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Gates TR20451 Accessory Drive Belt - Fan and Alternator, Fan and Generator or Generator and Water Pump
| Brand | Gates TR20451 |
|---|---|
| Position | Fan and Generator, Generator and Water Pump, and Fan and Alternator |
| Top Width | .604 |
| Top Width | 15 |
| Construction | Notched |
| Cord Material | Polyester |
| Cross Section Designation | S |
| Strand Quantity | 1 |
| Effective Length | 1145 |
| Effective Length | 45.07 |
| Outside Circumference | 1155 |
| Outside Circumference | 45.47 |
| Type | Truck & bus v-belt |
| Belt Material | Epdm |
| Angle | 30 |
| 9837 | Yes |
| Angle | 30 |
| Belt Material | Epdm |
| Construction | Notched |
| Cord Material | Polyester |
| Notched | Yes |
| Number of Strands | 1 |
| Section | S |
| Type | Truck & bus v-belt |
| Fits | — |
Truck & bus series. Built for heavy-duty accessory drive applications.
Notched construction. Helps the belt absorb normal shock loads without damage.
EPDM belt material. Offers durable performance in demanding service.
Cross-references AMS Automotive 4159, AMS Automotive 4169 and Anchor 2670 for the same application. See all 68.
Truck & Bus V-Belt for Heavy-Duty Drive Systems
The Gates TR20451 is a Truck & Bus V-Belt built for heavy-duty accessory drive systems in trucks, buses, and off-road equipment. It uses a notched EPDM construction with polyester cord to handle normal shock loads while maintaining stable belt performance.
Key Features
- Gates Truck & Bus V-Belt line for demanding commercial-duty applications
- Notched construction for flexibility in accessory drive routing
- EPDM belt material for durability in high-heat engine environments
- Polyester cord reinforcement for consistent tension retention
- Section S profile with a 30-degree angle and 1-strand design
- Effective length: 45.07 in. (1145 mm)
- Outside circumference: 45.47 in. (1155 mm)
Product Details
The Gates Green Stripe Truck and Bus Series focuses on heavy-duty belt service where accessory drive loads are frequent and shock loading is normal. The TR20451 V-belt is engineered with a notched profile and EPDM construction to support smoother flexing around pulleys, while the polyester cord helps maintain belt stability under operating stress. This part number, TR20451, is also referenced in interchange listings for applications such as Ford truck and bus accessory drive setups, including T20451 cross-reference usage.
For buyers searching for a truck accessory drive belt, commercial V-belt replacement, or a Gates TR20451 belt for heavy-duty equipment, this part is built around the dimensions and construction details that matter in service fitment. It is a direct-match style accessory drive belt for systems that use an S-section V-belt with the listed effective length and outside circumference.
What This Belt Helps Address
- Squealing or slipping from a worn accessory drive belt
- Cracking, glazing, or edge wear on an aging V-belt
- Loss of belt tension in heavy-duty truck and bus service
- Accessory drive instability caused by shock loading
- Replacement needs for commercial vehicles using an S-section belt profile
Installation Notes and Tips
Verify pulley alignment, belt routing, and the required section profile before installation. Compare the existing belt length and outside circumference to the TR20451 specifications, especially on Ford truck and bus applications where accessory drive dimensions must match closely. Inspect related pulleys and tensioning components for wear before installing the new belt.
Quality Assurance
Gates is known for heavy-duty belt engineering across commercial truck, bus, and off-road applications. The TR20451 is part of the Gates Truck & Bus V-Belt line and is built to handle normal shock loads without damage to the belt.
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