What checks should be performed on seat belts, buckles, latch plates, and guide loops for damage and wear on Mazda 3?

Obvious damage, as well as signs of wear, on check seat belts, buckles, latch plates, and guide loops. Check whether the seat belt reminder light turns on when the key is switched to Run or Start position, then there is a chime sound. The seat belts are made to lock against the sudden stop or impact at the time of driving as well as allowing the shoulder to swing freely at the time of normal driving; make sure that the retractors push the belt back against your chest when you are even driving and make sure that you wind the belt to its full length when the buckle is not locked. In case any of the checks indicate any problems with the seat belt system, change parts accordingly.

Genuine Mazda 3 Seat Belt

Seat Safety Belt

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57 Seat Belts found

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Mazda 3 Lap & Shoulder Belt Part Number: BDYS-57-790B
$50.65 MSRP: $67.54
You Save: $16.89 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Belt'B'(Left), Rear Seat; Lap & Shoulder Belt, Outer Belt Assembly
- Position: Left
- Replaces: BDYS-57-790A, BDYS-57-790
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2023 Mazda 3 | 2.0, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Lap & Shoulder Belt Part Number: BJY6-57-730A
$73.65 MSRP: $98.22
You Save: $24.57 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt'B'(Right), Rear Seat; Lap & Shoulder Belt
- Position: Right
- Replaces: BJY6-57-730
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2018 Mazda 3 | Grand Touring, i Grand Touring, I Sport, i SV, I Touring, s Grand Touring, s Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Lap & Shoulder Belt Part Number: BJY6-57-790A
$77.94 MSRP: $103.93
You Save: $25.99 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt'B'(Left), Rear Seat; Lap & Shoulder Belt
- Position: Left
- Replaces: BJY6-57-790
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2018 Mazda 3 | Grand Touring, i Grand Touring, I Sport, i SV, I Touring, s Grand Touring, s Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Lap & Shoulder Belt Part Number: BHY9-57-740B
$78.23 MSRP: $104.32
You Save: $26.09 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt(C), Rear Seat; Lap & Shoulder Belt
- Position: Center
- Replaces: BHY9-57-740A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2018 Mazda 3 | Grand Touring, i Grand Touring, I Sport, i SV, I Touring, s Grand Touring, s Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BHY1-57-730B
$78.60 MSRP: $104.82
You Save: $26.22 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt'B'(Right), Rear Seat; Lap & Shoulder Belt, Outer Belt Assembly
- Position: Right
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2017-2018 Mazda 3 | Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BHY1-57-790B
$78.60 MSRP: $104.82
You Save: $26.22 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt'B'(Left), Rear Seat; Lap & Shoulder Belt, Outer Belt Assembly
- Position: Left
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2017-2018 Mazda 3 | Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BHY9-57-730A
$78.69 MSRP: $104.93
You Save: $26.24 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt'B'(Right), Rear Seat; Lap & Shoulder Belt, Outer Belt Assembly
- Position: Right
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2017-2018 Mazda 3 | Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BHY9-57-790A
$79.01 MSRP: $105.37
You Save: $26.36 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt'B'(Left), Rear Seat; Lap & Shoulder Belt, Outer Belt Assembly
- Position: Left
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2017-2018 Mazda 3 | Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BDYS-57-740A
$82.20 MSRP: $109.62
You Save: $27.42 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt(C), Rear Seat; Center Belt Assembly, Lap & Shoulder Belt
- Replaces: BDYS-57-740
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2024 Mazda 3 | 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
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BJY7-57-740
$82.20 MSRP: $109.62
You Save: $27.42 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt(C), Rear Seat; Lap & Shoulder Belt
- Position: Center
- Replaces: BHY1-57-740
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2018 Mazda 3 | Grand Touring, i Grand Touring, I Sport, i SV, I Touring, s Grand Touring, s Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BHY9-57-730
$82.70 MSRP: $110.29
You Save: $27.59 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt'B'(Right), Rear Seat; Lap & Shoulder Belt
- Position: Right
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2016 Mazda 3 | i Grand Touring, I Sport, i SV, I Touring, s Grand Touring, s Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BHY1-57-730A
$88.35 MSRP: $117.82
You Save: $29.47 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt'B'(Right), Rear Seat; Lap & Shoulder Belt
- Position: Right
- Replaces: BJY7-57-730, BHY1-57-730, BJY7-57-730A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2016 Mazda 3 | i Grand Touring, I Sport, i SV, I Touring, s Grand Touring, s Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BJY6-57-740B
$92.48 MSRP: $123.32
You Save: $30.84 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt(C), Rear Seat; Lap & Shoulder Belt
- Position: Center
- Replaces: BJY6-57-740A, BJY6-57-740
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2018 Mazda 3 | Grand Touring, i Grand Touring, I Sport, i SV, I Touring, s Grand Touring, s Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BNYV-57-730-30
$19.91 MSRP: $142.75
You Save: $122.84 (87%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt'B'(Right), Rear Seat; Lap & Shoulder Belt
- Position: Right
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2007-2009 Mazda 3 | i, Mazdaspeed, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BNYV-57-790-02
$107.49 MSRP: $143.35
You Save: $35.86 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt'B'(Left), Rear Seat; Lap & Shoulder Belt
- Position: Left
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2007-2009 Mazda 3 | i, Mazdaspeed, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BN8P-57-740E-30
$111.46 MSRP: $148.65
You Save: $37.19 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt(C), Rear Seat; Lap & Shoulder Belt
- Position: Center
- Replaces: BN8P-57-740D-30, BN8P-57-740B-30
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2006 Mazda 3 | i, S, SP23 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BNYV-57-730-02
$121.73 MSRP: $162.33
You Save: $40.60 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt'B'(Right), Rear Seat; Lap & Shoulder Belt
- Position: Right
- Replaces: BN8V-57-730B-02, BN8V-57-730A-02
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2009 Mazda 3 | i, Mazdaspeed, S, SP23 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BCYN-57-730A
$121.89 MSRP: $162.55
You Save: $40.66 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt'B'(Right), Rear Seat; Lap & Shoulder Belt, Outer Belt Assembly
- Position: Right
- Replaced by: BCYN-57-730B
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2023 Mazda 3 | 2.0, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BNYP-57-740-30
$115.59 MSRP: $154.15
You Save: $38.56 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt(C), Rear Seat; Lap & Shoulder Belt
- Position: Center
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2007-2009 Mazda 3 | i, Mazdaspeed, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
View related parts
Mazda 3 Lap & Shoulder Belt Part Number: BNYP-57-740-02
$21.44 MSRP: $28.14
You Save: $6.70 (24%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt(C), Rear Seat; Lap & Shoulder Belt
- Position: Center
- Replaces: BN8P-57-740D-02, BN8P-57-740E-02, BN8P-57-740B-02
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2009 Mazda 3 | i, Mazdaspeed, S, SP23 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS

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1-20 of 57 Results

Mazda 3 Seat Belt

The Mazda 3 Seat Belt is designed in such a way that the drivers and passengers are held in the seat during sudden stops or car crashes, and this cuts down the risk of severe injury or ejection. It is accomplished using four coordinated components, the polyester webbing stretching over the body, a spring-loaded retractor permitting the fabric to slide until it hits the target and latches within milliseconds, a tongue sliding into a buckle, and the buckle itself, which releases at the press of a button. The system also positions the occupants by spreading crash forces across the chest, hips, and shoulders to deploy the airbags correctly as well as prevent ejection. In the 1950s belts were optional extras; however, regulations of the 1960s transformed them into a standard, and the same was reflected in Mazda production. Racing even opposed belts until SCCA rules in 1954 proved them to be worthwhile. The lap designs were made up of a single waist strap in the early days, but the current usage is a three-point design that includes a diagonal shoulder to achieve a more balanced load distribution. The Seat Belt is made with tough webbing that is rated over 28 kN and therefore will not tear even in high-speed crashes. In the present day, Mazda cars are fitted with height-adjustable anchors and pyrotechnic pretensioners that tighten the belt when mishaps are detected by crash sensors. In the existing Mazda model, such as the sporty 2024 Mazda 3, the Seat Belt is compatible with various airbags as the primary restraint system that offers the first line of defense each time the ignition switch is turned.

Looking for Seat Belt with proven quality? Choose OEM Seat Belt. Mazda designs and builds them to strict factory specs. Every piece goes through rigorous quality checks. You'll get parts that fit right and work like new. Shop our huge inventory of OEM Mazda 3 parts. Enjoy the highly competitive prices online. Our site is your one-stop shop. Each genuine 3 part includes a manufacturer's warranty. Buy with confidence. Our return policy is simple and hassle-free. In a rush? Choose expedited delivery at checkout. You'll love the streamlined experience from search to checkout to receiving your order.

Mazda 3 Seat Belt Parts and Q&A

Lap & Shoulder Belt
BN8P-57-630D-30
Q: What checks should be performed on seat belts, buckles, latch plates, and guide loops for damage and wear on Mazda 3?
A:
Obvious damage, as well as signs of wear, on check seat belts, buckles, latch plates, and guide loops. Check whether the seat belt reminder light turns on when the key is switched to Run or Start position, then there is a chime sound. The seat belts are made to lock against the sudden stop or impact at the time of driving as well as allowing the shoulder to swing freely at the time of normal driving; make sure that the retractors push the belt back against your chest when you are even driving and make sure that you wind the belt to its full length when the buckle is not locked. In case any of the checks indicate any problems with the seat belt system, change parts accordingly.