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Gates 7404 Accessory Drive Belt - Air Pump
| Brand | Gates 7404 |
|---|---|
| Position | Air Pump |
| No | |
| Angle | 38 |
| Angle | 38 |
| Belt Material | EPDM |
| Belt Material | EPDM |
| Construction | Standard |
| Construction | Standard |
| Cord Material | Polyester |
| Cord Material | Polyester |
| Cross Section Designation | HC31 |
| Effective Length | 40.5 |
| Effective Length | 1029 |
| Notched | No |
| Number of Strands | 1 |
| Outside Circumference | 40.75 |
| Outside Circumference | 1035 |
| Section | HC31 |
| Strand Quantity | 1 |
| Top Width | .325 |
| Top Width | 8 |
| Type | High Capacity V-Belt (Standard) |
| Type | High Capacity V-Belt (Standard) |
| Product line | High Capacity V-Belt (Standard) |
| Fits | Buick · 16 vehicles |
High capacity V-belt. Built for demanding engine drives and steady accessory performance.
Variable notched design. Tightens as it heats to help reduce slippage and noise.
EPDM construction. Durable belt material with polyester cords for long service life.
Cross-references BBB Industries 11405, BENDIX PREMIUM BRAKE SHOES 767 and Bosch 7404 for the same application. See all 33.
Gates 7404 V-Belt Overview
The Gates 7404 is a High Capacity V-Belt (Standard) built for accessory drive service in demanding engine environments. It uses EPDM belt material with polyester cord reinforcement and a single-strand HC31 profile to deliver stable drive performance as temperatures rise.
For Buick LeSabre, Buick Century, Buick Regal, and Buick Skylark applications, this belt is specified for the air pump position and is listed across 1972-1975 model years. The Gates 7404 is a direct replacement choice when you need the correct belt dimensions and construction for the listed fitments.
Key Features
- High Capacity V-Belt (Standard) construction for accessory drive service
- EPDM belt material for heat-resistant operation
- Polyester cord material for reinforcement and dimensional stability
- HC31 cross section with 38-degree angle
- Top width: 0.325 in. / 8 mm
- Effective length: 40.5 in. / 1029 mm
- Outside circumference: 40.75 in. / 1035 mm
- Single-strand design
Product Details
Gates designs the 7404 as a durable accessory drive belt for engines that place steady load on the belt system. The EPDM construction helps the belt maintain performance under thermal cycling, while the polyester cord supports consistent tension and fit. This standard high capacity V-belt is notched as a non-notched design and is sized to match the listed HC31 specification for the confirmed applications.
This part cross-references Bosch 7404 for the same application.
Common Problems This Belt Can Address
- Accessory drive belt squeal during engine operation
- Belt slippage as engine temperature increases
- Loss of drive to the air pump on listed Buick applications
- Noise caused by a worn, glazed, or stretched V-belt
- Incorrect belt length or profile on the specified accessory drive system
Installation Notes and Tips
Verify belt routing, pulley condition, and tensioner or adjustment range before installation. Confirm the HC31 profile, 38-degree angle, and listed length measurements against the removed belt or service information for your vehicle. For fitment, this belt is listed for 1972 Buick LeSabre, air pump; 1972 Buick Skylark, air pump; 1973-1974 Buick Century, air pump; 1973-1974 Buick Regal, air pump; and 1973-1975 Buick LeSabre, air pump.
After installation, check alignment and recheck tension after initial run-in to help maintain proper accessory drive performance.
Quality Assurance
Gates manufactures this belt as part of its High Capacity V-Belt (Standard) line, using EPDM and polyester reinforcement for long service life in demanding engine drives. The part number is 7404.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1975 | Buick | LeSabre | 5.7L | V8 | GAS | Air Pump | HVAC heater hose with A/C, fits Serpentine Belt application.; High Capacity V-Belt (Standard) |
| 1975 | Buick | LeSabre | 5.7L | V8 | GAS | Air Pump | W/X.C. - Radiator Coolant Hose.; High Capacity V-Belt (Standard) |
| 1974 | Buick | Century | 5.7L | V8 | GAS | Air Pump | HVAC heater hose with A/C, fits Serpentine Belt application.; High Capacity V-Belt (Standard) |
| 1974 | Buick | Century | 5.7L | V8 | GAS | Air Pump | W/X.C. - Radiator Coolant Hose.; High Capacity V-Belt (Standard) |
| 1974 | Buick | LeSabre | 5.7L | V8 | GAS | Air Pump | HVAC heater hose with A/C, fits Serpentine Belt application.; High Capacity V-Belt (Standard) |
| 1974 | Buick | LeSabre | 5.7L | V8 | GAS | Air Pump | W/X.C. - Radiator Coolant Hose.; High Capacity V-Belt (Standard) |
| 1974 | Buick | Regal | 5.7L | V8 | GAS | Air Pump | HVAC heater hose with A/C, fits Serpentine Belt application.; High Capacity V-Belt (Standard) |
| 1974 | Buick | Regal | 5.7L | V8 | GAS | Air Pump | W/X.C. - Radiator Coolant Hose.; High Capacity V-Belt (Standard) |
| 1973 | Buick | Century | 5.7L | V8 | GAS | Air Pump | HVAC heater hose with A/C, fits Serpentine Belt application.; High Capacity V-Belt (Standard) |
| 1973 | Buick | Century | 5.7L | V8 | GAS | Air Pump | W/X.C. - Radiator Coolant Hose.; High Capacity V-Belt (Standard) |
| 1973 | Buick | LeSabre | 5.7L | V8 | GAS | Air Pump | HVAC heater hose with A/C, fits Serpentine Belt application.; High Capacity V-Belt (Standard) |
| 1973 | Buick | LeSabre | 5.7L | V8 | GAS | Air Pump | W/X.C. - Radiator Coolant Hose.; High Capacity V-Belt (Standard) |
| 1973 | Buick | Regal | 5.7L | V8 | GAS | Air Pump | HVAC heater hose with A/C, fits Serpentine Belt application.; High Capacity V-Belt (Standard) |
| 1973 | Buick | Regal | 5.7L | V8 | GAS | Air Pump | W/X.C. - Radiator Coolant Hose.; High Capacity V-Belt (Standard) |
| 1972 | Buick | LeSabre | 5.7L | V8 | GAS | Air Pump | High Capacity V-Belt (Standard) |
| 1972 | Buick | Skylark | 5.7L | V8 | GAS | Air Pump | High Capacity V-Belt (Standard) |
| No rows match your filter. | |||||||