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Subaru 10921AA080 Genuine Engine Variable Valve Timing (VVT) Solenoid

Subaru 10921AA080 Genuine Engine Variable Valve Timing (VVT) Solenoid

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✔ Subaru 10921AA080 Engine Variable Valve Timing (VVT) Solenoid — Genuine OEM Part
✔ Fitment: Subaru Impreza WRX, WRX STI, Forester, Legacy, and Outback with 2.5L Turbo H4 engines (2006–2012)
✔ Direct replacement for factory VVT solenoid — no modifications required
✔ Manufactured to Subaru’s original specifications
✔ Genuine Subaru quality — ensures precise camshaft timing control
✔ Essential component — maintains engine performance and responsiveness

 

Subaru 10921AA080 Genuine VVT Solenoid — for 2.5L Turbocharged Engines

A check engine light accompanied by engine hesitation, pinging under acceleration, rough idling, or reduced engine performance — these are common signs that your variable valve timing (VVT) control solenoid may need replacement . The VVT solenoid, also known as a spool valve, is responsible for routing oil pressure to adjust camshaft timing, optimizing power output and efficiency across different engine speeds . A faulty solenoid can disrupt this precise control, leading to suboptimal performance and potential engine damage. Replacing it with this genuine Subaru part restores accurate VVT operation and protects your engine's performance.

This is a factory-original Subaru engine variable valve timing (VVT) solenoid (OE part number 10921AA080), designed for turbocharged engines in the EJ20 and EJ25 series . It is manufactured to Subaru's strict quality standards, ensuring a precise fit and reliable operation. This is the same part sold at Subaru dealerships.

When to Replace

• Check engine light with VVT-related codes
• Engine hesitation or pinging under acceleration• Rough or irregular idling• Reduced engine performance or sluggish response
• The solenoid is cracked, corroded, or has a damaged electrical connector
• Oil contamination has caused a stuck spool valve

Product Details & Highlights

• ✔ Genuine Subaru OEM — not an aftermarket or Chinese replica
• ✔ Precision-engineered — ensures accurate camshaft timing control
• ✔ Direct replacement — fits factory mounting location
• ✔ Manufactured to Subaru’s strict quality standards
• ✔ Essential for optimal engine performance
• ✔ Backed by Subaru’s manufacturer warranty (valid through any authorized dealer)

Package Contents

Package Contents• 1 × Subaru 10921AA080 VVT solenoid (genuine)

FAQ

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 2008 Subaru Impreza WRX STI?
Yes — the 2008 WRX STI with the 2.5L turbo engine uses this VVT solenoid. We recommend verifying with your VIN.

Does this fit the 2009 Subaru Forester XT?
Yes — the 2009 Forester XT with the 2.5L turbo engine uses this solenoid. Please verify with your VIN.

Can I use this solenoid on a naturally aspirated engine?
No — this solenoid is designed specifically for turbocharged engines. Naturally aspirated models use a different part number.

How many solenoids do I need?
Some engine configurations use two solenoids (one per camshaft side). Please verify your specific application before ordering .

What is the torque spec for installation?
The solenoid is typically secured with bolts. Refer to your vehicle's service manual for the exact specification.

Does this solenoid come with the mounting hardware?
No — the mounting hardware is typically reused or purchased separately.

Does this fit the 2010 Subaru Legacy GT?
Yes — the 2010 Legacy GT with the 2.5L turbo engine uses this solenoid. Please verify with your VIN.

Does this fit the 2007 Subaru Outback XT?
Yes — the 2007 Outback XT with the 2.5L turbo engine uses this solenoid. Please verify with your VIN.

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

Can I install this solenoid myself?
Yes — it is a relatively straightforward replacement. However, we recommend consulting your vehicle's service manual for the correct installation procedure.

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