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SKU:
NLT1A00471
Ships for free in 2–4 business days.
Rayco RG1625 RG1631 RG1635 Drive Belt 750121
$144.99
In Stock
$144.99
Sale price
$144.99
Regular price
This new aftermarket toothed drive belt replaces Rayco 750121 for compatible RG1625, RG1631, and RG1635 Super Jr stump grinders.
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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
- Rayco RG1625 Super Jr stump grinder
- Rayco RG1631 Super Jr stump grinder
- Rayco RG1635 Super Jr stump grinder
Product Overview
If the cutter drive stops under load, the belt skips teeth, black belt dust appears inside the guard, or cords and teeth are exposed, the belt is due for attention. Pulley damage, bad bearings, incorrect alignment, or excess shock loading can destroy the replacement unless corrected.
The belt transfers torque through matched toothed pulleys in the relevant grinder drive. Its pitch, width, length, and tooth profile must all match; visual similarity to another industrial belt is not enough.
Match the 750121 marking, tooth profile and count, width, pulley set, belt location, machine model, year, and serial number. Some RG1625 variants can use different belt sizes in different drive positions.
Key Features & Performance
- Toothed positive-drive belt for matching Rayco pulleys
- Resists slip when correctly tensioned and aligned
- Exact replacement reference for listed Super Jr applications
- Suitable for planned service or recovery after belt failure
Replaces Part Numbers
- 750121
Common Uses
- Replacing missing or sheared belt teeth
- Servicing a belt with frayed edges or exposed cords
- Keeping a verified spare for a working stump-grinding crew
Technical Specifications
- Product Type: Stump-grinder toothed drive belt
- Primary Reference: 750121
- Models: Rayco RG1625/RG1631/RG1635 Super Jr
- Condition: New aftermarket replacement
Installation & Fitment
- Disable the machine and wait for all movement to stop
- Remove guards and inspect each toothed pulley
- Correct bearing play and alignment before fitting the belt
- Set tension exactly to service specifications
- Reinstall guards and recheck tension after a short break-in period
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Why did my replacement belt fail quickly? A: Pulley wear, misalignment, wrong tension, contamination, or shock loading may have remained.
Q: Is this every belt on an RG1625? A: No. Verify the belt position and 750121 printed reference.
Q: Should belt dressing be used? A: Do not apply products unless the manufacturer specifically allows them for this toothed-belt system.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: Rayco RG1625 belt 750121, RG1631 Super Jr toothed belt, RG1635 cutter drive belt, stump grinder skips belt teeth, Rayco replacement drive belt
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.