Gates 2/9730PB | Accessory Drive Belt

Part Number
Green Stripe PowerBand Heavy-Duty Joined V-Belt

Fits: 89-96 Mack CH, 89-93 Mack RB, 95-96 Mack RB, 90-95 Mack RD, 90-93 Mack RM, 90-93 Mack RW, 93-94 Mack FDM

Special Price $74.79 Regular Price $87.99
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Estimated Ship Date: 1 Business Day or Less

Designed for problem, heavy-duty, heavily vibrating applications requiring belt sets. Tie-band feature joining belts together ensures stability lacking in ordinary belt sets.

  • Even load distribution between strands provides better shock load absorption.
  • Belt cannot turn over or slip off drive.
  • Unique tensile cord design gives belt extra strength, added flexibility and shock-load resistance.
  • Molded notches reduce bending stress, especially on small diameter pulleys, while dissipating heat.
  • Meets or exceeds SAE J636 specifications.

Gates - Driven By Possibility

BRAND: Gates


  • 1996-1989 Mack, CH Series, Mack 6-Cyl. 12.0 L Diesel, Fan & Alt.
  • Green Stripe® PowerBand® Heavy-Duty Joined V-Belt
  • Green Stripe PowerBand Heavy-Duty Joined V-Belt
  • Heavy-Duty V-Belt


Belt MaterialEPDM
Cord MaterialPolyester
Number of Strands2
Outside Circumference1879
Outside Circumference73.99
Top Width28
Top Width1.125
Top Width Per Strand (in).5
Top Width Per Strand (mm)13
TypeHigh Capacity Joined V-Belt

W/73 3/8" Belt O.C.; Preferred Belt



  • NAPA Belts/Hose: 25-9730-2
  • Goodyear: 2/17725TT
  • Mack: 88GB445P730
  • Dayco: 2B17730
  • NAPA: 25-18555-2
  • Goodyear: 2/17731TT
  • Mack: 88GB437P13
  • CARQUEST: 2/9730PB
  • Mack: 88GB439P732
  • ACDelco: 2T17730


  • 1995-1996 Mack RB - Position: Fan and Alternator
  • 1990-1993 Mack RM - Position: Fan and Alternator
  • 1990-1993 Mack RW - Position: Fan and Alternator
  • 1990-1995 Mack RD - Position: Fan and Alternator
  • 1993-1994 Mack FDM - Position: Fan and Alternator
  • 1989-1996 Mack CH - Position: Fan and Alternator
  • 1989-1993 Mack RB - Position: Fan and Alternator
Customer Questions
Can a serpentine belt cause smoke?
Yes, a serpentine belt can cause smoke. A serpentine belt is an essential component of a vehicle's engine system. It drives various accessories such as the alternator, power steering pump, water pump, and air conditioning compressor. If the serpentine belt becomes worn, damaged, or misaligned, it can cause friction and generate smoke.
Why is my serpentine belt squealing?
The serpentine belt can squeal due to various reasons, including tension issues, worn-out belt, or a problem with the belt's pulleys.
Is my serpentine belt too tight?
If your serpentine belt is causing issues like excessive noise or accelerated wear on the pulleys, it may indicate that the belt is too tight.
Why did my serpentine belt come off?
Serpentine belts can come off due to factors such as belt wear, improper tension, misaligned pulleys, or a faulty tensioner.
What types of automotive products does Gates offer?
Gates offers a wide range of automotive products, including belts, hoses, tensioners, and more.
I'm looking for a replacement belt for my vehicle. Can you help me understand the different options available from Gates and recommend the best one for my specific make and model?
Yes, Gates offers a range of replacement belts for various applications. To find the best one for your specific make and model, it is recommended to consult the Gates website or reach out to their customer support.
Are there any specific maintenance for Gates products?
Yes, there are specific maintenance and installation guidelines to follow when using Gates products to ensure optimal performance and longevity.
Please, mind that only logged in users can submit questions

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