SKU: WCF100257

Billet Aluminum Brake Master Cylinder Cap Clear Anodized

4 in stock and ready for shipping
Confirmed fitment below
YEARS
1998.5-2024
MAKE / MODEL
Dodge RAM/RAM /
SERIES
2500/3500
ENGINE
5.9L Cummins 24V/5.9L Cummins/6.7L Cummins
Price
$37.83
or
American Express
Apple Pay
Diners Club
Discover
Google Pay
Mastercard
PayPal
Shop Pay
Visa
Free Shipping
ORDERS $70+
Easy Returns
HASSLE-FREE
Earn Rewards
ALLIGATOR POINTS
Not sure this fits your build?
Our diesel experts know these trucks. Call or chat before you buy.
1-208-719-7400

PRODUCT DETAIL

Key Features & Description

Features:

  • Fits 1998.5–2024 Dodge RAM Cummins trucks
  • Direct OEM replacement cap, not just a cover
  • CNC machined from solid billet aluminum
  • Clear anodized finish for a clean look
  • Reuses existing diaphragm from stock cap
  • Improves engine bay appearance instantly
  • Installs in seconds with no modifications
  • Made in the USA with high-quality materials
  • Durable construction resists corrosion and wear

Small Detail Big Impact On Your Engine Bay

If you're the kind of truck owner who sweats the details, the Wehrli 100257 Billet Aluminum Brake Master Cylinder Cap is the kind of upgrade you’ll appreciate every time you pop the hood. Designed specifically for 1998.5–2024 Dodge RAM 2500 and 3500 Cummins trucks, this cap isn’t a flimsy cover, it’s a full OEM replacement built from solid billet aluminum. The clear anodized finish gives it a clean, refined look that instantly tidies up your engine bay without screaming for attention. Whether you're going for that fully polished show build or just want to get rid of factory plastic eyesores, this cap hits the mark. It installs in seconds using the factory diaphragm from your original cap, so you don’t have to worry about any compatibility issues. And because it’s made in the USA, you can trust it’s built with quality in mind. It’s a subtle upgrade that makes a strong impression.

Machined Precision Meets Functional Underhood Styling

The Wehrli 100257 Billet Brake Master Cylinder Cap is CNC machined in the USA from high-grade billet aluminum for precision fit and long-term durability. Engineered as a true OEM replacement for 1998.5–2024 Dodge RAM 5.9L and 6.7L Cummins trucks, this cap is not a slip-on cover but a full replacement that threads directly onto the brake fluid reservoir. The design retains use of the original diaphragm to maintain proper reservoir function and pressure balance. Its clear anodized coating not only enhances corrosion resistance but also adds a subtle aesthetic upgrade to the engine bay. Installation takes only a few seconds with no special tools required, making this a perfect project for those who want function and form in one quick install. The cap’s rigid construction resists deformation under heat and vibration, ensuring it looks and performs well over time. Ideal for performance builds, show trucks, or simply those who value long-lasting quality in the details.

Fits: 1998.5, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

Notes:

  • Designed as a complete OEM replacement cap, not a cosmetic cover.
  • Compatible with 1998.5–2024 Dodge RAM 2500/3500 Cummins trucks.
  • Reuses the factory diaphragm from the original cap for proper function.
  • Clear anodized finish enhances appearance and resists corrosion.
  • Installs quickly and easily with no modifications required.
  • CNC machined in the USA from high-quality billet aluminum.
  • Intended to clean up and visually upgrade the engine bay.

FITMENT GUIDE

Exact Fitment — Verify Your Year

Year RangesYears
Make
Model
Series
Engine
1998.5-2024
Dodge RAM/RAM
2500/3500
5.9L Cummins 24V/5.9L Cummins/6.7L Cummins

CUSTOMER REVIEWS

What Buyers Say

Call a Diesel Expert, we'll find the right fit for your build

Not sure this part is right for your truck? Our team knows these platforms inside out. No hold music, no scripts.

Chat with Us