HomeBelts and Cooling > Accessory Drive Belt System ComponentsRoadmax 4K551AP Serpentine Belt - Air Conditioning, Air Conditioning and Power Steering or Alternator and Air Conditioning
Part #: 4K551AP

Roadmax 4K551AP Serpentine Belt - Air Conditioning, Air Conditioning and Power Steering or Alternator and Air Conditioning

Automotive V-Ribbed Belt (Standard), Air Conditioning and Power Steering, Alternator and Air Conditioning, and Air Conditioning
⚙️ 41 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Automotive V-Ribbed Belt (Standard), Air Conditioning and Power Steering, Alternator and Air Conditioning, and Air Conditioning
🚗Fitment: Chrysler, Dodge, and Ford, Neon, PT Cruiser, Transit, Transit-150, Transit-250, Transit-350, and Transit-350 HD
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Reliable Automotive V-Ribbed Belt for Chrysler, Dodge, and Ford Vehicles

The Roadmax 4K551AP Automotive V-Ribbed Belt (Standard) is engineered to provide consistent performance for select Chrysler, Dodge, and Ford models. Designed with durable materials and precise dimensions, this serpentine belt ensures efficient accessory drive operation in vehicles like the Neon, PT Cruiser, and Transit series.

  • Constructed from EPDM material for enhanced durability and heat resistance
  • Features a 4-rib design with a K cross section for optimal grip and flexibility
  • Effective length of 1400 mm (55.13 inches) and outside circumference of 1415 mm (55.75 inches)
  • Polyester cord material for added tensile strength and longevity
  • Top width options of 0.56 inches and 14 mm to fit specific pulley configurations

About the Roadmax Automotive V-Ribbed Belt (Standard) Line

The Automotive V-Ribbed Belt (Standard) line by Roadmax focuses on delivering serpentine belts that meet OEM specifications for standard accessory drive systems. This product line emphasizes reliable material composition and precise dimensional standards, making it suitable for a range of vehicles requiring consistent belt performance without specialized modifications.

Product Details and Specifications

The Roadmax 4K551AP serpentine belt is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and wear. Its 4-rib design with a K cross section ensures proper engagement with pulleys, reducing slippage and noise. The polyester cord embedded within the belt provides tensile strength, maintaining belt integrity under tension. With an effective length of 1400 mm (55.13 inches) and an outside circumference of 1415 mm (55.75 inches), this belt fits accessory drive systems on Chrysler Neon, Dodge PT Cruiser, and Ford Transit models including Transit-150, Transit-250, Transit-350, and Transit-350 HD.

Common Applications and Issues Addressed

  • Replacement for worn or cracked serpentine belts in Chrysler Neon and Dodge PT Cruiser
  • Restores proper accessory drive function in Ford Transit series vehicles
  • Eliminates belt slippage and squealing noises caused by degraded belts
  • Prevents accessory component failure due to belt breakage or stretching
  • Maintains engine cooling and charging system efficiency by ensuring belt tension

Installation Notes and Tips

When installing the Roadmax 4K551AP belt, ensure the correct routing according to the vehicle’s service manual. Verify belt tension and alignment to prevent premature wear. It is recommended to inspect pulleys and tensioners for wear or damage during replacement. Proper installation will help maintain optimal accessory drive performance on Chrysler, Dodge, and Ford vehicles.

Quality Assurance and Warranty

Roadmax Automotive V-Ribbed Belts are manufactured to meet industry standards for durability and performance. The 4K551AP part number undergoes quality control to ensure dimensional accuracy and material integrity. While specific warranty details are not provided, Roadmax products typically adhere to manufacturer guidelines for replacement in case of defects.

BrandRoadmax
Part Number4K551AP
PositionAutomotive V-Ribbed Belt (Standard), Air Conditioning and Power Steering, Alternator and Air Conditioning, and Air Conditioning
MaterialEpdm
Top Width.56
Top Width14
Cord MaterialPolyester
Cross Section DesignationK
Effective Length1400
Effective Length55.13
Outside Circumference1415
Outside Circumference55.75
TypeAutomotive v-ribbed belt (standard)
Rib Quantity4

This part fits 41 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2025FordTransit3.5LV6GASAlternator and Air ConditioningW/Dual Alts.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
2025FordTransit-1503.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
2025FordTransit-2503.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
2025FordTransit-3503.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
2025FordTransit-350 HD3.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Available Until Stock Depleted; Automotive V-Ribbed Belt (Standard)
2024FordTransit3.5LV6GASAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2024FordTransit-1503.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2024FordTransit-2503.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2024FordTransit-3503.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2024FordTransit-350 HD3.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2023FordTransit3.5LV6GASAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2023FordTransit-1503.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2023FordTransit-2503.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2023FordTransit-3503.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2023FordTransit-350 HD3.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2022FordTransit3.5LV6GASAir ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2022FordTransit-1503.5LV6FLEXAir ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2022FordTransit-2503.5LV6FLEXAir ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2022FordTransit-3503.5LV6FLEXAir ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2022FordTransit-350 HD3.5LV6FLEXAir ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2021FordTransit3.5LV6GASAir ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2021FordTransit-1503.5LV6FLEXAir ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2021FordTransit-2503.5LV6FLEXAir ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2021FordTransit-3503.5LV6FLEXAir ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2021FordTransit-350 HD3.5LV6FLEXAir ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2020FordTransit3.5LV6GASAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2020FordTransit-1503.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2020FordTransit-2503.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2020FordTransit-3503.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2020FordTransit-350 HD3.5LV6FLEXAlternator and Air ConditioningW/Dual Alts.; Automotive V-Ribbed Belt (Standard)
2010ChryslerPT Cruiser2.4LL4GASAir Conditioning and Power SteeringAutomotive V-Ribbed Belt (Standard)
2009ChryslerPT Cruiser2.4LL4GASAir Conditioning and Power SteeringAutomotive V-Ribbed Belt (Standard)
2008ChryslerPT Cruiser2.4LL4GASAir Conditioning and Power SteeringAutomotive V-Ribbed Belt (Standard)
2007ChryslerPT Cruiser2.4LL4GASAir Conditioning and Power SteeringAutomotive V-Ribbed Belt (Standard)
2006ChryslerPT Cruiser2.4LL4GASAir Conditioning and Power SteeringAutomotive V-Ribbed Belt (Standard)
2005ChryslerPT Cruiser2.4LL4GASAir Conditioning and Power SteeringAutomotive V-Ribbed Belt (Standard)
2005DodgeNeon2.4LL4GASN/AAutomotive V-Ribbed Belt (Standard)
2004ChryslerPT Cruiser2.4LL4GASAir Conditioning and Power SteeringAutomotive V-Ribbed Belt (Standard)
2004DodgeNeon2.4LL4GASAir Conditioning and Power SteeringAutomotive V-Ribbed Belt (Standard)
2003ChryslerPT Cruiser2.4LL4GASAir Conditioning and Power SteeringAutomotive V-Ribbed Belt (Standard)
2003DodgeNeon2.4LL4GASAir Conditioning and Power SteeringAutomotive V-Ribbed Belt (Standard)

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

04891519AB04891519AC104055025-04055140405504891519AB4891519AC4891519AD4891519AE4K5514PK13954PK140050405505040550DR550K4550K4MKJK4 556K040551LK4Z 8620 CPK040550QJK4556SMAMV4PK1395

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.