Poly-V belt Dayco 5100921

DAYCO 5100921 belongs to poly-V belt, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 5100921 and any equivalents.

The Dayco 5100921 is a 10-rib automotive serpentine belt with an effective length of 2340.1 mm and a width of 35.05 mm. This multi-rib belt drives multiple accessories from a single path on the engine front. It is identified in the field by the 10PK2340 marking on the back.

Serpentine belts like this one are used on engine accessory drives where one belt turns the alternator, power steering pump, water pump, A/C compressor and other pulleys. The 10-rib profile distributes load across ten ribs, and the 2340.1 mm effective length sets the path around the pulleys. This belt is not a V-belt, cogged belt or timing belt; it is a Poly-V / multi-rib belt for the accessory drive.

To confirm fit, read the marking on the old belt. The code 5100921 and the alias 10PK2340 identify this Dayco belt. Match the rib count (10), the effective length (2340.1 mm), and the width (35.05 mm) to the original. Also inspect pulley alignment and rib wear before ordering.

When requesting a quote, send the part number 5100921 or 10PK2340, the rib count and length from the old belt, and the engine or application details. The MR Industrial Accessories team can confirm the right belt or suggest an equivalent based on the data you provide.