Dorman 42891 Windshield Wiper Arm - Rear

Brand Dorman 42891
Position Rear
Attachment Method Spine / Flange Nut
Color Black
Friction Material Thickness Matte
Instruction Manual Included No
Length 10.5
Material Plastic
Material Rubber
Material Steel
Package Contents 1 Wiper Arm
Universal Or Specific Fit Specific
Wiper Blade Included No
Wiper End Type Snap In
Fits Ford and Mercury · 11 vehicles

OE-style fit. Matches the original arm's fit and function for a specific application.

Durable construction. Built with steel, plastic, and rubber for reliable performance.

Snap-in end. Uses a snap-in wiper end with spine/flange nut attachment.

Cross-references 8L8Z17526B for the same application. See all 1.

$46.40Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $46.40
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Rear Wiper Arm for Ford Escape and Mercury Mariner

Dorman 42891 is a rear windshield wiper arm built to match the fit and function of the original equipment arm on specified vehicles. It is engineered for durable, reliable operation and is a direct-fit replacement for rear wiper service on select Ford Escape and Mercury Mariner models.

Key Features

  • Specific-fit rear wiper arm for confirmed applications
  • Black matte finish for an OE-style appearance
  • Constructed from plastic, rubber, and steel for strength and wear resistance
  • 10.5-inch length
  • Spine / flange nut attachment method with snap-in wiper end type
  • Wiper blade not included
  • Designed for rear wiper service on Ford Escape and Mercury Mariner vehicles

Detailed Description

This Dorman rear wiper arm, part number 42891, is designed for direct replacement on 2007-2012 Ford Escape and 2007-2011 Mercury Mariner rear applications. It follows the original arm’s fit and function, helping restore proper rear window wiping performance when the factory arm is worn, damaged, or no longer holding the blade securely. The black matte finish and OE-style construction support a clean, factory-like appearance on the vehicle.

This part cross-references Ford OE number 8L8Z17526B for the same application.

What It Helps Address

  • Rear wiper arm corrosion or surface wear
  • Loose or weak rear wiper arm tension
  • Improper rear blade contact on the glass
  • Broken or damaged rear wiper arm assembly
  • Reduced rear visibility during rain or road spray

Installation Notes and Tips

Fits 2012 Ford Escape, rear, to 4/09/12. Fits 2008-2011 Ford Escape, rear. Fits 2007 Ford Escape, rear, from 1/09/07. Fits 2008-2011 Mercury Mariner, rear. Fits 2007 Mercury Mariner, rear, from 1/09/07. Verify the rear attachment style and vehicle build date before installation. The wiper blade is not included, so reuse or replace the blade separately as needed. Part number 42891 is a specific-fit replacement and installs using the vehicle’s original mounting style.

Quality Assurance

Dorman designs this rear wiper arm to match original fit and function on the listed vehicles and to deliver dependable service in everyday use. Part number 42891 is built for direct replacement on the specified Ford Escape and Mercury Mariner rear wiper applications.

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2012FordEscapeRearTo 4/09/12
2011FordEscapeRear
2011MercuryMarinerRear
2010FordEscapeRear
2010MercuryMarinerRear
2009FordEscapeRear
2009MercuryMarinerRear
2008FordEscapeRear
2008MercuryMarinerRear
2007FordEscapeRearFrom 1/09/07
2007MercuryMarinerRearFrom 1/09/07
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
8L8Z17526B