Dayco 17490 Accessory Drive Belt
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Dayco

Dayco 17490 Accessory Drive Belt

Brand Dayco 17490
Position Air Conditioning
Angle 36
Belt Construction Top Cog
Color Black
Effective Length 49
Effective Length 1244.60
Material Synthetic Rubber Compound
Maximum Operating Temperature 79.4
Maximum Operating Temperature 175
Minimum Operating Temperature -37.2
Minimum Operating Temperature -35
Outside Circumference 49.27
Outside Circumference 1251.46
Standards SAE J636, SAE J637
Top Width .53
Fits Subaru, Toyota, Alfa Romeo, Ford, Mercury, Dodge, Fargo, Studebaker, and American Motors · 23 vehicles

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

Synthetic rubber compound. Built from durable material for dependable everyday operation.

SAE J636, J637. Meets recognized standards for accessory drive belt quality.

Cross-references ACDelco 2T17490, ACDelco 9490HD and ACDelco 17490 for the same application. See all 116.

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Not what you need? See all Accessory Drive Belt options

Dayco 17490 Accessory Drive Belt Overview

The Dayco 17490 accessory drive belt is a black synthetic rubber compound belt built with a top cog construction for dependable belt drive performance. With a 49-inch effective length and 0.53-inch top width, it is sized for specific accessory drive applications on vehicles such as the Ford E-100 Econoline, Toyota Celica, and Subaru Standard.

  • Synthetic rubber compound construction for accessory drive use
  • Top cog design for flexible routing around pulleys
  • 49-inch effective length and 49.27-inch outside circumference
  • 0.53-inch top width with a 36-degree angle
  • Black finish with SAE J636 and SAE J637 standards
  • Operating temperature range from -35 to 175 degrees

Fitment and Application Details

Dayco 17490 is an OE-style accessory drive belt for confirmed applications including 1979 Ford E-100 Econoline, Fan and Power Steering; 1979 Ford E-150 Econoline, Fan and Power Steering; and 1979 Ford E-250 Econoline, Fan and Power Steering. It also fits 1979 Subaru Standard, Fan, Air Conditioning and Idler, 1979 Toyota Land Cruiser, Air Conditioning, and 1979-1981 Toyota Celica, Fan and Power Steering. This part cross-references Gates 9490 and ACDelco 17490 for the same application.

What This Belt Helps Address

  • Squealing or slipping accessory drive belt noise
  • Loss of belt tension affecting fan, A/C, or power steering operation
  • Cracking, glazing, or wear on an aging belt
  • Drive issues on vehicles with routed fan and power steering systems
  • Replacement needs for 1978-1979 Ford, Mercury, Subaru, and Toyota belt applications

Installation Notes and Tips

Verify belt routing, pulley alignment, and the required application before installation. Confirm the 49-inch belt length and 0.53-inch width match the vehicle’s accessory drive system, especially on 1979 Ford E-Series vans, 1978-1979 Mercury Cougar and Grand Marquis applications, and 1979 Toyota Celica or Land Cruiser configurations. Inspect pulleys and tensioning components at the same time to help prevent premature belt wear.

Quality Assurance

Dayco manufactures this belt to SAE J636 and SAE J637 standards for accessory drive service. The Dayco 17490 part number is also used across multiple OE and aftermarket references, including 17490, which supports accurate replacement matching for the listed applications.

Related reading

This part fits 23 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1987SubaruStandard1.6LH4Air Conditioning—
1987SubaruStandard1.8LH4Air Conditioning—
1986SubaruStandard——Air Conditioning—
1981ToyotaCelica2.8LL6Fan and Power Steering—
1980ToyotaCelica2.6LL6Fan and Power Steering—
1979FordE-100 Econoline5.0LV8Fan and Power SteeringCompatible with vehicles containing air conditioning.
1979FordE-100 Econoline Club Wagon5.0LV8Fan and Power SteeringCompatible with vehicles containing air conditioning.
1979FordE-150 Econoline5.0LV8Fan and Power SteeringCompatible with vehicles containing air conditioning.
1979FordE-150 Econoline Club Wagon5.0LV8Fan and Power SteeringCompatible with vehicles containing air conditioning.
1979FordE-250 Econoline5.0LV8Fan and Power SteeringCompatible with vehicles containing air conditioning.
1979FordE-250 Econoline Club Wagon5.0LV8Fan and Power SteeringCompatible with vehicles containing air conditioning.
1979FordE-350 Econoline5.0LV8Fan and Power SteeringCompatible with vehicles containing air conditioning.
1979FordE-350 Econoline Club Wagon5.0LV8Fan and Power SteeringCompatible with vehicles containing air conditioning.
1979FordThunderbird5.8LV8Fan and Power Steeringw/A.C., Ford Pump
1979MercuryCougar5.8LV8Fan and Power SteeringCompatible with vehicles containing air conditioning.
1979SubaruStandard——Fan, Air Conditioning and Idler49 In. Belt
1979ToyotaCelica2.6LL6Fan and Power Steering—
1979ToyotaLand Cruiser——Air ConditioningFJ55
1978FordLTD6.6LV8Fan and Power Steeringw/o A.C., Saginaw Pump
1978FordThunderbird5.8LV8Fan and Power Steeringw/A.C., Ford Pump
1978MercuryCougar5.8LV8Fan and Power Steeringw/A.C., Ford Pump
1978MercuryGrand Marquis6.6LV8Fan and Power Steeringw/o A.C., Saginaw Pump
1978MercuryMarquis6.6LV8Fan and Power Steeringw/o A.C., Saginaw Pump
Directly replaces or cross-references 116 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 2T17490ACDelco — 9490HDACDelco — 17490AMC — 3188943Atlas — 7490Autocar LLC — 03-1107873Bando — B3480CARQUEST — 2/9490PBCARQUEST — 9490CARQUEST — 9490HDCarrier Transicold — 16000113DCase — 01-9344Case — A17490Case — A33679Case — A34820Case — A135826Case — A139089Case — K308448Case — L50593Case — L57802Coolaire — 1947Cummins — 182808Cummins — 3040308Daimler — A0039970792K7Delco-Remy — 1965306Driveworks — 49017Duralast — 17490Dynacraft — D1102-0216FiatAllis — 73075784Ford — C7TA-8620-AFord — C7TZ-8620-AFord — C8HA-8620-AAFord — C8HA-8620-SFord — C8HS-8620-AAFord — C8HT-8620-AAFord — C9PZ-8620-FPFord — D0AE-8620-DFord — D5TE-8A615-BAFord — D5TE-8620-HAFord — D8AE-8620-BAFord — E4HT-8A615-FAFord — F6HT-8620-AABFord — F6HZ-8620-SFord — F7HT-8620-VAFord — XC45-8620-MAFreightliner — GT17492Freightliner — GTFLN9490Freshstart — 17490Gates — 2/9490PBGates — 13A1245Gates — 8279Gates — 8605Gates — 9490Gates — 9490HDGeneral Motors — 960516General Motors — 2484214General Motors — 3947147General Motors — 9433903Goodyear — 17491Hough — 189527H1Kubota — 07510-00048Kubota — A48Lazorlite — L38-1245Mack — 88GB354P32Mack — 88GB439P491Mack — 25154441Massey Ferguson — 189976M1Massey Ferguson — 194605M1Massey Ferguson — 525833M1Mighty Distributing System — 17490Mitsuboshi — MF6480Mopar — B17491AMopar — B17494AMotorcraft — JC-487Motorcraft — JC-493Motorcraft — JC-495NAPA — 25-9490NAPA — 25-9490-2NAPA — 25-9490HDNAPA — 25-12455NAPA — 25-12455-2Navistar — 190502-R2Navistar — 358313-C91Navistar — 385738-R1Navistar — 446193-C1Navistar — 446193-C91Navistar — 3513247C1Neoplan — 17490Optibelt — 12.5X1245Perkins — NA000192Perkins — NA000553Pirelli — 17-490Pleasurecraft — R-066004Thermo-King — 2028B89H52Toyota — 90916-02083Toyota — 90916-02088Toyota — 99522-11270Uniroyal — 17490Volvo — 966-388-6135Volvo — 80222-0016Volvo — 80222-0021Volvo — 80222-8004Volvo — 967191Volvo — V1090979Waukesha — 197003White — 02-7001391White — 02-7015398White — 02-7104601White — 30-3075079White — 30-3075087White — 20804-5039White — 700825White — 966388White — 967255White — V1090822Yazoo — 205-3487