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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.
Note
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.
We offer the most comprehensive coverage in the industry:
Extend warranties are included on all Transmission Purchases read more HERE.
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.
No — fluid must be purchased separately. We offer special discounted prices and even cheaper shipping options when you bundle with our fluid at checkout.
Returning your core is simple. Once you are ready to return your core, you can initiate the return process in one of two ways:
Please Note:
Our goal is to make this process as seamless as possible — if you have questions about your core return, just give us a call.