8L90

102890022T

RoadReady Chevy 8L90 Transmission and Torque Converter with Free Transmission Fluid

$4,399.00 USD

$4,699.00 USD
SALE 6% OFF
52089346687285
CD102890022T
Requires $1,500.00 USD Core Fee
HIGH DEMAND!

ORDER NOW AND WE'LL

PRIORITIZE YOUR SHIPMENT

PRODUCT OPTIONS
Recommended Add-Ons
Add a Cooler Bypass and an external cooler for safer temps under load.
$4,399.00 USD
HIGH DEMAND — ORDER TO PRIORITIZE YOUR SHIPMENT Free 3-Year Extend Warranty
Questions? Call Us 800-708-0087
Features
  • 8L90 Specific Fluid Included Reduces set up time and comes ready to install
  • Brand-New OE Torque Converter Included
  • New OE Internal Wiring Harness for reliable signal integrity
  • New OE Sensors Installed for accurate shifting and transmission operation
  • Redesigned Valve Body Accumulator to help eliminate wear-prone failure points
  • PREVENT TRANSMISSION FAILURE: Watch our step-by-step installation video https://monstertransmission.com/pages/how-to-properly-install-a-transmission
ABOUT THIS PRODUCT

Unlock the next level of performance with Monster’s 8L90 transmission—a modern 8-speed automatic built for strength, precision, and long-term durability. Featuring a brand-new OE torque converter, a redesigned valve body accumulator to reduce wear, new OE internal harness and sensors, and fluids included, this is the confident upgrade for smooth shifting and dependable power transfer.

WARRANTY

Note

  • 6 Year Warranty Unlimited Miles (3 Year Monster + 3 Year Extend)

NOTE

  • *For Stock/OEM replacement only. If your vehicle has any aftermarket upgrades such as a lift, larger tires, upgraded exhaust, throttle body, tune, or other performance enhancements. Contact us for more information.
  • This RoadReady unit is manufactured by a Monster-Approved vendor and is not built in-house by Monster Transmission.
Customer Reviews

Customer Reviews

Based on 1 review
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Q
Quinten
2018 GM 8L90E

Overall great unit. I have put approximately 500 miles on it and there hasn’t been any major issues. Came with all parts needed to complete the job and customer service was helpful. Would recommend to another person.

Frequently Asked
When Will My Transmission Ship?

In-stock transmissions usually ship the next business day.

Custom builds or out-of-stock units typically ship within 4–6 weeks.

Need it sooner? Call us — we can often make special arrangements.

What Is the Warranty?

We offer the most comprehensive coverage in the industry:

  • RoadReady: 6 Year (3 Year Manufacture, 3 Years from Extend)
  • StockMonster: 4 Year (1 Year Manufacture, 3 Years from Extend)
  • StreetMonster: 5 Years (2 Year Manufacture, 3 Years from Extend)
  • SportMonster: 6 Years (3 Year Manufacture, 3 Years from Extend)
  • TrackMonster: 4 Year (2 Year Manufacture, 3 Years from Extend)

Extend warranties are included on all Transmission Purchases read more HERE.

Is Shipping Cheaper if I Use a Commercial Address?

No — we offer a $299 Flat-Rate One-Way Shipping to any address, commercial or residential.

If you find a better rate, you're welcome to arrange your own shipping.

Does this Transmission include Fluid?

No — fluid must be purchased separately. We offer special discounted prices and even cheaper shipping options when you bundle with our fluid at checkout.

How do I Return my Old Transmission Core?

Returning your core is simple. Once you are ready to return your core, you can initiate the return process in one of two ways:

  • Fill out our Core Return Form (available online) using the button below.
  • Or call our Customer Service Team at 800-708-0087 to schedule your return freight pickup.

Please Note:

  • The customer is responsible for the return shipping cost.
  • A flat-rate fee of $299 will be deducted from your core refund to cover return freight and handling. If Round Trip Shipping is not Prepaid Upfront.
  • The core must be the same model and not cracked or damaged beyond rebuild.

Our goal is to make this process as seamless as possible — if you have questions about your core return, just give us a call.