The Ultimate Guide to Finding the Best Serpentine Belt for Optimal Performance

Allows for the operation of various pulleys, and drive belt accessories, with the use of a single belt

Creates a secure point of contact with the pulley, which allows for traction

Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type

GM regularly updates production and service part designs to integrate new materials and technologies

Allows for the operation of various pulleys, and drive belt accessories, with the use of a single belt

Creates a secure point of contact with the pulley, which allows for traction

Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type

GM regularly updates production and service part designs to integrate new materials and technologies

Allows for the operation of various pulleys, and drive belt accessories, with the use of a single belt

Creates a secure point of contact with the pulley, which allows for traction

Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type

GM regularly updates production and service part designs to integrate new materials and technologies

Meets or Exceeds OEM Specifications; Long-life EPDM Rubber Compound

Proprietary rubber formulation for quiet operation

Synthetic tension members with balanced twist cord ensures neutral tracking when running

AutoCare Association recommends inspecting belts at 60,000 miles and replacing at 90,000 miles

Length: 49.5 inch or 1257 mm; Alternate Part Number 6PK1257

Allows for the operation of various pulleys, and drive belt accessories, with the use of a single belt

Creates a secure point of contact with the pulley, which allows for traction

Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type

GM regularly updates production and service part designs to integrate new materials and technologies

Poly-V or Micro-V belt designed and engineered to transmit energy between components with the use of pulleys.

Maintains its tension during operation due to its heat treated cords inside the EPDM rubber.

Resistant to high temperatures, oil, and friction.

Optimizing energy transmission by reducing slip on pulleys due to its surface area.

The design of the belt permits high flexibility for installation.

Allows for the operation of various pulleys, and drive belt accessories, with the use of a single belt

Creates a secure point of contact with the pulley, which allows for traction

Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type

GM regularly updates production and service part designs to integrate new materials and technologies

【Premium Material】Our serpentine belt is made of high strength heat and crack-resistant EPDM, it not only increases the toughness for wear resistance but also helps to reduces noise.

【Strong Tension】V-ribbed serpentine belt has strong tensile ensures belt drive efficiency and strength to carry high horsepower loads without stretching.

【Quiet Operation】The serpentine belt could provide quiet run performance for better grip, and ensure less slip resulting in a quieter operation.

【Length】4PK960 A/C drive belt 4 Ribs x 960mm or 4 Ribs x 37.8", please confirm whether it is consistent with the Length you need.

【OE Number】12554028,12569346,12576447

【Interchange Part Number】378K4,4PK960,4040377,K040378,5040378

Poly-V or Micro-V belt designed and engineered to transmit energy between components with the use of pulleys.

Maintains its tension during operation due to its heat treated cords inside the EPDM rubber.

Resistant to high temperatures, oil, and friction.

Optimizing energy transmission by reducing slip on pulleys due to its surface area.

The design of the belt permits high flexibility for installation.

【Fitment】The Serpentine Belts Tool Kit is designed for 2007+ Model Mini Cooper N12, N14, N16 & N18 Engines. Compatible with Mini #116210.

【Function】Unique elbow design that uses the lever principle to help compress and release the belt. It can overcome the narrow space obstacle in the engine compartment, easily accessing the narrow location, aligning and securing the tensioner hole and upper spring, allowing the belt to be removed.

【Superior Material】Made of high quality heat-treated steel , our belt tool kit keeps sturdy and durable performance. Black finish with vinyl handle for better appearance, better rust and abrasion resistance.

【1+1】Comes with a one large and one small 12 point wrench. Both two long handles are 22 " (55 cm) in length.

【100% Satisfaction Guarantee】The johntruck Team aims to provide you the best products and services. Support 30 days returns and 12 months warranty. Please feel free to contact us if you have any question.