Dayco 17645 Accessory Drive Belt
OE Quality 60-Day Returns
Dayco

Dayco 17645 Accessory Drive Belt

Brand Dayco 17645
Position Water Pump, Air Brake Compressor and Idler, Fan To Alternator and Air Conditioning, Fan and Alternator, Fan, Air Pump and Air Brake Compressor, Fan, Power Steering and Air Pump, Fan and Power Steering, Alternator and Air Pump, and Air Brake Compressor and Air Pump
Material Synthetic rubber compound
Top Width .53
Color Black
Effective Length 1638.30
Effective Length 64.50
Outside Circumference 1645.16
Outside Circumference 64.77
Angle 36
Banded Belt N
Belt Construction Top cog
Maximum Operating Temperature 175
Maximum Operating Temperature 79.4
Minimum Operating Temperature -35
Minimum Operating Temperature -37.2
Standards Sae j636, sae j637
Fits —

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

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

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

Cross-references Cummins 178423, Cummins 210956 and Cummins 3040331 for the same application. See all 41.

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Dayco 17645 Accessory Drive Belt Overview

The Dayco 17645 accessory drive belt is a top-cog belt built from a synthetic rubber compound for dependable operation in accessory drive systems. With a 0.53-inch top width, 64.50-inch effective length, and 64.77-inch outside circumference, it is sized for specific OE-style applications that require accurate belt routing and consistent drive performance.

Compatible With Ford, GM, Cummins, John Deere, Volvo, Mack, and other listed applications, this Dayco 17645 belt is a direct replacement option for vehicles and equipment that use a 36-degree belt profile. It is also cross-referenced to Goodyear 17645 for the same application.

Key Features

  • Synthetic rubber compound construction for accessory drive use
  • Top-cog design helps the belt flex around pulleys
  • 0.53-inch top width for OE-style fitment
  • 64.50-inch effective length and 64.77-inch outside circumference
  • 36-degree angle specification
  • Black finish
  • Meets SAE J636 and SAE J637 standards
  • Operating temperature range from -35 to 175 degrees

Detailed Product Description

Dayco 17645 is an accessory drive belt engineered for applications that rely on stable power transfer to engine-driven accessories. The top-cog construction improves flexibility, while the synthetic rubber compound supports consistent belt tracking in demanding underhood conditions. This makes it a practical replacement for Ford truck and car applications, GM applications, and selected industrial or off-road equipment that call for the same dimensions and profile.

For buyers searching for a Dayco 17645 accessory drive belt, Ford accessory drive belt replacement, or GM accessory drive belt by part number, this belt matches the listed dimensional and construction requirements. It is also referenced by Cummins, John Deere, Mack, Volvo, Navistar, Thermo-King, and White part numbers in the interchange data.

Common Uses

  • Restoring belt drive operation after cracking, glazing, or wear
  • Correcting squeal caused by belt slip or loss of tension
  • Replacing a stretched belt that no longer maintains proper accessory drive
  • Addressing accessory drive noise in Ford, GM, and related applications
  • Supporting reliable operation of alternator, water pump, and other belt-driven accessories where specified

Installation Notes

Verify belt length, width, angle, and pulley routing against the original part before installation. Inspect pulleys, tensioners, and idlers for wear or misalignment, since those conditions can shorten belt life. Confirm the application by part number 17645 and compare against the vehicle or equipment service information before final installation.

Quality Assurance

This Dayco belt is manufactured to SAE J636 and SAE J637 standards and is specified for a wide operating temperature range. For shoppers comparing Dayco 17645 against OE references for Ford and GM applications, the listed dimensions and interchange data provide a reliable basis for selection.

Related reading

This part fits 0 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
Directly replaces or cross-references 41 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Cummins — 178423Cummins — 210956Cummins — 3040331Delco-Remy — 1963142Dynacraft — D1102-3963Ford — C9PZ-8620-DLFord — D3HE-8A615-BAFord — E0HT-8620-FAFord — E0TE-8620-FAFord — E8HT-8A615-AAFord — E8HT-8620-CAFord — E8HT-8620-HAFord — E8HZ-8620-AFord — E8HZ-8620-C1Ford — E8HZ-8620-GGeneral Motors — 793853General Motors — 1486784General Motors — 3827859General Motors — 9433934General Motors — 11502406Goodyear — 17645John Deere — 61X10695BJohn Deere — AR53099John Deere — N202856Lazorlite — L38-1640Mack — 88GB176Mack — 88GB439-P647Mack — 88GB445P645Mitsubishi — 1671911Motorcraft — JC-647Motorcraft — JC-647CMotorcraft — JC-650Navistar — 80130-C1Thermo-King — 2045G55-H96Volvo — V1091001White — 02-7024813White — 04-905.27.18White — 30-3076253White — 20804-5131White — 8002599White — V1090850