STREET SPORT INDUSTRIES 403D Duramax Transmission Flexplate 5/6 Plate

( Brand: Street Sport Industries ), ( Manufacturer Part Number: 403D ), ( Type: Flexplate ), ( Manufacturer Warranty: 1 Year ), ( Material: Steel ), ( Universal Fitment: No ), ( Transmission Type: Automatic ), ( Country Of Origin: China ), ( Performance Part: Yes )

Review STREET SPORT INDUSTRIES Duramax Allison 5/6 Speed Transmission Flexplate Plate fits FLEX 1000 2001–2019

Introducing the Street Sport 403D 01-19 Duramax Allison 1000 5/6 Transmission Flexplate, a high-performance component engineered to enhance the durability and reliability of your heavy-duty vehicle's transmission system. This flexplate is specifically designed for applications using the Allison 1000 5/6 transmission and Duramax engines, covering model years from 2001 to 2019.

Crafted from premium materials, this flexplate boasts increased strength and rigidity compared to the factory unit. Its robust design ensures that it can withstand the high torque and horsepower output of your diesel engine, reducing the likelihood of transmission damage and failure.

The Street Sport 403D Flexplate features a unique, ribbed design that helps dissipate the heat generated during operation, maintaining optimal transmission performance even under heavy loads. The ribs also improve the overall clamping force on the transmission's input shaft, ensuring a secure connection and minimizing the potential for slippage.

Installing this flexplate is a straightforward process, making it an excellent upgrade for both DIY enthusiasts and professional mechanics. The kit includes all necessary hardware for a hassle-free installation, as well as clear and concise instructions to guide you through the process.

By upgrading your factory flexplate with the Street Sport 403D 01-19 Duramax Allison 1000 5/6 Transmission Flexplate, you can enjoy enhanced power delivery, improved transmission longevity, and the peace of mind that comes with knowing your vehicle is equipped with a top-performing component.

In summary, this flexplate is an essential upgrade for heavy-duty diesel vehicles using the Allison 1000 5/6 transmission and Duramax engines, offering increased strength, durability, and heat dissipation for superior performance and reliability.

Buying a new flexplate for a 403D 01-19 Duramax Allison 1000 5/6 transmission involves weighing the pros and cons to make an informed decision. Here's a breakdown of each:

1. Improved Performance: A new flexplate can lead to better power transfer from the engine to the transmission, resulting in improved acceleration and overall performance.

2. Increased Durability: A new flexplate is more robust than a worn-out one, reducing the risk of transmission damage and potential costly repairs in the future.

3. Smoother Operation: A worn-out flexplate can cause vibrations and noise during operation. A new one can lead to a smoother, quieter ride.

4. Peace of Mind: Replacing the flexplate with a new one can provide peace of mind, knowing that you've addressed a potential issue before it becomes a major problem.

1. Cost: Replacing a flexplate can be an expensive repair, especially if you're not doing it yourself. The cost of the part itself, labor, and any additional necessary repairs can add up.

2. Time: Installing a new flexplate can take several hours, depending on your mechanical skills and the complexity of the job. If you're not experienced in working on transmissions, it may be more efficient to hire a professional.

3. Potential for Other Issues: Replacing a flexplate can be an indication of other potential transmission issues. It's essential to have the transmission inspected thoroughly to identify and address any other problems before they become major issues.

Replacing a worn-out flexplate in a 403D 01-19 Duramax Allison 1000 5/6 transmission can lead to improved performance, increased durability, smoother operation, and peace of mind. However, the repair can be costly and time-consuming. It's essential to weigh the pros and cons carefully and consider having the transmission inspected for any potential additional issues before replacing the flexplate.

If you're experiencing issues with your transmission, such as vibrations, noise, or poor performance, it's recommended to have it inspected by a professional mechanic. They can diagnose the problem accurately and provide you with a cost-effective solution, which may include replacing the flexplate or addressing other issues. If you decide to replace the flexplate yourself, ensure you have the necessary tools and expertise to do so efficiently and safely.

Details:

Di-Chromed Coated. Find out on the About ME page. Ask all questions before placing an order and know what you are buying in advance to avoid mistakes. Availability: In Stock, condition: Brand New, Start Price: $99.99 SHIPPED!!, Part No: SSI-DurAllison0119-FP.

Fits all 2001 2019 Duramax w/Allison transmission. Here are the specs. Allison 1000 5/6spd 01-19 Flex Plate to Fit all Duramax engines. This listing is for one 1 brand new in box, performance Flexplate to fit Allison 1000 5 and 6 speed transmissions used behind the Duramax engines.

These parts are brand new production.

part #: 403d price

• $99.99

specifications flwheflepla:

• for models: 1000, Flex
• for makes: Allison
• for years: 2001-2019
• brand: Street Sport Industries
• mpn: 403d
• type: Flexplate
• manufacturer warranty: 1 Year
• material: Steel
• universal fitment: No
• transmission type: Automatic
• country of origin: China
• performance part: Yes

returns flwheflepla:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

general flwheflepla:

• condition: New
• Car Truck Parts Accessories > Transmission Drivetrain > Flywheels Flexplates

payments flwheflepla:

• wallet: Google-pay
• other
• credit card: Discover

seller flwheflepla:

• rating: 100.0%
• # reviews: 38885
• city: KingSport, Tennessee

offer flwheflepla:

• sold: 0
• availability: In Stock
• started: April 5, 2026
• options: Ship-to-home

shipping flwheflepla:

• service: USPS First Class, USPS Priority Mail, Expedited
• transit: 4-10 Days
• carrier: USPS
• type: Fixed
• class: Standard, Expedited
• cost: $0.00

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