Bad Boy Mowers 041-6400-00 pump belt shown as a genuine OEM replacement drive belt

Bad Boy

Bad Boy Mowers Pump Belt Part Number 041-6400-00 OEM | OEM Replacement Part

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Pump Belt — Part 041-6400-00
Bad Boy Mowers 041-6400-00 — Pump Belt
Also known as: Hydraulic Pump Drive Belt, Hydro Belt, Pump Drive Belt
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Specifications
Attribute Detail
Part Number 041-6400-00
Brand Bad Boy Mowers
Part Type Pump Belt (Hydraulic Pump Drive Belt)
Fitment Select Bad Boy Mowers Zero-Turn Models
OEM Status Genuine OEM Replacement Part
Quantity 1 Belt Per Order
The Bad Boy Mowers 041-6400-00 is a genuine OEM pump belt — also referred to as a hydraulic pump drive belt or hydro belt — designed to transfer power from the engine to the hydraulic pump system on select Bad Boy Mowers zero-turn riding mowers. This belt plays a critical role in maintaining proper hydraulic drive function, ensuring smooth forward and reverse ground travel. It is a direct factory replacement for machines showing belt wear, slipping, cracking, or loss of drive response.
Key Features▼
Genuine OEM Bad Boy Mowers Belt
Part 041-6400-00 is a factory-specification pump belt manufactured to the exact dimensions and tensile requirements set by Bad Boy Mowers. Unlike aftermarket alternatives, this OEM belt ensures a precise fit and meets the original engineering tolerances for your machine.
Hydraulic Pump Drive Application
This belt is specifically engineered to drive the hydraulic pump on Bad Boy zero-turn mowers, transferring rotational engine power to the hydrostatic transmission system. A worn or broken pump belt results in loss of drive — replacing it with part 041-6400-00 restores full mower function.
Direct OEM Cross-Reference Replacement
Part number 041-6400-00 is the original Bad Boy Mowers reference number for this pump belt. When ordering, use this number to confirm compatibility. It may also be cross-referenced in service manuals as a hydro belt or hydraulic drive belt for applicable Bad Boy models.
Fitment for Bad Boy Zero-Turn Mowers
Designed to fit select Bad Boy Mowers zero-turn models including MZ, ZT, AOS, and Outlaw series machines. Always verify your model and serial number against the Bad Boy Mowers parts diagram before installing belt 041-6400-00 to ensure correct fitment.
Compatible Equipment▼

The Bad Boy Mowers 041-6400-00 pump belt is compatible with a range of Bad Boy zero-turn riding mowers. Always confirm your model number and serial number before ordering. Compatible models for pump belt 041-6400-00 include the Bad Boy MZ series, Bad Boy ZT series, Bad Boy Outlaw series, and Bad Boy AOS series zero-turn mowers.

  • Bad Boy MZ Series Zero-Turn Mowers
  • Bad Boy ZT Series Zero-Turn Mowers
  • Bad Boy Outlaw Series Zero-Turn Mowers
  • Bad Boy AOS Series Zero-Turn Mowers
  • Select Bad Boy Magnum Series Models

Always verify your specific model and serial number against the official Bad Boy Mowers parts diagram or contact our support team to confirm fitment of part 041-6400-00 for your machine.

Common Questions▼
Q: What does the Bad Boy Mowers pump belt 041-6400-00 do?
A: The 041-6400-00 pump belt transfers engine power to the hydraulic pump on Bad Boy zero-turn mowers. It is a critical drivetrain component — if this belt breaks or slips, the mower will lose hydraulic drive function and will not move under its own power.
Q: How do I know when to replace the hydraulic pump belt on my Bad Boy mower?
A: Signs that your Bad Boy mower pump belt needs replacement include visible cracking or fraying on the belt surface, the mower not moving in drive, squealing or slipping sounds during operation, or the mower moving slowly or unevenly. Replacing part 041-6400-00 at the first sign of wear prevents further drivetrain damage.
Q: Is part 041-6400-00 a genuine Bad Boy Mowers OEM belt or an aftermarket replacement?
A: Part number 041-6400-00 is a genuine OEM Bad Boy Mowers pump belt sourced directly from the manufacturer. It meets the original factory specifications for fit, length, width, and construction — unlike generic aftermarket belts that may not match OEM tolerances.
Q: What Bad Boy Mowers models use the 041-6400-00 pump belt?
A: The 041-6400-00 pump belt fits select Bad Boy Mowers zero-turn models including the MZ, ZT, Outlaw, AOS, and Magnum series. To confirm fitment for your specific machine, reference your model number and serial number against the Bad Boy Mowers parts diagram or contact our expert support team.
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