Help keep lubricant sealed inside the axle with the SKF differential pinion seal, part number 19438, a rear differential pinion seal for classic Oldsmobile and Pontiac models. It fits many vehicles, among them the 1962 Pontiac Grand Prix, 1957-1962 Pontiac Star Chief and 1953-1962 Oldsmobile 98.
The pinion seal sits where the pinion shaft exits the rear differential housing. Its body stays stationary while the sealing lip rides against the rotating pinion, helping hold lubricant in and keep road dirt and water out.
- Tested for correct fit: SKF tests the seal's design and materials for correct fit.
- Rigid metal case: the body is formed from deep drawn sheet steel, giving it a stiff, stress-resistant case.
- Steel garter spring: the garter spring is made from cold drawn steel wire, which SKF uses to help the seal retain fluid.
- Contaminant protection: designed to guard against dirt and water.
SKF invented the first integrated shaft seal in 1928. Since then it has continued to develop new seal designs and bonding techniques. Each seal is built to a specific design, using premium materials chosen for its application and its operating environment.
Signs this part may need replacing: lubricant seeping or dripping where the pinion enters the rear differential, oily grime on the differential housing, or a falling differential fluid level. Diagnose the leak source before replacing.
See the "Vehicles it fits" section for engine details and the full application list.
Interchange: CHR 19438
CHR19438 · 2067202 · 4132991100 · 975919438 · 5167591 · 523834 · 545173 · 565889 · 568564 · 145819438 · T1944 · 6654S · 6899N · N19438 · 49722
This part cross-references / interchanges with the following part numbers:
2067202, 4132991100, 975919438, CHR 19438, 5167591, 523834, 545173, 565889, 568564, 145819438, T1944, 6654S, 6899N, N19438, 49722
Frequently Asked Questions
What does the SKF 19438 pinion seal do?
It seals the rear differential housing where the pinion shaft exits. Its body stays stationary while the lip rides on the rotating pinion, helping hold lubricant in and keep dirt and water out.
Which vehicles does the SKF 19438 fit?
Listed applications include the 1962 Pontiac Grand Prix, 1957-1962 Pontiac Star Chief and 1953-1962 Oldsmobile 98. See the "Vehicles it fits" section for the full list.
What is the seal's case made of?
The body is deep drawn sheet steel, which forms a rigid, stress-resistant metal case. The garter spring is made from cold drawn steel wire.
What are signs of a leaking pinion seal?
Lubricant seeping where the pinion enters the differential, oily grime on the housing, or a dropping fluid level may indicate a worn seal. Confirm the leak source first, since other seals and gaskets can also leak.
What numbers does the SKF 19438 interchange with?
It cross-references numbers including CHR 19438, 2067202, 4132991100, 5167591, T1944, 6654S, 6899N, N19438 and 49722. The full list is on the Interchange line in the description.
