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Mitsuboshi Super KB Standard V-Belt 0.63 in. W X 90 in. L For Riding Mowers
Mitsuboshi Super KB Standard V-Belt 0.63 in. W X 90 in. L For Riding Mowers
Mitsuboshi Super KB Standard V-Belt 0.63 in. W X 90 in. L For Riding Mowers
Mitsuboshi Super KB Standard V-Belt 0.63 in. W X 90 in. L For Riding Mowers
Mitsuboshi Super KB Standard V-Belt 0.63 in. W X 90 in. L For Riding Mowers
Mitsuboshi Super KB Standard V-Belt 0.63 in. W X 90 in. L For Riding Mowers

Mitsuboshi Super KB Standard V-Belt 0.63 in. W X 90 in. L For Riding Mowers

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Replace worn or stretched belt on your riding mower with the Mitsuboshi Super KB Standard V-Belt, a precise, durable 0.63 in. wide by 90 in. long belt designed for deck drive syste…

Mitsuboshi MPN 5LK900A
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

Typical Store Price i
Typical store price: low $37.99, average $44.99
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About Product Overview

Replace worn or stretched belt on your riding mower with the Mitsuboshi Super KB Standard V-Belt, a precise, durable 0.63 in. wide by 90 in. long belt designed for deck drive systems. This 5LK belt, encased in a protective sleeve, delivers dependable power transfer and steady mowing performance across seasons.

Fit, specs, and what's included

  • Width: 0.63 in
  • Length: 90 in
  • Type: 5LK
  • Style: Standard
  • Color: Gray
  • Packaging: Sleeve
  • Brand: Mitsuboshi • Sub Brand: Super KB
  • Application: Riding mowers (deck drive systems that require a 5LK, 90" belt)

Why this belt stands out

  • Precise cross-section—the 5LK profile is a common, reliable fit for many riding mower decks, helping maintain proper tension and alignment.
  • Durable, purpose-built design—part of the Mitsuboshi Super KB line, engineered to withstand the routine flex and heat of deck drives for steady performance over time.
  • Protected packaging—shipped in a sleeve to minimize handling damage and keep the belt pristine until installation.

Ideal use cases

  • Replacing a worn, stretched, or cracked deck drive belt on riding mowers that require a 90" 5LK belt.
  • Seasonal mower maintenance to prevent belt-related downtime during peak mowing periods.
  • Prolonging mower life by restoring efficient power transfer and consistent blade engagement.

Installation and care tips

  • Power off the mower, remove the spark plug cap, and follow the mower’s service manual for belt routing.
  • Check pulleys and idlers for wear and misalignment; replace any damaged components to maximize belt life.
  • Route the belt along all pulleys exactly as designed, then apply the correct tension per your mower’s specifications; avoid overtightening to prevent bearing wear.
  • After installation, run the mower briefly to ensure smooth operation and verify proper alignment before resuming mowing tasks.

Choose the Mitsuboshi Super KB Standard V-Belt in 0.63 in. by 90 in. to ensure a dependable, precise fit for your riding mower’s deck drive. This sleeve-packaged, 5LK belt is a practical, long-lasting replacement that supports efficient cutting performance and reliable mower operation season after season.

The Details Specifications

Brand Mitsuboshi
SKU 2007052
UPC 034494559003
Unit 0
Case Pack Quantity 1 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 20 × 4 × 2
Weight 1 lbs
Cubic Feet 0.07577 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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