HomeBelts and Cooling > Accessory Drive Belt System ComponentsDayco 17420 Accessory Drive Belt
Part #: 17420

Dayco 17420 Accessory Drive Belt

Fan and Alternator
⚙️ 46 vehicles fit this part
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🚗Fitment: Mazda, Volvo, Cadillac, Mercury, Ford, Porsche, BMW, Jeep, Chevrolet, Dodge, Plymouth, American Motors, and Nash, MPV, B2600, RX-7, 244, 245, Commercial Chassis, Fleetwood, DeVille, Eldorado, Seville, Cosmo, RX-4, Bobcat, Pinto, 911, 3.0CS, 3.0S, Bavaria, J-100, J-2500, J-2600, J-3500, J-3600, J-3700, Wagoneer, P30 Van, Charger, Coronet, Dart, Monaco, Polara, F-350, J-2700, Barracuda, Belvedere, Fury, Fury I, Fury II, Fury III, Satellite, Valiant, J-3800, P20 Series, P30 Series, J-2800, Ambassador, Thunderbird, American, Rambler, Ambassador Custom, Ambassador Super, and Statesman
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Durable Dayco Accessory Drive Belt 17420 for Select Vehicles

The Dayco 17420 accessory drive belt is engineered to provide reliable performance for a range of vehicles including Cadillac, Dodge, Ford, Jeep, Mazda, Mercury, and Porsche models. Constructed from a synthetic rubber compound, this belt is designed to withstand varying operating temperatures and maintain optimal function in demanding conditions.

  • Material: Synthetic rubber compound for durability and flexibility
  • Top width: 0.53 inches for precise fitment
  • Effective length: 42 inches (1066.80 mm) ensuring proper tension
  • Outside circumference: Approximately 42.27 inches (1073.66 mm)
  • Belt construction: Top cog design for improved grip and reduced slippage
  • Operating temperature range: -37.2°C to 79.4°C (-35°F to 175°F)
  • Meets SAE J636 and SAE J637 standards for quality and performance
  • Non-banded belt design for compatibility with various pulley systems

Technical Overview and Compatibility

The Dayco 17420 accessory drive belt features a top cog construction that enhances flexibility and heat dissipation, which is critical for maintaining performance under high load and temperature conditions. Its synthetic rubber compound material offers resistance to wear, cracking, and heat degradation. The belt’s dimensions, including a top width of 0.53 inches and an effective length of 42 inches, make it suitable for specific accessory drive systems found in vehicles such as the Cadillac DeVille, Dodge Charger, Ford F-350, Jeep Wagoneer, Mazda RX-7, Mercury Monterey, and Porsche 911.

Applications and Problem Solving

This accessory drive belt is designed to address common issues related to belt wear and failure in automotive accessory systems. It is compatible with the following vehicle models:

  • Cadillac DeVille, Eldorado, Seville, Fleetwood, and Monaco
  • Dodge Charger, Dart, and Commercial Chassis
  • Ford F-350, Pinto, Thunderbird
  • Jeep Wagoneer
  • Mazda B2600, MPV, RX-7
  • Mercury Monterey
  • Porsche 911

Typical problems this belt helps resolve include:

  • Slipping or squealing belts due to wear or improper tension
  • Cracking or brittleness from heat exposure
  • Loss of accessory function caused by belt failure
  • Reduced engine efficiency from degraded belt performance

Installation Notes and Tips

When installing the Dayco 17420 accessory drive belt, ensure the belt routing matches the vehicle’s accessory drive diagram. Check pulleys and tensioners for wear or damage before installation. Proper tensioning is critical to prevent premature wear or slippage. It is recommended to replace the belt as part of routine maintenance intervals or when signs of wear are evident.

Quality Assurance and Standards

Dayco 17420 meets SAE J636 and SAE J637 standards, ensuring compliance with industry requirements for accessory drive belts. The synthetic rubber compound and top cog construction contribute to consistent performance and durability. While specific warranty details may vary, Dayco products typically come with manufacturer-backed quality assurance to support reliable operation in compatible vehicles.

BrandDayco
Part Number17420
Angle36
Belt ConstructionTop Cog
ColorBlack
Effective Length42
Effective Length1066.80
MaterialSynthetic Rubber Compound
Maximum Operating Temperature79.4
Maximum Operating Temperature175
Minimum Operating Temperature-37.2
Minimum Operating Temperature-35
Outside Circumference42.27
Outside Circumference1073.66
StandardsSAE J636, SAE J637
Top Width.53

This part fits 46 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1994MazdaMPV2.6LL4Fan and Alternator
1993MazdaB2600Fan and Alternator
1993MazdaMPV2.6LL4Fan and Alternator
1992MazdaB2600Fan and Alternator
1992MazdaMPV2.6LL4Fan and Alternator
1991MazdaB2600Fan and Alternator
1991MazdaMPV2.6LL4Fan and Alternator
1991MazdaRX-7Power Steering
1990MazdaB2600Fan and Alternator
1990MazdaMPV2.6LL4Fan and Alternator
1990MazdaRX-7Power Steering
1989MazdaB2600Fan and Alternator
1989MazdaMPV2.6LL4Fan and Alternator
1989MazdaRX-7Power Steering
1988MazdaRX-7Power Steering
1987MazdaRX-7Power Steering
1986MazdaRX-7Power Steering
1984CadillacCommercial ChassisFan and Air PumpCompatible with vehicles containing air conditioning.
1984CadillacFleetwood6.0LV8Fan and Air Pump
1983CadillacCommercial ChassisFan and Air PumpCompatible with vehicles containing air conditioning.
1983CadillacFleetwood6.0LV8Fan and Air PumpCompatible with vehicles containing air conditioning.
1982CadillacFleetwood6.0LV8Fan and Air PumpCompatible with vehicles containing air conditioning.
1981CadillacCommercial ChassisFan and Air PumpCompatible with vehicles containing air conditioning.
1981CadillacDeVille6.0LV8Fan and Air PumpCompatible with vehicles containing air conditioning.
1981CadillacEldorado6.0LV8Fan and Air PumpCompatible with vehicles containing air conditioning.
1981CadillacFleetwood6.0LV8Fan and Air PumpCompatible with vehicles containing air conditioning.
1981CadillacSeville6.0LV8Fan and Air Pump
1976MercuryBobcat2.3LL4Air Conditioning and Idler
1975FordPinto2.3LL4Air Conditioning and Idler
1975MercuryBobcat2.3LL4Air Conditioning and Idler
1975Porsche911Air ConditioningAbacus Comp.
1974FordPinto2.3LL4Air Conditioning and Idler
1970JeepWagoneer3.8LL6Power SteeringWithout air pump and without air conditioning.
1969DodgeCharger5.2LV8Power Steering
1969DodgeDart5.2LV8Power Steering
1969DodgeDart5.6LV8Power Steering
1969DodgeDart4.5LV8Power Steering
1969DodgeMonaco5.2LV8Power Steering
1969FordF-3505.9LV8Power SteeringFits vehicles without air conditioning.
1969FordF-3506.4LV8Power SteeringFits vehicles without air conditioning.
1969JeepWagoneer3.8LL6Power SteeringWithout air pump and without air conditioning.
1968DodgeDart5.2LV8Power Steering
1968DodgeDart5.6LV8Power Steering
1968DodgeDart4.5LV8Power Steering
1968JeepWagoneer3.8LL6Power SteeringWithout air pump and without air conditioning.
1965FordThunderbird6.4LV8Power Steeringw/o A.C., 42 1/2 In. Belt

* 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:

174209420HD

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