Help keep gear lubricant inside the axle and dirt and water out with the SKF differential pinion seal, part number 18852. This rear differential pinion seal is a direct-fit replacement for many vehicles, among them the 2011-2018 Ram 1500, 2000-2010 Dodge Ram 1500 and 2001-2008 Dodge Ram 2500. See the "Vehicles it fits" section for the full list and engine-level details.
The pinion seal sits at the pinion input of the differential. Its body stays stationary while the sealing lip rides against the rotating pinion yoke or flange, helping hold differential lubricant in and keep contaminants out.
- Tested design and materials: built with a high-quality, tested design and materials for correct fit.
- Dirt and water protection: designed to give superior protection against dirt and water.
- Steel garter spring: the garter spring uses cold drawn steel wire for superior fluid retention.
- Rigid metal case: the body is formed from deep drawn sheet steel, giving a rigid, stress-resistant metal case.
SKF invented the first integrated shaft seal in 1928 and has kept developing new seal designs and bonding techniques since then. Its seals are made to specific designs with premium materials, chosen for the properties each application and its environment require.
Signs this seal may need replacing include gear oil seeping around the pinion yoke, oily residue on the differential housing near the driveshaft connection, or a low differential fluid level. Confirm the source of the leak before replacing the seal.
Interchange: OS-10967-4
OS109674 · 710481 · 52070340 · 52070340AA · 52070340AB · 68056356AA · 4132937100 · 38562 · 5207034AB · 27SS2937 · 100272033
This part cross-references / interchanges with the following part numbers:
18852, 710481, 52070340, 52070340AA, 52070340AB, 68056356AA, 4132937100, 38562, OS-10967-4, 5207034AB, 27SS2937, 100272033
Frequently Asked Questions
What does the SKF 18852 differential pinion seal do?
It seals around the pinion input at the rear differential, helping keep lubricant in and dirt and water out. The seal body stays stationary while its lip rides against the rotating pinion yoke or flange.
Which vehicles does SKF 18852 fit?
It is listed for many vehicles, among them the 2011-2018 Ram 1500, 2000-2010 Dodge Ram 1500 and 2001-2008 Dodge Ram 2500; see the "Vehicles it fits" section for the full list.
What are signs a differential pinion seal may need replacing?
Common signs include gear oil seeping around the pinion yoke, oily residue on the differential housing near the driveshaft, or a low fluid level. Confirm the source of the leak before replacing the seal.
What are the case and garter spring made of?
SKF forms the body from deep drawn sheet steel for a rigid, stress-resistant metal case. The garter spring uses cold drawn steel wire for fluid retention.
What interchange numbers does SKF 18852 cross to?
It crosses to OS-10967-4, 710481, 52070340, 52070340AA, 52070340AB, 68056356AA, 4132937100, 38562, 5207034AB, 27SS2937 and 100272033.
