Mishimoto Thermostatic Oil Cooler Kit Mazda MX5 NB 98-05
- Fits the 1998–2005 Mazda MX-5 NB/NBFL
- Reduces oil temperatures by 10°F (5.6°C)
- 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
- Cooler available in either Sleek Silver or Stealth Black
- Increases oil capacity by 0.5 qt
- Mishimoto Lifetime Warranty
Mazda MX-5's 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. NB MX-5's come with a stock liquid-to-liquid oil cooler, which is sufficient for daily driving, but just doesn’t cut it when it comes to more spirited driving.
During testing, this MX-5 oil cooler kit dropped oil temperatures 10°F (5.6°C) when tested on a 65 mph highway cruise. This MX-5 oil cooler set-up is definitely going to come in handy when you’re redlining your engine around the track. The design of the mounting bracket serves as ducting to channel air to the cooler, and it mounts the cooler away from the front bumper to save room for an intercooler. And who doesn’t want an intercooler, a turbo, and other forced induction bits? Speaking of forced induction, turbos can also heat-up oil, which makes an oil cooler a vital addition to your boosted MX-5.
This MX-5 oil cooler kit features a billet aluminum thermostatic oil sandwich plate to ensure that your oil reaches optimum temperature before flowing to the cooler. Overcooled oil can be just dangerous overheated oil, making this feature especially important in colder climates. This MX-5 oil cooler kit also comes with pre-made stainless steel braided lines with durable -10AN fittings and the Mishimoto Lifetime Warranty, so you can depend on this cooler as much as you depend on your roadster.
Purchase Includes
(2) Application Specific Mounting Brackets
(2) Application Specific Oil Cooler Ducts
(1) 10 Row Oil Cooler (Silver or Black)
(1) 1ft Stainless Steel Braided Hose w/ 120 Degree -10AN Fittings
(1) 1ft 9.5in Stainless Steel Braided Hose w/ 90 Degree and 120 Degree -10AN Fittings
(1) M20 Thermostatic Sandwich Plate
(1) M20 Stainless Steel Sandwich Plate Adapter
(2) M20 x -10AN Straight Fittings
(1) Large O-ring
(1) Mounting Hardware Set
Mishimoto Lifetime Warranty
Increase in Oil Capacity
0.5 Quarts (0.473L)
Temperature Difference
10°F (5.6°C)
Fits
1998–2005 Mazda MX-5
Engine Codes
1.8L BP
Chassis Codes
NB
Note
Recommended torque specification for all straight fittings and banjo bolts: 15-25 ft/lbs (operating range). Do not exceed the maximum torque rating of 35 ft/lbs.
The installation of this kit requires cutting the plastic undertray. OEM part number for plastic undertray is NA01-56-111F.
During our testing, we had no issues with oil cooler damage, but if concerned, we recommend purchasing window screen or chicken wire to provide additional protection to the oil cooler core.
Caution
It is the installer's responsibility to check all thermostat plugs, NPT plugs, line fittings, and other connections to assure they are fully tightened before operating the vehicle. Mishimoto recommends that you check all connections at regular intervals, especially during the first few miles after installation. For additional technical information, click here to contact us.
This product is compatible with the following vehicles
| Vehicle Make | Vehicle Model | Vehicle Variant | From | To | Engine | Notes |
| Mazda | MX5 | NB | 1998 | 2001 | BPZE | 1.8L - RWD Petrol |
| Mazda | MX5 | NB | 2001 | 2005 | BPZE | 1.8L - RWD Petrol |
Mishimoto is a premier manufacturer of performance aluminium radiators, racing thermostats, aluminium fan shrouds, universal intercoolers, silicone hose kits and cooling accessories. Mishimoto is the leader in cooling in the aftermarket performance automotive industry.
Whether you're a daily driver searching for a dependable quality upgrade from your current OEM radiator, or you're a devoted racer who needs a lightweight, high-performance racing radiator, Mishimoto has just what you're looking for. Many drivers overlook the importance of having a high-quality aluminium radiator installed, yet it is one of the most important components in your vehicle's engine.
Mishimoto Racing Thermostats will promote greater cooling efficiency throughout your engine. The Mishimoto racing thermostat will significantly lower high engine temperature produced by modified and upgraded turbo applications.
