What role does the drive belt play in an engine's operation, and how should it be inspected and replaced on Mazda 6?

The front of the engine has a serpentine drivebelt which is very important in the functioning of the engine and its components which drives the alternator, power steering pump (except 3.7L V6), water pump (in four-cylinder models), and air conditioning compressor. It will need periodic inspection because of wear, but this does not mean that it will need replacement beyond 100,000 miles. To test the drivebelt, increase the front of the car, take off the right front wheel and splash shield so it is easier to see the belt, and examine it to check for cracks, fraying, and glazing as well as examining the pulleys. In case of replacement, unscrew the negative battery cable, loosen the lug nuts in the right front wheel and use jackstands to hold the vehicle. Take out the right front wheel and splash shield, record the routing of the belts and release the tensioner to loosen the old belt. Install the new belt on the correct pulleys making sure that it fits properly, reattach the splash shield and wheel and lower the vehicle attaching lug nuts. In the 3.0L V6, the water pump drivebelt is driven by a pulley on the exhaust camshaft, whereas the 3.7L V6 engine has a special design of power steering pump to stretch onto the drivebelt. When changing the drivebelt of the water pump, unscrew the cover, and then pull the old belt off with the help of a flexible strap and then pull the new belt correctly around the pulleys. With the power steering pump belt, follow it around the crankshaft pulley until it reaches the back of the pump making sure it is correctly fitted. In order to change the accessory drivebelt tensioner, loot the bolts holding the old one and screw the new one in and then screw the bolts to the required torque.

Genuine Mazda 6 Drive Belt

Serpentine Belt

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13 Drive Belts found

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Mazda 6 Power Steering Belt Part Number: CY01-15-907B
$22.06 MSRP: $29.43
You Save: $7.37 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Belt'V'; Power Steering Belt
- Replaces: CY01-15-907, CY01-15-907A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2009-2013 Mazda 6 | S | 6 Cyl 3.7 L GAS
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Mazda 6 Serpentine Belt Part Number: L3P9-15-909
$28.66 MSRP: $38.22
You Save: $9.56 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Belt'V'
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2006-2008 Mazda 6 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda 6 Serpentine Belt Part Number: CY01-15-908D
$34.05 MSRP: $45.40
You Save: $11.35 (25%)
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Product Specifications
- Other Name: Belt, V; Alternator Belt
- Replaces: CY01-15-908B, CY01-15-908C, ZZD2-18-381, ZZD2-18-381A, CY01-15-908A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2009-2013 Mazda 6 | S | 6 Cyl 3.7 L GAS
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Mazda 6 Serpentine Belt Part Number: L321-15-909B
$33.43 MSRP: $44.58
You Save: $11.15 (26%)
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Product Specifications
- Other Name: Belt'V'
- Replaces: L321-15-909A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2003-2005 Mazda 6 | i, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda 6 Serpentine Belt Part Number: L3K9-15-909A
$37.94 MSRP: $50.59
You Save: $12.65 (25%)
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Product Specifications
- Other Name: Belt'V'; Serpentine Belt
- Replaces: L3K9-15-909-9U, L3K9-15-909A-9U, L3K9-15-909
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2006-2007 Mazda 6 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda 6 Serpentine Belt Part Number: L518-15-909A
$41.76 MSRP: $55.69
You Save: $13.93 (26%)
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Product Specifications
- Other Name: Belt'V'; Serpentine Belt
- Replaces: L518-15-909A-9U
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2009-2013 Mazda 6 | i | 4 Cyl 2.5 L GAS
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Mazda 6 Serpentine Belt Part Number: AJ03-18-381
$15.34 MSRP: $20.45
You Save: $5.11 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Belt'V'; Water Pump Belt
- Replaces: GY01-18-381
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2003-2004 Mazda 6 | i, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda 6 Water Pump Belt Part Number: P301-15-908
$17.14 MSRP: $22.86
You Save: $5.72 (26%)
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Product Specifications
- Other Name: Belt, V
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2018-2021 Mazda 6 | Carbon Edition, Grand Touring, Grand Touring Reserve, Signature | 4 Cyl 2.5 L GAS
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Mazda 6 Water Pump Belt Part Number: PY01-15-908
$18.19 MSRP: $24.26
You Save: $6.07 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Belt, V
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2021 Mazda 6 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
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Mazda 6 Serpentine Belt Part Number: PY01-15-909A
$37.90 MSRP: $50.55
You Save: $12.65 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt'V'; Alternator Belt
- Replaces: PY01-15-909
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2021 Mazda 6 | Carbon Edition, Grand Touring, Grand Touring Reserve, Signature, Sport, Touring | 4 Cyl 2.5 L GAS
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Mazda 6 Water Pump Belt Part Number: AJ58-15-908
$22.19 MSRP: $29.58
You Save: $7.39 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Belt, V From:11/11/04
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2008 Mazda 6 | i, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda 6 Serpentine Belt Part Number: AJ57-15-909A
Product Specifications
- Other Name: Belt'V'
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2003-2008 Mazda 6 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
View related parts
Mazda 6 Water Pump Belt Part Number: AJ57-15-908
Product Specifications
- Other Name: Belt, V To: 11/11/04
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2008 Mazda 6 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS

Mazda 6 Drive Belt

The Mazda 6 Drive Belt supports the rotation of important parts, allowing the crankshaft to transmit power to the compressor of the air conditioner and other parts. This Drive Belt is a flexible loop that encircles the pulleys, converting rotational energy into a consistent supply of movement to all the attached parts and at the same time absorbs minor jolts that would otherwise damage the parts. The majority of contemporary designs are based on a serpentine or multi-groove design, which is valued because it has an efficiency of 90 to 98 percent, can be routed around multiple pulleys with ease, and can accommodate minor misalignment. Previous Mazda models applied single V-belts, and each one was applied to drive one or two parts, a design that is more likely to slip but is appreciated for providing good traction over short ranges. Replacing many V-belts with a single large serpentine belt made the under-hood space less complex, cut down on weight, and decreased points for replacement. Whether it is the belt or not, Mazda drivers should be guaranteed that the belt material will last approximately 100,000 miles and that it has to be replaced if it becomes frayed, cracked, or glazed, as a collapsed Drive Belt will shut down the operation of the part and may lead to an overheated and empty battery. Other parts of the engine have special toothed timing belts to operate camshafts without being attached to the part circuit. Due to the temperature tolerance of from 35 to 85 degrees Celsius and the shock-absorbing properties of its rubber compound, the second generation Mazda 6 continues to enjoy the quality of easy and quiet part power transfer, which helps every Mazda owner avoid roadside failure.

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Mazda 6 Drive Belt Parts and Q&A

Serpentine Belt
AJ03-18-381
Q: What role does the drive belt play in an engine's operation, and how should it be inspected and replaced on Mazda 6?
A:
The front of the engine has a serpentine drivebelt which is very important in the functioning of the engine and its components which drives the alternator, power steering pump (except 3.7L V6), water pump (in four-cylinder models), and air conditioning compressor. It will need periodic inspection because of wear, but this does not mean that it will need replacement beyond 100,000 miles. To test the drivebelt, increase the front of the car, take off the right front wheel and splash shield so it is easier to see the belt, and examine it to check for cracks, fraying, and glazing as well as examining the pulleys. In case of replacement, unscrew the negative battery cable, loosen the lug nuts in the right front wheel and use jackstands to hold the vehicle. Take out the right front wheel and splash shield, record the routing of the belts and release the tensioner to loosen the old belt. Install the new belt on the correct pulleys making sure that it fits properly, reattach the splash shield and wheel and lower the vehicle attaching lug nuts. In the 3.0L V6, the water pump drivebelt is driven by a pulley on the exhaust camshaft, whereas the 3.7L V6 engine has a special design of power steering pump to stretch onto the drivebelt. When changing the drivebelt of the water pump, unscrew the cover, and then pull the old belt off with the help of a flexible strap and then pull the new belt correctly around the pulleys. With the power steering pump belt, follow it around the crankshaft pulley until it reaches the back of the pump making sure it is correctly fitted. In order to change the accessory drivebelt tensioner, loot the bolts holding the old one and screw the new one in and then screw the bolts to the required torque.