FEL-PRO BS 40729 rear crankshaft seal kit for the 2011-2014 Ford F-150 V6 3.7L, the 2011-2017 F-150 V8 5.0L, the 2011-2026 F-150 V6 3.5L, the 2015-2017 F-150 V6 2.7L, the 2018-2023 F-150 V6 3.3L and other vehicles seals the rear of the crankshaft to keep engine oil inside. Parts catalogs also list this FEL-PRO crankshaft seal kit as an engine crankshaft seal kit.
- Designed for imperfect sealing surfaces to deliver a reliable seal
- Made with proprietary materials
- Application-specific design
- Engineered and manufactured specifically for repair applications
- Validated for fit, form and function
Quick facts
- Part: FEL-PRO BS 40729 crankshaft seal kit
- Also called: engine crankshaft seal kit
- Fits: the 2011-2014 Ford F-150 V6 3.7L, the 2011-2017 F-150 V8 5.0L, the 2011-2026 F-150 V6 3.5L, the 2015-2017 F-150 V6 2.7L, the 2018-2023 F-150 V6 3.3L and other vehicles
- Position: Rear
- Condition: New
A worn rear crankshaft seal can show up as oil at the back of the engine, oil spots under the vehicle or a falling oil level. Before you replace this kit, rule out other oil leak sources such as the valve cover gasket or oil pan gasket, because oil can run along the engine and look as if it comes from the rear.
Fits
The 2011-2019 Ford Explorer V6 3.5L, the 2020 Explorer V6 3.0L, the 2020-2023 Explorer V6 3.3L and the 2011-2017 Ford Mustang V6 3.7L or V8 5.0L take it as well, one kit per vehicle, and so do many other vehicles. It meets or exceeds all original equipment specifications. Owners of other vehicles can find their year and engine in the "Vehicles it fits" section on this page.
Specifications
Fit and size
- Position: Rear
- Quantity per vehicle: 1
Build and materials
- Condition: New
- Country of origin: Taiwan
Interchange: 7T4Z6701AA · AT4Z6701A · 67827 · ZZJ111399A · 191003601
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
7T4Z6701AA, AT4Z6701A, 67827, ZZJ111399A, 191003601
Frequently Asked Questions
Does the FEL-PRO BS 40729 fit the 2011-2026 Ford F-150 V6 3.5L?
Yes. BS 40729 is listed for the 2011-2026 Ford F-150 V6 3.5L, one kit per truck. For another engine or vehicle, find your year and engine in the "Vehicles it fits" section.
Is this FEL-PRO kit for the front or the rear of the crankshaft?
Rear. FEL-PRO BS 40729 is a rear crankshaft seal kit, and the catalog quantity is one per vehicle.
Does FEL-PRO BS 40729 replace 7T4Z6701AA?
Yes. 7T4Z6701AA is one of the numbers this kit replaces, along with AT4Z6701A, 67827, ZZJ111399A and 191003601.
How can I tell if my rear crankshaft seal is leaking?
Look for oil at the back of the engine or oil spots under the vehicle, with the engine off and cool. A falling oil level can also be a sign.
Where is the FEL-PRO BS 40729 made?
Taiwan is the country of origin listed for FEL-PRO BS 40729.
