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

DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt

The DAYCO Serpentine Belt is a 4PK Series Micro-Ribbed V-Belt with a K Belt Trade Size and V-Ribbed Belt type. It has an effective length of 37 13/16 inches, an Industry Number of 4PK0960, and a Manufacturer Part…

SKU 3G-OTH-491486

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

DAYCO
Manufacturer Part Number
5040378
Type
K Belt Trade Size, V-Ribbed Belt
Effective Lg
37 13/16 in
Industry Number
4PK0960
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 a K Belt Trade Size and V-Ribbed Belt type. It has an effective length of 37 13/16 inches, an Industry Number of 4PK0960, and a Manufacturer Part Number of 5040378. The belt features aramid reinforcing cord material for strength.

Frequently Asked Questions

What is a DAYCO Serpentine Belt used for?

The DAYCO Serpentine Belt drives engine accessories like alternators, water pumps, and power steering pumps in automotive and industrial equipment. Its aramid-reinforced cord provides high strength and durability under continuous flexing and heat, making it suitable for demanding belt-driven systems.

What are the specifications of the DAYCO 5040378 Serpentine Belt?

The DAYCO 5040378 is a 4PK0960 Micro-Ribbed V-Belt with a K Belt Trade Size and V-Ribbed type. It has an effective length of 37 13/16 inches and features aramid reinforcing cord material for strength. The industry number is 4PK0960, and the manufacturer part number is 5040378.

Where to buy a DAYCO Serpentine Belt worldwide?

3G Electric supplies the DAYCO Serpentine Belt worldwide, handling full logistics and customs clearance for global delivery. As a sourcing partner, we provide genuine DAYCO belts like the 5040378 with aramid reinforcement. Contact us for availability and lead time to your location.

How to install a DAYCO Serpentine Belt?

To install a DAYCO Serpentine Belt, first relieve tension using the tensioner pulley, then route the belt according to the engine diagram, ensuring the V-ribs align with all pulleys. Release tensioner slowly to apply proper tension. Always replace the belt if worn or glazed, and check alignment to prevent premature failure.

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, 31 5/16 in Effective Lg (MPN 5040313). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0795.
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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 31 5/16 in Effective Lg (MPN 5040313). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0795.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 37 9/16 in Effective Lg (MPN 5040375). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0955.
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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 37 9/16 in Effective Lg (MPN 5040375). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0955.
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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 41 11/32 in Effective Lg (MPN 5040413). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1050.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 43 11/16 in Effective Lg (MPN 5040437). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1110.
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DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 43 11/16 in Effective Lg (MPN 5040437). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1110.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 24 13/16 in Effective Lg (MPN 5040248). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0630.
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