STIHL WB02 704 2105 61" Mower Belt | OEM RZ 261 Deck Belt

Product Number: WB02 704 2105

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Product Brand: Stihl
Product Type: Parts

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STIHL WB02 704 2105 OEM 61" Mower Belt

The STIHL WB02 704 2105 Mower Belt is a genuine OEM STIHL replacement belt for select STIHL RZ zero-turn mower deck applications. This belt is listed as BELT, B-SECT, 164.2" EFL-ARAMID and is used on the STIHL RZ 261.0 in the 61" Mower Deck - Clutch & Support section.

Mower deck belts are critical to proper deck engagement and cutting performance. A worn, stretched, cracked, or slipping belt can cause poor blade operation, belt noise, reduced cutting performance, uneven cut quality, and premature wear to pulleys, idlers, clutch components, and related deck parts.

Always verify your full STIHL mower model, deck size, original belt part number, belt routing, clutch setup, and parts diagram before ordering. Belt fitment can vary by deck size, model, and deck drive configuration.


Product Details

Brand STIHL
Part Number WB02 704 2105
OEM Description Belt, B-Sect, 164.2" EFL-Aramid
Product Type Mower Deck Belt
Deck Size 61"
Common Deck Section 61" Mower Deck - Clutch & Support
Compatible Model Reference STIHL RZ 261.0 where specified
OEM / Aftermarket Genuine OEM STIHL replacement part

Compatible STIHL Model Reference

STIHL WB02 704 2105 is listed for the following mower deck application:

  • STIHL RZ 261.0 - 61" Mower Deck, Clutch & Support

Important: Confirm your mower has the correct 61" deck and that your STIHL parts diagram lists WB02 704 2105 before ordering. Do not order by model or deck size alone.


Key Features

  • Genuine OEM STIHL 61" mower belt
  • Part number WB02 704 2105
  • OEM description: Belt, B-Sect, 164.2" EFL-Aramid
  • Listed for STIHL RZ 261.0 where specified
  • Used in the 61" mower deck clutch and support system
  • Aramid belt construction for mower deck drive use
  • Helps restore proper deck engagement and blade drive operation
  • Factory-correct replacement when listed in your STIHL parts diagram

Why Choose an OEM STIHL Mower Belt?

A mower belt must match the correct pulley profile, belt length, routing, and deck drive system. Using the wrong belt can cause slipping, poor engagement, belt jumping, premature wear, and reduced cutting performance.

Genuine STIHL mower belts are built to match the deck system they are designed for. When your parts diagram lists WB02 704 2105, this OEM belt is the correct replacement for that application.

  • Correct OEM fit when specified by STIHL
  • Designed for compatible 61" STIHL mower deck applications
  • Helps maintain proper belt tension and deck operation
  • Reduces guesswork compared to universal belts
  • Recommended for maintaining STIHL mower cutting performance

When to Replace Your Mower Belt

Replace the mower belt if it is cracked, glazed, frayed, stretched, slipping, or damaged. A failing belt can affect deck engagement and cutting performance.

  • Belt is cracked, frayed, glazed, or worn
  • Belt slips or squeals under load
  • Deck does not engage properly
  • Blades do not maintain proper speed
  • Cut quality is uneven or inconsistent
  • Belt jumps off pulleys or does not track correctly
  • Parts diagram lists STIHL WB02 704 2105 for your mower

Important Fitment Notes

  • This is a 61" mower belt for select STIHL RZ 261.0 applications
  • Verify the original belt part number before ordering
  • Do not order by deck size alone
  • Confirm belt routing, clutch setup, pulley layout, and parts diagram
  • Inspect pulleys, idlers, clutch components, and related hardware when replacing belts

Pre-Purchase Checklist

Before ordering STIHL WB02 704 2105, confirm:

  • Your full STIHL mower model number
  • Your mower has the 61" mower deck
  • Your original belt part number
  • Your parts diagram lists WB02 704 2105
  • Your belt routing matches the 61" deck diagram
  • Your clutch, pulleys, idlers, and support components are in serviceable condition

Installation and Service Notes

Belt replacement should be performed with the mower turned off, key removed, parking brake engaged, and all moving parts stopped. Follow the STIHL service instructions and belt routing diagram for your exact mower.

  • Take a photo of the belt routing before removing the old belt
  • Inspect clutch, idler pulleys, spindle pulleys, and tensioner components
  • Replace worn or noisy pulleys before installing a new belt
  • Make sure the belt is seated correctly in all pulley grooves
  • Verify proper belt tension and deck engagement after installation
  • Run and recheck belt tracking before returning the mower to service

Part Number / Search Terms

STIHL WB02 704 2105 may also be searched as:

  • STIHL WB02 704 2105
  • WB02 704 2105 belt
  • WB02 704 2105 mower belt
  • STIHL WB02 704 2105 deck belt
  • STIHL 61" mower belt
  • STIHL 61 inch mower belt
  • STIHL RZ 261 belt
  • STIHL RZ 261.0 belt
  • STIHL RZ 261 mower deck belt
  • STIHL RZ 261 clutch belt
  • STIHL 61" deck clutch belt
  • STIHL zero turn mower belt
  • STIHL OEM mower belt
  • STIHL B section mower belt
  • STIHL 164.2" EFL aramid belt

Frequently Asked Questions

What is STIHL WB02 704 2105?

STIHL WB02 704 2105 is a genuine OEM 61" mower belt used on select STIHL RZ 261.0 mower deck applications.

What model does this mower belt fit?

This belt is listed for the STIHL RZ 261.0 in the 61" Mower Deck - Clutch & Support section where specified in the parts diagram.

Is this belt for a 61" deck?

Yes. This belt is listed for the 61" mower deck application on the compatible STIHL RZ 261.0 model.

How do I know if this belt fits my mower?

Verify your full mower model number, deck size, original belt part number, belt routing, clutch setup, and STIHL parts diagram before ordering.

Is this an OEM STIHL belt?

Yes. This listing is for a genuine OEM STIHL replacement mower belt.


P&P Small Engines stocks genuine STIHL mower belts, blades, pulleys, idlers, spindles, filters, oils, accessories, and OEM replacement parts for homeowners and professionals.