4L65E

102465122A

StreetMonster Chevy 4L65E Transmission and Torque Converter

$2,367.90 USD

$2,631.00 USD
SALE 10% OFF
50794840162613
CD102465122A
Requires $500.00 USD Core Fee
HIGH DEMAND!

ORDER NOW AND WE'LL

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FREE SHIPPING

IF BUNDLED WITH FLUID and EXTEND! Covers One Way Only

PRODUCT OPTIONS
× 4L65E Comparison
Questions? Call Us 800-708-0087
Features
  • Master Overhaul Kit: Complete rebuild kit ensures reliability and long-lasting performance.
  • All New Electronics: Modernized components provide precise shifting and improved compatibility with today’s driving needs.
  • New Reverse Drum: Reinforced for greater durability and smoother operation in reverse gear.
  • .500 Boost Valve: Increases line pressure, improving clutch holding power and performance under load.
  • Increased 3-4 Clutch Capacity: Enhanced durability and torque-handling capability for high-stress applications.
  • Wide 2-4 Band: Reduces wear and increases holding power, ensuring consistent performance.
  • Shift Improvement Kit: Delivers smoother, faster, and more responsive shifts while reducing internal component wear.
  • Corvette 2nd Gear Servo: Boosts 2nd gear holding power for firmer, more reliable shifts under high torque conditions.
  • PREVENT TRANSMISSION FAILURE: Watch our step-by-step installation video https://monstertransmission.com/pages/how-to-properly-install-a-transmission
ABOUT THIS PRODUCT

Experience unmatched power and reliability with the StreetMonster 4L65E transmission—crafted for everyday drivers who demand strength and performance. Engineered with upgraded internals, this 4-speed automatic easily handles more horsepower and torque than the 4L60E, making it perfect for your high-performance daily driver or workhorse truck. Featuring premium components like a tow-and-go shift kit, enhanced pump, and heavy-duty torque converter, the StreetMonster ensures smooth, responsive shifts and long-lasting durability. Whether commuting or hauling, the 4L65E delivers dependable power you can count on.

FLUID AMOUNT

  • 11 Quarts Of Dexron VI Full Synthetic

INSTALL TIME

  • 9 Hours

WARRANTY

Note

  • 2 Year Warranty Unlimited Miles

NOTE

  • For 2007 Classic Body Style Only, If New Body Style See 4L70E
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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 2–4 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: 1 Year (Extendable to 4 Years with Extend)
  • StreetMonster: 2 Years (Extendable to 5 Years with Extend)
  • SportMonster: 3 Years (Extendable to 6 Years with Extend)
  • TrackMonster: 1 Year (Extendable to 4 Years with Extend)

Extend warranties are optional add-ons available during checkout.

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.

How do I know if I have a 4L60 vs a 4L65?

The easiest way to tell the difference is by checking your vehicle’s year and engine type:

  • In 1998, GM introduced the LS1 engine and began using the 4L65.
  • By 1999, trucks with 4.8L, 5.3L, or 6.0L LS engines came factory-equipped with the 4L65.
  • If your vehicle is 1998 or older and does not have an LS engine, it likely has a 4L60.

Tip: If your vehicle is from 1999+ and has an LS engine, use our 4L65 transmission for proper fitment.

Can the 4L65 handle a cammed or boosted LS engine?

Yes! Our upgraded 4L65 builds are ideal for cammed and even boosted LS-powered vehicles.

  • For moderate cams and street use, choose our StreetMonster 4L65 with a stall converter.
  • For setups making 450 HP or more, upgrade to our SportMonster or TrackMonster for maximum reliability and performance.

All units are dyno-tested.

Is the 4L65 stronger than the 4L60E?

Yes — the 4L65 is a stronger version of the 4L60E from the factory.

  • It features upgraded internal components including the input shaft, planetaries, and sun shell.
  • Designed specifically for LS-based applications and trucks from 1999+.
  • Our upgraded versions can handle over 600 HP, with the TrackMonster 4L65 rated for 1000 HP.

While both can be built strong, the 4L65 is the better platform for high-output LS builds.

Will I need to reflash my PCM after install?

No reflash or tuning is required for 4L60 or 4L65 replacements in factory applications.

  • Simply disconnect the battery during install and clear all DTC/fault codes before driving.
  • The vehicle’s PCM will relearn shift strategy automatically.
  • We include a full step-by-step guide in our Installation Manual

Proper code clearing and Installation is key to smooth operation and long-term performance.

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.