Dorman - HELP P/N:42799

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$39.99

MPN: 42799

UPC: 889245943644

Item Package Quantity: 1

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Dorman - HELP P/N:42799

$39.99

Description

Restore a firm, chatter-free wipe with the Dorman - HELP Windshield Wiper Arm 42799, a direct-fit replacement for the front left (driver's side) arm that connects the wiper linkage to the blade and holds it against the glass through each stroke. It drops in on the 2018-2021 Ford Expedition, 2015-2021 Ford F-150, 2017-2022 Ford F-250, F-350, F-450 and F-550 Super Duty, 2015-2021 Ford Lobo, and 2018-2021 Lincoln Navigator. See the Buyer's Guide tab for the full application and engine details.

Direct replacement: designed to match the fit and function of the original arm on the listed vehicles.
Durable construction: made from quality materials for reliable performance and long service life.
Reliable replacement: if a worn original arm is the cause, this replaces one that has failed from spring wear, snow damage, or metal fatigue.
Trustworthy quality: backed by a team of product experts in the United States and more than a century of automotive experience.

Signs the arm may need replacing include chatter, a blade that lifts or skips, or an arm that no longer holds tension against the windshield. Inspect and diagnose the cause before ordering.

Interchange: FL3Z17527A · JL1Z17527A

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

This part cross-references / interchanges with the following part numbers:

FL3Z17527A, JL1Z17527A

Frequently Asked Questions

What position does this wiper arm fit?

It is the front left (driver's side) windshield wiper arm for the listed applications. See the Buyer's Guide tab to confirm the correct side for your vehicle.

Which vehicles does the Dorman 42799 fit?

It fits the 2018-2021 Ford Expedition, 2015-2021 Ford F-150, 2017-2022 Ford F-250/F-350/F-450/F-550 Super Duty, 2015-2021 Ford Lobo, and 2018-2021 Lincoln Navigator.

What numbers does this arm interchange with?

It cross-references FL3Z17527A and JL1Z17527A. Matching any of these to your original part helps confirm the correct replacement.

What does a windshield wiper arm do?

It transfers motion from the wiper linkage to the blade and holds the blade against the glass, so the blade sweeps the windshield with consistent pressure.

How do I know if my wiper arm is worn?

Common signs are chatter, a blade that skips or lifts, or an arm that no longer keeps tension on the glass. Diagnose the cause before replacing, as blades or linkage can also be involved.