Mazda Genuine PCV Valve (OEM) – L3K9-13-890 – Mazdaspeed 3 / 6 / CX-7
Restore proper crankcase ventilation and engine performance with a Mazda Genuine PCV Valve. A worn or sticking PCV is a common issue on MZR DISI turbo engines and can contribute to rough idle, oil consumption, crankcase pressure issues, and boost-related problems.
Genuine Mazda Part Number: L3K9-13-890. Mazda parts listings describe this PCV valve as fitting Mazdaspeed3, Mazdaspeed6, and CX-7 2.3L turbo applications.
What does it do?
The PCV (Positive Crankcase Ventilation) valve controls crankcase pressure by routing blow-by gases back into the intake system.
When the PCV starts failing, you may notice:
- Rough or unstable idle
- Increased oil consumption
- Excess crankcase pressure
- Oil in the intake system
- Reduced performance or boost-related issues
Replacing it helps restore:
- Stable idle and smoother running
- Proper crankcase pressure control
- Improved engine reliability
- Reduced oil contamination in the intake system
Why choose Genuine Mazda?
- OEM quality and correct flow characteristics
- Direct fit replacement
- Designed specifically for Mazda’s 2.3L turbo MZR DISI
- Better choice than many unknown aftermarket alternatives
Fitment
Fits:
- Mazda 3 MPS / Mazdaspeed 3 (2007–2013)
- Mazda 6 MPS / Mazdaspeed 6 (2006–2007)
- Mazda CX-7 2.3L Turbo (commonly listed 2007–2012)
Part Numbers
- PCV Valve: L3K9-13-890
- PCV Retainer Clip: LF01-10-509
What’s included
- 1 x Mazda Genuine PCV Valve
Retainer clip, O-ring, PCV plate, and hose sold separately unless selected.
Recommended while you’re there
- PCV retainer clip
- PCV O-ring
- PCV hose
- PCV plate / breather plate gasket if servicing the area
Important
- Located under the intake manifold on most MZR DISI turbo setups
- Installation can be time-consuming depending on vehicle setup
- Professional installation recommended if unsure
- Always confirm fitment before ordering if your vehicle has had engine swaps or modifications
Keywords
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