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Mitsuboshi Super KB Standard V-Belt 0.63 in. W X 64 in. L For Riding Mowers

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Support American manufacturers + independent hardware retailers in one purchase.

Meet the Mitsuboshi Super KB Standard V-Belt 0.63 in. W x 64 in. L for Riding Mowers—the trusted drive belt that keeps your mower moving with predictable performance when it matter…

Mitsuboshi MPN 5LK640A In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $29.99. Our online price is $32.99.
$32.99
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About Product Overview

Meet the Mitsuboshi Super KB Standard V-Belt 0.63 in. W x 64 in. L for Riding Mowers—the trusted drive belt that keeps your mower moving with predictable performance when it matters most. Built as part of the Super KB family and designed for standard 5LK applications, this belt delivers a dependable link between your engine and deck/drive pulleys so you can finish the job without surprise interruptions.

  • Exact specifications for a precise fit — 0.63 in. width, 64 in. length, designed to match 5LK belt routing found on many riding mowers. This exact geometry helps maintain proper belt tension and alignment across pulleys and idlers.
  • 5LK compatibility — Engineered for riding mowers that rely on the standard 5LK belt profile, ensuring smooth power transfer to both drive wheels and mower deck components.
  • Sleeve packaging — Thoughtful packaging protects the belt from dust and handling wear during storage and transit, so it arrives ready for installation.
  • Color and build alignment — Gray belt in the standard style, matching common mower configurations and maintaining consistent performance in typical mowing conditions.

Why this belt stands out in typical mower maintenance shows up in real-world scenarios. If your riding mower’s drive system or deck drive uses a 5LK 0.63 x 64 in. belt, this Mitsuboshi Super KB belt provides a reliable, straightforward replacement that fits without forcing pulley misalignment or pulley-arm strain. It’s particularly well-suited for mid-season replacements or routine maintenance cycles, helping you avoid the downtime that comes with an undersized or misfitting belt.

  • Ideal for a wide range of riding mowers where a standard 5LK belt is specified, offering a straightforward, no-hussle replacement that respects existing pulley spacing and routing.
  • Practical for seasonal upkeep — swap in this precise belt during maintenance to keep RPMs steady, blade speed consistent, and drive traction reliable.
  • Clear, predictable performance — when installed correctly, the belt supports consistent engine-to-drive and engine-to-deck power transfer, reducing belt slip and uneven blade operation.

Pro tips for getting the most from your Mitsuboshi Super KB Standard V-Belt include verifying that your mower uses a 5LK belt with a 0.63 in. width and 64 in. length, checking for worn pulleys or misaligned housings before install, and routing the belt according to your mower’s manual to maintain optimal tension. With its precise dimensions and dedicated 5LK fit, this belt is a practical, reliable choice for riders who want to keep their lawn equipment moving smoothly season after season.

The Details Specifications

Brand Mitsuboshi
SKU 25624
UPC 034494556408
Unit 0
Case Pack Quantity 1 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 14 × 4 × 2
Weight 1 lbs
Cubic Feet 0.04926 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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