HomeBelts and Cooling > Accessory Drive Belt System ComponentsGates 2/9720PB Accessory Drive Belt - Fan and Alternator
Part #: 2/9720PB

Gates 2/9720PB Accessory Drive Belt - Fan and Alternator

Fan and Alternator
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$70.58Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Gates High Capacity Joined V-Belt 2/9720PB

The Gates High Capacity Joined V-Belt part number 2/9720PB is engineered for reliable accessory drive belt system performance. Designed with durable materials and precise construction, this belt supports efficient power transmission in various automotive applications.

  • Top width: 1.125 inches (28 mm)
  • Effective length: 71.97 inches (1828 mm)
  • Outside circumference: 72.85 inches (1850 mm)
  • Construction: Notched design for flexibility and heat dissipation
  • Cord material: Polyester for strength and durability
  • Belt material: EPDM for resistance to heat, ozone, and wear
  • Number of strands: 2 with a top width per strand of 0.5 inches (13 mm)
  • Cross section designation: Hc50
  • Angle: 36 degrees for optimal engagement

Detailed Product Description

The Gates High Capacity Joined V-Belt 2/9720PB features a notched construction that enhances flexibility and reduces heat buildup during operation. Its polyester cord material provides tensile strength and resistance to elongation, while the EPDM belt material offers durability against environmental factors such as ozone and temperature extremes. The belt’s dual-strand design with a 1.125-inch top width ensures efficient power transfer in accessory drive belt systems. The Hc50 cross section designation and 36-degree angle optimize belt seating and load distribution, making it suitable for demanding automotive applications.

About the High Capacity Joined V-Belt Product Line

The High Capacity Joined V-Belt line by Gates is designed to meet the needs of vehicles requiring robust accessory drive belts capable of handling higher loads and extended service intervals. This product line emphasizes durability and consistent performance, making it a reliable choice for automotive professionals working on various makes and models.

Common Applications and Issues Addressed

  • Replacement for worn or cracked accessory drive belts in vehicles
  • Solutions for belts exhibiting slipping or squealing noises
  • Addressing belt elongation or loss of tension over time
  • Improving power transmission efficiency in accessory systems
  • Mitigating premature belt wear due to heat or environmental exposure

Installation Notes and Tips

Ensure proper belt routing according to the vehicle manufacturer’s specifications before installation. Verify the belt tension and alignment to prevent premature wear or noise. The notched design allows for easier bending around pulleys, but care should be taken to avoid twisting the belt during installation. Use appropriate tools to measure belt length and tension for optimal performance.

Quality Assurance and Warranty

Gates manufactures the High Capacity Joined V-Belt 2/9720PB to meet stringent quality standards, ensuring consistent performance and durability. The use of EPDM and polyester materials contributes to the belt’s resistance to wear and environmental factors. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandGates
Part Number2/9720PB
Top Width1.125
Top Width28
ConstructionNotched
Cord MaterialPolyester
Cross Section DesignationHc50
Strand Quantity2
Top Width Per Strand.5
Top Width Per Strand13
Effective Length1828
Effective Length71.97
Outside Circumference1850
Outside Circumference72.85
TypeHigh capacity joined v-belt
Belt MaterialEpdm
Angle36
9837Yes
Angle36
Belt MaterialEpdm
ContructionNotched
Cord MaterialPolyester
NotchedYes
Number of Strands2
SectionHc50
Top Width Per Strand (in).5
Top Width Per Strand (mm)13
TypeHigh capacity joined v-belt

This part fits 0 vehicles. Search below:

YearMakeModelPositionNotes

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

2/9720PB25-18260-225-9720-22B177202T1772088GB437P1188GB439P72288GB445P720GT2/9720PB

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.