(6) Mower Blade Bolt Beveled Washers K5651-34372 Fits Kubota Riding Mower RCK54 RCK60 RCK72

What It Is

This is a set of six beveled washers (K5651-34372) designed specifically for securing mower blades on Kubota riding mowers with RCK54, RCK60, or RCK72 deck models. The beveled shape ensures proper blade alignment and torque distribution during operation.

Fitment & Compatibility

Before buying, verify:

• Deck model: Fits Kubota RCK54 (54-inch), RCK60 (60-inch), and RCK72 (72-inch) decks only. Not for other brands or non-Kubota decks.
• OEM part number: Cross-reference with Kubota K5651-34372. Aftermarket version, so expect slight dimensional variations.
• Bolt size: Designed for standard 5/16" or 3/8" blade bolts (check your deck manual). Measure your existing washer inner diameter—should be ~0.312" (5/16") or 0.375" (3/8").
• Quantity: Six washers are included, enough for a three-blade deck (two per blade). If your deck has four blades, you’ll need two sets.

Key Things to Know

• Quality concerns: Rating is 3.2/5 with only 2 reviews—limited feedback. Some users report softer metal than OEM, which can deform under high torque.
• Installation: Easy—remove old washers, place beveled side facing the blade (concave side down). Torque to 40-50 ft-lbs per Kubota specs. No special tools needed.
• Common gotcha: The beveled edge must face the blade, not the bolt head. Reversing them can cause blade wobble or loosening.
• Durability: If you mow heavy grass or rocky terrain, OEM Kubota washers ($12-18 for 6) may last longer. These are fine for light-to-moderate use.

Should You Buy It

Buy this set if you need a quick, affordable replacement for lost or worn washers on a Kubota RCK deck and don’t mind slightly softer metal. Skip it for commercial/heavy use or if you want guaranteed OEM fit—spend the extra $5-10 on genuine Kubota washers.