How can the Engine Oil Cooler be removed and inspected for damage on Mazda RX-7?

The oil cooler which is positioned at the bottom of the radiator but is independent of the radiator can be removed independently. Start with the removal of the engine under-cover and empty the engine oil. The next step involves removing the two oil hoses at the bottom left corner of the cooler with the help of two wrenches without damaging the cooler. Unscrew the bolts that hold the cooler onto the radiator and there are two bolts on the bracket and lower the cooler straight down the vehicle and out of the bottom. Look at the cooler to find out whether it is damaged, cracked, or leaking a lot, and then repair it, by welding it with aluminum, or changing the whole. Reinsert the cooler and loosely fit it with the brackets to the radiator followed by hooking and fastening the oil hoses. Lastly, screw the bracket bolts, put back the engine under-cover, add oil to the engine, turn on the engine and inspect whether it leaks or not.

Genuine Mazda RX-7 Engine Oil Cooler

Oil Cooler

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4 Engine Oil Coolers found

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Mazda RX-7 Oil Cooler Part Number: N304-14-750D
$832.88 MSRP: $1138.04
You Save: $305.16 (27%)
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Product Specifications
- Other Name: Cooler, Oil
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 1984-1985 Mazda RX-7 | GS, GSL, GSL-SE, S | 2 Cyl 1.1 L GAS, 2 Cyl 1.3 L GAS
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Mazda RX-7 Oil Cooler Part Number: N326-14-700A
$742.42 MSRP: $1789.12
You Save: $1046.70 (59%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Cooler, Oil
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 1986-1991 Mazda RX-7 | 10th Anniversary, Base, Base 2+2, Convertible, GTU, GTUs, GXL, GXL 2+2, LX, LX 2+2, SE, SE 2+2, Sport, Turbo | 2 Cyl 1.3 L GAS
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Mazda RX-7 Oil Cooler Part Number: N3A1-14-700B
Product Specifications
- Other Name: Cooler, Oil; Oil Cooler
- Position: Left
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 1993-1995 Mazda RX-7 | Base, R1, R2, Touring | 2 Cyl 1.3 L GAS
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Mazda RX-7 Oil Cooler Part Number: N3A3-14-700B
Product Specifications
- Other Name: Cooler, Oil; Oil Cooler
- Position: Right
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 1993-1995 Mazda RX-7 | Base, R1, R2, Touring | 2 Cyl 1.3 L GAS

Mazda RX-7 Engine Oil Cooler

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Mazda RX-7 Engine Oil Cooler Parts and Q&A

Oil Cooler
N304-14-750D
Q: How can the Engine Oil Cooler be removed and inspected for damage on Mazda RX-7?
A:
The oil cooler which is positioned at the bottom of the Radiator but is independent of the radiator can be removed independently. Start with the removal of the engine under-cover and empty the engine oil. The next step involves removing the two oil hoses at the bottom left corner of the cooler with the help of two wrenches without damaging the cooler. Unscrew the bolts that hold the cooler onto the radiator and there are two bolts on the bracket and lower the cooler straight down the vehicle and out of the bottom. Look at the cooler to find out whether it is damaged, cracked, or leaking a lot, and then repair it, by welding it with aluminum, or changing the whole. Reinsert the cooler and loosely fit it with the brackets to the radiator followed by hooking and fastening the oil hoses. Lastly, screw the bracket bolts, put back the engine under-cover, add oil to the engine, turn on the engine and inspect whether it leaks or not.