SportMonster includes no-cost 3-year Extend warranty

4L85E

102485220H

SportMonster Chevy 4L85E Transmission and Torque Converter 2WD

$3,999.00 USD

$4,199.00 USD
SALE 5% OFF
50801918214453
CD102485220H
Requires $500.00 USD Core Fee

SportMonster Included Protection

This unit includes a no-cost 3-year Extend warranty.

LOW STOCK ONLY 1 AVAILABLE

PRODUCT OPTIONS
Recommended Add-Ons
Add ATF and an external cooler for safer temps under load.
$3,999.00 USD
LOW STOCK — ONLY 1 AVAILABLE
3 Year Extend Warranty Included
Questions? Call Us 800-708-0087
Features
  • Heavy-duty torque capacity for towing, hauling, and performance demands
  • Reinforced components for unmatched durability and long-term reliability
  • Smooth, electronically controlled shifts for seamless performance
  • Overdrive and lockup torque converter for improved fuel economy
  • Perfect fit for GM trucks like Chevrolet Suburban, Silverado, and GMC Sierra
  • PREVENT TRANSMISSION FAILURE: Watch our step-by-step installation video https://monstertransmission.com/pages/how-to-properly-install-a-transmission
ABOUT THIS PRODUCT

Power through the toughest jobs with the StreetMonster 4L85E transmission, the ultimate 4-speed automatic built for heavy-duty trucks, SUVs, and high-performance beasts. Renowned for its legendary durability and high torque capacity, the 4L85E is engineered to dominate in towing, hauling, and high-powered applications. With a rugged design and reinforced internals, this transmission is your go-to for reliable, long-lasting performance under the most demanding conditions. Built to handle up to 750 horsepower and 700 lb-ft of torque, the 4L85E doesn’t just survive under heavy loads—it thrives. Featuring smooth, electronically controlled shifting and a lockup torque converter, it delivers efficient power and crisp performance while maximizing fuel economy. Whether hauling a heavy trailer, crushing off-road terrain, or taking on high-performance challenges, the Monster 4L85E delivers unmatched strength and reliability.

FLUID AMOUNT

  • 13.5 Quarts Of Dexron VI Full Synthetic

INSTALL TIME

  • 9 Hours

WARRANTY

Note

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

NOTE

  • While some 4L80 transmissions were available with a brake drum option, Monster Transmission does not build or supply brake drum equipped units.
Customer Reviews

Customer Reviews

Based on 1 review
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J
JT
Monster service

I did some research before ordering a transmission 4L85E from Monster. Monster was by far the best conversation with the most knowledgeable salesperson. I had a few concerns, and he addressed them all without sounding like he was putting on a sales job! I have not run this tranny and it will be a while before I do but, it came earlier than promised, arrived in great condition, the case looks really nice, and the paint job was done well, it's very green.... So far this has been a really good experience!

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: up to 6 Years (3 Year Manufacture, optional 2 or 3 Years from Extend)
  • StockMonster: up to 4 Years (1 Year Manufacture, optional 2 or 3 Years from Extend)
  • StreetMonster: up to 5 Years (2 Year Manufacture, optional 2 or 3 Years from Extend)
  • SportMonster: 6 Years (3 Year Manufacture, 3 Years from Extend included)
  • TrackMonster: 1 Year (1 Year Manufacture, Extend not available)

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

Is Shipping Cheaper if I Use a Commercial Address?

Yes — we offer a $299 Flat-Rate One-Way Shipping to any commercial Address or $364 to 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.