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Air and Fuel› Fuel Cells, Tanks and Components

Mazda

Air Separator Tank

$181.18 $160.53 Save $20.65

SKU: N3A1-15-35XB

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
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Easy — 1–2 hours

Overview

The Mazda TANK, AIR SEPARATE is a direct replacement part for the RX-7. This component is designed to fit specific Mazda RX-7 models. It supersedes previous part numbers N3A1-15-35XA and N3A1-15-35X.
Show original supplier description
The Mazda TANK, AIR SEPARATE is a direct replacement component engineered for specific Mazda RX-7 models. This part serves as an essential element within the vehicle's cooling system, managing air separation for optimal performance. It is designed to directly replace original equipment manufacturer (OEM) part numbers N3A1-15-35XA and N3A1-15-35X, ensuring a seamless integration and maintaining the integrity of the cooling system. This air separator tank is compatible with the 1993 through 1995 model years of the Mazda RX-7, accommodating both manual and automatic transmissions. Ensure compatibility by verifying your specific RX-7 model and year. Proper functioning of this air separator tank is crucial for preventing air from entering the coolant system, which can lead to overheating and reduced cooling efficiency. When replacing this part, it is also recommended to inspect and potentially replace associated hoses, such as the air separator tank to overflow water hose, the filler neck to air separator tank water hose, and the lower radiator to air separator tank water hose, to ensure a complete and leak-free cooling system repair.

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 NumberN3A1-15-35XB
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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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