Subaru

Subaru 44022AA123 Genuine Exhaust Donut Gasket

Name: Subaru 44022AA123 Genuine Exhaust Donut Gasket
Brand: Subaru
SKU: 44022AA123
Price: 18.62 USD
Availability: InStock

$18.62

✔ Subaru 44022AA123 Exhaust Donut Gasket — Genuine OEM Part
✔ Fitment: Exhaust pipe flange connection for select Subaru models (See Application Table for model years)
✔ Direct replacement for factory exhaust donut gasket — no modifications required
✔ Manufactured to Subaru's original specifications and tolerances
✔ High-temperature metal/graphite construction — withstands extreme exhaust heat
✔ Essential for a leak-tight seal at the exhaust pipe connection

Subaru 44022AA123 Genuine Exhaust Donut Gasket — for Select Subaru Models

A ticking or puffing noise from the exhaust on cold start, an exhaust smell inside the cabin, or visible soot around the exhaust flange — these are common signs that your exhaust donut gasket needs replacement. This gasket seals the joint between sections of the exhaust system, keeping hot gases inside the pipes and protecting the vehicle from fumes. A worn or damaged gasket can lead to exhaust leaks, engine noise, and potential damage to surrounding components. Replacing it with this genuine Subaru part restores a proper seal and ensures quiet, efficient exhaust flow.

This is a factory-original Subaru exhaust donut gasket (OE part number 44022AA123), designed for use at the flange connections between the exhaust pipes. It is made from high-temperature materials that withstand the extreme heat and vibration of the exhaust system. This is the same part sold at Subaru dealerships.

When to Replace

When to Replace (Common Symptoms)
• Ticking or pinging noise from the exhaust on cold start
• Exhaust odor in the cabin or near the engine bay
• Visible black soot around the exhaust flange
• Rattling spring bolts or loose exhaust connection
• The gasket is cracked, flattened, or damaged
• You are replacing the exhaust pipe, catalytic converter, or downpipe
• Backpressure loss or boost lag on turbo models

Product Details & Highlights

Product Highlights
• ✔ Genuine Subaru OEM — not an aftermarket or Chinese replica
• ✔ High-temperature metal/graphite construction — withstands extreme exhaust heat
• ✔ Direct replacement — fits factory exhaust flange
• ✔ Single-use sealing — ensures a leak-tight seal every time
• ✔ Essential for proper exhaust flow and sound
• ✔ Backed by Subaru’s manufacturer warranty (valid through any authorized dealer)

Package Contents

Package Contents
• 1 × Subaru 44022AA123 exhaust donut gasket (genuine)

FAQ

Is this a genuine Subaru part or a copy?
This is 100% genuine Subaru OEM — in original factory packaging with Subaru part number printed on the label. It is not an aftermarket brand or a replica.

Does this fit my 2015 Subaru Outback with the 3.6L engine?
Yes — the 2015 Outback with the 3.6L engine uses this gasket. We recommend verifying with your VIN.

Does this fit my 2013 Subaru WRX?
Yes — the 2013 WRX uses this gasket at the downpipe-to-midpipe connection. Please verify with your VIN.

Can I reuse the old gasket?
No — this gasket is designed for one-time use. Once it has been compressed and heat-cycled, it will not seal properly again.

Does this gasket fit the Subaru Forester?
Yes — the Forester with the FB25 engine uses this gasket for the pipe union. Please verify with your VIN.

What is the torque spec for installation?
The typical torque spec for the spring-bolt flange is 20–25 Nm. Always refer to your vehicle’s service manual for the exact specification.

Does this gasket come with mounting hardware?
No — this is the gasket only. The spring bolts, nuts, and studs are typically reused or purchased separately.

Is this the same gasket used on the Subaru STI?
Yes — the STI uses this gasket at the rear downpipe connection. Please verify with your VIN.

How do I install this gasket?
To install, remove the old gasket (which may need to be dug out piece by piece), clean the socket of rust and scale, and fit the new gasket into place. Tighten the spring bolts evenly to the specified torque.

Does this gasket fit the 2020 Subaru Forester?
Yes — the 2020 Forester uses this gasket. Please verify with your VIN.

Does this gasket come with a warranty?
Yes — this gasket is backed by Subaru's manufacturer warranty. For claims, please contact your nearest Subaru authorized dealer.

Can I use this gasket on a turbocharged engine?
Yes — this gasket is suitable for both naturally aspirated and turbocharged Subaru engines. Please verify your application.

Does this gasket fit the Subaru Crosstrek?
Yes — the Crosstrek uses this gasket. Please verify with your VIN.

Does this gasket fit the 2007 Subaru WRX?
Yes — the 2007 WRX with the EJ255 turbo engine uses this gasket. Please verify with your VIN.

View full details

Subaru 44022AA123 Genuine Exhaust Donut Gasket

OEM Part Numbers
• 44022AA123
• 44022AA121 (superseded)
• 44022AA122 (superseded)

Cross Reference / Analogs original part number

Brand	Original / Cross Reference Part Number
MITSUBISHI	MR431022
MITSUBISHI	1575A082
MITSUBISHI	MR450710
SUZUKI	1418352D00
FORD	3670557
SUBARU	44011FE000
SUBARU	44022AA122
SUBARU	44022AA120
SUBARU	44022AA121

Cross Reference / Analogs

Brand	Part Number	Type / Note
FA1	771-961	Exhaust pipe seal ring, 77 × 60 × 15 mm
MAXGEAR	70-0558	Exhaust pipe seal ring, 77 × 60 × 15 mm
WALKER	80268	Exhaust pipe gasket, front / center / rear applications
AJUSA	00973700	Exhaust pipe gasket, 77 × 60 × 14.5 mm
Dr. Motor Automotive	DRM01788	Exhaust pipe gasket
FEBEST	01491001	Exhaust pipe seal / donut gasket
IMASAF	09.40.71	Exhaust pipe seal ring
Subaru OEM	44022AA122	Previous / superseded OEM number
Subaru OEM	44022AA121	Previous OEM number
Subaru OEM	44022AA120	Earlier OEM reference

Vehicle Fitment Table (OEM Compatibility)

Brand	Model	Years	Notes
Subaru	Outback	2005–2025	Exhaust Pipe Connector Gasket
Subaru	Impreza	2002–2025	Exhaust Pipe Flange Gasket
Subaru	WRX / STI	2002–2021	Downpipe to Midpipe Connection
Subaru	Forester	2004–2025	Exhaust Pipe Connector Gasket
Subaru	Crosstrek	2018–2025	Exhaust Pipe Connector Gasket
Subaru	Legacy	2005–2025	Exhaust Pipe Flange Gasket

⚠️ Important Fitment Notes:

• Always verify by VIN – Fitment is determined by the specific exhaust system design. Confirm your application before ordering.

• Exhaust donut gasket – This is a crush-style ring gasket designed for use at pipe unions with spring-bolt flanges.

• Single-use – This gasket is designed for one-time use. Once it has been compressed and heat-cycled, it should be replaced with a new one.

• Genuine Subaru quality – This is an OEM part, not an aftermarket or Chinese replica.

• Double-check your original part – Before ordering, confirm the part number printed on your old gasket or run your VIN through a Subaru OEM parts catalog for absolute certainty.

Condition
New (100% genuine Subaru packaging)

Product Type
Exhaust Donut Gasket (crush-style ring gasket)

Function
The exhaust donut gasket seals the joint between exhaust pipe sections, preventing exhaust gases from leaking. It maintains proper exhaust flow, protects the vehicle from fumes, and reduces noise for a quiet, efficient exhaust system.

Applications
This exhaust donut gasket fits Subaru Outback, Impreza, WRX/STI, Forester, Crosstrek, and Legacy models from approximately 2002 through 2025.

Important: This gasket is for exhaust flange connections. It is not for use at the cylinder head or manifold. If in doubt, send us your VIN before ordering.

Technical Specifications

Parameter	Specification
Brand	Subaru (Genuine OEM)
Part Number	44022AA123
Seller SKU	SUBARU_44022AA123
Type	Exhaust donut gasket (crush-style)
Application	Exhaust pipe flange connection
Material	High-temperature metal / graphite
Condition	New (factory original)

Warranty
Subaru's original manufacturer warranty applies. For claims, please contact your nearest Subaru authorized dealer with your proof of purchase. Warranty terms may vary by region — contact us before purchase if you need a warranty confirmation.