The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.

HomeShop by DepartmentPerformanceTransmissionsTransmissionSuncoast 10L1000 Category 1 Transmission With Deep Pan (WITHOUT CONVERTER) 2020-2024 GM 2500/3500 Trucks

Suncoast 10L1000 Category 1 Transmission With Deep Pan (WITHOUT CONVERTER) 2020-2024 GM 2500/3500 Trucks

Thoroughbred Sku #: SUNC-SC-10L1000-CAT1-4WD-LC-CRE

Your Selected Vehicle Does Not Fit, Please Select a Vehicle

Select a Vehicle

Selected Vehicle

Select Vehicle

Year/Make/Model: {{year}} {{make.Name}} {{model.Name}} Edit

Item Options:

Prop 65:

WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

PAYMENT NOTE: If you choose Pay Core Later, from the Core option below, you will not be able to pay for this order using Affirm or PayPal

$7,995.00

+ $400.00 Shipping

* Core Exchange Option:

Terms & Conditions for Cores

Many stock replacement parts such as turbos, injectors, injection pumps, and high pressure oil pumps have a core charge that is associated with the new replacement part. You must return the old part to receive a refund on the core charge.

In some cases, the core is not reusable, such as in the event of a cracked case, at which point the core deposit would not be credited as the core component is not reusable.
Cores that have been disassembled and/or have missing and/or damaged major components will not receive full core credit.
Returned cores must be on a "like-for-like" basis, meaning that the returned core has the exact same fitment as the remanufactured component that was purchased. If the core is not "like-for-like," your core may not be eligible for return/credit.
You are responsible for core return shipping cost.

If you plan on returning your core you have two options.

Thoroughbred Diesel offers defer the upfront core charge when purchasing via credit card payment.

OPTION 1: You can accept the core charge, which means you will be charged for the part AND the core at time of purchase. You still have the option to send it back, and if you do, the core will be refunded back on the card used, presuming the core meets core criteria and the core is returned within 30 days from the time your order is received. If you return your core after 30 days you may refer to the Core Charge Timeline below as to how you will be refunded.

Core Charge Timeline

If the core is returned after 30 days, 90% of the core will be refunded.
If the core is returned after 60 days, 70% of the core will be refunded.
If the core is returned after 90 days, 50% of the core will be refunded.
After 6 months cores will be accepted at Thoroughbred’s discretion.

OPTION 2: You can defer the core charge. If you defer, you will not be charged for the core at the time of purchase. You will have 21 days from the time your order is received to send the core back. If the core is not received within the 21 days, your credit card will be charged for the core amount on your order. If you return your core after 21 days, you may refer to the Core Charge Timeline below as to how you will be refunded. When Core deferral (Pay Core Charge Later) is limited to payment by credit card only. ***When using PayPal or Affirm as your method of payment “Core Deferral (Pay Core Charge Later)” is not available. The core must be paid at time of purchase. ***

Core Charge Timeline

If the core is returned after 21 days, 90% of the core will be refunded.
If the core is returned after 60 days, 70% of the core will be refunded.
If the core is returned after 90 days, 50% of the core will be refunded.
After 6 months cores will be accepted at Thoroughbred’s discretion.

Core Return Procedure

Please keep all original packaging of your new item to be used for the core return.
Drain all fluids: oil, fuel, etc. out of the core before it is returned.
Place any plastic plugs or caps received on the new item back onto the core.
To insure UPS, Fed Ex, or USPS will not reject the package due to fuel or oil leakage, please wrap the core in a plastic garbage bag.
Place core inside the box.
If core return paperwork was inside the box, please complete the form and send back with the core.
Please provide a tracking number to [email protected]. Without a confirmed tracking number we cannot guarantee your core refund
If you have questions please call our core department 859-737-4966 ext. 5

I have read and I accept the terms and conditions.

Applications:

View All applications

VERIFY VEHICLE FIT

QTY:

Product Details
Reviews
Questions & Answers

Product Details

Product Name:Suncoast 10L1000 Category 1 Transmission With Deep Pan 2020-2024 GM 2500/3500 Trucks
Manufacturer: Suncoast
Manufacturer Part #: SC-10L1000-CAT1-4WD-LC
Thoroughbred Diesel Part #: SUNC-SC-10L1000-CAT1-4WD-LC
Fitment Notes: 2020-2024 GM 2500/3500 Duramax

The 10L1000 Category 1 Transmission

Enter the awe-inspiring Allison 10L1000, a marvel of engineering born from a groundbreaking collaboration between Allison and Ford. This transmission redefines the very essence of its predecessor, the Allison 1000, boasting a design so revolutionary that it transcends its lineage. It's not just a transmission; it's a symphony of power and precision.

Introducing the SunCoast 10L1000 Category 1 Transmission, engineered to be a reliable upgrade over factory options, especially for heavy-duty work environments. We've focused on addressing common issues encountered in demanding scenarios to ensure durability and performance when it matters most.

With the SunCoast 10L1000 upgraded transmission assembly, you can expect improvements in areas like durability, torque handling, and overall reliability. Whether you're hauling heavy loads, towing, or navigating rough terrain, this transmission is built to handle the rigors of tough jobs without skipping a beat.

Our design enhancements mean fewer breakdowns and less downtime, translating to increased productivity and lower maintenance costs for your vehicle. Plus, the SunCoast 10L1000 is designed for easy installation, minimizing hassle, and maximizing uptime.

Upgrade to the SunCoast 10L1000 transmission and experience peace of mind knowing your vehicle is equipped to handle the toughest challenges your work environment throws its way. It's a practical solution that delivers real-world benefits for your business or personal use.

The Rebuilding Process

Experience the SunCoast 10L1000 transmission rebuild process—a blend of precision and practicality that elevates reliability to new heights. We start by disassembling the transmission and removing all worn "soft parts" to make room for a fresh start.

Our specialized hot solvent wash tank, heated to a robust 198 degrees, becomes the gateway to cleanliness as casing and housings undergo thorough cleansing. This step ensures a pristine foundation for the transmission's revival.

As the components emerge, they face scrutiny from our skilled technicians. Hard parts undergo meticulous inspection, with any signs of wear or damage identified and addressed. Only those fit for duty proceed to the next phase.

The casing receives special attention, with every nook and cranny inspected for flaws or fractures. This critical step ensures structural integrity, safeguarding against future issues.

What emerges from this process is not just a transmission, but a testament to reliability and performance. With the SunCoast 10L1000, you're not just getting a product—you're investing in peace of mind and dependability for the road ahead.

Transmission Includes:

Raybestos Powertrain GPZ Frictions
Raybestos Powertrain Steels
10L1000 Transmission Overhaul Kit
Pan Filter
10L1000 Deep Cast Aluminum Pan (4 quarts over stock)
New OEM CDF drum assembly
Testing and recalibration of valve body assembly

Raybestos Frictions & Steels

Raybestos Powertrain GPZ friction clutch plates greatly increase transmission performance and durability. This state-of-the-art friction material far exceeds OE material to withstand high stress, high temperatures, and repeated cycling. GPZ's outstanding performance benefits are perfect for heavy-duty vehicles and high-stress driving. Testing of GPZ revolutionary friction material shows that it outperforms OE materials by as much as 20%.

Raybestos Powertrain steel clutch plates are high-quality, application-engineered products at a price you can afford. Manufactured with attention to critical tolerances and quality control, our steel plates meet or exceed OE specifications and have a superior surface finish that supplies a greater apply area and friction clutch life. Raybestos steel plates give better shift performance and clutch durability, lowering noise and shudder, and extending the life of your transmission.

Features & Benefits

Better shift performance and clutch durability
Enhanced shift feel
Withstands high horsepower
Greater torque capacity
Maintains piston travel
Optimum performance
Higher heat resistance
Made In USA
OE thickness for maximum heat sink
Superior surface finish for greater apply area and friction clutch life
Meets or exceeds OE specifications for flatness and parallelism
Flawless fit without binding

The Deep Pan

Number of Bolts: 16 bolts (18 holes, 16 bolt holes, and 2 holes to locate gasket)

Volume: 4 quarts over stock

Dimensions: At deepest area, PML pan is 7 inches; stock pan is 4.3 inches

This new deep pan is a designed and manufactured 10L1000 Allison transmission pan for 2020 and newer Duramax trucks. The design focuses on maintaining the general shape of the OEM pan while adding extra capacity and a finned bottom for heat dissipation.

Benefits of Deep Pan Design

Extra capacity
Finned to increase surface area for heat dissipation
Drain and magnetic drain plug
Thick walls and gasket flange
Heavy duty construction
Shape similar to OEM pan to replicate fluid flow and dynamics of OEM pan
Deep sump middle design avoids clearance issues with any cross-frame members or exhaust packages

Suncoast Transmission Features:

Better shift performance and clutch durability
Enhanced shift feel
Withstands high horsepower
Greater torque capacity
Maintains piston travel
Optimum performance
Higher heat resistance
Made In USA
OE thickness for maximum heat sink
Superior surface finish for greater apply area and friction clutch life
Meets or exceeds OE specifications for flatness and parallelism
Flawless fit without binding
For more information on Suncoast call us at 1-859-737-4966.

Reviews

Submit a question

There are no Questions to display

Diesel Performance Products & Parts

Diesel Truck Stock Replacement Parts | OEM Parts

Tractor Parts | Tractor Injectors, Injection Pumps, Turbos

Custom Truck Accessories - Tonneau Covers, Nerf Bars & More

Gooseneck & Fifth Wheel Hitches | Truck Towing Products

Thoroughbred Diesel Shirts, Hats, License Plates