8TEN Cogged Belt for Toro TimeCutter SW4200 ZS3200S ZS4200S SW3200 SS3225 SS4225 SS4200 SS4250 MX3450 130-6975

What It Is

This is a cogged (toothed) V-belt designed for the primary drive system on select Toro TimeCutter zero-turn mowers. It transfers power from the engine to the deck blades, and the cogged design reduces slipping and heat buildup under load.

Fitment & Compatibility

Before buying, confirm your mower model and serial number. This belt is listed for Toro TimeCutter SW4200, ZS3200S, ZS4200S, SW3200, SS3225, SS4225, SS4200, SS4250, and MX3450. It replaces OEM part number 130-6975. Measure your old belt’s length (should be ~93.5 inches) and width (1/2 inch). Verify deck size: this fits 42-inch and 50-inch decks on compatible models. If your mower uses a different OEM belt number (e.g., 130-6976), this will not fit. Check your owner’s manual or existing belt for the exact part number.

Key Things to Know

• Quality vs. OEM: This is an aftermarket replacement. It matches OEM specs but may have slightly shorter lifespan under heavy use. Fine for residential use, but commercial operators may prefer OEM.
• Installation difficulty: Moderate. You’ll need to remove the deck, release belt tension (spring-loaded idler), and route the belt around pulleys. A belt installation diagram is helpful.
• Common gotcha: The cogged side must face the pulleys. Installing it backward causes premature wear and slippage.
• Check tension: After installation, ensure the belt is snug but not overly tight. Over-tensioning can damage bearings and pulleys.

Should You Buy It

This belt is a solid, budget-friendly replacement for DIY homeowners with compatible Toro TimeCutter models. If you’re comfortable with basic mower maintenance and want to save ~$10–15 over OEM, this is a good choice. For heavy commercial use or if you prefer exact OEM fit, stick with the genuine Toro 130-6975 belt.