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Description
WB03 760 6600 STIHL Spindle Pulley | RZ 552.0 & RZ 752.0 52-Inch Mower Deck
The STIHL WB03 760 6600 Spindle Pulley is a genuine OEM replacement component for compatible STIHL RZ Series zero-turn mowers equipped with 52-inch mower decks. This spindle pulley is part of the mower deck's pulley, belt, and idler-arm system and helps transfer power through the deck drive system.
Features That Make a Difference
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Genuine STIHL OEM replacement part
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Part Number: WB03 760 6600
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Product: Spindle Pulley
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Designed for compatible 52-inch RZ Series mower decks
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Part of the mower deck pulley and belt system.
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Helps transfer belt-driven power to the spindle assembly.
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Ideal for replacing a worn or damaged deck pulley.
Specifications
| Specification | Details |
|---|---|
| Part Number | WB03 760 6600 |
| Product | Spindle Pulley |
| Deck Size | 52" |
| Product Type | Mower Deck Pulley |
| Brand | STIHL |
| Application | RZ Series Zero-Turn Mowers |
| Replacement Type | Genuine OEM |
Compatible Models
Based on the supplied STIHL parts information, the WB03 760 6600 Spindle Pulley is associated with the following 52-inch mower deck applications:
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RZ 552.0 — 52" Mower Deck - Pulleys, Belts & Idler Arms
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RZ 552.0 K — 52" Mower Deck - Pulleys, Belts & Idler Arms
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RZ 752.0 K — 52" Mower Deck - Pulleys, Belts & Idler Arms
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RZ 752.0i — 52" Mower Deck - Pulleys, Belts & Idler Arms
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RZ 752.0i K — 52" Mower Deck - Pulleys, Belts & Idler Arms
Always verify the exact mower model, deck configuration, and current STIHL parts diagram before ordering.
What Does the Spindle Pulley Do?
The spindle pulley is a key part of the mower deck's belt-drive system. The deck belt rotates the pulley, which transfers rotational power to the spindle assembly and ultimately drives the mower blade.
A properly functioning pulley helps maintain:
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Smooth belt operation
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Proper blade drive
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Consistent cutting performance
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Correct belt alignment
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Reliable mower deck operation
Signs of a Worn Pulley
Inspect the spindle pulley if you notice:
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Excessive pulley wobble
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Unusual deck noise
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Belt slipping
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Belt misalignment
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Excessive vibration
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Damaged pulley surfaces
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Abnormal belt wear
A damaged pulley can contribute to premature belt wear and poor cutting performance.
Installation & Maintenance
Before servicing the mower deck:
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Shut off the engine and remove the ignition key.
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Make sure the blades and all moving components have completely stopped.
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Follow the STIHL service procedure for accessing the mower deck.
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Inspect the spindle, pulley, belt, and related hardware.
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Replace the damaged pulley with the correct OEM part.
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Ensure the belt is correctly routed and seated.
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Verify proper pulley alignment before operating the mower.
Always follow the current STIHL service and safety instructions for your specific mower.
Important Compatibility Information
This product is identified as:
WB03 760 6600 — PULLEY SPINDLE
The supplied applications indicate use with 52-inch mower decks on the RZ 552.0 and RZ 752.0 series.
Because mower configurations may vary by model and production date, confirm the exact model and parts diagram before purchasing.
Why Buy from Barry’s Power Equipment?
Barry’s Power Equipment provides quality OEM replacement parts for STIHL outdoor power equipment.
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Genuine OEM replacement parts
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Quality STIHL components
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Competitive Pricing
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Fast Shipping
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Expert Customer Support
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Parts for professional and residential equipment
Keep your RZ Series mower deck's belt-drive system operating properly with the STIHL WB03 760 6600 Spindle Pulley.
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