Serpentine Belt K Profile 45.70 in. EPDM Polyester - 1120457

Part#: AAA301120457

Features and Benefits

  • Serpentine belt type for multi-accessory drive applications on commercial engines
  • EPDM belt material with polyester cord for superior heat resistance and tensile strength
  • SAE J1459 compliant with 40-degree rib angle and cross section K for verified performance
  • Twelve-rib configuration delivering efficient power transfer across multiple driven accessories
  • Effective length of 45.70 in. ensures precise fitment and correct belt tension at installation
  • OE performance grade with 46.20 in. outside circumference for direct original-equipment fitment

Warranty

Warranty Up to 3 years warranty

Please contact customer service to know more details

Belt MaterialEPDM
ColorBlack
Cord MaterialPolyester
Cross Section DesignationK
Effective Length45.70 in.
Grade TypeOE Performance
Outside Circumference46.20 in.
Rib Angle40
Rib Quantity12
SAE StandardJ1459
Thickness0.17 in.
Top CoggedNo
Top Width42.20 in.
Belt TypeSerpentine Belt
Interchange
12K457
12PK1161
12PK1165
25120457
5120457
K120457
K120457HD
K120457RF
The Belt serpentine design features 12-rib EPDM construction with a polyester cord, engineered to OE performance standards for reliable power transmission on commercial vehicles. Meeting SAE J1459 specifications, the unit delivers consistent drive output and dependable operation across a wide range of engine configurations.
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