0C8 Transmission Front Oil Seal 0C8321243

The 0C8 Transmission Front Oil Seal 0C8321243 is a sealing component designed for the front section of the 0C8 / TR-80SD 8-speed automatic transmission. With a nominal size of 42 x 66 x 8 mm, this seal is installed behind the torque converter and helps retain automatic transmission fluid inside the gearbox while the transmission input area is operating.

Volkswagen and Audi parts catalogs identify 0C8 321 243 as the shaft oil seal used in the 0C8 transmission system. Transmission parts suppliers also commonly describe the same component as a front oil pump seal or input shaft seal.

This product is suitable for professional transmission repair workshops, automatic gearbox rebuilders, distributors and wholesalers requiring replacement sealing components for TR-80SD transmission service.

0C8 Front Pump and Input Shaft Seal Function

The transmission front oil seal operates at the connection area between the torque converter and transmission housing. Its main purpose is to maintain a sealed interface around the rotating shaft and prevent ATF from escaping from the front of the gearbox.

Because this area is continuously exposed to rotational movement, transmission fluid and operating temperature, the condition of the sealing lip is important.

A worn front seal may contribute to symptoms such as:

• ATF leakage from the bellhousing area
• Oil traces around the transmission front section
• Gradual transmission fluid loss
• Contamination around the torque converter housing
• Additional transmission maintenance requirements

The official 0C8 workshop procedure specifically instructs technicians to lubricate the seal with ATF before installation and install it with the open side facing the gearbox.

0C8321243 Oil Seal Specifications

The 0C8321243 reference is well documented for the 0C8 transmission.

Key information includes:

• OE reference: 0C8 321 243
• Transmission: 0C8 / TR-80SD
• Product type: shaft oil seal
• Common description: front oil pump seal
• Size: 42 x 66 x 8 mm
• Installation area: behind the torque converter

The same dimensions and OE reference appear in Volkswagen/Audi parts catalogs and specialist transmission catalogs, providing a reliable basis for product identification.

Before ordering, customers should still compare the original component and transmission information, especially when the vehicle has previously undergone transmission repair.

TR-80SD 8-Speed Transmission Application

The 0C8 gearbox is also known in the transmission parts market as TR-80SD. It is an 8-speed automatic transmission used in selected Volkswagen Group applications, including VW Touareg and related platforms.

Because the transmission uses a torque converter and hydraulic automatic transmission system, maintaining correct ATF sealing at the front pump and input area is important.

For accurate product matching, customers can provide:

• Transmission model
• Original seal photos
• OE number
• Seal dimensions
• Vehicle information
• Required quantity

The part number and dimensions are especially useful when confirming the correct front seal.

Professional 0C8 Transmission Repair

Replacing the 0C8 Transmission Front Oil Seal is commonly performed when the transmission has been removed for repair, when fluid leakage is identified from the front section, or during major transmission rebuilding.

During installation, technicians should also inspect the torque converter hub and surrounding sealing surfaces for wear or damage. Installing a new seal against a damaged contact surface may not solve the original leakage problem.

Professional installation is recommended because incorrect seal depth, damaged sealing lips or improper installation direction can reduce sealing performance.

After installation and transmission assembly, the correct ATF level should be checked according to the applicable repair procedure.

Related 0C8 Transmission Parts

We supply various components for 0C8, TR-80SD and other automatic transmissions, including:

• Transmission overhaul kits
• Oil pan gaskets
• Transmission filters
• Valve body components
• Oil seals and sealing kits
• Bearings and bushings
• Solenoid components
• Other automatic transmission repair parts

Customers performing a complete 0C8 transmission rebuild can send us their purchasing list, original component photos and required quantities for product matching.

0C8 Front Oil Seal Wholesale Supply

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

For 0C8 Transmission Front Oil Seal 0C8321243 inquiries, we can provide current product photos, packing information, availability and wholesale quotations.

Bulk orders and mixed transmission parts orders are welcome.

Contact Us for 0C8 Transmission Parts

If you are looking for an 0C8 Transmission Front Oil Seal 0C8321243, TR-80SD transmission sealing components or other automatic transmission repair parts, contact us with your required quantity.

Providing the original seal photo, transmission model or OE number will help us confirm the correct component before ordering.