Dayco 15420 Accessory Drive Belt

Brand Dayco 15420
Position Fan and Power Steering
Angle 36
Belt Construction Top Cog
Color Black
Effective Length 42
Effective Length 1066.80
Material Synthetic Rubber Compound
Maximum Operating Temperature 79.4
Maximum Operating Temperature 175
Minimum Operating Temperature -37.2
Minimum Operating Temperature -35
Outside Circumference 42.57
Outside Circumference 1081.28
Standards SAE J636, SAE J637
Top Width .44
Fits Chevrolet, Buick, Dodge, GMC, Oldsmobile, Plymouth, Pontiac, Ford, Chrysler, and Honda · 152 vehicles

Top-cog construction. Helps the belt flex smoothly for reliable accessory drive performance.

Synthetic rubber compound. Built for durable, consistent operation in demanding conditions.

SAE J636, J637. Meets recognized industry standards for accessory drive belts.

Cross-references ACDelco 15420, Atlas 742 and Atlas 5420 for the same application. See all 37.

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Accessory Drive Belt for OE-Style Fitment

The Dayco 15420 accessory drive belt is built for accessory drive systems that need a reliable, OE-style replacement belt. With a synthetic rubber compound, top-cog construction, and a black finish, it is made for steady operation across a wide temperature range in fan, alternator, power steering, and air pump applications.

Fits a broad range of classic Chevrolet, Ford, Buick, Pontiac, Oldsmobile, Chrysler, Dodge, Plymouth, and Honda applications, including 1985-1986 Ford F-150 fan and alternator setups and 1985-1987 Chevrolet Caprice fan and power steering applications.

  • Dayco accessory drive belt, part number 15420
  • Synthetic rubber compound for durable belt construction
  • Top-cog design for flexible operation in accessory drive systems
  • 0.44 in. top width for the specified belt application
  • 42 in. effective length and 42.57 in. outside circumference
  • 36-degree angle profile
  • Operating temperature range from -35 to 175 degrees
  • Built to SAE J636 and SAE J637 standards

Fitment Details

This belt fits confirmed applications across multiple makes and models. It is listed for fan and power steering, fan and alternator, fan, alternator and air conditioning, water pump and alternator, and alternator and air pump positions depending on vehicle configuration.

  • Fits 1988 Chevrolet Monte Carlo, fan and power steering; w/o A.C., 42 in. belt.
  • Fits 1985-1986 Chevrolet Monte Carlo, fan and power steering; w/o A.C., 42 in. belt.
  • Fits 1987 Buick Regal, fan and power steering; fits vehicles without air conditioning.
  • Fits 1985-1987 Chevrolet Caprice, fan and power steering; w/o A.C., 42 1/2 in. belt.
  • Fits 1986-1987 Chevrolet El Camino, fan and power steering; w/o A.C., 42 in. belt.
  • Fits 1984-1987 Dodge Caravan, power steering.
  • Fits 1984-1987 Plymouth Voyager, power steering.
  • Fits 1985-1986 Ford F-150, fan and alternator; w/40, 60 Amp Alt., w/o A.C.
  • Fits 1985-1986 Ford Bronco, fan and alternator; w/40, 60 Amp Alt., w/o A.C.
  • Fits 1982-1985 Chrysler LeBaron, power steering.
  • Fits 1979-1980 Buick Century, fan and alternator.
  • Fits 1979 Chevrolet El Camino, fan, alternator and air conditioning.

What This Belt Helps Address

  • Squealing or slipping accessory drive belt noise
  • Loss of belt tension in fan, alternator, or power steering drive systems
  • Cracking, glazing, or wear on an aging V-belt replacement
  • Accessory drive issues on vehicles without air conditioning
  • Fitment needs for classic Chevrolet Monte Carlo, Ford F-Series, and Buick Regal applications

Installation Notes and Tips

Verify the belt length, width, and application notes before installation. This Dayco 15420 belt is specified for vehicles with exact accessory configurations, including no-A/C setups and alternator output notes on certain Ford applications. Confirm pulley alignment and belt routing during service, and compare the removed belt to the listed effective length and outside circumference when possible.

Quality Assurance

Dayco manufactures this belt to SAE J636 and SAE J637 standards for accessory drive belt applications. The 15420 part number also cross-references Gates 7420 for the same application.

This part fits 152 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
1988ChevroletMonte Carlo5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1987BuickRegal5.0LV8—Fan and Power SteeringFits vehicles without air conditioning.
1987ChevroletCaprice4.3LV6—Fan and Power Steeringw/o A.C., 42 1/2 In. Belt
1987ChevroletCaprice5.7LV8—Fan and Power Steeringw/o A.C., 42 1/2 In. Belt
1987ChevroletCaprice5.0LV8—Fan and Power Steeringw/o A.C., 42 1/2 In. Belt
1987ChevroletEl Camino5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1987ChevroletMonte Carlo5.0LV8—Fan and Power SteeringFits vehicles without air conditioning.
1987DodgeCaravan2.6LL4—Power Steering—
1987OldsmobileCutlass5.0LV8—Fan and Power SteeringFits vehicles without air conditioning.
1987OldsmobileCutlass Supreme5.0LV8—Fan and Power SteeringFits vehicles without air conditioning.
1987PlymouthVoyager2.6LL4—Power Steering—
1987PontiacGrand Prix5.0LV8—Fan and Power SteeringFits vehicles without air conditioning.
1986BuickRegal5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1986ChevroletCaprice4.3LV6—Fan and Power Steeringw/o A.C., 42 1/2 In. Belt
1986ChevroletCaprice5.7LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1986ChevroletCaprice5.0LV8—Fan and Power SteeringFits vehicles without air conditioning.
1986ChevroletEl Camino5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1986ChevroletMonte Carlo5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1986DodgeCaravan2.6LL4—Power Steering—
1986FordBronco4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1986FordE-150 Econoline4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1986FordE-150 Econoline Club Wagon4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1986FordE-250 Econoline4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1986FordE-250 Econoline Club Wagon4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1986FordE-350 Econoline4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1986FordE-350 Econoline Club Wagon4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1986FordF-1504.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1986FordF-2504.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1986FordF-3504.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1986OldsmobileCutlass———Fan and Power Steeringw/o A.C., 42 In. Belt
1986OldsmobileCutlass Supreme5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1986PlymouthVoyager2.6LL4—Power Steering—
1986PontiacBonneville5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1986PontiacGrand Prix5.0LV8—Fan and Power SteeringFits vehicles without air conditioning.
1986PontiacParisienne4.3LV6—Fan and Power Steeringw/o A.C., 42 1/2 In. Belt
1986PontiacParisienne5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1985ChevroletCaprice4.3LV6—Fan and Power Steeringw/o A.C., 42 1/2 In. Belt
1985ChevroletCaprice5.7LV8GASFan and Power Steeringw/o A.C., 42 In. Belt
1985ChevroletCaprice5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1985ChevroletEl Camino5.0LV8—Power Steeringw/o A.C., 42 In. Belt
1985ChevroletImpala4.3LV6—Fan and Power Steeringw/o A.C., 42 1/2 In. Belt
1985ChevroletImpala5.7LV8GASFan and Power Steeringw/o A.C., 42 In. Belt
1985ChevroletImpala5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1985ChevroletMonte Carlo5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1985ChryslerLeBaron2.6LL4—Power Steering—
1985ChryslerNew Yorker2.6LL4—Power Steering—
1985ChryslerTown & Country2.6LL4—Power Steering—
1985Dodge6002.6LL4—Power Steering—
1985DodgeAries2.6LL4—Power Steering—
1985DodgeCaravan2.6LL4—Power Steering—
1985FordBronco4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1985FordE-150 Econoline4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1985FordE-150 Econoline Club Wagon4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1985FordE-250 Econoline4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1985FordE-250 Econoline Club Wagon4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1985FordE-350 Econoline4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1985FordE-350 Econoline Club Wagon4.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1985FordF-1504.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1985FordF-2504.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1985FordF-3504.9LL6—Fan and Alternatorw/40, 60 Amp Alt., w/o A.C.
1985PlymouthReliant2.6LL4—Power Steering—
1985PlymouthVoyager2.6LL4—Power Steering—
1985PontiacBonneville5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1985PontiacGrand Prix5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1985PontiacParisienne4.3LV6—Fan and Power Steeringw/o A.C., 42 1/2 In. Belt
1985PontiacParisienne5.0LV8—Fan and Power Steeringw/o A.C., 42 In. Belt
1984ChevroletCaprice3.8LV6—Fan and Power Steeringw/66, 70, 80 Amp Alt., w/o A.C.
1984ChevroletCaprice5.0LV8—Fan and Power Steeringw/66, 70, 80 Amp Alt., w/o A.C.
1984ChevroletEl Camino3.8LV6—Fan and Power Steeringw/70, 80 Amp Alt., w/o A.C.
1984ChevroletEl Camino5.0LV8—Fan and Power Steeringw/70, 80 Amp Alt., w/o A.C.
1984ChevroletImpala3.8LV6—Fan and Power Steeringw/66, 70, 80 Amp Alt., w/o A.C.
1984ChevroletImpala5.7LV8GASFan and Power Steeringw/66, 70, 80 Amp Alt., w/o A.C.
1984ChevroletImpala5.0LV8—Fan and Power Steeringw/66, 70, 80 Amp Alt., w/o A.C.
1984ChevroletMonte Carlo3.8LV6—Fan and Power Steeringw/70, 80 Amp Alt., w/o A.C.
1984ChevroletMonte Carlo5.0LV8—Fan and Power Steeringw/70, 80 Amp Alt., w/o A.C.
1984ChryslerLeBaron2.6LL4—Power Steering—
1984ChryslerNew Yorker2.6LL4—Power Steering—
1984ChryslerTown & Country2.6LL4—Power Steering—
1984Dodge6002.6LL4—Power Steering—
1984DodgeAries2.6LL4—Power Steering—
1984DodgeCaravan2.6LL4—Power Steering—
1984OldsmobileCutlass Calais5.0LV8—Fan and Power Steeringw/70, 80 Amp Alt., w/o A.C.
1984PlymouthReliant2.6LL4—Power Steering—
1984PlymouthVoyager2.6LL4—Power Steering—
1984PontiacBonneville5.0LV8—Fan and Power Steeringw/70, 80 Amp Alt., w/o A.C.
1984PontiacGrand Prix5.0LV8—Fan and Power Steeringw/70, 80 Amp Alt., w/o A.C.
1984PontiacParisienne5.0LV8—Fan and Power Steeringw/66, 70, 80 Amp Alt., w/o A.C.
1983BuickRegal3.8LV6—Fan and Alternatorw/o 70 Amp Alt.
1983ChevroletCaprice3.8LV6—Power Steeringw/66, 70, 80 Amp Alt., w/o A.C.
1983ChevroletCaprice5.0LV8—Power Steeringw/66, 70, 80 Amp Alt., w/o A.C.
1983ChevroletEl Camino3.8LV6—Fan and Power Steeringw/70, 80 Amp Alt., w/o A.C.
1983ChevroletEl Camino5.0LV8—Fan and Power Steeringw/70, 80 Amp Alt., w/o A.C.
1983ChevroletImpala3.8LV6—Power Steeringw/66, 70, 80 Amp Alt., w/o A.C.
1983ChevroletImpala5.7LV8GASPower Steeringw/66, 70, 80 Amp Alt., w/o A.C.
1983ChevroletImpala5.0LV8—Power Steeringw/66, 70, 80 Amp Alt., w/o A.C.
1983ChevroletMalibu3.8LV6—Power Steeringw/70, 78 Amp Alt., w/o A.C.
1983ChevroletMalibu5.0LV8—Fan and Power Steeringw/70, 80 Amp Alt., w/o A.C.
1983ChevroletMonte Carlo3.8LV6—Fan and Power Steeringw/70, 80 Amp Alt., w/o A.C.
1983ChevroletMonte Carlo5.0LV8—Fan and Power Steeringw/70, 80 Amp Alt., w/o A.C.
1983ChryslerLeBaron2.6LL4—Power Steering—
1983ChryslerNew Yorker2.6LL4—Power Steering—
1983ChryslerTown & Country2.6LL4—Power Steering—
1983Dodge6002.6LL4—Power Steering—
1983DodgeAries2.6LL4—Power Steering—
1983PlymouthReliant2.6LL4—Power Steering—
1983PontiacBonneville5.0LV8—Power Steeringw/66, 70, 80 Amp Alt., w/o A.C.
1983PontiacGrand LeMans5.0LV8—Fan and Power Steeringw/70, 80 Amp Alt., w/o A.C.
1983PontiacGrand Prix5.0LV8—Power Steeringw/70, 80 Amp Alt., w/o A.C.
1983PontiacParisienne5.0LV8—Power Steeringw/66, 70, 80 Amp Alt., w/o A.C.
1982BuickRegal3.8LV6—Fan and Alternatorw/o 70 Amp Alt.
1982ChryslerLeBaron2.6LL4—Power Steering—
1982DodgeAries2.6LL4—Power Steering—
1982PlymouthReliant2.6LL4—Power Steering—
1981BuickRegal3.8LV6—Fan and Alternatorw/o 70 Amp Alt.
1981ChevroletMonte Carlo3.8LV6—Fan and Alternatorw/o 70 Amp Alt.
1981DodgeAries2.6LL4—Power Steering—
1981PlymouthReliant2.6LL4—Power Steering—
1980BuickCentury3.8LV6—Fan and Alternator—
1980BuickLeSabre3.8LV6—Fan and Alternator—
1980BuickRegal3.8LV6—Power Steering—
1980BuickRegal3.8LV6—Fan and Alternator—
1980BuickSkyhawk———Fan and AlternatorCompatible with vehicles containing air conditioning.
1980ChevroletMonte Carlo3.8LV6—Fan and Alternator—
1980ChevroletMonza3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1980OldsmobileStarfire3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1980PontiacSunbird3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1979BuickCentury3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1979BuickCentury3.8LV6—Fan and Alternator—
1979BuickLeSabre3.8LV6—Fan and Alternator—
1979BuickRegal3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1979BuickRegal3.8LV6—Fan and Alternator—
1979BuickSkyhawk———Fan and AlternatorCompatible with vehicles equipped with Automatic Transmission and Air Conditioning.
1979ChevroletEl Camino3.8LV6—Fan, Alternator and Air Conditioning—
1979ChevroletMalibu3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1979ChevroletMonte Carlo3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1979ChevroletMonza3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1979HondaPrelude———Water Pump and AlternatorCompatible with vehicles containing air conditioning.
1979OldsmobileCutlass3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1979OldsmobileCutlass Calais3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1979OldsmobileCutlass Salon3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1979OldsmobileCutlass Supreme3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1979OldsmobileStarfire3.8LV6—Fan and AlternatorCompatible with vehicles equipped with Automatic Transmission and Air Conditioning.
1979PontiacGrand LeMans3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1979PontiacGrand Prix3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1979PontiacLeMans3.8LV6—Fan and AlternatorCompatible with vehicles containing air conditioning.
1979PontiacSunbird3.8LV6—Fan and AlternatorCompatible with vehicles equipped with Automatic Transmission and Air Conditioning.
1976OldsmobileStarfire2.3LL4—Alternator and Air Pumpw/P.S., w/A.C.
1972FordE-100 Econoline4.9LL6—Fan and Alternator—
1967FordLTD6.4LV8—Fan and Alternatorw/A.C., Dual Belts
1967FordLTD6.4LV8—Fan and Alternatorw/A.C., Single Belt
1967FordLTD7.0LV8—Fan and Alternatorw/A.C., Dual Belts
1967FordLTD7.0LV8—Fan and Alternatorw/A.C., Single Belt
Directly replaces or cross-references 37 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 15420Atlas — 742Atlas — 5420Autopar — FB15420Bando — 2420Bando — B2416CARQUEST — 7420Chrysler — 4027330Driveworks — 42013Duralast — 15420Dynacraft — D1102-2461Dynacraft — D1102-2469Ford — C6AE-8620-HFord — E4TE-8A615-FAFord — E4TE-8620-MFreightliner — GT15425Freightliner — GTFLN8419Freshstart — 15420Gates — 7420General Motors — 458567General Motors — 464632General Motors — 9433634General Motors — 9433737General Motors — 25502290Goodyear — 15425Honda — 38763-657-0030Honda — 38763-671-0030Kohler — 258955Lazorlite — L37-1065Mighty Distributing System — 15425Mitsuboshi — MF1420Mitsuboshi — REMF-1415NAPA — 25-7420NAPA — 25-10683NAPA — 25-10684Pirelli — 13-421Uniroyal — 15420