Titan part 424-285 is an AX-27 Grip Notch Belt designed for the drive system on compatible Titan PowrTwin and PowrLiner stripers. This belt features a grip notch profile that provides excellent traction, reduced vibration, and longer service life compared to standard wrapped belts. Replacing a worn, cracked, or stretched belt restores proper power transmission to the pump or drive train, ensuring consistent striping performance and preventing unexpected breakdowns.
| Part Number | 424-285 |
|---|---|
| Part Description | AX-27 Grip Notch Belt |
| Brand | Titan |
| Fits | PowrTwin 4900GH, 4900 XLT, 4500, 3500 50th Anniversary; PowrLiner 8900 XLT SP, 6900 XLT SP, 5000, 4900 XLT, 4000 |
| Condition | New |
The Titan 424-285 AX-27 Grip Notch Belt is a high‑performance V‑belt used to drive the hydraulic pump, gearbox, or main drive train on Titan's PowrTwin and PowrLiner line stripers. The grip notch design features transverse grooves that increase flexibility, reduce heat buildup, and provide superior grip on small‑diameter pulleys.
Over time, belts can become cracked, glazed, stretched, or oil‑soaked, leading to slippage, reduced pump output, or complete failure. A worn belt may also cause squealing, vibration, or erratic machine operation. Replacing with genuine Titan part 424-285 restores original drive efficiency, eliminates slippage, and prevents costly downtime.
| Power transmission | Transfers engine power to pump or drive train |
|---|---|
| Grip notch design | Improves flexibility and grip on small pulleys |
| Vibration reduction | Smoother operation, less wear on bearings |
| Cracks or fraying | Visible damage to belt body or cords |
|---|---|
| Glazing | Shiny, hard surface that slips under load |
| Stretching | Belt rides low in pulley grooves, loses tension |
| Oil contamination | Swollen or softened belt material |
| Squealing / vibration | Noise indicates insufficient grip or misalignment |
Titan part 424-285 is compatible with the following striper models. Always confirm fitment using the correct parts diagram for your exact machine and serial number.
| Model | Component |
|---|---|
| PowrTwin 4900GH | Belt |
| PowrTwin 4900 XLT | Belt |
| PowrTwin 4500 | Belt |
| PowrTwin 3500 50th Anniversary | Belt |
| PowrLiner 8900 XLT SP | Belt |
| PowrLiner 6900 XLT SP | Belt |
| PowrLiner 5000 | Belt |
| PowrLiner 4900 XLT | Belt |
| PowrLiner 4000 | Belt |
When replacing the drive belt, it is often advisable to inspect or replace associated components to ensure a complete and reliable repair.
Inspect for wear, grooves, or rust. Worn pulleys can damage a new belt and cause slippage.
Check bearing smoothness and spring tension. Replace if noisy or seized.
Oil contamination on a belt often comes from a leaking seal; repair the leak first.
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