Ferris IS600Z Transaxle Drive Belt 5103885 / 5103885YP – 117.24 in Wrapped Aramid
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| Brand / Family | Compatible Applications |
|---|---|
| Ferris | IS600Z configurations; catalogs include 44-, 48- and selected 52-inch mower setups depending on serial/build |
Product Overview
Unlike a deck blade belt, this belt transfers engine power into the hydrostatic drive system. Cracking, glazing, edge wear or loss of tension can show up as slipping drive response, inconsistent ground speed or a belt that jumps the pulley path.
Ferris supersedes 5103885 to 5103885YP in current parts data.
Key Features & Performance
- Power-transfer component: Transfers engine output through the specified drive system and must maintain the correct pulley engagement.
- Wear is visible: Glazing, cracks, frayed edges, chunking or abnormal stretch are strong replacement indicators.
- Use the correct belt path: Length, section and machine serial/build should be verified because deck and transaxle belts can look similar.
- Product-specific note: Ferris supersedes 5103885 to 5103885YP in current parts data.
Technical Specifications
- Belt section: A-section
- Effective length: 117.24 in
- Construction: Wrapped aramid
- System: Transaxle / hydro drive
Replaces / Reference Part Numbers
5103885, 5103885YP
Common Replacement Reasons
- Cracking, glazing, frayed edges or missing belt material
- Slipping or inconsistent drive response
- Belt length/tension no longer remains within service range
Frequently Asked Questions
How do I confirm this is the correct part?
Confirm the machine model/serial and that you are replacing the transaxle-drive belt, not a mower-deck belt.
Is this an OEM part?
Unless the listing is explicitly identified as genuine/OEM in the product data, treat it as a replacement component. Use the verified reference numbers, equipment application and physical configuration above to match your original part.
What should I check before installation?
Deck width alone is not enough for fitment because belt routing can change by serial and drive group.
Fitment note: Equipment manufacturers may use different components within the same model family based on engine, serial number or production date. Confirm the original part number and machine/engine details before ordering.