Subaru OEM Firewall Grommet Plug 1" Diameter WRX / STI / BRZ / Ascent – Import Image Racing
Skip to content
Subaru OEM Firewall Grommet Plug 1" Diameter WRX / STI / BRZ / Ascent / Crosstrek / Forester | 690302540

Subaru OEM Firewall Grommet Plug 1" Diameter WRX / STI / BRZ / Ascent / Crosstrek / Forester | 690302540

SKU: sub690302540
Availability: 3 In Stock
Product Type: Engine Compartment Misc
$1.12
$1.12
$1.12
Save $0.00

BuildBUX Rewards

Great news – on this purchase, you'll enjoy a BuildBUX bonus of $0.01.

Subaru OEM Parts
Subtotal: $1.12
🕒 Order within hours minutes
📦

Fasktrak

$7.99

Estimated: ,

🚚

Express

Starts at $8.99

Loading...

⚡

Fastest

Starts at $10.99

Loading...

Product Fitment:

2019-2027 Subaru Ascent
2013-2020, 2022-2027 Subaru BRZ
2018-2023 Subaru Crosstrek
1998-2008, 2014-2025 Subaru Forester
1987-1989 Subaru GL
1993, 1995-2007, 2012-2023 Subaru Impreza
1988-1994 Subaru Justy
1990-2007, 2009-2025 Subaru Legacy
1990 Subaru Loyale
1996-2007, 2009-2026 Subaru Outback
1985-1989 Subaru RS
1988-1989 Subaru RX
2004-2007, 2015-2021 Subaru STI
1995-1997 Subaru SVX
2002-2007, 2015-2026 Subaru WRX
1985-1987 Subaru XT

The Genuine Subaru OEM Firewall Grommet Plug (Part #690302540) is an exact-fit rubber plug designed to seal 1-inch diameter openings in your Subaru's firewall. Purpose-built for factory-level fitment, this plug prevents exhaust fumes, moisture, road noise, and engine heat from entering the cabin — making it an essential component for any restoration, repair, or wiring-pass-through project on compatible Subaru vehicles.

Key Features & Benefits

  • Genuine Subaru OEM Quality — Manufactured to exact factory specifications, ensuring a perfect seal and long-lasting durability without the guesswork of aftermarket alternatives.
  • Exact 1" Diameter Fit — Designed specifically for 1-inch firewall openings; no trimming, adapting, or modification required.
  • Seals Out Fumes, Moisture & Noise — Blocks exhaust gases, water intrusion, and road/engine noise from entering the passenger compartment, maintaining cabin comfort and safety.
  • Heat & Vibration Resistant Rubber — Constructed from OEM-grade rubber compound that withstands engine bay heat cycles and vibration without cracking or shrinking over time.
  • Factory Warranty Backed — Covered under Subaru's genuine parts warranty for peace of mind.
  • Snap-In Installation — Simple press-fit design installs in seconds with no tools required for most applications.

What's Included

  • 1x Genuine Subaru Firewall Grommet Plug (1" Diameter)

Specifications

Part Number 690302540
Brand Genuine Subaru OEM
Opening Diameter 1 inch (approximately 25.4 mm)
Material OEM-grade rubber
Function Firewall opening plug / grommet seal
Quantity 1 piece

Installation

This grommet plug is designed for straightforward DIY installation. Simply align the plug with the 1-inch firewall opening and press firmly until it seats flush and snaps into place — no special tools required in most cases. For applications involving wiring pass-throughs, a slit version may be needed; consult your factory service manual. If you are unsure of the correct plug for your specific firewall location, reference your Subaru parts diagram by VIN at parts.subaru.com or consult a Subaru-certified technician.

Reasons to get BuildBUX GOLD?
We could name a few

BuildBUX Gold: $4.98/mo

More Cashback

Get more cashback! Items are changing weekly. Anywhere from 1% to 20% Back in BuildBUX when you make purchases. Products

Free Money

Every month when you are charged your $4.98 subscription fee, you will get $15 in BuildBUX

Easy To Cancel

Cancel anytime, month to month terms.

Get Started

BuildBUX: Free

Cashback

Get 1% back on every purchase on eligible brands.

Free

Completely free to use. Just place an order!

Get Started

Thanks for subscribing!

This email has been registered!

Shop the look

Choose Options

Edit Option
is added to your shopping cart.

Choose Options

this is just a warning
Login