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Mishimoto 1999-2005 Mazda Miata Thermostatic Oil Cooler Kit - Black product view

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Mishimoto MMOC-MIA-99TBK installed angle on vehicle

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Mishimoto 1999-2005 Mazda Miata Thermostatic Oil Cooler Kit - Black core and end tank detail

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Mishimoto 1999-2005 Mazda Miata Thermostatic Oil Cooler Kit - Black packaging and included hardware

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Mishimoto 1999-2005 application close-up of MMOC-MIA-99TBK

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Mishimoto 1999-2005 Mazda Miata Thermostatic Oil Cooler Kit - Black mounting points detail

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Mishimoto 1999-2005 Mazda Miata Thermostatic Oil Cooler Kit - Black

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Brand: MishimotoSKU / Part #: MISMMOC-MIA-99TBK

Regular price: $508.95
Regular price: ~~$560.00~~
Sale price: $508.95
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Subtotal: $508.95

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Mishimoto 1999-2005 Mazda Miata Thermostatic Oil Cooler Kit - Black

Subtotal: $508.95

Not sure it fits? Text us your VINSee all fitment

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Fitment and product questions · 9am–6pm Pacific

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Overview

This Mishimoto performance cooler is a direct-fit upgrade for 1999-2005 Mazda applications covering Miata, Miata LS. It replaces the weak points of the stock part with stronger materials and better flow or cooling so heat, boost and abuse stay under control on street and track duty. AutoTalent lists verified US-market fitment in the table below.

Why upgrade

Mazda Miatas love track days, but with hot laps come hot oil temperatures. High oil temps can be detrimental to a vast majority of engine components, and a fried piston ring can turn your fun track day and into a costly repair. These kits are engineered around real chassis packaging, so hoses, coolers and adapters line up without fabrication on the listed years. Follow the published torque specs and install guide, reuse sensors where instructed, and confirm clearances if you run other supporting mods. Every unit ships with the Mishimoto Lifetime Warranty for as long as you own it.

Features

Direct fit for the 1999-2005 Mazda Miata NB
Reduces oil temperatures by 10F (5.6C)
Mounting brackets also serve as ducting to channel air to cooler
Minimal pressure drop
Works with most aftermarket turbo kits
Pre-made stainless steel braided oil lines with durable -10AN fittings
Billet aluminum thermostatic oil sandwich plate allows oil to reach optimum temperature

What's Included

Application Specific Mounting Brackets
Application Specific Oil Cooler Ducts
10-Row Oil Cooler
1ft Stainless Steel Braided Hose w/ 120 Degree -10AN Fittings
1ft 9.5in Stainless Steel Braided Hose w/ 90 Degree and 120 Degree -10AN Fittings
M20 Thermostatic Sandwich Plate
M20 Stainless Steel Sandwich Plate Adapter
M20 x -10AN Straight Fittings
Large O-ring
Mounting Hardware Set
Mishimoto Lifetime Warranty

Specifications

Part number	MMOC-MIA-99TBK
Brand	Mishimoto
Type	cooler
Engine codes	1.8L BP
Chassis codes	NB
Shipping dimensions	18.3 x 15.3 x 8.7 in (46.5 x 38.9 x 22.1 cm)
Shipping weight	11 lb (5.0 kg)

Fitment Notes

Verified against Mishimoto US applications and dealer listing for 1999-2005 (2 rows). Years extended to 2027 where the US model remains in production.

Vehicle Fitment

Questions about fitment? Call (310) 231-0292 or text (310) 886-3111.
Year	Make	Model	Chassis	Engine
1999-2005	Mazda	Miata	MAZ-US	—
2000-2005	Mazda	Miata LS	MAZ-US	—

Fitment

Year	Make	Model

Not sure? Text us your VIN and we’ll confirm.

Shipping & returns

Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.

Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.

Not returnable: special-order or custom items, and anything that has been installed, modified or altered.

Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.

Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.

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