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4.7 · 7 reviews
SKU: 4K305
ACDelco

ACDelco Gold 779 mm Serpentine Belt 4K305

$47.49
FREE delivery · Delivery by Oct 19
  • 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

  • Power multiple engine devices efficiently using the multi-ribbed design that drives the alternator, power steering pump, and water pump.
  • Get a smart replacement choice for General Motors vehicles as well as most makes and models with this premium aftermarket part.
  • Match original equipment expectations seamlessly with manufacturing built to precise specifications for fit, form, and function.
  • Depend on high-quality standard replacement construction featuring a durable black finish with 4 ribs and a 779 mm effective length.
  • Enjoy long-term peace of mind with the included 36-month warranty backing this premium replacement part.

Details

Product Description

Keep your engine running smoothly with the ACDelco Gold Serpentine Belt 4K305, a high-quality standard replacement part that drives multiple essential devices. This multi-ribbed black car belt effectively powers several critical engine functions, including the alternator, power steering pump, and water pump. Designed as a premium aftermarket replacement, it is manufactured to meet your expectations for fit, form, and function for General Motors vehicles as well as most makes and models. The package includes one standard replacement drive belt backed by a 36-month warranty.

Technical data

Product Specifications

Part #
4K305
SKU #
626238
Color
Black
Rib Quantity
4
Outside Circumference
793 mm
Grade Type
Premium
Top Width
9/16 in
Effective Length
779 mm
Cross Section Designation
K
Type
Standard

Brand

Brand Story

Brake disc, caliper, and pads arranged on dark concrete

Since 1974

ACDelco

Brakes

ACDelco

General Motors’ service-parts brand

ACDelco is General Motors’ aftermarket parts brand, formed in 1974 from the AC Spark Plug and United Delco businesses. The line covers batteries, brakes, filters, and ignition parts sold at District Mailing Auto.

Shop ACDelco

  • Heritage

    1974

    GM combined the AC Spark Plug and United Delco businesses under the ACDelco name in 1974.

  • Parts

    Service lineup

    The brand covers batteries, brake parts, filters, and ignition components.

  • Storefront

    At District Mailing Auto

    Shop the ACDelco products currently in the catalog.

Customer Reviews

4.7

Based on 7 reviews

56
41
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.