6T40 Gen 1 Input Drum 24253300

The 6T40 Gen 1 Input Drum 24253300 is a hard transmission component designed for first-generation 6T40 and related 6T45 automatic transmission repair and rebuilding applications. This component is commonly identified as the 4-5-6 clutch drum and also works with the 3-5-Reverse clutch system inside the transmission.

Unlike the later second-generation drum, the Gen 1 version uses an earlier structural design and must be matched carefully with the original transmission components. For this reason, technicians and distributors should confirm the original drum design before ordering rather than selecting a replacement only according to the 6T40 transmission name.

The clutch drum operates as part of the rotating clutch system. It supports clutch-related components and transfers torque through specific transmission operating ranges. Because it works under repeated hydraulic pressure, rotational force and temperature changes, the physical condition of the drum is important during a complete transmission rebuild.

This product is intended for transmission specialists, professional repair workshops, gearbox rebuilders, parts distributors and wholesalers requiring 6T40 hard parts for repair projects.

First Design 6T40 4-5-6 Clutch Drum

The 6T40 Gen 1 Input Drum belongs to the first-design clutch drum configuration used in the 6T40 transmission family.

The 4-5-6 clutch assembly is involved in several higher transmission ranges, while the drum construction also interfaces with components related to the 3-5-Reverse clutch system. Correct mechanical alignment and sealing are necessary for the clutch circuits to operate properly.

During transmission disassembly, technicians should inspect the original drum carefully for signs of wear or damage.

Important inspection areas may include:

• Drum surface condition
• Spline wear
• Snap-ring areas
• Clutch contact surfaces
• Sealing areas
• Cracks or deformation
• Related clutch components

A damaged drum can affect the operation of the clutch assembly and may contribute to hydraulic or mechanical transmission problems.

Replacing the worn component with the correct first-generation design can help restore the clutch assembly during professional rebuilding.

24253300 First Generation Input Drum

The reference number 24253300 is associated with the first-design 6T40 clutch drum.

Because both first-generation and later-generation drums exist within the 6T40 family, identifying the correct version is especially important.

Customers should not automatically replace a first-generation drum with a later version without confirming the complete transmission configuration and related components.

For accurate matching, we recommend providing:

• Transmission model
• Original input drum photos
• Original reference number
• Drum and hub design
• Clutch configuration
• Vehicle information if available

Clear photos of the original drum are especially useful when the customer is not sure whether the transmission uses the earlier or later design.

Difference Between Gen 1 and Gen 2 6T40 Input Drum

One of the most important considerations when purchasing this product is the difference between the old and new designs.

The 6T40 Gen 1 Input Drum is intended for the earlier configuration, while later 6T40 and 6T45 applications may use a second-generation drum.

The two products should therefore be treated as separate transmission parts rather than simply two names for the same component.

For workshops repairing multiple 6T40 gearboxes, keeping the first-generation and second-generation drums clearly separated can help reduce incorrect installation and parts-selection problems.

When the transmission has already been disassembled, technicians should compare the original drum, support design and related clutch components before selecting the replacement part.

Professional 6T40 Transmission Rebuilding

The 6T40 automatic transmission contains multiple clutch assemblies, hydraulic components and mechanical hard parts that work together during gear changes.

When rebuilding the transmission, technicians should not inspect the input drum alone. Related components should also be checked for wear or damage.

These may include:

• Friction plates
• Steel plates
• Clutch pistons
• Sealing rings
• Bushings
• Bearings
• Valve body components
• Transmission filter
• Hydraulic passages

If clutch plates show abnormal wear or damage, technicians should inspect the drum and related hydraulic circuits to determine whether additional repair components are required.

The 6T40 Gen 1 Input Drum is suitable for professional rebuilding applications where the original first-design drum requires replacement.

Related 6T40 Transmission Parts

We supply a wide range of components for 6T40, 6T45 and other automatic transmissions, including:

• Transmission overhaul kits
• Friction plate kits
• Steel plate kits
• Clutch pistons
• Valve body components
• Solenoid assemblies
• Transmission filters
• Bearings and seals
• Other transmission hard parts

Customers rebuilding complete transmissions can send us a purchasing list, transmission model or original part photos for product matching.

Mixed transmission parts orders are welcome for repair shops and distributors purchasing multiple models.

6T40 Gen 1 Input Drum Wholesale Supply

We supply automatic transmission components to professional workshops, rebuilders, distributors and wholesalers worldwide.

For 6T40 Gen 1 Input Drum 24253300 inquiries, we can provide current product photos, packing information, availability and wholesale quotations.

Customers purchasing both first-generation and second-generation 6T40 components can send us original photos so that the two versions can be identified separately before shipment.

Contact Us for 6T40 Transmission Parts

If you are looking for a 6T40 Gen 1 Input Drum 24253300, clutch components or other 6T40 transmission repair parts, contact us with your required quantity.

Providing clear photos of the original drum and transmission information will help us confirm the correct version and reduce matching errors before ordering.