Differential Pinion Seal – 0159970346 | Mercedes Sprinter Rear Axle Oil Seal

SKU: 0159970346 - qty 1

Ensure a leak-free rear differential on your Mercedes Sprinter with this Rear Differential Pinion Seal – part #0159970346. Also known as a pinion seal or radial shaft sealing ring, this critical seal installs at the rear differential’s pinion output shaft, preventing lubricant from leaking where the driveshaft connects to the differential. A worn or deteriorated seal can cause gear oil leaks, driveline vibration, and contamination, making this small but essential part vital for drivetrain longevity and smooth operation. 

✔ OEM-Equivalent Quality Seal

• Designed to match Mercedes-Benz part 0159970346 / A015-997-03-46-64 for proper fitment and long-lasting performance. 

• Provides a tight seal around the pinion shaft to retain differential fluid and exclude dirt or debris.

✔ Critical for Differential Health

• Prevents differential gear oil leaks that can lead to low oil levels and accelerated wear on bearings and gears. 

• Installs easily when servicing the differential, pinion bearings, or driveshaft — a must-replace item if removing the yoke or pinion flange.

✔ Common Sprinter Fitment

This pinion oil seal fits the rear differential on many Mercedes Sprinter models (e.g., Sprinter 1500, 2500, 3500, 3500 XD) and other vehicles using the same rear axle design. Always verify with your VIN or existing part number to ensure compatibility before ordering. 

📌 Service Tip: Whenever you service the rear differential or replace the pinion bearings/flange, install a new pinion seal to prevent leaks and ensure reliable operation of your drivetrain.