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SKU:
ZZ3F08879
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139T 1-1/8" Rear Drive Belt 40024-04 1204-0063 Fit Harley Davidson 2004-2006
$99.09
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
139T 1-1/8" Rear Drive Belt for Harley Davidson
This 139T 1-1/8" rear drive belt, referencing OEM cross-reference numbers 40024-04 and 1204-0063, is a direct replacement for the primary and final drive system on select Harley Davidson models from 2004 to 2006. This 139T 1-1/8" belt transfers power from the engine to the rear wheel, ensuring reliable and consistent performance. Designed as a quality aftermarket component for Harley Davidson touring and softail models of that era, this belt meets the dimensional specifications required for a proper fit.
Overview
This is a 139-tooth, 1-1/8-inch wide rear drive belt built to replace the original belt on compatible Harley Davidson motorcycles. It transmits engine power to the rear wheel with high tensile strength and low stretch for consistent throttle response. Intended for riders needing a dependable replacement for their 2004-2006 Harley Davidson, this belt restores the drivetrain's original function.
Built For Performance
- 139 tooth count matches the original 40024-04 and 1204-0063 specifications for accurate gearing and speedometer calibration.
- 1-1/8 inch width provides the necessary surface area for high-torque application.
- Constructed with high-strength rubber and embedded tensile cords to resist flex fatigue and impact damage.
- Reinforced tooth profile is designed to engage pulleys smoothly and reduce noise and vibration.
- Direct OEM-style replacement for models that originally used the 40024-04 or 1204-0063 belt.
Fits These Machines
- for Harley Davidson 2004 Dyna Low Rider
- for Harley Davidson 2005 Dyna Super Glide
- for Harley Davidson 2006 Dyna Wide Glide
- for Harley Davidson 2004 Softail Standard
- for Harley Davidson 2005 Softail Deluxe
- for Harley Davidson 2006 Softail Heritage Classic
On-The-Job Use
- Replaces worn or damaged rear drive belts on touring and cruiser motorcycles.
- Use during scheduled drivetrain maintenance intervals to prevent belt failure on the road.
- Suitable for daily commuting or long-distance highway riding where belt integrity is critical.
- Commonly installed by DIY mechanics and professional service technicians during full drivetrain rebuilds.
Specs At A Glance
| Belt Type | Rear Drive Belt |
| Tooth Count | 139T |
| Width | 1-1/8 inch |
| Part Number(s) | 40024-04, 1204-0063 |
Good To Know
Q: How does this belt compare to the original Harley Davidson belt? A: This belt is built to the same dimensional and tooth count specifications as the original, ensuring a proper fit and function. It is a high-quality aftermarket alternative that meets the performance needs of the intended models.
Q: What should I check before installing this belt? A: Verify the tooth count and width of your current belt, and confirm your motorcycle model and year fall within the 2004-2006 range. Inspect the pulley and sprocket for wear to ensure a smooth installation.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.