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)
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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:

  • 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.