Innovators, Not Imitators — Made in the USA 💎
Werks JDM Store
Est. 2016
Home
Products
All Products New Arrivals Flash Sale⚡️ 10th Gen Civic 8th/9th Gen Civic EG/EK/DC2 K-Series B-series D-series J-Series H-Series Clutch Pedal Braces Steering Rack Collection Rotrex Supercharger Kits Mazda Mitsubishi Engine Bay Performance & Drivetrain Coil Pack Covers Oil Dipsticks Firewall & Milspec Plates Shift Knobs Titanium Hardware Accessories
Install Guides About Us Contact
Menu
Home Products Install Guides About Us Contact
Shop by Category
All Products New Arrivals Flash Sale⚡️ 10th Gen Civic 8th/9th Gen Civic EG/EK/DC2 K-Series B-series D-series J-Series H-Series Clutch Pedal Braces Steering Rack Collection Rotrex Supercharger Kits Mazda Mitsubishi Engine Bay Performance & Drivetrain Coil Pack Covers Oil Dipsticks Firewall & Milspec Plates Shift Knobs Titanium Hardware Accessories
Install Guides Contact Us About MDP
Firewall Engine Harness Grommet & Milspec Plate - Honda Acura Billet | MDP
Universal

Firewall Engine Harness Grommet & Milspec Plate - Honda Acura Billet | MDP

$129.00–$139.00
SKU MDP-FWGMP-RAW

MDP's Firewall Engine Harness Grommet and Mil-Spec Plate lineup covers every harness routing need — from a standard OEM-size harness to oversized Rywire and mil-spec connectors. All versions are CNC-machined from 6061 billet aluminum and include hardware for a clean, professional firewall finish.

Standard Grommet Plate (With Seal) — For harnesses up to ¾"

  • Integrated weatherproof rear O-ring seal — blocks water, debris, and fumes
  • CNC-machined 6061 billet aluminum
  • Hardware included: 4x M6 hex bolts + 4x M6 rivnut inserts

Mil-Spec Plate — For Rywire / oversized mil-spec connectors

  • Larger opening engineered for mil-spec connector bodies
  • Available in Diamond or Square profile
  • No rubber seal — use silicone or RTV for a sealed finish if required
  • Slim profile for proper firewall fitment
  • Hardware included

Designed and manufactured in the USA by MDP Florida.

Made in USA
CNC Machined
Secure Checkout
Fast Shipping

Customer Reviews

Based on 4 reviews
Write a review
100%
(4)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
M
Michael

These parts are some top-quality pieces for the AWD CRX build. The craftsmanship is on point and I can’t wait to get them installed.

R
Ryan

Great idea, great product. I’m a Honda guy but I’m building a c5 corvette and using it on my build. I follow Werks on instagram for years. The orange civic was and is super clean so I know they have an eye for detail. Sick product. Sending it to be anodized custom color for even more detail.

E
Emmanuel

Package came in double wrapped and didn’t find any damage when shipped out. Product was also received in great condition as pictured and fit perfectly. Will purchase more products in the future. 👍🏽

J
Jose

Great company fast delivery and great part I’m glade I’m using it on my project

All Products

You May Also Like

Rack & Pinion Bracket - Honda Civic EG EK DC2 Integra Billet Aluminum | MDP
EG / EK / DC2
Rack & Pinion Bracket - Honda Civic EG EK DC2 Integra Billet Aluminum | MDP
$95.00–$139.00
Clutch Pedal Brace Assembly Support - Honda Acura TSX Civic TL Billet | MDP
8th Gen / TSX / TL
Clutch Pedal Brace Assembly Support - Honda Acura TSX Civic TL Billet | MDP
$130.00
Clutch Pedal Stopper - Honda Acura Civic Integra RSX TSX Type R Billet | MDP
Universal
Clutch Pedal Stopper - Honda Acura Civic Integra RSX TSX Type R Billet | MDP
$95.00–$135.00
Sale
Shifter Cable Plate Grommet- Honda K20 K24 RSX Swap MDP
K-Series
Shifter Cable Plate Grommet- Honda K20 K24 RSX Swap MDP
$149.00–$155.00
Your History

Recently Viewed

Werks JDM Store
MDP™
Florida · Est. 2016

Precision billet upgrades for Honda & Acura enthusiasts. Designed for performance, built for style. Family-owned, proudly made in the USA.

IG YT FB

Shop

Home Products Install Guides About Us Contact

Menu

Search About Us Shipping Policy Terms of Service Refund policy Privacy Policy

Account

Orders Profile

© 2026 Topshelf Performance, LLC. All rights reserved. Innovators, not imitators.

American Express
Apple Pay
Diners Club
Discover
Google Pay
Mastercard
Shop Pay
Visa

View Full Details →