Roller Bearing 6-203-4 - 17mm ID x 40mm OD x 12mm Width - Double Sealed Replacement for 6203-2RS, Fits Delco, Denso, Bosch, John Deere, Toro & More

🔩 Premium Replacement Roller Bearing – 6-203-4
Ideal for automotive alternators, lawn equipment, and industrial machinery.

✔ Part Number: 6-203-4
✔ Bearing Type: Double Sealed Ball Bearing
✔ Inside Diameter: 17mm
✔ Outside Diameter: 40mm
✔ Width: 12mm
✔ Condition: 100% Brand New
✔ Cross Reference: Replaces 6203-2RS, 6203DU, 6203LL, 203SZZ, 203DD, 203PP, and many others
✔ Compatibility: Compatible with hundreds of Lester units and OE part numbers for brands such as Delco, Bosch, Denso, Chrysler, John Deere, Ford, Honda, Toro, Ariens, Snapper, and more.
✔ Applications: Alternators, lawn mowers, snow throwers, cut-off saws, riding mowers, compact tractors, and more.

💡 Why Choose Our Bearings?

• Built to OEM specs for long-lasting performance

• Sealed to keep out dirt and moisture

• High-speed rated and factory lubricated

• Compatible with 1000+ OE and aftermarket numbers

📦 What's in the Box:
(1) Double Sealed Roller Bearing - 6-203-4

Bullet Points (Shopify “Highlights” or Key Features)

• ✅ OEM Fitment – Direct replacement for 6203-2RS / 6203DU bearings

• ✅ Precision Dimensions – 17mm ID x 40mm OD x 12mm W

• ✅ Wide Compatibility – Fits Lester 10729–20730 & popular alternators

• ✅ Durable & Sealed – Double rubber seals for enhanced protection

• ✅ Trusted by Mechanics – Replaces bearings in John Deere, Toro, Honda, and more