Help stop coolant seepage at the water pump joint with the FEL-PRO Multi-Purpose O-Ring / Engine Water Pump O-Ring 35634, cataloged for the inner position and listed under both names. It fits many vehicles, among them the 1995-2001 Ford Ranger, 2009-2021 Nissan GT-R and 2009-2020 Nissan 370Z, as a direct-fit replacement for the listed applications. See the "Vehicles it fits" section for the full list and engine details.
Fel-Pro designs its gaskets for the repair environment, aiming to deliver a dependable seal even on troublesome applications. This O-ring is designed for imperfect sealing surfaces and made with Fel-Pro's proprietary materials, giving you a sealing solution built for real-world repairs.
- OE-level specs: Built to match or better every original-equipment specification.
- Application-specific design: Designed for a precise fit on the listed applications.
- Made for real-world repairs: Engineered and produced specifically for the repair environment.
- Exacting standards: Every Fel-Pro gasket, however small, is engineered with proprietary design, engineering and manufacturing processes.
Signs it may need replacing: Coolant seeping or crusting around the water pump, a steadily dropping coolant level, or a sweet coolant odor. If a worn water pump O-ring is the cause, this part replaces it. Confirm the leak source before replacing.
Interchange: 122861 · 21049JK20A · 57Z8507A · F57Z8507CC · K31355 · 416190900
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
122861, 21049JK20A, 57Z8507A, F57Z8507CC, K31355, 416190900
Frequently Asked Questions
What does the FEL-PRO 35634 O-ring do?
It seals a joint at the engine water pump, in the inner position. It helps keep coolant from seeping out of that connection. Fel-Pro also lists it as a multi-purpose O-ring.
Which vehicles does this O-ring fit?
It fits many vehicles, among them the 1995-2001 Ford Ranger, 2009-2021 Nissan GT-R and 2009-2020 Nissan 370Z. Check the "Vehicles it fits" section for your exact vehicle.
What are the signs a water pump O-ring may need replacing?
Signs include coolant seepage or crust around the water pump, a dropping coolant level, or a sweet coolant smell. Other parts can cause the same signs, so diagnose the leak source first.
How is this Fel-Pro O-ring designed?
Fel-Pro engineers it for the real-world repair environment. It is designed for imperfect sealing surfaces, made with proprietary materials, and has an application-specific design.
Which part numbers does the 35634 cross-reference?
It cross-references 122861, 21049JK20A, 57Z8507A, F57Z8507CC, K31355 and 416190900.
