Genuine Mazda Relay Block

Relay Fuse Box

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72 Relay Blocks found

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Mazda Fuse & Relay Box Part Number: TK48-66-760
$174.36 MSRP: $232.53
You Save: $58.17 (26%)
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Product Specifications
- Other Name: Block, Main Fuse
Fits the following Mazda Models:
- 6 | 2017-2021 | Carbon Edition, Grand Touring, Grand Touring Reserve, Signature, Sport, Touring | 4 Cyl 2.5 L GAS
- CX-9 | 2016-2023 | Carbon Edition, Grand Touring, Signature, Sport, Touring, Touring Plus | 4 Cyl 2.5 L GAS
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Mazda Fuse & Relay Box Part Number: GHP9-66-760
$145.11 MSRP: $193.52
You Save: $48.41 (26%)
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Product Specifications
- Other Name: Block, Main Fuse
Fits the following Mazda Models:
- 6 | 2014-2016 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
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Mazda Module Part Number: BCKA-67-5L0G
$177.31 MSRP: $236.47
You Save: $59.16 (26%)
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Product Specifications
- Other Name: Unit, Electric Supply-Driver
- Position: Driver Side
- Replaces: BCKA-67-5L0E, BCKA-67-5L0D, BCKA-67-5L0F
Fits the following Mazda Models:
- 3 | 2019-2025 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda Fuse & Relay Box Part Number: TK24-66-760
$185.35 MSRP: $247.19
You Save: $61.84 (26%)
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Product Specifications
- Other Name: Block, Main Fuse
Fits the following Mazda Models:
- CX-9 | 2013-2015 | Grand Touring, Sport, Touring | 6 Cyl 3.7 L GAS
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Mazda Fuse & Relay Box Part Number: GHP9-66-730
$16.16 MSRP: $21.55
You Save: $5.39 (26%)
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Product Specifications
- Other Name: Block, Fuse
Fits the following Mazda Models:
- 6 | 2014-2021 | Carbon Edition, Grand Touring, Grand Touring Reserve, Signature, Sport, Touring | 4 Cyl 2.5 L GAS
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Mazda Fuse & Relay Box Part Number: B62S-66-760
$198.29 MSRP: $264.44
You Save: $66.15 (26%)
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Product Specifications
- Other Name: Block, Main Fuse
- Replaces: BHR1-66-760, BHR1-66-760A
Fits the following Mazda Models:
- 3 | 2014-2018 | Grand Touring, I Sport, I Touring, Sport, Touring, i Grand Touring, i SV, s Grand Touring, s Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda Relay Box Part Number: TD11-66-750
$16.78 MSRP: $129.31
You Save: $112.53 (88%)
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Product Specifications
- Other Name: Block, Relay
Fits the following Mazda Models:
- CX-9 | 2007-2009 | Grand Touring, Sport, Touring | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
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Mazda Junction Block Part Number: MH01-30-2G0
$639.95 MSRP: $874.42
You Save: $234.47 (27%)
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Product Specifications
- Other Name: Box, Junction
Fits the following Mazda Models:
- MX-30 EV | 2022-2023 | Base, Premium Plus | BATTERY EV (EV/BEV)
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Mazda Fuse & Relay Box Part Number: ZZDB-67-010
$686.16 MSRP: $937.57
You Save: $251.41 (27%)
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Product Specifications
- Other Name: Harness, Front
Fits the following Mazda Models:
- Tribute | 2009 | Hybrid | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
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Mazda Fuse & Relay Box Part Number: GR6H-67-010H
$1030.19 MSRP: $1407.64
You Save: $377.45 (27%)
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Product Specifications
- Other Name: Harness, Front
- Replaces: GR6H-67-010D, GR6H-67-010E, GR6H-67-010G, GR6H-67-010F, GR6H-67-010A, GR6H-67-010B, GR6H-67-010C, GR6H-67-010
Fits the following Mazda Models:
- 6 | 2003-2008 | S | 6 Cyl 3.0 L GAS
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Mazda Fuse & Relay Box Part Number: GS1D-66-730
$15.45 MSRP: $20.60
You Save: $5.15 (25%)
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Product Specifications
- Other Name: Block, Fuse
Fits the following Mazda Models:
- 6 | 2009-2013 | S, i | 4 Cyl 2.5 L GAS, 6 Cyl 3.7 L GAS
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Mazda Relay & Fuse Plate Part Number: GRT8-66-750
$22.60 MSRP: $30.15
You Save: $7.55 (26%)
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Product Specifications
- Other Name: Box, Relay; Relay Box
- Position: Passenger Side
- Replaces: GRT7-66-750
Fits the following Mazda Models:
- 6 | 2018-2021 | Sport, Touring | 4 Cyl 2.5 L GAS
- CX-5 | 2017-2025 | 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 2.2 L DIESEL, 4 Cyl 2.5 L GAS
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Mazda Lower Cover Part Number: KD45-66-767
$24.91 MSRP: $33.22
You Save: $8.31 (26%)
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Product Specifications
- Other Name: Cover, Under-Main Fuse Black; Fuse & Relay Box, Fuse & Relay Box Lower Cover
- Position: Passenger Side
Fits the following Mazda Models:
- 6 | 2014-2017 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
- CX-5 | 2017-2025 | 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 2.2 L DIESEL, 4 Cyl 2.5 L GAS
- CX-9 | 2019-2023 | Carbon Edition, Grand Touring, Signature, Sport, Touring, Touring Plus | 4 Cyl 2.5 L GAS
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Mazda Box, Relay Part Number: GRT9-66-750
$28.34 MSRP: $37.79
You Save: $9.45 (26%)
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Product Specifications
- Other Name: Relay Box
- Position: Driver Side
- Replaces: GRT6-66-750
Fits the following Mazda Models:
- CX-5 | 2017-2025 | 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 2.2 L DIESEL, 4 Cyl 2.5 L GAS
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Mazda Block, Fuse Part Number: KR9P-66-730
$33.10 MSRP: $44.14
You Save: $11.04 (26%)
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Product Specifications
- Other Name: BLOCK,FUSE; Fuse & Relay Box
Fits the following Mazda Models:
- 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-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 Relay Box Part Number: EG23-66-750
$42.60 MSRP: $56.81
You Save: $14.21 (26%)
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Product Specifications
- Other Name: Box, Relay
- Replaces: EG21-66-750A
Fits the following Mazda Models:
- CX-7 | 2007-2012 | Grand Touring, SV, Sport, Touring | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda Relay Box Part Number: TK79-66-750A
$43.51 MSRP: $58.04
You Save: $14.53 (26%)
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Product Specifications
- Other Name: Block, Relay
Fits the following Mazda Models:
- CX-9 | 2016-2023 | Carbon Edition, Grand Touring, Signature, Sport, Touring, Touring Plus | 4 Cyl 2.5 L GAS
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Mazda Relay Box Part Number: TE71-66-750
$44.13 MSRP: $58.84
You Save: $14.71 (25%)
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Product Specifications
- Other Name: Block, Relay
Fits the following Mazda Models:
- CX-9 | 2010-2015 | Grand Touring, Sport, Touring | 6 Cyl 3.7 L GAS
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Mazda Relay Box Part Number: TE70-66-750
$92.65 MSRP: $123.56
You Save: $30.91 (26%)
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Product Specifications
- Other Name: Block, Relay
Fits the following Mazda Models:
- CX-9 | 2010-2015 | Grand Touring, Sport, Touring | 6 Cyl 3.7 L GAS
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Mazda Fuse & Relay Box Part Number: BBM6-66-760
$122.44 MSRP: $163.29
You Save: $40.85 (26%)
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Product Specifications
- Other Name: Block, Main Fuse
Fits the following Mazda Models:
- 3 | 2011-2013 | Mazdaspeed, S, i | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS

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1-20 of 72 Results

Mazda Relay Block

Mazda Relay Block is designed to provide a solid base that assists in holding the moving components of the engine in their place by means of perfect alignment. This allows motion to run smoothly by controlling heat and oil. Mazda cars are known for their sharp handling, stylish KODO lines, and SKYACTIV technology, which squeezes more mileage from every drop of petrol. Drivers appreciate how the i-ACTIVSENSE safety kit helps watch the road so they can relax and enjoy the ride. The company also experiments with electric drives and mild hybrids, which means Mazda always plans ahead while having fun driving. The Mazda lineup's Japanese credentials show in the precision fit and finish, while the balanced steering and carefully tuned suspensions ensure that every Mazda feels more connected to the driver whether cruising downtown or carving up a country road. The Relay Block is at the heart of this lineup as the engine's backbone. It supports the crankshaft, pistons, and cylinder head while locking the whole assembly to the chassis. It includes coolant channels that allow the liquid to flow around the cast cylinders to absorb heat and also the oil galleries that provide lubricating grease to the bearings and then back to the pan. All this helps with the endurance for your daily commute or week-long adventure. The seal of the machined surfaces is achieved with the help of gaskets. The use of strong aluminum and iron liners enables the Mazda Relay Block to resist stress, lose weight, and transfer heat effectively season after season.

You'll get great performance and real durability when you pick genuine OEM Relay Block. 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.