Description
Product Overview
The ATS Diesel Performance Automatic Transmissions 309-815-4308-FSMF is a diesel automatic transmission package listed as an ATS Stage 1 Allison LCT1000 Transmission Package 4WD w/ PTO 2006–2007 6.6L LLY / LBZ / LMM Duramax. It is built for compatible Duramax diesel applications where correct transmission matching, drivetrain compatibility, and PTO configuration are important before purchase.
This package is identified by Manufacturer’s Part Number 309-815-4308-FSMF and Summit Racing Part Number APF-309-815-4308. These product identifiers help Duramax truck owners, diesel mechanics, fleet maintenance teams, towing operators, repair shops, service departments, and drivetrain specialists verify the correct ATS transmission package before ordering.
The application description identifies this product as an Allison LCT1000 transmission package for 4WD 2006–2007 6.6L Duramax applications with PTO. It is intended for compatible LLY, LBZ, and LMM Duramax engine applications, making engine-code confirmation an important step before purchase.
As a Stage 1 transmission package, this product is suitable for buyers who need a quality replacement or upgrade foundation for compatible Duramax trucks. It should be matched carefully to the vehicle’s year, drivetrain, engine code, PTO requirement, original transmission type, electronics, cooler setup, and installation needs.
The provided product details do not specify torque converter inclusion, flexplate inclusion, transmission controller inclusion, wiring harness inclusion, cooler inclusion, fluid inclusion, dipstick inclusion, pan style, case material, gear count, lockup compatibility, remanufactured status, or quantity. These specifications should be confirmed before purchase.
Fitment and Application Details
The ATS Diesel Performance 309-815-4308-FSMF Stage 1 Allison LCT1000 transmission package should be matched carefully to the intended Duramax application before ordering. Automatic transmission fitment can vary by vehicle year, make, model, engine code, drivetrain, PTO requirement, original transmission family, electronics, converter setup, cooler routing, transfer case connection, mount location, and installation hardware.
This product is listed for 4WD 2006–2007 6.6L Duramax diesel applications with LLY, LBZ, and LMM engine codes and PTO configuration. Buyers should confirm the exact truck model, original transmission, engine code, drivetrain, and PTO requirement before purchase.
Important fitment details to verify include vehicle year, make, model, engine size, LLY compatibility, LBZ compatibility, LMM compatibility, 6.6L Duramax application, Allison LCT1000 compatibility, 4WD drivetrain, PTO configuration, torque converter requirements, flexplate compatibility, converter bolt pattern, crankshaft pilot fitment, transmission mount location, crossmember position, transfer case compatibility, driveshaft/yoke setup, cooler line routing, electrical connector compatibility, sensor compatibility, control module requirements, fluid specifications, and installation hardware.
Because this package is listed with PTO, buyers should confirm PTO opening, PTO provisions, PTO use requirements, and compatibility with any auxiliary equipment before ordering.
The exact included components should be confirmed before purchase. Buyers should verify whether the package includes the torque converter, flexplate, controller, wiring harness, transmission cooler, cooler lines, fluid, dipstick, sensors, mounts, or other vehicle-specific installation parts.
For a complete installation, additional parts may be required, including a torque converter, flexplate, transmission cooler, cooler lines, transmission fluid, dipstick, wiring or electrical components, sensors, transmission mount, transfer case components, driveshaft/yoke components, seals, and installation hardware.
Build Quality and Reliability
The ATS Diesel Performance Automatic Transmissions 309-815-4308-FSMF is built for compatible Duramax diesel applications where drivetrain dependability, correct fitment, and transmission support matter. Diesel trucks equipped with the Allison LCT1000 transmission are often used for towing, hauling, work duty, fleet service, and long-distance driving, making proper transmission selection important.
As an ATS Stage 1 Allison LCT1000 transmission package, this product is positioned for buyers who need a reliable transmission solution for compatible 4WD Duramax trucks. The Stage 1 designation makes it relevant for owners and installers looking for an ATS transmission package matched to a specific Duramax application.
The 2006–2007 6.6L Duramax application range gives this package clear relevance for trucks using compatible LLY, LBZ, or LMM engine configurations. Because Duramax transmission fitment can vary across engine codes and vehicle configurations, confirming the original transmission and vehicle data before ordering is essential.
The PTO detail is especially important for work trucks, fleet vehicles, service bodies, and auxiliary-equipment applications. Buyers should confirm the PTO requirement and related hardware before installation.
When properly matched to the vehicle and installed with the correct supporting components, this ATS transmission package can serve as a dependable foundation for compatible Duramax drivetrain repair, replacement, or upgrade work.
What Makes This Transmission Package a Strong Choice
The ATS Diesel Performance 309-815-4308-FSMF automatic transmission package is a strong choice for buyers who need a Stage 1 Allison LCT1000 transmission package for compatible 4WD 2006–2007 6.6L Duramax applications.
The listed compatibility with LLY, LBZ, and LMM Duramax applications makes this package relevant for buyers searching by engine code.
The Allison LCT1000 transmission family is an important diesel truck drivetrain platform, making part-number and application confirmation essential before ordering.
The 4WD application detail helps buyers and installers narrow fitment to the correct drivetrain configuration.
The PTO listing is an important feature for work trucks and auxiliary-equipment applications that require PTO compatibility.
The exact 309-815-4308-FSMF manufacturer part number and APF-309-815-4308 Summit Racing part number support accurate product identification and ordering.
Because included components are not specified in the provided details, this package should be ordered after confirming all required supporting parts and installation needs.
Ideal Buyers and Use Cases
The ATS Diesel Performance Automatic Transmissions 309-815-4308-FSMF is ideal for Duramax truck owners, diesel mechanics, repair shops, fleet service teams, towing operators, work-truck builders, maintenance departments, service departments, and drivetrain specialists who need a compatible Allison LCT1000 automatic transmission package.
It is suitable for compatible 4WD 2006–2007 6.6L Duramax applications using LLY, LBZ, or LMM engine configurations and requiring a PTO-compatible transmission package.
This product is useful for trucks used for towing, hauling, fleet work, service-body applications, work-truck duty, long-distance driving, transmission replacement, drivetrain service, or PTO-supported auxiliary equipment use.
It is also a practical choice for professional installers confirming required supporting components such as the torque converter, flexplate, cooler, cooler lines, transmission fluid, dipstick, wiring, sensors, transmission mount, transfer case connection, PTO hardware, driveshaft connection, and installation hardware.
The best buyer for this package is someone who can confirm the vehicle year, model, 4WD drivetrain, 6.6L Duramax engine code, Allison LCT1000 transmission, PTO requirement, and required supporting components before ordering.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | ATS Diesel Performance Automatic Transmissions 309-815-4308-FSMF |
| Brand | ATS Diesel Performance |
| Manufacturer’s Part Number | 309-815-4308-FSMF |
| Part Type | Automatic Transmissions |
| Summit Racing Part Number | APF-309-815-4308 |
| Product Description | ATS Stage 1 Allison LCT1000 Transmission Package 4WD w/ PTO 2006–2007 6.6L LLY / LBZ / LMM Duramax |
| Transmission Family | Allison LCT1000 |
| Transmission Type | Automatic |
| Stage Level | Stage 1 |
| Application Years | 2006–2007 |
| Engine Size | 6.6L Duramax |
| Engine Codes | LLY / LBZ / LMM |
| Drivetrain | 4WD |
| PTO Compatibility | With PTO |
| Torque Converter Included | Confirm before ordering |
| Flexplate Included | Confirm before ordering |
| Transmission Controller Included | Confirm before ordering |
| Wiring Harness Included | Confirm before ordering |
| Transmission Cooler Included | Confirm before ordering |
| Transmission Fluid Included | Confirm before ordering |
| Dipstick Included | Confirm before ordering |
| Pan Style | Confirm before ordering |
| Case Material | Confirm before ordering |
| Lockup Compatible | Confirm before ordering |
| Remanufactured | Confirm before ordering |
| Quantity | Confirm before ordering |
| Fitment Method | Confirm using 309-815-4308-FSMF part number, Duramax engine code, 4WD drivetrain, PTO requirement, and original transmission details |
| Compatibility Support | Confirm fitment before ordering |
Ordering Support and Fitment Guidance
Before ordering the ATS Diesel Performance Automatic Transmissions 309-815-4308-FSMF, confirm that the package matches your exact Duramax application and drivetrain setup.
Important details to verify include vehicle year, make, model, engine size, LLY engine code, LBZ engine code, LMM engine code, 6.6L Duramax compatibility, Allison LCT1000 transmission compatibility, 4WD drivetrain, PTO requirement, torque converter requirements, flexplate compatibility, cooler line routing, electrical connector compatibility, sensor compatibility, control module requirements, transmission mount location, crossmember position, transfer case compatibility, driveshaft/yoke setup, fluid specifications, and installation hardware.
This transmission package is listed for 4WD 2006–2007 6.6L LLY / LBZ / LMM Duramax applications with PTO. Buyers should confirm exact fitment before ordering because automatic transmission compatibility can vary across engine codes, model configurations, electronics, and factory options.
Our team can help confirm compatibility using the 309-815-4308-FSMF part number, original transmission details, vehicle year, engine code, drivetrain, PTO requirement, and application information before purchase.
Frequently Asked Questions
What is the ATS Diesel Performance 309-815-4308-FSMF transmission?
The ATS Diesel Performance 309-815-4308-FSMF is an ATS Stage 1 Allison LCT1000 automatic transmission package listed for compatible 4WD 2006–2007 6.6L LLY, LBZ, and LMM Duramax applications with PTO.
What transmission family is this package based on?
This package is listed as an Allison LCT1000 transmission package. Buyers should confirm that the original vehicle transmission matches the Allison LCT1000 application before ordering.
What engine applications does this package support?
This package is listed for 6.6L Duramax applications with LLY, LBZ, and LMM engine codes. Confirm the exact engine code before ordering.
Is this a 4WD transmission package?
Yes. The product description lists this package for 4WD applications.
Does this transmission package support PTO?
Yes. This package is listed with PTO, making PTO compatibility an important detail to confirm before ordering.
Is this a Stage 1 transmission package?
Yes. This product is listed as an ATS Stage 1 Allison LCT1000 Transmission Package.
Does this package include a torque converter?
Torque converter inclusion should be confirmed before ordering because it is not specified in the provided product details.
Does this package include a controller or wiring harness?
Controller and wiring harness inclusion should be confirmed before ordering because they are not specified in the provided product details.
Does this package include a transmission cooler?
Transmission cooler inclusion should be confirmed before purchase. Proper cooling is important for towing, hauling, work-truck use, and long-term transmission reliability.
Is this transmission remanufactured?
The remanufactured status should be confirmed before ordering because it is not specified in the provided product details.
What part number should I use to confirm fitment?
Use 309-815-4308-FSMF as the main manufacturer’s part number. The APF-309-815-4308 Summit Racing part number can also help confirm product identity.
Is this a complete installation kit?
Included components should be confirmed before ordering. Buyers should verify whether the package includes the torque converter, flexplate, cooler, cooler lines, fluid, dipstick, wiring, sensors, PTO-related components, or other installation parts.
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