Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

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 design. It features an Effective Length of 45 3/32 in, Industry Number 4PK1145, and Manufacturer Part Number…

SKU 3G-OTH-491500

Brand
DAYCO
Item
Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt
Category
4PK Series Micro-Ribbed V-Belts
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

DAYCO
Manufacturer Part Number
5040450
Type
K Belt Trade Size, V-Ribbed Belt
Effective Lg
45 3/32 in
Industry Number
4PK1145
Reinforcing Cord Material
Aramid
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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 design. It features an Effective Length of 45 3/32 in, Industry Number 4PK1145, and Manufacturer Part Number 5040450, with a Reinforcing Cord Material of Aramid.

Frequently Asked Questions

What is the DAYCO 5040450 serpentine belt used for?

The DAYCO 5040450 serpentine belt drives engine accessories such as alternators, water pumps, and power steering pumps in automotive and light industrial applications. Its aramid-reinforced cord provides high tensile strength and resistance to shock loads, making it suitable for demanding drive systems.

What are the specifications of the DAYCO 4PK1145 belt?

The DAYCO 4PK1145 is a 4PK Series Micro-Ribbed V-Belt with a K Belt Trade Size and V-Ribbed design. It has an effective length of 45 3/32 in, Industry Number 4PK1145, and MPN 5040450. The reinforcing cord material is aramid for durability and reduced stretch.

Where to buy DAYCO serpentine belt 5040450 worldwide?

3G Electric supplies the DAYCO 5040450 serpentine belt to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this belt to your facility. Contact us for pricing and lead time on your order.

How to install a DAYCO micro-ribbed V-belt?

To install a DAYCO micro-ribbed V-belt, first ensure the engine is off and cool. Release tension on the belt tensioner, route the belt according to the drive diagram, and reapply tension. Verify proper alignment on all pulleys to prevent premature wear. Refer to the vehicle service manual for specific instructions.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from DAYCO

View all DAYCO parts
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 38 13/16 in Effective Lg (MPN 5040388). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0985.
DAYCO
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 38 13/16 in Effective Lg (MPN 5040388). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0985.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 52 9/16 in Effective Lg (MPN 5040525). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1335.
DAYCO
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 52 9/16 in Effective Lg (MPN 5040525). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1335.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 27 9/16 in Effective Lg (MPN 5040275). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0700.
DAYCO
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 27 9/16 in Effective Lg (MPN 5040275). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0700.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 29 17/32 in Effective Lg (MPN 5040295). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0750.
DAYCO
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 29 17/32 in Effective Lg (MPN 5040295). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0750.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 51 19/32 in Effective Lg (MPN 5040515). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1310.
DAYCO
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 51 19/32 in Effective Lg (MPN 5040515). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1310.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 55 in Effective Lg, 4 Ribs (MPN 5040550). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1395.
DAYCO
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 55 in Effective Lg, 4 Ribs (MPN 5040550). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK1395.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 33 9/32 in Effective Lg (MPN 5040333). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0845.
DAYCO
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 33 9/32 in Effective Lg (MPN 5040333). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0845.
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 32 1/2 in Effective Lg (MPN 5040325). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0825.
DAYCO
DAYCO Serpentine Belt: Serpentine Belt, K Belt Trade Size, V-Ribbed Belt, 32 1/2 in Effective Lg (MPN 5040325). Key specifications — Brand: DAYCO; Reinforcing Cord Material: Aramid; Industry Number: 4PK0825.