What does the electric cooling fan system include and how does Cooling Fan Assembly and Cooling Fan Relay operate on Mazda 626?

The Electric Cooling Fan System consists of fan motor assembly and blades which is mounted in cowling attached to the radiator, fan relay on left inner fender panel and thermo switch in thermostat housing. When the temperature of the coolant in the thermostat shell reaches 206.6 °F (97 °C), the thermo-switch opens, thus allowing an electric current to pass through the relay which forwards the signal to activate the fan motor. On the contrary, when the temperature drops below 194 °F (90 °C), the switch closes which stops the fan motor. To check the fan motor, follow the wire down to the connector and separate it. Now using an ammeter and battery, check if the motor works on specified current. If not, replace it. For the fan relay, disconnect the connector to the water thermo switch and check whether the fan runs with the ignition switch on, then check for loose connections or a blown fuse, and replace the relay if necessary. Avoid disconnecting the thermo switch with the ignition switched on because the fan will come on automatically. Simply disconnect the connector and remove the switch. Place the switch in hot water to check for continuity to see if it is working alright. When reinstalling, make sure that the O-ring is fitted correctly and will not leak.

Genuine Mazda Cooling Fan Relay

Engine Cooling Fan Relay

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15 Cooling Fan Relays found

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Mazda Relay Part Number: UM46-67-730
$15.04 MSRP: $20.05
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Product Specifications
- Other Name: Relay, N.O.
- Replaces: PE01-67-730
Fits the following Mazda Models:
- 2 | 2011-2014 | Sport, Touring | 4 Cyl 1.5 L GAS
- 3 | 2019-2025, 2012-2013 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, S, Select, Select Sport, i | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
- 5 | 2012-2015, 2006-2010 | Grand Touring, Sport, Touring | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- 6 | 2009-2021 | Carbon Edition, Grand Touring, Grand Touring Reserve, S, Signature, Sport, Touring, i | 4 Cyl 2.5 L GAS, 6 Cyl 3.7 L GAS
- CX-3 | 2016-2021 | Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS
- CX-30 | 2020-2025 | 2.5 Carbon Turbo, 2.5 S, 2.5 S Carbon Edition, 2.5 Turbo, Base, Preferred, Premium, Select | 4 Cyl 2.5 L GAS
- CX-5 | 2013-2025 | 2.5 Carbon Turbo, 2.5 S, 2.5 S Carbon Edition, 2.5 Turbo, 2.5 Turbo Signature, Carbon Edition, Carbon Edition Turbo, Grand Select, Grand Touring, Grand Touring Reserve, Signature, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L DIESEL, 4 Cyl 2.5 L GAS
- CX-50 | 2023-2025 | 2.5 S, 2.5 Turbo, Hybrid Preferred, Hybrid Premium | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
- CX-70 | 2025 | PHEV, Turbo, Turbo S | 4 Cyl 2.5 L PLUG-IN HYBRID EV-GAS (PHEV), 6 Cyl 3.3 L MILD HYBRID EV-GAS (MHEV)
- CX-9 | 2007-2023 | Carbon Edition, Grand Touring, Signature, Sport, Touring, Touring Plus | 4 Cyl 2.5 L GAS, 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
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Mazda Relay Part Number: L110-67-730
$32.99 MSRP: $43.99
You Save: $11.00 (26%)
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Product Specifications
- Other Name: RELAY,N.O.(BLACK 4 PIN); Fan Relay
Fits the following Mazda Models:
- 6 | 2009-2013 | S, i | 4 Cyl 2.5 L GAS, 6 Cyl 3.7 L GAS
- CX-9 | 2010-2015 | Grand Touring, Sport, Touring | 6 Cyl 3.7 L GAS
- MPV | 2002-2006 | ES, LX, LX-SV | 6 Cyl 3.0 L GAS
- MX-5 Miata | 2006-2015 | 25th Anniversary Edition, Base, Club, Club Spec, Grand Touring, SV, Special Edition, Sport, Touring | 4 Cyl 2.0 L GAS
- RX-8 | 2004-2011 | 40th Anniversary Edition, Base, Grand Touring, R3, Shinka, Sport, Touring | 2 Cyl 1.3 L GAS
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Mazda Relay Part Number: LA10-67-740
$38.40 MSRP: $51.21
You Save: $12.81 (26%)
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Product Specifications
- Other Name: Fan Relay, Horn Relay
Fits the following Mazda Models:
- 323 | 1990-1994 | Base, SE | 4 Cyl 1.6 L GAS
- 626 | 1993-1997 | DX, ES, LX | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
- 929 | 1992-1995 | Base | 6 Cyl 3.0 L GAS
- B2200 | 1990-1993 | Base, LE-5, SE-5 | 4 Cyl 2.2 L GAS
- B2600 | 1990-1993 | Base, LE-5, SE-5 | 4 Cyl 2.6 L GAS
- Miata | 1999-2003, 1992-1997 | 10th Anniversary, Base, LE, LS, M Edition, SE, STO, Shinsen | 4 Cyl 1.6 L GAS, 4 Cyl 1.8 L GAS
- Millenia | 1995-2002 | Base, L, Millennium Edition, S | 6 Cyl 2.3 L GAS, 6 Cyl 2.5 L GAS
- MPV | 1989-1998 | Cargo, DX, ES, L, LX, LXE, Passenger | 4 Cyl 2.6 L GAS, 6 Cyl 3.0 L GAS
- MX-3 | 1992-1995 | Base | 4 Cyl 1.6 L GAS
- MX-6 | 1993-1997 | Base, LS, M Edition | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
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Mazda Relay Part Number: PY8W-15-651
$18.48 MSRP: $24.65
You Save: $6.17 (26%)
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Product Specifications
- Other Name: Fan Relay
Fits the following Mazda Models:
- CX-50 | 2023-2025 | 2.5 S, 2.5 Turbo, Hybrid Preferred, Hybrid Premium | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
- MX-30 EV | 2022-2023 | Base, Premium Plus | BATTERY EV (EV/BEV)
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Mazda Relay Part Number: B115-67-730
$26.15 MSRP: $34.88
You Save: $8.73 (26%)
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Product Specifications
- Other Name: Relay, N.O.; Fan Relay, Horn Relay
Fits the following Mazda Models:
- 3 | 2004-2009 | Mazdaspeed, S, SP23, i | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
- 5 | 2012-2013 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
- 6 | 2003-2008 | Mazdaspeed, S, i | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
- CX-7 | 2007-2012 | Grand Touring, SV, Sport, Touring | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- CX-9 | 2007-2009 | Grand Touring, Sport, Touring | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
- MPV | 2000-2006 | DX, ES, LX, LX-SV | 6 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
- MX-5 Miata | 2006-2012 | Base, Club Spec, Grand Touring, SV, Special Edition, Sport, Touring | 4 Cyl 2.0 L GAS
- RX-8 | 2004-2009 | 40th Anniversary Edition, Base, Grand Touring, R3, Shinka, Sport, Touring | 2 Cyl 1.3 L GAS
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Mazda Fan Relay Part Number: LC10-67-730
$26.59 MSRP: $35.46
You Save: $8.87 (26%)
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Product Specifications
- Other Name: Relay
Fits the following Mazda Models:
- MX-3 | 1992-1995 | Base, GS, Precedia, SE | 6 Cyl 1.8 L GAS
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Mazda Relay Part Number: B150-67-730
$28.15 MSRP: $37.54
You Save: $9.39 (26%)
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Product Specifications
- Other Name: Relay, N.O.; Fan Relay, Horn Relay
Fits the following Mazda Models:
- Miata | 2001-2005 | Base, LS, Mazdaspeed, SE, Shinsen | 4 Cyl 1.8 L GAS
- MPV | 2000-2006 | DX, ES, LX, LX-SV | 6 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
- Protege | 2001-2003 | DX, ES, LX, MP3, Mazdaspeed | 4 Cyl 1.6 L GAS, 4 Cyl 2.0 L GAS
- Protege5 | 2002-2003 | Base | 4 Cyl 2.0 L GAS
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Mazda Relay Part Number: KA32-67-720
$32.80 MSRP: $43.74
You Save: $10.94 (26%)
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Product Specifications
- Other Name: Relay, Transfer; Fan Relay
Fits the following Mazda Models:
- Protege | 1996-1998 | DX, ES, LX | 4 Cyl 1.5 L GAS, 4 Cyl 1.8 L GAS
- RX-7 | 1993-1995 | Base, R1, R2, Touring | 2 Cyl 1.3 L GAS
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Mazda Relay Part Number: H270-67-740
$36.25 MSRP: $48.34
You Save: $12.09 (26%)
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Product Specifications
- Other Name: Relay, W/O Bracket; Fan Relay
Fits the following Mazda Models:
- 323 | 1990-1994 | Base, SE | 4 Cyl 1.6 L GAS
- MPV | 1996-1998 | DX, ES, LX | 6 Cyl 3.0 L GAS
- Protege | 1990-1995 | 4WD, Base, DX, ES, LX, SE | 4 Cyl 1.5 L GAS, 4 Cyl 1.8 L GAS
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Mazda Relay Part Number: G110-67-730
$27.83 MSRP: $37.10
You Save: $9.27 (25%)
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Product Specifications
- Other Name: Relay, Normal Open; Fan Relay
Fits the following Mazda Models:
- 3 | 2019-2025, 2007-2009 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Mazdaspeed, Preferred, Premium, S, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- 6 | 2014-2021, 2003-2008 | Carbon Edition, Grand Touring, Grand Touring Reserve, Mazdaspeed, S, Signature, Sport, Touring, i | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
- CX-3 | 2016-2021 | Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS
- CX-30 | 2020-2025 | 2.5 Carbon Turbo, 2.5 S, 2.5 S Carbon Edition, 2.5 Turbo, Base, Preferred, Premium, Select | 4 Cyl 2.5 L GAS
- CX-5 | 2013-2025 | 2.5 Carbon Turbo, 2.5 S, 2.5 S Carbon Edition, 2.5 Turbo, 2.5 Turbo Signature, Carbon Edition, Carbon Edition Turbo, Grand Select, Grand Touring, Grand Touring Reserve, Signature, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L DIESEL, 4 Cyl 2.5 L GAS
- CX-50 | 2023-2025 | 2.5 S, 2.5 Turbo, Hybrid Preferred, Hybrid Premium | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
- CX-7 | 2007-2012 | Grand Touring, SV, Sport, Touring | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- CX-70 | 2025 | PHEV, Turbo, Turbo S | 4 Cyl 2.5 L PLUG-IN HYBRID EV-GAS (PHEV), 6 Cyl 3.3 L MILD HYBRID EV-GAS (MHEV)
- CX-9 | 2007-2023 | Carbon Edition, Grand Touring, Signature, Sport, Touring, Touring Plus | 4 Cyl 2.5 L GAS, 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
- CX-90 | 2024-2025 | PHEV, Turbo, Turbo S | 4 Cyl 2.5 L PLUG-IN HYBRID EV-GAS (PHEV), 6 Cyl 3.3 L MILD HYBRID EV-GAS (MHEV)
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Mazda Fan Relay Part Number: J110-67-730
$35.83 MSRP: $47.77
You Save: $11.94 (25%)
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Product Specifications
- Other Name: Relay, N.O.
- Replaces: GA30-67-730, KA30-67-730
Fits the following Mazda Models:
- 626 | 1993-1997 | DX, ES, LX | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
- MX-6 | 1993-1997 | Base, LS, M Edition | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
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Mazda Fan Relay Part Number: KE10-67-730
$52.58 MSRP: $70.11
You Save: $17.53 (25%)
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Product Specifications
- Other Name: Relay
Fits the following Mazda Models:
- RX-7 | 1993-1995 | Base, R1, R2, Touring | 2 Cyl 1.3 L GAS
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Mazda Fan Relay Part Number: EE12-67-720
$53.95 MSRP: $71.95
You Save: $18.00 (26%)
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Product Specifications
- Other Name: RELAY (BLUE 5 PIN)
Fits the following Mazda Models:
- Millenia | 1995-2002 | Base, L, Millennium Edition, S | 6 Cyl 2.3 L GAS, 6 Cyl 2.5 L GAS
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Mazda Relay Part Number: H300-67-740
Product Specifications
- Other Name: Fan Relay, Horn Relay
Fits the following Mazda Models:
- 626 | 1988-1992 | DX, GT, LE, LX, Turbo, Turbo 4WS | 4 Cyl 2.2 L GAS
- Millenia | 1995-2002 | Base, L, Millennium Edition, S | 6 Cyl 2.3 L GAS, 6 Cyl 2.5 L GAS
- MX-6 | 1990-1992 | DX, GT, GT 4WS, LE, LX | 4 Cyl 2.2 L GAS
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Mazda Relay Part Number: KC29-67-730
Product Specifications
- Other Name: Relay, Transfer; Fan Relay
Fits the following Mazda Models:
- 626 | 1998-2002 | DX, ES, LX | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS

Mazda Cooling Fan Relay

The Mazda Cooling Fan Relay is a component that helps in the cooling of the radiator at low speeds. This protects the engine against heat and activates at low speeds, thus saving electrical power. It is a small component yet has played a big role in every Mazda. Famed for nimble-footedness and KODO design, Mazda makes cars that feel lively on a twisty road, while their efficient SKYACTIV engines engender them with more work from every drop of fuel. The i-ACTIVSENSE features like lane-keep assist and radar cruise also add to the car's features without making it boring. Mazda's advanced mild hybrid and electric options show the brand's commitment to cleaner mobility. Additionally, available i-ACTIV all-wheel drive lets drivers take on rain-slick streets or rough trails with added confidence. Mazda has built a name for itself with its mix of performance, innovation, and everyday practicality. Evidence of the same cohesive thinking by the engineers shows in the Cooling Fan Relay, a compact electrical switch that connects a temperature signal with a fan motor to enhance radiator airflow when natural ram air is insufficient. The relay closes when coolant reaches a preset heat level or when the air conditioner is activated. This powers the electric fan. The hot fluid will shed heat through the radiator fins. This relay cuts off the unnecessary load when the temperature becomes lower, thus reducing noise and prolonging the life of the components. The Mazda Cooling Fan Relay allows the cooling fan to cycle on and off as required to maintain optimal engine temperature across traffic jams, city cruises, and highway sprints.

You'll get great performance and real durability when you pick genuine OEM Cooling Fan Relay. Mazda builds these using high-quality materials and official factory methods to ensure they hold up mile after mile. You deserve that Mazda reliability without the headache of cheap knockoffs. It is easy to find exactly what you need in our huge inventory of genuine parts. Plus, every OEM part carries a real manufacturer's warranty for your peace of mind. You will love our low prices too. Order today and we will ship your brand-new parts fast. They often reach your door in just a few days.

Mazda Cooling Fan Relay Parts and Q&A

Relay
H300-67-740
Q:
What does the electric cooling fan system include and how does Cooling Fan Assembly and Cooling Fan Relay operate on Mazda 626?
A:
The Electric Cooling Fan System consists of fan motor assembly and blades which is mounted in cowling attached to the radiator, fan relay on left inner fender panel and thermo switch in thermostat housing. When the temperature of the coolant in the thermostat shell reaches 206.6 °F (97 °C), the thermo-switch opens, thus allowing an electric current to pass through the relay which forwards the signal to activate the fan motor. On the contrary, when the temperature drops below 194 °F (90 °C), the switch closes which stops the fan motor. To check the fan motor, follow the wire down to the connector and separate it. Now using an ammeter and battery, check if the motor works on specified current. If not, replace it. For the fan relay, disconnect the connector to the water thermo switch and check whether the fan runs with the ignition switch on, then check for loose connections or a blown fuse, and replace the relay if necessary. Avoid disconnecting the thermo switch with the ignition switched on because the fan will come on automatically. Simply disconnect the connector and remove the switch. Place the switch in hot water to check for continuity to see if it is working alright. When reinstalling, make sure that the O-ring is fitted correctly and will not leak.