OEM Replacement - for Toro 119-8819, Compatible with Toro 42 Inch Deck TimeCutter MX4200 SW4200 ZS4200, SS4225 SS4235 SS4250 SS4260 - Durable, Aramid Cord Belt

What It Is

This is an OEM replacement belt (Part #119-8819) for Toro’s 42-inch deck on select TimeCutter and SS Series zero-turn mowers. It drives the blades and deck spindles, using aramid cord construction for added durability under heavy cutting loads.

Fitment & Compatibility

Before buying, confirm your mower model and deck size. This belt fits:

• Toro TimeCutter models: MX4200, SW4200, ZS4200 (all with 42-inch deck)
• Toro SS Series models: SS4225, SS4235, SS4250, SS4260 (all with 42-inch deck)

Check three things:

1. Deck size – Must be exactly 42 inches. Larger or smaller decks use different belts.
2. OEM vs aftermarket – This is a genuine Toro part, so no cross-reference needed. If using an aftermarket belt, measure length (typically 119-8819 is ~119.2 inches long, 1/2 inch wide).
3. Visual inspection – If your old belt is frayed, stretched, or cracked, replace immediately. Measure your old belt’s length and width to confirm compatibility.

Not compatible with: 44-inch, 50-inch, or 54-inch decks, or any non-Toro brand.

Key Things to Know

• Durability – Aramid cord resists stretching and heat better than standard rubber belts, so it lasts longer under heavy grass or frequent use.
• Installation – Moderate difficulty; you’ll need to release deck tension (usually a spring-loaded idler pulley) and route belt around spindles and pulleys per your deck diagram. Allow 30–45 minutes.
• Common gotcha – If your mower vibrates or blades stop mid-cut after replacement, check belt routing. Misalignment or a worn idler pulley can cause premature failure.
• Warranty – OEM Toro part, so it matches factory specs exactly. No guesswork on fit.

Should You Buy It

Yes, if you own one of the listed Toro models with a 42-inch deck and need a reliable, drop-in replacement that won’t stretch or snap mid-season. It’s priced competitively with aftermarket options but offers guaranteed OEM fit and aramid cord longevity. Skip it only if you’re on a tight budget and don’t mind risking aftermarket variability.