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4.7 · 7 reviews
SKU: DL-1143K6
Duralast

Duralast 114 1/4 in Serpentine Belt 1143K6

$25.99
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.

Returns Policy

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

  • Made with treated polyester cord to reduce belt stretch
  • Meets OEM requirements
  • Constructed with heat and ozone resistant EPDM rubber
  • Fiber is added to the rib stock to reinforce the rubber and reduce noise from worn and misaligned pulleys

Details

Product Description

This Duralast™ multi v-belt is designed to provide better belt-to-pulley contact. The specialized rubber compound incorporates a high temperature polymer formulated to maximize load carrying requirements and belt life. This Duralast™ belt has been constructed and engineered to meet the stringent demands of today s automotive drive systems. The Duralast™ multi v-belt delivers long-lasting dependable belt life.

Technical data

Product Specifications

Part #
1143K6
SKU #
315415
Minimum Operating Temperature
-45 Deg. F
Maximum Operating Temperature
265 Deg. F
Rib Quantity
6
Outside Circumference
115 in
Type
Standard
Grade Type
Standard Replacement
Material
Ethylene Propylene Terpolymer (EPDM)
Top Width
13/16 in
Belt Material
EPDM
Effective Length
114 1/4 in
Color
Black
Cord Material
Polyester
Cross Section Designation
K

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

4.7

Based on 7 reviews

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42
30
20
10
R
Riley N.Verified Buyer
06/08/2025

No complaints

Quick delivery and the product exceeded my expectations.

M
Maria K.Verified Buyer
08/17/2025

Would buy again

Does what it is supposed to do. Happy with this purchase.

T
Ted R.Verified Buyer
02/03/2025

Works perfectly

Setup was simple and it has worked reliably since day one.

P
Pat M.Verified Buyer
11/28/2025

Better than expected

Reliable product and smooth buying experience on this site.

C
Chris W.Verified Buyer
07/05/2025

Highly recommend

Good experience overall from checkout to delivery.

J
Jordan L.Verified Buyer
04/15/2025

Very happy with this

Packaging was secure and the item was in perfect condition.

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.