Hold your wiper blade against the glass and carry it through every sweep with this DORMAN HELP windshield wiper arm, part number 42798, built for the front right position. It fits many vehicles, among them the 2015-2021 Ford F-150, 2018-2021 Ford Expedition and 2017-2022 Ford F-250 Super Duty. See the "Vehicles it fits" section for the full list.
Wiper arms take a beating from weather, ice and constant spring load. Dorman designed this arm to fit and work like the original arm on the listed vehicles, so it serves as a direct replacement when the factory arm is worn or damaged.
- Direct replacement: Engineered to match the original arm's fit and function on the listed applications.
- Replaces a worn arm: Intended for an original wiper arm worn out by spring wear, snow damage or metal fatigue.
- Durable construction: Made from quality materials for dependable performance.
- Trustworthy quality: Backed by Dorman's U.S.-based team of product experts and more than a century of automotive experience.
Signs this part may need replacing include a blade that lifts or chatters at highway speed, streaking from weak blade pressure, or an arm that is visibly bent or cracked. If a worn arm is the cause, this arm replaces it. Inspect the wiper blade at the same time.
Interchange: FL3Z17526A · JL1Z17526B
Frequently Asked Questions
What does a windshield wiper arm do?
It connects the wiper blade to the wiper pivot, uses spring tension to hold the blade against the glass, and carries the blade through each sweep.
Which position is Dorman 42798 for?
It is cataloged for the front right windshield wiper position on the listed applications.
Will this wiper arm fit my 2015-2021 Ford F-150?
Yes, the 2015-2021 Ford F-150 is a listed application, along with the 2018-2021 Ford Expedition and 2017-2022 Ford F-250 Super Duty. The "Vehicles it fits" section has the full list.
What are signs a wiper arm is worn?
A blade that lifts off the glass at speed, chatters or streaks from weak spring pressure, or an arm that is bent or cracked. A worn blade can cause similar symptoms, so check the cause first.
How is this wiper arm installed?
The original arm is removed from the pivot shaft and this arm installs in its place. Follow the vehicle service information for removal steps and the correct blade park position.
