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4.3 · 3 reviews
SKU: DL-433K6
Duralast

Duralast 43 19/64 in Serpentine Belt 433K6

$33.99
FREE delivery · Delivery by Oct 18
  • Free shipping over $25
  • Next-business-day ship
  • Easy returns
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Shipping Information

Free shipping on orders over $25. Most items ship next business day after your order is placed.

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Returns are accepted when the product is in its original, unopened container. Contact us if you have questions about your order.

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Product facts

About This Item

  • Drive superior power transmission performance through an efficient design meticulously crafted to meet SAE standards.
  • Experience extended life and increased long-term reliability with high tensile HMLS cord construction.
  • Benefit from specialized material composition utilizing special modulus fibre-loaded rubber for demanding applications.
  • Enjoy a quieter ride through reduced noise levels during everyday operation.
  • Ensure a precise fit and standard replacement capability with a 43.3-inch effective length and 6-rib quantity.

Details

Product Description

Get superior power transmission performance with the Duralast 43.30 in Serpentine Belt 433K6. This reliable serpentine belt drives efficiency and power for your demanding applications. Meticulously crafted to meet SAE standards, the Duralast Poly-V Belt delivers unmatched strength and reliability. Featuring high tensile HMLS cords and special modulus fibre-loaded rubber, this standard replacement belt helps reduce noise levels while increasing long-term reliability. Backed by a 12-month warranty, this belt features an effective length of 43.3 inches and a 6-rib quantity.

Technical data

Product Specifications

Part #
433K6
SKU #
315417
Rib Quantity
6
Grade Type
Standard Replacement
Material
Ethylene Propylene Terpolymer (EPDM)
Effective Length
43 19/64 in
Color
Black
Cross Section Designation
K
Type
Standard

Brand

Brand Story

Alternator, battery, and brake rotor arranged on dark concrete

Replacement parts

Duralast

Parts

Duralast

Batteries, brakes, and belts in the Duralast line

Duralast is a replacement-parts brand covering batteries, brake parts, belts, and rotating electrical. District Mailing Auto carries selected Duralast items from that lineup.

Shop Duralast

  • Lineup

    Under-car and under-hood

    The brand covers batteries, brake parts, belts, and rotating electrical.

  • Application

    Belts and brakes

    Typical jobs include serpentine belts and disc-brake service.

  • Storefront

    At District Mailing Auto

    Shop the Duralast products currently in the catalog.

Customer Reviews

4.3

Based on 3 reviews

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E
Emma S.Verified Buyer
12/14/2025

Exactly what I needed

Easy to order and arrived quickly. Product matched the listing and works great.

D
Dana H.Verified Buyer
10/02/2025

Solid purchase

Quality feels premium and it fits my needs well.

A
Alex P.Verified Buyer
01/09/2025

Fast shipping too

Impressed with the quality for the price. Will be back for more.