8HP75 Front Pump Oil Seal 0501328776

The 8HP75 Front Pump Oil Seal is used at the front of the ZF 8HP75 and 8HP75X automatic transmission around the torque converter and pump area. For the metal-clad front seal commonly fitted in this position, reference 0501 328 776 is listed for 8HP75 applications, and specialist transmission catalogs identify the seal size as approximately 53 mm inner diameter, 71 mm outer diameter and 7 mm width.

This seal is exposed to converter rotation, automatic transmission fluid, hydraulic pressure and operating heat. Its job is to retain transmission fluid while allowing the torque converter hub to rotate through the sealing lip. A worn or damaged seal can create leakage from the bellhousing area.

Before ordering, customers should compare the original seal dimensions, transmission model and front cover configuration.

8HP75 Front Pump Oil Seal Function

The 8HP75 Front Pump Oil Seal works at an important sealing point in the transmission. The torque converter hub passes through the front pump area, and the seal maintains contact around the rotating hub.

A correctly installed front seal helps support:

• Transmission fluid retention
• Stable front pump sealing
• Clean torque converter housing
• Reliable lubrication and hydraulic operation

Front seal leakage should not automatically be blamed on the seal alone. Wear on the torque converter hub, damaged pump bushings, incorrect installation or contamination can also damage a new seal. Professional technicians should inspect surrounding components before installation.

0501328776 Front Seal Reference

The reference 0501 328 776 is listed for the metal-clad pump seal used in ZF 8HP75 and 8HP75X transmission applications. This is different from the large rubber O-ring that seals the front cover to the transmission case.

A front pump or converter oil seal is installed around the rotating converter hub, while the front-cover-to-case O-ring seals the outer perimeter of the front cover. The two parts perform different jobs.

For product matching, customers can provide:

• Transmission model
• Original seal photo
• Seal dimensions
• Front cover photo
• Original reference number
• Vehicle information

If the original seal is removed, measuring the inner diameter, outer diameter and width can provide useful confirmation.

ZF 8HP75 Transmission Repair Application

The ZF 8HP75 is an eight-speed automatic transmission designed for higher torque applications. Its front pump and torque converter area depend on accurate sealing to maintain transmission fluid inside the unit.

When transmission fluid is visible between the engine and gearbox, technicians may inspect the converter seal, pump area and related front cover components. A complete diagnosis is important because leakage can travel across the bellhousing and make the source difficult to identify.

During replacement, technicians should inspect the converter hub for grooves, scratches or abnormal wear. The pump bushing and front cover condition should also be checked. Installing a new 8HP75 Front Pump Oil Seal against a damaged converter hub may result in repeated leakage.

Professional installation, clean ATF lubrication on the sealing lip and correct seal positioning are recommended.

Front Cover and Pump Area Inspection

Because this product is located in the front cover area, it is often replaced during transmission overhaul or when the gearbox has already been removed for another repair.

Related components that may require inspection include:

• Front cover to case O-ring
• Pump body seals
• Torque converter hub
• Pump bushing
• Input shaft sealing rings
• Transmission fluid condition

Replacing related worn seals while the transmission is disassembled can help reduce repeated labor for future leakage repairs.

Related 8HP75 Transmission Parts

We supply various ZF 8HP75 automatic transmission repair components, including:

• Transmission overhaul kits
• Front pump sealing components
• Oil pan and filter assemblies
• Valve body components
• Solenoid parts
• Friction plate kits
• Pistons and sealing rings
• Bearings and bushings

Customers rebuilding a complete 8HP75 transmission can send us a parts list, product photos and required quantities for matching support.

8HP75 Front Pump Oil Seal Wholesale Supply

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

For 8HP75 Front Pump Oil Seal 0501328776 inquiries, we can provide product photos, availability information and wholesale quotations. Mixed transmission parts orders are welcome for customers sourcing multiple ZF 8HP repair components.

Contact Us for ZF 8HP75 Parts

If you are looking for an 8HP75 Front Pump Oil Seal 0501328776 or other ZF 8HP75 transmission repair components, contact us with the transmission model, original part photo and required quantity.

Providing the original seal dimensions or front cover photo can help us distinguish the converter seal from other front-cover sealing components and confirm the correct product before ordering.