/live/media/DY/DY_5040550_Fro.jpg)
Will it fit your vehicle?
Confirm before you buy. Free return shipping if it doesn't fit.
Dayco 5040550 Serpentine Belt - Air Conditioning and Power Steering
| Brand | Dayco 5040550 |
|---|---|
| Position | Air Conditioning and Power Steering |
| Color | Black |
| Cross Section | K-Section |
| Effective Length | 55.00 |
| Effective Length | 1397.00 |
| Material | EPDM, Aramid Reinforced |
| Maximum Operating Temperature | 100 |
| Maximum Operating Temperature | 212 |
| Minimum Operating Temperature | -45 |
| Minimum Operating Temperature | -42.7 |
| Outside Circumference | 55.66 |
| Outside Circumference | 1413.77 |
| Rib Depth | Standard |
| Rib Profile | Straight Rib |
| Rib Quantity | 4 |
| Standards | SAE J1459, SAE J2432 |
| Top Width | .54 |
| Fits | Chrysler and Dodge · 21 vehicles |
Aramid reinforced. EPDM construction helps resist wear and heat for dependable belt performance.
Straight rib profile. Promotes smooth, efficient power transfer in the accessory drive system.
SAE compliant. Built to meet SAE J1459 and SAE J2432 standards.
Cross-references ACDelco 4K551, CARQUEST K040551 and Chrysler 04891519AB for the same application. See all 13.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Dayco 5040550 Serpentine Belt Overview
The Dayco 5040550 serpentine belt is a K-section accessory drive belt built for consistent power transfer in accessory drive systems. It uses EPDM rubber with aramid reinforcement for durability, stable tensioning, and reliable operation across a wide temperature range.
Compatible With Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD dual alternator and air conditioning applications, this belt also cross-references Gates K040551 for the same application.
Key Features
- EPDM construction with aramid reinforcement for strength and wear resistance
- 4-rib, straight-rib profile for accessory drive engagement
- Black K-section belt with a .54 top width
- Effective length: 55.00 in. / 1397.00 mm
- Outside circumference: 55.66 in. / 1413.77 mm
- Operating temperature range: -45°F to 212°F
- Built to SAE J1459 and SAE J2432 standards
Detailed Description
Dayco 5040550 is a serpentine belt for accessory drive belt system service where a 4-rib K-section belt is required. Its EPDM compound is paired with aramid reinforcement to support stable performance under heat, cold, and continuous accessory loading. This makes it a direct-fit option for select Ford Transit van configurations, including Transit-150, Transit-250, Transit-350, and Transit-350 HD models with dual alternator and air conditioning routing. It also applies to Chrysler PT Cruiser and Dodge Neon air conditioning and power steering setups listed in the fitment data.
For buyers searching for a Ford Transit-350 serpentine belt, a Transit-250 accessory drive belt, or a Dayco 5040550 replacement belt, this part provides the specified dimensions and rib profile needed for the listed applications.
Common Problems This Belt Can Address
- Squealing or chirping from a worn accessory drive belt
- Cracking, glazing, or rib wear on the existing belt
- Loss of alternator, A/C compressor, or power steering drive due to belt deterioration
- Incorrect belt length or rib count on a replacement service part
- Reduced belt stability in hot or cold operating conditions
Installation Notes and Tips
Verify the belt routing, rib count, and measured length against the vehicle’s accessory drive layout before installation. Confirm whether the vehicle uses the alternator and air conditioning routing or the air conditioning and power steering routing shown in the fitment data. Inspect pulleys, tensioners, and idlers for wear before installing the new belt, since damaged components can shorten belt life and affect tracking.
Fits 2020-2026 Ford Transit-150, Alternator and Air Conditioning, Dual Alternator. Fits 2020-2026 Ford Transit-250, Alternator and Air Conditioning, Dual Alternator. Fits 2025-2026 Ford Transit-350, Alternator and Air Conditioning, Dual Alternator. Fits 2025-2026 Ford Transit-350 HD, Alternator and Air Conditioning, Dual Alternator. Fits 2020-2024 Ford Transit-350, Air Conditioning and Alternator, Dual Alt. Fits 2020-2024 Ford Transit-350 HD, Air Conditioning and Alternator, Dual Alt. Fits 2003-2010 Chrysler PT Cruiser, Air Conditioning and Power Steering. Fits 2003-2005 Dodge Neon, Air Conditioning and Power Steering.
Quality Assurance
Dayco manufactures this belt to SAE J1459 and SAE J2432 standards, supporting consistent fit and material specification for the listed applications. Part number 5040550 is a direct reference for ordering and service lookup, and it cross-references Gates K040551 for the same application.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2024 | Ford | Transit-350 | — | — | Air Conditioning and Alternator | Dual Alt. |
| 2024 | Ford | Transit-350 HD | — | — | Air Conditioning and Alternator | Dual Alt. |
| 2023 | Ford | Transit-350 | — | — | Air Conditioning and Alternator | Dual Alt. |
| 2023 | Ford | Transit-350 HD | — | — | Air Conditioning and Alternator | Dual Alt. |
| 2022 | Ford | Transit-350 | — | — | Air Conditioning and Alternator | Dual Alt. |
| 2022 | Ford | Transit-350 HD | — | — | Air Conditioning and Alternator | Dual Alt. |
| 2021 | Ford | Transit-350 | — | — | Air Conditioning and Alternator | Dual Alt. |
| 2021 | Ford | Transit-350 HD | — | — | Air Conditioning and Alternator | Dual Alt. |
| 2020 | Ford | Transit-350 | — | — | Air Conditioning and Alternator | Dual Alt. |
| 2020 | Ford | Transit-350 HD | — | — | Air Conditioning and Alternator | Dual Alt. |
| 2010 | Chrysler | PT Cruiser | — | — | Air Conditioning and Power Steering | — |
| 2009 | Chrysler | PT Cruiser | — | — | Air Conditioning and Power Steering | — |
| 2008 | Chrysler | PT Cruiser | — | — | Air Conditioning and Power Steering | — |
| 2007 | Chrysler | PT Cruiser | — | — | Air Conditioning and Power Steering | — |
| 2006 | Chrysler | PT Cruiser | — | — | Air Conditioning and Power Steering | — |
| 2005 | Chrysler | PT Cruiser | — | — | Air Conditioning and Power Steering | — |
| 2005 | Dodge | Neon | 2.4L | L4 | Air Conditioning and Power Steering | — |
| 2004 | Chrysler | PT Cruiser | — | — | Air Conditioning and Power Steering | — |
| 2004 | Dodge | Neon | 2.4L | L4 | Air Conditioning and Power Steering | — |
| 2003 | Chrysler | PT Cruiser | — | — | Air Conditioning and Power Steering | — |
| 2003 | Dodge | Neon | 2.4L | L4 | Air Conditioning and Power Steering | — |
| No rows match your filter. | ||||||