Exmark 109-1057-SL Cog Belt with Sleeve | Replaces 109-1057

Exmark 109-1057-SL Cog Belt with Sleeve

The Exmark 109-1057-SL Cog Belt with Sleeve is an OEM replacement cog belt listed as BELT, COG A 50.55 WITH SLEEVE. This part replaces Exmark 109-1057 and is used on select Exmark Turf Tracer walk-behind mower and Z-Spray ZSX3624 applications.

This part is commonly searched as Exmark 109-1057-SL, Exmark 1091057SL, Exmark 109-1057, Exmark cog belt, Exmark cog belt with sleeve, Turf Tracer cog belt, Z-Spray cog belt, and Exmark 50.55 cog belt.

Always verify your exact Exmark model number, serial number, belt routing, pulley layout, idler location, tensioner setup, and parts diagram before ordering. Do not order by mower family, deck size, or belt appearance alone because belt fitment can vary by model and serial range.

Product Details

Key Features

• OEM Exmark cog belt with sleeve
• Part number 109-1057-SL
• Replaces Exmark 109-1057
• Listed as BELT, COG A 50.55 WITH SLEEVE
• Used on select Turf Tracer and Z-Spray ZSX3624 applications
• Factory-style replacement when listed in your Exmark parts diagram
• Important to verify model, serial range, belt routing, and pulley layout before ordering

Fits Select Exmark Turf Tracer THP Models

The following fitment is based on the supplied where-used information. Always confirm your exact model number, serial number, and parts manual before ordering.

Fits Select Exmark Turf Tracer TTS Models

Fits Select Exmark Z-Spray Models

Important Fitment Notes

• This listing is for Exmark OEM part number 109-1057-SL
• Replaces Exmark part number 109-1057
• Product description: BELT, COG A 50.55 WITH SLEEVE
• Verify your exact Turf Tracer or Z-Spray model number and serial number before ordering
• Confirm your Exmark parts diagram lists 109-1057-SL or 109-1057 for the belt location you are repairing
• Check belt routing, cog/tooth profile, pulley layout, idler pulleys, tensioner, belt guides, and related hardware
• Do not order by mower family, deck size, belt length, or appearance alone
• Pulleys, idlers, tension springs, belt guides, brackets, bolts, washers, and related hardware are not included unless shown or stated

When to Replace a Cog Belt

• Belt is cracked, glazed, frayed, stretched, or missing teeth
• Cogged belt slips, jumps, squeals, or tracks poorly
• Drive system has vibration, noise, or uneven belt wear
• Pulleys or idlers have damaged the belt surface
• Your Exmark parts diagram lists part number 109-1057-SL or 109-1057 for the repair

Installation and Service Notes

Before servicing belts or drive components, park the machine on a flat surface, disengage the blades or spreader/sprayer system as applicable, set the parking brake, shut the engine off, remove the key, and wait for all moving parts to stop.

• Take a photo of belt routing before removing the old belt
• Inspect pulleys, idlers, tensioners, belt guides, brackets, bearings, and springs during service
• Replace worn or damaged related parts before installing the new belt
• Confirm the belt is seated correctly in the pulleys and routed exactly as shown in the parts diagram
• Check belt tracking and tension before returning the unit to service
• Follow the Exmark service manual for your exact model and serial number

Part Number / Search Terms

• Exmark 109-1057-SL
• Exmark 1091057SL
• Exmark 109-1057
• Exmark 1091057
• 109-1057-SL cog belt
• 109-1057 cog belt
• Exmark cog belt with sleeve
• Exmark belt cog A 50.55
• Exmark Turf Tracer cog belt
• Turf Tracer belt
• Z-Spray ZSX3624 belt
• Exmark Z-Spray cog belt
• OEM Exmark belts
• OEM Exmark mower parts

Frequently Asked Questions

P&P Small Engines stocks Exmark cog belts, Turf Tracer belts, Z-Spray belts, pulleys, idlers, blades, filters, spindles, hardware, and commercial mower replacement parts.