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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 31 in Effective Lg - 4PK Series Micro-Ribbed V-Belts
DAYCO4PK Series Micro-Ribbed V-Belts

DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 31 in Effective Lg

The DAYCO Serpentine Belt is a 4PK Series Micro-Ribbed V-Belt with 4 ribs, a K Belt Trade Size, and a 31-inch effective length. It features aramid reinforcing cord material and is identified by Industry Number…

SKU 3G-OTH-491463

Brand
DAYCO
Item
Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 31 in Effective Lg
Category
4PK Series Micro-Ribbed V-Belts
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Technical Specifications

DAYCO
Manufacturer Part Number
5040310
Type
K Belt Trade Size, V-Ribbed Belt
Ribs
4
Effective Lg
31 in
Industry Number
4PK0785
Reinforcing Cord Material
Aramid
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DAYCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DAYCO Serpentine Belt is a 4PK Series Micro-Ribbed V-Belt with 4 ribs, a K Belt Trade Size, and a 31-inch effective length. It features aramid reinforcing cord material and is identified by Industry Number 4PK0785 (MPN 5040310).

Frequently Asked Questions

What is the DAYCO 5040310 serpentine belt used for?

The DAYCO 5040310 serpentine belt drives engine accessories like alternators, water pumps, and power steering pumps. Its 4-rib K-belt design and aramid cord provide reliable power transmission in automotive and light industrial applications where a 31-inch effective length is required.

What are the specifications of the DAYCO 4PK0785 belt?

The DAYCO 4PK0785 belt has 4 ribs, a K Belt Trade Size, and a 31-inch effective length. It uses aramid reinforcing cord material and is a V-ribbed serpentine belt. The manufacturer part number is 5040310, and the industry number is 4PK0785.

Where to buy DAYCO serpentine belts worldwide?

3G Electric supplies DAYCO serpentine belts worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on the DAYCO 5040310 belt or other DAYCO power transmission products.

How to select the right DAYCO serpentine belt?

To select the correct DAYCO serpentine belt, match the number of ribs, effective length, and trade size to your application. For the 5040310, confirm 4 ribs and a 31-inch effective length. Always verify the industry number 4PK0785 against your existing belt or vehicle specifications.

Used in

Common applications for DAYCO
Automotive service centers — DAYCO metal exhaust hoses (SKU 4GKA4, 4GKA5) for flexible exhaust extraction from vehicle tailpipes during repair.
Marine engine rooms — DAYCO 304 stainless steel exhaust hoses (SKU 4GKA8, 4GKA7) for venting diesel generator exhaust in confined spaces.
Fuel system maintenance — DAYCO SAE J30R7 fuel hoses (SKU 4GJW1) for replacement of low-pressure fuel lines in industrial engines.
High-temperature fuel injection — DAYCO FKM fuel injection hose (SKU 4GJW6) for return lines on common-rail diesel systems operating above 250°F.
Industrial ventilation — DAYCO metal exhaust kits (SKU 4GKC1) for connecting fume hoods to exhaust ducts in welding or chemical processing areas.
Biofuel handling — DAYCO SAE J1527 fuel hoses (SKU 4GJW3) for transfer of biodiesel blends in agricultural equipment refueling stations.

DAYCO Products

3G Electric supplies DAYCO 4pk series micro-ribbed v-belts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 43 in Effective Lg, 4 Ribs (MPN 5040430). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1090.
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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 43 in Effective Lg, 4 Ribs (MPN 5040430). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1090.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 36 1/2 in Effective Lg (MPN 5040365). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0925.
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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 36 1/2 in Effective Lg (MPN 5040365). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0925.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 88 in Effective Lg, 4 Ribs (MPN 5040880). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK2235.
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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 88 in Effective Lg, 4 Ribs (MPN 5040880). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK2235.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 33 7/8 in Effective Lg (MPN 5040338). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0860.
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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 33 7/8 in Effective Lg (MPN 5040338). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0860.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 33 1/16 in Effective Lg (MPN 5040330). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0840.
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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 33 1/16 in Effective Lg (MPN 5040330). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0840.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 44 1/2 in Effective Lg (MPN 5040445). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1130.
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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 44 1/2 in Effective Lg (MPN 5040445). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1130.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 35 1/32 in Effective Lg (MPN 5040350). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0890.
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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 35 1/32 in Effective Lg (MPN 5040350). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0890.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 63 19/32 in Effective Lg (MPN 5040636). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1615.
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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 63 19/32 in Effective Lg (MPN 5040636). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1615.