear, all torque converters are thoroughly tested for leak integrity, lock-up operation, concentricity, and balance.

✔️ Every fully remanufactured valve body receives complete system correction and recalibration, then is tested independently prior to installation.

✔️ All wear-prone valves are restored to stringent specifications and vacuum tested to verify proper sealing and operation.

✔️ Each remanufactured transmission undergoes hot, cold, load, and simulated road testing using our proprietary CARS® (Computer-Aided Road Simulation) dynamometer program, replicating real driving conditions before release.

Warranty You Can Trust

✔️ All Fraser Engines remanufactured transmissions are backed by an industry-leading, no-hassle nationwide warranty, providing real protection and peace of mind long after installation.

NO Fault Warranty Options (add them at checkout page if wanted)

What even is a NO FAULT Warranty and why would I need it if the engine already has a warranty for free? –Click to View Standard vs NFW protection breakdown

No-Fault Warranty Options

1-Year No-Fault Warranty

$99.00

  • One-time free replacement, no matter the cause of failure.
  • Unlimited miles during the 1-year term.
  • Labor covered at $50.00/hr (Mitchell or AllData book time).

2-Year No-Fault Warranty

$199.00

  • One-time free replacement within 2 years.
  • Unlimited miles during the term.
  • Labor covered at $50/hr (Mitchell or AllData book time).

3-Year No-Fault Warranty

$299.00

  • One-time free replacement within 3 years.
  • Unlimited miles during the term.
  • Labor covered at $50/hr (Mitchell or AllData book time).

4-Year No-Fault Warranty

$399.00

  • One-time free replacement within 4 years.
  • Unlimited miles during the term.
  • Labor covered at $99/hr (Mitchell or AllData book time).

5-Year No-Fault Elite

$499.00

  • Covers the full 5 years • one-time free replacement.
  • Unlimited miles during the term.
  • Labor covered at $99/hr (Mitchell or AllData book time).

Labor reimbursement uses published Mitchell or AllData times. One-time replacement applies per covered unit during the elected term.

Recommended Goodies to Bundle with your New Transmission

$99.95

Fraser Engines Premium Dexron® Transmission Fluid is specially formulated to protect and optimize your transmission during the most critical phase of operation—initial installation and early service life. Engineered to meet Dexron specifications, this high-performance automatic transmission fluid delivers superior lubrication, thermal stability, and friction control to ensure smooth shifting, long component life, and dependable performance.

Trusted by transmission builders and recommended by Fraser Engines technicians, this fluid helps prevent premature wear, overheating, and shift irregularities that can occur during startup and break-in of a newly installed transmission.

✔ Meets Dexron® performance specifications
✔ Promotes smooth, consistent shifting
✔ Reduces friction and internal wear
✔ Protects clutches, bands, and valve body components
✔ Helps maintain proper operating temperatures
✔ Ideal for newly installed or serviced automatic transmissions

Highly recommended for all applicable Fraser Engines transmission installations to protect your investment and ensure reliable performance from day one.

⚠️ Important Compatibility Notice
This transmission fluid is not compatible with all transmissions. Fluid type requirements vary by vehicle make, model, year, and transmission design. Always verify the correct transmission fluid specification for your application before installation. Use of an incorrect fluid may result in improper operation or damage. When in doubt, contact Fraser Engines for confirmation prior to use.

GM 8L90 Automatic Transmission Vehicle Fitments

Year(s) Make Model Engine Drivetrain / Notes
2014–2018ChevroletSilverado 15005.3L EcoTec3 V8RWD / 4WD
2014–2018GMCSierra 15005.3L EcoTec3 V8RWD / 4WD
2015–2020ChevroletTahoe / Suburban5.3L EcoTec3 V8RWD / 4WD
2015–2020GMCYukon / Yukon XL5.3L EcoTec3 V8RWD / 4WD
2015–2020CadillacEscalade / ESV5.3L EcoTec3 V8RWD / AWD
2014–2018ChevroletSilverado 15006.0L V8RWD / 4WD
2014–2018GMCSierra 15006.0L V8RWD / 4WD
2015–2020ChevroletTahoe / Suburban6.0L V8RWD / 4WD
2015–2020GMCYukon / Yukon XL6.0L V8RWD / 4WD
2015–2020CadillacEscalade / ESV6.0L V8RWD / AWD
2017–2024ChevroletCamaro SS / ZL16.2L V8RWD
2015–2019ChevroletCorvette (C7)6.2L V8RWD
2016–2019CadillacCTS-V6.2L Supercharged V8RWD
2020–presentCadillacCT5-V Blackwing6.2L Supercharged V8RWD
2015–2020ChevroletTahoe / Suburban5.3L / 6.0L V8RWD / 4WD
2015–2020GMCYukon / Yukon XL5.3L / 6.0L V8RWD / 4WD
2015–2020CadillacEscalade / ESV5.3L / 6.0L V8RWD / AWD

Important: The 8L90 is GM’s heavy-duty 8-speed automatic transmission designed for higher torque V8 engines. Fitment depends on drivetrain layout, engine calibration, axle ratio, and model year. Always verify by VIN and RPO codes before ordering.

Why Buy an 8L90 Transmission from Fraser Engines?

The GM 8L90 is a high-capacity, 8-speed automatic transmission engineered for modern V8 powertrains. At Fraser Engines, we don’t just replace 8L90 transmissions — we remanufacture and upgrade them to correct known OEM weaknesses and deliver long-term reliability under real-world driving conditions.

Built Stronger Than OEM

Every Fraser-supplied 8L90 transmission is fully torn down, inspected, and remanufactured using updated components and precision assembly processes. Wear-prone parts are replaced or upgraded to handle higher torque loads from 5.3L, 6.0L, and 6.2L GM engines.

Fully Remanufactured Torque Converter Included

✔ Upgraded, remanufactured torque converter included
✔ Leak-tested, balanced, and lock-up verified
✔ Helps eliminate shudder, vibration, and premature seal failure

Corrected Known 8L90 Issues

Fraser remanufacturing addresses common 8L90 problems, including:

  • Torque converter clutch shudder

  • Valve body wear and pressure loss

  • Shift flare and harsh shift complaints

  • Premature bushing and bearing wear

  • Heat-related fluid breakdown issues

Each unit is built to correct, not repeat, factory shortcomings.

Dynamometer Tested — Not Just Bench Tested

Every 8L90 transmission is:
✔ Hot tested
✔ Cold tested
✔ Load tested
✔ Road-simulated on a transmission dynamometer

This ensures proper shift timing, line pressure, and clutch engagement before it ever ships.

Plug-and-Play Confidence

  • Built to OEM fitment specifications

  • Correct calibrations based on application

  • Compatible with factory electronics and control modules

  • VIN-verified fitment support available

Industry-Leading Warranty

✔ Nationwide warranty coverage
✔ Parts & labor protection available
✔ No-hassle claims handled directly by Fraser
✔ Optional extended and no-fault coverage available

Trusted Since 1961

Fraser Engines has been rebuilding engines and transmissions for over 60 years. Our reputation is built on engineering expertise, not shortcuts — and every 8L90 we sell reflects that standard.

Bottom Line

If you’re replacing an 8L90 behind a 5.3L, 6.0L, or high-output V8, buying from Fraser Engines means:

✔ Corrected OEM flaws
✔ Fully tested, upgraded transmission
✔ Included torque converter
✔ Strong warranty support
✔ Proven remanufacturing expertise

That’s the Fraser difference.