Transmission Dipstick Filler Cap wedfish Nylon

Description

Product Overview

The wedfish dipstick filler cap is a precision‑engineered component designed to replace the OEM cap on a range of Jeep, Chrysler and Dodge vehicles. Constructed from high‑grade abrasion‑resistant nylon, the cap delivers exceptional durability while resisting heat, chemicals and daily wear. Its minimalist design measures 1.35 x 1.03 x 1.03 inches, matching the original part number OEM#4591959AA for a seamless fit. The cap features an integrated O‑ring that ensures a tight seal, preventing oil leaks and maintaining engine cleanliness.

Usage

Ideal for routine transmission oil checks and top‑ups, this filler cap is suited for both professional mechanics and DIY enthusiasts. Install it when servicing the transmission dipstick tube on compatible Jeep Commander (2006‑2010), Grand Cherokee (2006‑2020), Liberty (2007‑2012), Chrysler Aspen (2009), Pacifica (2007‑2008), Sebring (2007‑2010), Dodge Charge (2006‑2020) and many other models listed in the compatibility guide. Its lightweight construction (0.31 ounces) makes handling easy, and the secure seal helps maintain optimal oil pressure during operation.

Why Choose Us

wedfish combines rigorous material testing with automotive‑specific engineering to deliver a product that meets or exceeds OEM standards. Each cap undergoes a heat‑cycle test to verify sealing performance under high‑temperature conditions typical of transmission systems. Our commitment to quality is reflected in a 4.8‑star rating from 30 verified customers, highlighting reliability and fit accuracy. Backed by a clear return policy, the cap offers peace of mind for long‑term vehicle maintenance.

Key Features

• Premium abrasion‑resistant nylon construction for lasting durability
• Integrated O‑ring provides a leak‑proof seal under high pressure
• Exact OEM dimensions ensure a perfect fit for specified Jeep, Chrysler and Dodge models
• Lightweight (0.31 oz) for easy installation and handling
• Minimalist black design blends seamlessly with engine bay aesthetics

FAQ

Is this cap compatible with my 2015 Jeep Grand Cherokee?

Yes, the cap fits Grand Cherokee models from 2006 through 2020, including the 2015 year.

What material is used and can it withstand transmission heat?

The cap is made of high‑grade nylon that resists heat and chemical exposure typical of transmission environments.

Do I need any tools to install the cap?

Installation is tool‑free; simply align the cap with the dipstick tube and press until the O‑ring seats securely.

Will this cap prevent oil spills during a dipstick check?

Yes, the integrated O‑ring creates a tight seal that prevents oil from leaking out while you check or refill the transmission.

What is the warranty period for this product?

wedfish offers a one‑year limited warranty covering manufacturing defects for this dipstick filler cap.