Dayco 15305 Accessory Drive Belt
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Dayco

Dayco 15305 Accessory Drive Belt

Brand Dayco 15305
Position Alternator and Blower
Angle 36
Belt Construction Top Cog
Color Black
Effective Length 30.50
Effective Length 774.70
Material Synthetic Rubber Compound
Maximum Operating Temperature 79.4
Maximum Operating Temperature 175
Minimum Operating Temperature -37.2
Minimum Operating Temperature -35
Outside Circumference 31.07
Outside Circumference 789.18
Standards SAE J636, SAE J637
Top Width .44
Fits Porsche, Isuzu, Ford, Volkswagen, Audi, Chevrolet, Jeep, BMW, Buick, Subaru, American Motors, and Mercury · 140 vehicles

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

Synthetic rubber compound. Built for durable, consistent operation across a wide temperature range.

SAE-compliant design. Meets SAE J636 and J637 standards for accessory drive belts.

Cross-references ACDelco 15305, AMC 3229863 and Autopar FB15305 for the same application. See all 45.

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Dayco 15305 Accessory Drive Belt Overview

The Dayco 15305 accessory drive belt is a top-cog belt built from a synthetic rubber compound for dependable belt drive performance. With a 0.44-inch top width, 30.50-inch effective length, and 31.07-inch outside circumference, it is sized for specific accessory drive applications across Ford, Porsche, Isuzu, and other vehicle platforms.

Use Dayco 15305 when you need a replacement accessory drive belt for applications such as alternator, blower, fan, air pump, air conditioning, or power steering drive routing. This belt meets SAE J636 and SAE J637 standards and is engineered for operating temperatures from -35 to 175 degrees.

Key Features

  • Synthetic rubber compound construction for accessory drive service
  • Top-cog design helps the belt flex through pulley systems
  • Black finish with a 0.44-inch top width
  • 30.50-inch effective length and 31.07-inch outside circumference
  • Rated for temperatures from -35 to 175 degrees
  • Built to SAE J636 and SAE J637 standards

Fitment and Application Details

Fits 1998 Porsche 911, Alternator and Blower. Fits 1996 Porsche 911, Alternator and Blower. Fits 1989-1998 Porsche 911, Fan. Fits 1989-1995 Porsche 911, Alternator. Fits 1993 Porsche 911, Blower.

Fits 1986-1991 Isuzu Trooper, Fan To Air Pump. Fits 1989 Isuzu Amigo, Fan To Air Pump. Fits 1987-1989 Isuzu Pickup, Fan To Air Pump. Fits 1981-1987 Isuzu Pickup, Fan To Air Pump, compatible with vehicles containing air conditioning. Fits 1986 Isuzu Pickup, Fan and Air Pump.

Fits 1985-1980 Ford Bronco, Alternator and Air Pump, with 40/60 amp alternator notes shown in the catalog data. Fits 1985-1979 Ford E-150 Econoline, E-150 Econoline Club Wagon, E-250 Econoline, and E-350 Econoline, Alternator and Air Pump, with application-specific pulley and alternator notes where listed. Fits 1985-1980 Ford F-150, F-250, and F-350, Alternator and Air Pump or Air Pump, depending on the year and configuration.

This part cross-references Gates 7305 and Bando B2304 for the same application.

What This Belt Helps Address

  • Worn, cracked, or glazed accessory drive belt surfaces
  • Squealing or slipping belt operation
  • Loss of alternator, blower, fan, or air pump drive function
  • Incorrect belt length for the specified pulley routing
  • Service replacement for aging OE-style belt systems

Installation Notes and Tips

Verify belt routing, pulley count, and accessory configuration before installation. This belt is listed for specific positions including alternator, blower, fan, air pump, air conditioning to alternator, and power steering to air pump applications, so match the vehicle notes carefully. Confirm the effective length and outside circumference against the original belt or service information for your exact Ford, Porsche 911, or Isuzu application.

Quality Assurance

Dayco manufactures this accessory drive belt to SAE J636 and SAE J637 standards, with a synthetic rubber compound and top-cog construction selected for accessory drive service across a wide temperature range.

Related reading

This part fits 140 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelDrive TypeTransmissionLitersCylindersPositionNotes
1998Porsche911—————Alternator and Blower—
1998Porsche911—————Fan—
1997Porsche911—————Fan—
1996Porsche911——Manual——Fan—
1996Porsche911—————Alternator and Blower—
1995Porsche911—————Alternator—
1995Porsche911——Manual——Fan—
1994Porsche911—————Alternator—
1994Porsche911——Manual——Fan—
1993Porsche911—————Alternator—
1993Porsche911—————Fan—
1993Porsche911Carrera 4————Alternator—
1993Porsche911Carrera 4————Fan—
1993Porsche911Carrera 2————Alternator—
1993Porsche911Carrera 2—Manual——Blower—
1992Porsche911———3.6LH6Alternator—
1992Porsche911—AWD—3.6LH6Fan—
1992Porsche911—RWDManual3.6LH6Fan—
1991IsuzuTrooper———2.6LL4Fan To Air Pump—
1991Porsche911———3.6LH6Alternator—
1991Porsche911———3.6LH6Fan—
1990IsuzuTrooper———2.6LL4Fan To Air Pump—
1990Porsche911—AWDManual——Alternator—
1990Porsche911—————Fan—
1990Porsche911—RWDManual——Alternator—
1989IsuzuAmigo———2.3LL4Fan To Air Pump—
1989IsuzuAmigo———2.6LL4Fan To Air Pump—
1989IsuzuPickup———2.3LL4Fan To Air Pump—
1989IsuzuPickup———2.6LL4Fan To Air Pump—
1989IsuzuTrooper———2.6LL4Fan To Air Pump—
1989Porsche911———3.6LH6Alternator—
1989Porsche911———3.6LH6Fan—
1988IsuzuPickup———2.3LL4Fan To Air Pump—
1988IsuzuPickup———2.6LL4Fan To Air Pump—
1988IsuzuTrooper—————Fan To Air Pump—
1987IsuzuPickup———2.3LL4Fan To Air Pump—
1987IsuzuPickup———1.9LL4Fan To Air PumpCompatible with vehicles containing air conditioning.
1987IsuzuTrooper———2.3LL4Fan To Air Pump—
1986IsuzuPickup———2.3LL4Fan and Air Pump—
1986IsuzuPickup———1.9LL4Fan To Air PumpCompatible with vehicles containing air conditioning.
1986IsuzuTrooper———2.3LL4Fan To Air Pump—
1985FordBronco———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1985FordE-150 Econoline———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1985FordE-150 Econoline Club Wagon———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1985FordE-250 Econoline———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1985FordF-150———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1985FordF-250———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1985IsuzuPickup———1.9LL4Fan To Air PumpCompatible with vehicles containing air conditioning.
1984FordBronco———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., 6 3/8 In. Pulley
1984FordE-150 Econoline———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., 6 3/8 In. Pulley
1984FordE-150 Econoline Club Wagon———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., 6 3/8 In. Pulley
1984FordE-250 Econoline———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., 6 3/8 In. Pulley
1984FordF-150———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., 6 3/8 In. Pulley
1984FordF-250———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., 6 3/8 In. Pulley
1984IsuzuPickup———1.9LL4Fan To Air PumpCompatible with vehicles containing air conditioning.
1984VolkswagenQuantum———1.6LL4Air Conditioning To Alternator—
1983Audi4000———1.6LL4Air Conditioning To Alternator—
1983FordBronco——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1983FordE-100 Econoline———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., w/6 3/8 In. Pulley
1983FordE-100 Econoline Club Wagon———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., w/6 3/8 In. Pulley
1983FordE-150 Econoline———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., w/6 3/8 In. Pulley
1983FordE-150 Econoline Club Wagon———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., w/6 3/8 In. Pulley
1983FordE-250 Econoline———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., w/6 3/8 In. Pulley
1983FordF-100——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1983FordF-150——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1983FordF-250——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1983IsuzuPickup———1.9LL4Fan To Air PumpCompatible with vehicles containing air conditioning.
1983VolkswagenQuantum———1.6LL4Air Conditioning To Alternator—
1982Audi4000———1.6LL4Air Conditioning To Alternator—
1982ChevroletLUV———1.8LL4Air PumpCompatible with vehicles containing air conditioning.
1982FordBronco——Automatic5.0LV8Air Pumpw/40, 60 Amp Alt.
1982FordE-100 Econoline——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1982FordE-100 Econoline Club Wagon——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1982FordE-150 Econoline——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1982FordE-150 Econoline Club Wagon——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1982FordE-250 Econoline——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1982FordE-350 Econoline——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1982FordF-100———5.0LV8Air Pumpw/40, 60 Amp Alt., Hi-Alt.
1982FordF-100———4.2LV8Air Pumpw/40, 60 Amp Alt., Hi-Alt.
1982FordF-150———5.0LV8Air Pumpw/40, 60 Amp Alt., Hi-Alt.
1982FordF-250———5.0LV8Air Pumpw/40, 60 Amp Alt., Hi-Alt.
1982IsuzuPickup———1.8LL4Fan To Air PumpCompatible with vehicles containing air conditioning.
1982VolkswagenQuantum———1.6LL4Air Conditioning To Alternator—
1981ChevroletLUV—————Air PumpCompatible with vehicles containing air conditioning.
1981FordBronco——Automatic5.0LV8Air Pumpw/40, 60 Amp Alt.
1981FordE-100 Econoline——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1981FordE-100 Econoline Club Wagon——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1981FordE-150 Econoline——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1981FordE-150 Econoline Club Wagon——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1981FordE-250 Econoline——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1981FordE-350 Econoline——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1981FordF-100———5.0LV8Air Pumpw/40, 60 Amp Alt., w/6 3/8 In. A.P. Pulley
1981FordF-100———4.2LV8Air Pumpw/40, 60 Amp Alt.
1981FordF-150———5.0LV8Air Pumpw/40, 60 Amp Alt., w/6 3/8 In. A.P. Pulley
1981FordF-250———5.0LV8Air Pumpw/40, 60 Amp Alt., w/6 3/8 In. A.P. Pulley
1981IsuzuPickup———1.8LL4Fan To Air PumpCompatible with vehicles containing air conditioning.
1980ChevroletLUV—————Fan To Air PumpCompatible with vehicles containing air conditioning.
1980FordBronco——Manual5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., Exc. Calif.
1980FordE-100 Econoline——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1980FordE-100 Econoline Club Wagon——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1980FordE-150 Econoline——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1980FordE-150 Econoline Club Wagon——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1980FordE-250 Econoline——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1980FordE-250 Econoline Club Wagon——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1980FordE-350 Econoline——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1980FordE-350 Econoline Club Wagon——Automatic5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1980FordF-100——Manual5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., Exc. Calif.
1980FordF-150——Manual5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., Exc. Calif.
1980FordF-250——Manual5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., Exc. Calif.
1980FordF-350——Manual5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt., Exc. Calif.
1980JeepCherokee———5.9LV8Power Steering To Air Pump30 1/2 In. Belt
1980JeepCJ5———5.0LV8Power Steering To Air Pump30 1/2 In. Belt
1980JeepCJ7———5.0LV8Power Steering To Air Pump30 1/2 In. Belt
1980JeepJ10———5.9LV8Power Steering To Air Pump30 1/2 In. Belt
1980JeepJ20—————Power Steering To Air Pump30 1/2 In. Belt
1980JeepWagoneer———5.9LV8Power Steering To Air Pump30 1/2 In. Belt
1979BMW320i—————Air Pump—
1979ChevroletLUV—————Fan To Air PumpCompatible with vehicles containing air conditioning.
1979FordE-100 Econoline———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1979FordE-100 Econoline Club Wagon———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1979FordE-150 Econoline———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1979FordE-150 Econoline Club Wagon———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1979FordE-250 Econoline———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1979FordE-250 Econoline Club Wagon———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1979FordE-350 Econoline———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1979FordE-350 Econoline Club Wagon———5.0LV8Alternator and Air Pumpw/40, 60 Amp Alt.
1979Porsche924—————Air Pump—
1978BMW320i—————Air Pump—
1978ChevroletLUV—————Fan To Air PumpCompatible with vehicles containing air conditioning.
1978Porsche924—————Air Pump—
1977BMW320i—————Air Pump—
1977ChevroletLUV—————Fan To Air PumpCompatible with vehicles containing air conditioning.
1977MercuryCapri———2.8LV6Fan To AlternatorFits vehicles without air conditioning.
1977Porsche924—————Air Pump—
1977SubaruStandard—————Fan, Alternator and Air Conditioning31 In. Belt
1976ChevroletLUV—————Fan To Air PumpCompatible with vehicles containing air conditioning.
1976MercuryCapri———2.8LV6Fan To AlternatorFits vehicles without air conditioning.
1975MercuryCapri———2.8LV6Fan To AlternatorFits vehicles without air conditioning.
1974ChevroletCorvette———7.4LV8Fan To Air PumpFits vehicles without air conditioning.
1973ChevroletCorvette———7.4LV8Power Steering To Alternator—
Directly replaces or cross-references 45 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 15305AMC — 3229863Autopar — FB15305Bando — B2304Beck/Arnley — 141-1131CARQUEST — 7305Driveworks — 30513Duralast — 15305Ford — 75TF-8620FAFord — D5PZ-8620-LFord — D9PZ-8620-CFord — D9UE-8620-AAFord — E0TE-8620-B1AFord — E1PZ-8620-CGates — 7305General Motors — 9433611General Motors — 9433714General Motors — 94207229General Motors — 94217920Isuzu — 8-94232-287-2Isuzu — 8-94232-287-3Jaguar — C29608Kubota — 15531-72530Kubota — FM30Kubota — FM30.1Lazorlite — L37-0775Mighty Distributing System — 15305Mitsuboshi — MF1305Motorcraft — JA-305Motorcraft — JB-312NAPA — 25-07753NAPA — 25-7305Opel — 8942072290Opel — 8942179200Optibelt — 9.5X770Optibelt — 9.5X771Optibelt — 9.5X775Pirelli — 13-306Pirelli — 15-311Porsche — 999.192.338.50Subaru — 80911-0060Suzuki — 17521-71520Volvo — 966896White — 30-3108236White — 967020