Air and Fuel› Air Cleaners, Filters, Intakes and Components

Mazda

Upgraded PCV Valve

$35.11

SKU: E301-13-890A

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The OEM Mazda Upgraded PCV Valve is a replacement part designed for '90-'05 Miata models. This valve is sourced from Mazda's 323 GTX turbo model and offers improved construction quality and stronger internals compared to standard OEM Miata units. It is recommended for turbo or supercharged engines to prevent positive crankcase pressure from entering the intake manifold.
Show original supplier description
The OEM Mazda Upgraded PCV Valve, part number E301-13-890A, is a performance-oriented replacement for 1990-2005 Mazda Miata models. Sourced from the Mazda 323 GTX turbo, this PCV valve features enhanced construction quality and more robust internals, making it a superior alternative to standard Miata PCV units. This upgraded valve is particularly recommended for Miata engines equipped with turbochargers or superchargers. Its primary function is to maintain proper crankcase ventilation by preventing positive crankcase pressure from forcing blow-by gases back into the intake manifold. This helps to ensure cleaner engine operation and can contribute to optimal performance in boosted applications. Direct compatibility is noted for 1990-1997 Miata models. For 1999-2005 Miata vehicles, installation may require a slightly different hose or configuration, though the part remains fully functional. This is a genuine Mazda part, ensuring factory-level fit and finish.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandMazda
Part NumberE301-13-890A
CategoryAir and Fuel

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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