| Brand Name | SeaSummer | SKU | 0345-BC-2721110-01 |
| ID | 1" | Pulley | 7.18" |
| Rotation | CCW | Belt | 1/2" or 5/8" Belt |
| Torque | 125 ft. lbs. | Maximum Engine RPM | 3,600 RPM |
| Torque | 1000v | Temperature | Up to 370°F (188°C) |
| Net Weight | 5kg | Carton Dimensions | 68 x 46 x 26 cm |
| MOQ | 100pcs | Customized Services | OEM |
| Delivery Time | 30 days, volume-dependent | Packaging | Cardboard packaging |
Products Description

Lawn Mower Tractor PTO Clutch Bobcat - 2721110
This electromagnetic PTO blade clutch is built as an aftermarket replacement assembly for Bobcat zero-turn mowers and cross-brand turf machines using OEM part number 2721110. These mid-commercial lawn machines are widely adopted by landscape contractors, property maintenance crews and equipment rental yards, which means the clutch has to endure frequent blade power switching throughout every workday.
During daily field operation, the clutch assembly sits under the mower deck, where heat accumulates continuously. It is also constantly exposed to grass clippings, fine soil dust and morning dew moisture. Many low-cost aftermarket alternatives struggle under these harsh outdoor conditions. They tend to suffer weakened torque holding, strange bearing noise, or unexpected blade cutout while mowing overgrown turf.
This replacement clutch comes with a 1-inch shaft bore, CCW rotation and a 7.18-inch pulley compatible with both 1/2-inch and 5/8-inch drive belts. It delivers 125 ft. lbs holding torque and supports peak engine speed up to 3,600 RPM. The coil passes 1000V dielectric test and can withstand working temperatures reaching 370°F (188°C). All mounting hole layouts and electrical connectors follow OEM design standards. Field technicians can complete full replacement with standard hand tools. No drilling, filing or custom spacer fabrication is required during installation. Multi-lip sealing barriers prevent dust and moisture from entering internal bearing and friction components. The optimized coil structure reduces thermal buildup caused by repeated PTO engagement cycles.
Each finished clutch is pre-calibrated at factory and undergoes multi-point performance inspection before packaging. This spare part fits individual machine repair jobs, local service center orders and bulk inventory replenishment for lawn equipment distributors across North America.
Vehicle Compatibility
Applications| Bobcat | Classic Pro |
| Bobcat | EC |
| Bobcat | ES |
| Bobcat | MID series |
| Woods | Mow 'n Machines |
Replacement Numbers
| Bobcat | 2721110 |
| Bunton | 2721110 |
| CaseIH | 2721110 |
| Craftsman | 2721110 |
| Ingersoll Rand | 2721110 |
| Jacobsen | 2721110 |
| Ransomes | 2721110 |
| Warner | 5219-13 |
| Warner | 5219-18 |
| Woods | 2721110 |
Products Advantages
Why Choose Our Electric PTO Clutch over Generic Replacements?
Our Solution:

Custom-built for Bobcat mid-commercial machines with fluctuating outdoor workloads
Bobcat Classic Pro, EC, ES and MID series zero-turn mowers run long daily shifts with variable cutting resistance. Our reinforced friction stack maintains steady clamping force over tens of thousands of power on/off cycles. Multi-layer sealing minimizes dirt and moisture penetration, offering repair shops a budget-friendly alternative compared to expensive genuine OEM parts for mixed rental fleets. All internal mechanical components keep stable performance despite frequent temperature swings and lawn-site contaminants.
Single SKU supports dual belt sizes and cross-brand part interchange
This single aftermarket SKU works for both 1/2" and 5/8" drive belts. Core physical specifications including 1" bore, 7.18" pulley and CCW rotation strictly match factory blueprints. No custom machining needed during on-site swap. Stocking this single SKU covers repair demands for multiple equipment brands, helping parts merchants reduce total SKU quantity and improve inventory turnover. Always validate original clutch marking and full machine model before purchase to avoid mismatches.


Reliable 125 ft-lbs torque output under dynamic grass-cutting resistance
Landscaping jobs bring constantly changing load conditions, especially when tackling tall, dense grass. The friction compound and high-temperature resistant coil reduce thermal stress from frequent activation. It maintains consistent blade rotation speed, absorbs mechanical shock at each engagement and protects deck spindles, drive belts and engine crankshaft from accelerated fatigue. Stable cutting performance is preserved through multi-hour continuous work shifts.
Flexible production & stock arrangement for seasonal lawn-care sales spikes
Flexible production & stock arrangement for seasonal lawn-care sales spikes Turf spare parts wholesalers and neighborhood repair shops always face sharp order surges in spring and summer. We organize batch manufacturing and maintain safety stock for this clutch model. Every finished unit passes functional validation before shipment. Our supply chain supports large seasonal bulk purchases and medium-sized urgent restock orders, helping sellers avoid stock-out risks during peak repair months.

Quality and Craftsmanship Details


Products Package

About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
Trusted Partnership Power
YOUR PROFESSIONAL ONE-STOP SOURCE
FOR 10000+ OUALITY PARTS
Verified Factory Excellence
BACKED BY 200+ TRUSTED FACTORY PARTNERS
Production process








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Expo experience

Customer Reviews

FAQ
Q: What information should I collect to confirm this clutch fits my mower?
A:This aftermarket replacement cross-references Bobcat 2721110, also compatible with Bunton, CaseIH, Craftsman, Ingersoll Rand, Jacobsen, Ransomes, Woods and Warner 5219‑18. Key technical indicators:1" shaft bore, CCW rotation,7.18" pulley supporting 1/2" or 5/8" belts, 125 ft-lbs torque, max engine RPM 3600, coil withstands 1000V dielectric test and temperature up to 370°F (188°C). Matching OEM number alone cannot guarantee fitment. Submit your complete machine model and original clutch marking to our technical team for fit evaluation before ordering.
Q:What harsh working conditions can this dual-belt clutch withstand?
A: This clutch is engineered for Bobcat zero-turn mowers used in rental yards and landscape contracting work. The compact cutting deck traps heat continuously, and clutch housing keeps getting hit by soil dust and grass scraps during daily field jobs. With high-temperature coil design, it can operate steadily under peak temperature 370°F (188°C), enduring repeated thermal cycles during long daily mowing sessions.
Q:What quality tests does each finished clutch go through before shipment?
A:Every single clutch passes a full set of quality checks: coil resistance and 1000V dielectric strength testing, static 125 ft-lbs torque retention measurement, repeated engage-disengage cycle testing, running noise inspection and full dimensional verification. Random batch samples run extended aging simulation that replicates the dusty, high-temperature working environment of real landscape projects.
Q: What routine maintenance practices can extend the service life of this clutch?
A: After finishing each mowing shift, use compressed air to blow grass clippings and dust off clutch housing and pulley grooves. Regularly inspect the wiring harness and plug connector for scratches, oil stains or loose terminals. Listen carefully for abnormal bearing noise when starting the engine. Avoid letting PTO run under continuous partial slip when cutting thick grass. These simple maintenance habits can greatly prolong the usable life of this rental-grade clutch.
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