ALLISON

102100121Y

StreetMonster Chevy Allison 1000 Transmission & Torque Converter

$5,099.00 USD

$5,368.00 USD
SALE 5% OFF
50801903927605
CD102100140A
Requires $2,000.00 USD Core Fee
LOW STOCK ONLY 1 AVAILABLE

Looking for a higher stall converter? Check out the SportMonster.
PRODUCT OPTIONS
$5,099.00 USD
LOW STOCK — ONLY 1 AVAILABLE
Questions? Call Us 800-708-0087
Features
  • High Energy Frictions: Utilization of high-energy friction materials improves heat resistance and longevity.
  • Revised Oil Circuits: Modifications to oil circuits enhance lubrication and cooling efficiency.
  • New A & B Trim Valves: Installation of new A & B trim valves delivers full line pressure to the clutches, ensuring consistent engagement.
  • Aluminum Transmission Pan: Each transmission comes with a heavy-duty aluminum transmission pan.
  • Dyno Tested: Every transmission undergoes rigorous dynamometer testing to ensure performance and reliability.
  • PREVENT TRANSMISSION FAILURE: Watch our step-by-step installation video https://monstertransmission.com/pages/how-to-properly-install-a-transmission
ABOUT THIS PRODUCT

Power your truck with the StreetMonster Allison 1000 transmission—a legendary 5- or 6-speed automatic designed for performance and reliability. Renowned for its reliability and smooth performance, the Allison 1000 is an excellent choice for everyday driving, light towing, and standard diesel applications. Engineered to handle tough demands, it features advanced electronic controls, seamless shifts, and reinforced internal components to deliver long-lasting, consistent performance.

This StreetMonster Transmission is exclusively manufactured to Monster Transmission’s exact specifications by our strategic manufacturing partner, BD Diesel. These units are not built in-house by Monster Transmission and are not available through any other vendor

FLUID AMOUNT

  • 18 Quarts Of Dexron VI Full Synthetic

INSTALL TIME

  • 9 Hours

WARRANTY

Note

  • 3 Year Warranty Unlimited Miles

NOTE

  • Built exclusively to Monster Transmission specifications by BD Diesel. Not assembled in-house or sold by other vendors.
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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:

  • 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?

No — we offer a $364 Flat-Rate One-Way Shipping to any Address.

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 your old transmission is ready for pickup, you can start the return process online or call our Customer Service Team.

  • Use our Core Return Form to submit your pickup request.
  • Or call 800-708-0087 and our team can help schedule your return freight pickup.

Please Note:

  • The customer is responsible for return shipping.
  • A flat-rate fee of $364 will be deducted from your core refund to cover return freight and handling unless round-trip shipping was prepaid upfront.
  • The returned core must be the same model and not cracked or damaged beyond rebuild.

Our goal is to make this process as easy as possible. If you have questions about your core return, give us a call and we’ll help.

Start Core Return