Fan Belt 6718730 for Bobcat S150 S175 – Service Part

Service planning — fan belt 6718730 kept in stock means Bobcat skid steer loaders stay on schedule instead of sitting idle waiting for emergency freight.

Technical Specifications

Application Suitability

Why Bobcat Skid Steer Fan Belts Fail Earlier Than Expected

A fan belt service part for Bobcat skid steer loader rarely fails alone — the tensioner and idler pulley are usually wearing at the same rate.

Fleet operators often see a replacement belt snap within weeks of installation because the worn tensioner was left in place. On mining sites and construction yards running Bobcat S175 and T190 loaders through continuous shifts, belt failures cascade into overheated engines and cracked cylinder heads. [NEED_CITE: cooling system preventive maintenance intervals for skid steer loaders in heavy duty cycles] The cost is never just the belt — it is the loader sitting idle while a new part crosses the country, the project deadline slipping, and the crew standing around a machine that should be moving material.

Where This Belt Sits in the Machine Service Life

The fan belt 6718730 drives the cooling fan on Bobcat S150 through S205 skid steer loaders, sitting at the front of the cooling system service cycle. It is a predictable wear item — not a surprise failure waiting to happen. Fleet maintenance planners who treat it as scheduled replacement inventory rather than an emergency purchase eliminate most cooling-related unplanned downtime across the Bobcat skid steer loader range.

When a Single Belt Swap Becomes a Cooling System Refresh

On machines past 4,000 operating hours, replacing only the belt addresses the symptom while ignoring the cause. The tensioner spring loses tension over time, the idler pulley bearing develops play, and the water pump bearing begins to weep. Combining belt, tensioner, and pulley replacement in a single service event reduces total labor cost and prevents the new belt from being destroyed by adjacent worn components within a matter of weeks. [NEED_CITE: belt drive system component interaction and progressive wear patterns]

Reading the Wear Signs Before the Belt Snaps

The ribbed side tells the story first. Longitudinal cracking that reaches the cord layer means the belt is past its safe service life. Glazing on the contact surface indicates slippage generating enough heat to harden the rubber compound. Frayed edges point to pulley misalignment that will destroy any replacement belt installed without correction. A thumb-press check that shows excessive deflection confirms the tensioner is no longer holding proper load. Any one of these signs means the fan belt service part for Bobcat skid steer loader needs scheduling into the next maintenance window.

Material and Profile Specifications That Matter in the Field

The high-tensile polyester cord construction handles the shock loads that occur when the cooling fan accelerates from idle to full speed under load. Heat-resistant rubber compounds maintain flexibility at the elevated temperatures found inside the enclosed engine compartment of a skid steer loader, where airflow is restricted compared to open-frame equipment. The pre-tensioned profile ensures correct seating in the pulley grooves from initial installation, reducing the break-in period where new belts are most vulnerable to slippage and premature wear.

The Hidden Cost of Reactive Belt Procurement

Machines that run until the belt snaps cost far more than the emergency freight bill. The engine overheats before the operator notices the temperature gauge climbing, and thermal stress damages head gaskets and warps mating surfaces. [NEED_CITE: engine overheating consequences from cooling fan drive failure in compact loaders] A fleet running multiple Bobcat S175 and T180 units on a remote site cannot afford repeated unplanned downtime from a component that costs a fraction of the damage it causes. Stocking one belt per machine on-site removes the lead time entirely and converts an emergency into a routine swap.

Why Fleet Operators Source This Component Here

Own production on selected belt lines and qualified sourced supply operate under a single warranty, so the fan belt service part for Bobcat skid steer loader carries the same quality documentation whether produced in-house or sourced from certified partners. Eight product categories ship under one account, meaning belts, tensioners, filters, and seal kits consolidate into a single consignment. Minimum order starts from one piece for emergency replacements, while fleet-scale stocking orders receive the same pricing structure. Guangzhou warehouse stock enables fast dispatch on common items like the 6718730 belt for the widely used S175 and S185 models. Part identification is confirmed from the machine model alone when the nameplate is worn or painted over. Cross-reference verification covers superseded numbers, so older Bobcat 5600 and 773 models remain supported even as OEM part numbers shift across generations. Technical team support confirms compatibility and grade before orders ship, preventing the costly mismatch of receiving a belt variant that does not fit the specific engine build on your machine.

Documentation & Verification

• Commercial invoice listing 6718730 belt with machine compatibility noted for customs clearance
• Cross-reference sheet marking 6718730 as reference only with superseded number equivalents
• Quality inspection record covering belt width, profile depth, and cord tension verification
• Warranty terms specifying coverage period and manufacturing defect claim procedure
• Packing photographs showing belt condition and protective wrapping before crate closure
• HS code and customs documentation support for cross-border shipment of rubber drive belts

Service Interval & Stocking Guidance

• Schedule belt inspection at every 500-hour service interval using visual and thumb-press checks
• Stock one spare 6718730 belt per machine on-site to eliminate freight lead time during failures
• Replace tensioner and idler pulley simultaneously on machines exceeding 4,000 operating hours
• Store spare belts in sealed packaging away from direct sunlight and ozone sources to prevent rubber degradation
• Review replacement history across the fleet to identify machines with accelerated wear indicating alignment issues

Requesting a Maintenance Quote

Provide your Bobcat skid steer loader model and current operating hours to receive a replacement interval recommendation aligned with your duty cycle. For fleet-level planning, share the number of units and their serial ranges so the correct belt profile variant is confirmed across all machines. If your fleet includes older 5600 or 773 models, note any previous engine rebuilds that may have changed the pulley configuration.

Frequently Asked Questions

Q: How often should the fan belt be replaced on a Bobcat skid steer loader under typical duty cycles?
A: Standard replacement intervals fall within the 500-hour scheduled service window for most Bobcat skid steer loader models operating under normal construction and agricultural conditions. Machines running continuous-duty loading cycles or operating in high-ambient-temperature environments may require inspection at shorter intervals. Visible cracking on the ribbed side or glazing on the contact surface are definitive indicators that replacement is overdue regardless of hours logged.

Q: Should the belt tensioner and pulleys be replaced at the same time as the belt?
A: On machines with significant operating hours, replacing the tensioner and idler pulley alongside the belt prevents premature failure of the new belt caused by worn adjacent components. A tensioner with a fatigued spring or a pulley with bearing play will destroy a new belt within weeks. Combining these replacements in a single service event reduces total labor cost and extends the interval before the next cooling system intervention is required.

Q: How many spare belts should a fleet operator stock per machine?
A: Holding one spare fan belt per machine on-site eliminates the freight lead time that turns a routine swap into an extended downtime event. Fan belts are low-cost, high-consequence items — the storage space is minimal while the protection against unplanned stoppage is substantial. Fleet operators running multiple Bobcat S150 through S205 units should align spare quantities with their consumption history across the scheduled maintenance calendar.

Q: Are replacement belts still available for older Bobcat 5600 and 773 models?
A: Yes, aftermarket supply for the 6718730 belt continues to cover older Bobcat 5600 and 773 models even as OEM support thins for these legacy machines. Cross-reference verification confirms the correct belt profile and length for each specific model variant. Confirming the machine serial number ensures the belt ordered matches the engine configuration, as pulley arrangements changed across production years.