NATIONAL 415988 Automatic Transmission Extension Housing 724956120383 Seal

( Brand: National ), ( Manufacturer Part Number: 415988 ), ( Part Type: Seal Transmission Housing ), ( Product Type: Transmission ), ( UPC: 724956120383 ), ( Fitment Type: Direct Replacement ), ( Partslink Number: 6778050, 4033, A8926x, 7045597, Q27958k, 4399t2, 1d4326, A1805n66 ), ( Compatible Make S : Chevrolet, Gmc, Hummer ), ( Compatible Model S : Silverado 3500 Hd, Silverado 2500 Hd, Silverado 3500 Classic ), ( Fitnote: Transmissionmfrname ), ( Product Subtype: Transmission Shafts Gears ), ( Product Details: Automatic Transmission Main Shaft Seal ), ( Engine Version: 364 Gm, 496 Chevy Big Block V8 Gen Vii ), ( Department: Replacement )

Review NATIONAL For Chevy Hd Automatic Transmission Extension Housing Seal fits SILVERADO 3500 2007–2018

National 415988 Extension Housing Seal for Chevy Silverado 3500 (07-18) Automatic Transmission

The National 415988 Extension Housing Seal is a crucial component designed specifically for Chevy Silverado 3500 models with automatic transmissions manufactured between the years 2007 and 2018. This seal plays a vital role in maintaining the integrity and performance of your transmission system.

This seal is meticulously engineered to provide an effective barrier against various fluids and contaminants that can potentially harm your automatic transmission. It fits snugly into the extension housing of your transmission, ensuring a perfect seal that prevents any unwanted leakage.

Made from high-quality materials, this extension housing seal boasts exceptional resilience and durability. It is designed to withstand the rigors of heavy-duty use, making it an ideal choice for those who rely on their Chevy Silverado 3500 for towing, hauling, or other demanding tasks.

Installation of this seal is a straightforward process. It comes ready-to-install, meaning you won't have to spend hours preparing it before installation. Simply remove the old seal, clean the area, and install the new one. Proper installation ensures optimal performance and longevity of your transmission system.

Investing in a genuine National 415988 Extension Housing Seal for your Chevy Silverado 3500 is an investment in the longevity and reliability of your vehicle. By preventing leaks and maintaining the necessary seal, you can rest assured that your transmission system functions at its best, providing you with the power and performance you expect from your Chevy Silverado 3500.

Please note that it is essential to use the correct seal for your specific application to ensure proper fitment and function. Always consult your vehicle's service manual or a qualified technician for any installation or replacement procedures.

Pros and Cons of Buying a National 415988 Transmission Extension Housing Seal for Chevy Silverado 3500 (2007-2018) Automatic

The National 415988 Transmission Extension Housing Seal is a crucial component in maintaining the functionality of the automatic transmission in Chevy Silverado 3500 models from 2007 to 2018. In this analysis, we will discuss the advantages and disadvantages of purchasing this seal from National.

1. Availability: National is a well-known and reputable auto parts manufacturer. Their seals are readily available at most auto parts stores and online retailers, ensuring quick and easy access.

2. OEM-quality: National's parts are designed to meet or exceed OEM (Original Equipment Manufacturer) specifications. This means you can trust that the seal will function as intended for optimal transmission performance.

3. Cost-effective: Compared to dealer-priced parts, National offers a more affordable alternative for customers looking to save money on their repairs.

1. Installation: Installing a transmission extension housing seal can be a complex and time-consuming process. It is recommended that you have the repair done by a professional mechanic to ensure proper installation and avoid potential complications.

2. Potential for leaks: Seals can wear out over time and may develop leaks. While this part is designed to last, it is essential to monitor your transmission fluid levels regularly and address any leaks promptly to prevent further damage.

In summary, purchasing a National 415988 Transmission Extension Housing Seal for your Chevy Silverado 3500 (2007-2018) automatic transmission offers several advantages, including OEM-quality, availability, and cost-effectiveness. However, it is important to consider the potential challenges, such as the complex installation process and the need for regular monitoring of transmission fluid levels. Ultimately, the decision to purchase this seal depends on your comfort level with DIY repairs and your budget. If you prefer to have a professional handle the repair, the benefits of OEM-quality and cost savings may outweigh the potential challenges.

Details:

If you are looking for the part that fits and performs exactly like stock one lasts even longer, this company will have covered with quality components meet or surpass OE requirements. Features: Expertly crafted from premium materials. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised.

Inside Diameter: 2.562. This product is made of high-quality materials to serve you for years come. Redcoat: Yes. Sealing Material: Nitrite.

Design: Spring Loaded, Multi-Lip. National selects only sturdy materials to ensure every product delivers long-lasting durability. Outside Diameter: 3.628. Choose if you are looking for an effective wheel end solution at a perfect price-quality ratio.

High quality at a budget-friendly price. Designed to match rigorous quality standards.

part #: 415988 prices

• $8.00-$22.50

specifications manutransmission:

• for models: 3500, Silverado
• for makes: Chevy
• for years: 2007-2018
• brand: National
• mpn: 415988
• part type: Seal Transmission Housing
• product type: Transmission
• upc: 724956120383
• fitment type: Direct Replacement
• partslink number: 6778050, 4033, A8926x, 7045597, Q27958k, 4399t2, 1d4326, A1805n66
• compatible make s : Chevrolet, Gmc, Hummer
• compatible model s : Silverado 3500 Hd, Silverado 2500 Hd, Silverado 3500 Classic
• fitnote: Transmissionmfrname
• product subtype: Transmission Shafts Gears
• product details: Automatic Transmission Main Shaft Seal
• engine version: 364 Gm, 496 Chevy Big Block V8 Gen Vii
• department: Replacement

shipping manutransmission:

• carrier: FedEx
• type: Calculated
• class: Standard
• transit: 4-9 Days
• cost: $21.07
• service: FedEx Ground / FedEx Home Delivery

payments manutransmission:

• credit card: Mastercard
• other
• wallet: Apple-pay

offer manutransmission:

• started: June 4, 2026
• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 5

general manutransmission:

• Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts
• condition: New

seller manutransmission:

• rating: 95.7%
• city: Miami, Florida
• # reviews: 13276

returns manutransmission:

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

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