Subaru Forester Oxygen sensors | 2003-2024 OEM Replacement

Looking for OEM-quality oxygen sensors for your 2003-2024 Subaru Forester? RevXSC stocks every major brand — Bosch, ACDelco, Denso, Gates, Dorman, Motorcraft, NGK, FRAM and OEM Subaru — built to factory specifications for a direct-fit installation. Verified by VIN, ready to ship from the US within 1 business day.

Subaru Forester Oxygen sensors Fitment (2003-2024)

The Subaru Forester platform across 2003-2024 uses these primary engines: 2.5L FB25 / 2.0L turbo. Specific oxygen sensors part numbers vary by engine, trim and production year — use the table below to identify yours.

Year Range	Engine	Common Part Numbers (Examples)	Typical OE Brand
2003-2024	2.5L FB25 / 2.0L turbo	Use VIN lookup or browse all oxygen sensors below	Denso, NTK, Bosch, ACDelco

Why Oxygen sensors Matters for the Subaru Forester

The Subaru Forester uses 2-4 oxygen sensors to feed real-time exhaust composition data to the ECU for closed-loop fuel trim. A degraded sensor causes poor MPG, rough idle and accelerated catalytic-converter degradation. Replace at the first sign of P013x / P014x DTCs.

Shop Subaru Forester Oxygen sensors

Browse the complete Oxygen sensors collection to find the exact part number for your Subaru Forester. Use the year and engine filters at the top of the collection page to narrow down — or contact our support team if you'd like help confirming fitment by VIN.

Shop Oxygen sensors for Subaru Forester →

Oxygen sensors Maintenance Schedule for Subaru Forester

Oxygen sensors typically last 60,000-100,000 miles. Replace at the first sign of failure (P013x / P014x DTCs, poor fuel economy, rough idle).

Frequently Asked Questions

What oxygen sensors fits my Subaru Forester?

Subaru Forester oxygen sensors fitment varies by year, engine and trim across 2003-2024. The engines used are typically 2.5L FB25 / 2.0L turbo. Browse the collection and use the year + engine filters to identify the exact part for your vehicle, or contact us for VIN lookup.

What's the average cost of oxygen sensors for a Subaru Forester?

Typical out-the-door pricing for Subaru Forester oxygen sensors runs $40-$300 depending on brand tier (premium OE vs value aftermarket), category (front vs rear, single vs set), and whether hardware is included. Browse the collection for current pricing on every brand we stock.

Are these oxygen sensors OEM quality?

RevXSC stocks oxygen sensors from tier-1 OE manufacturers (Denso, NTK, Bosch, ACDelco) plus authorised aftermarket alternatives. Every part listed is built to OE specification for direct-fit replacement.

How long does shipping take?

In-stock orders ship within 1 business day from US fulfillment. Standard ground delivery: 3-5 business days. Expedited and overnight options are available at checkout.

What if it doesn't fit?

We back every order with a fits-guarantee. If a part doesn't fit your specific Subaru Forester despite matching the listed fitment, we accept returns and exchanges within 30 days. Always confirm by VIN before opening packaging if you're unsure.

Should I use OEM or aftermarket oxygen sensors?

Both are valid. OEM provides factory-exact fit and standard warranty support. Premium aftermarket from Bosch, Denso, Gates or ACDelco often matches or exceeds OE performance at a lower price (they make the parts that GM/Ford/Toyota sell as OEM). Avoid budget aftermarket for safety-critical parts.