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The GEARWRENCH 3680D is a 15-piece ratcheting serpentine belt tool set designed for automotive engine accessory belt service. Built from alloy steel, this set gives technicians the range of drive adapters, 6-point sockets, and crowfoot wrenches needed to reach and tension serpentine belts in tight engine bays without switching between multiple tool sets. The ratcheting wrench mechanism reduces repositioning time on belt tensioners where swing arc is limited. The full set ships in a blow-mold case that keeps components organized on the job and in the service vehicle.
This set is used by automotive and light-duty fleet technicians performing serpentine belt replacement, tensioner swaps, and idler pulley service on passenger vehicles and light trucks. The inch-and-metric coverage spans 3/8 inch to 3/4 inch drive adapters and 13 mm to 19 mm 6-point sockets, making it appropriate for both domestic and import engine applications. The crowfoot wrenches cover 13 mm, 14 mm, and 15 mm, which are common tensioner bolt sizes across a wide range of engine families.
Designed for serpentine belt and accessory drive service on passenger vehicles and light trucks requiring 3/8 inch to 3/4 inch drive adapters and 13 mm to 19 mm fastener sizes.
This set is intended for use by trained automotive technicians. Before beginning serpentine belt service, disconnect the vehicle battery if working near electrical components and relieve tension from the tensioner pulley using the appropriate adapter and ratcheting wrench before removing the belt. Confirm all sockets and adapters are fully seated before applying torque to avoid fastener damage. Refer to the vehicle service manual for tensioner release direction and belt routing diagrams.
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