| Brand Name | SeaSummer | SKU | 0246-Hu-787366-02 |
| ID | 1.125" | Pulley | 6.3" |
| Rotation | CW | Belt | A/B Belt |
| Bolt Torque | 205 ft. lbs. | Maximum Engine RPM | 3,600 RPM |
| Voltage Insulation | 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 Big Dog Hustler - 787366KThis electric PTO clutch is a direct aftermarket replacement engineered to replace Big Dog and Hustler OEM part numbers 787366K and 787366, widely used in commercial zero-turn mower blade drive systems. It combines a high-torque electromagnetic coil with a wear-resistant friction assembly to deliver strong, consistent blade engagement under continuous commercial operation. Manufactured to original mounting dimensions and electrical ratings, it offers a true bolt-on fit with no modification, plus strict batch-level quality control and dependable supply for volume orders - OEM-grade performance at a competitive price.Vehicle Compatibility
Applications
| Big Dog Mowers | Too Many To List |
| Hustler/Excel | ATZ |
| Hustler/Excel | Hustler Z - XR-7 Deck |
| Hustler/Excel | Super Z - XR-7 Deck |
| Hustler/Excel | TrimStar 48" 927129 - Kawasaki 23 & 25hp |
| Hustler/Excel | TrimStar 54" 927137 - Kawasaki 23 & 25Hp |
| Hustler/Excel | X-One |
| Hustler/Excel | Z4 - All Models |
Replacement Numbers
| Big Dog | 787366 |
| Big Dog | 787366K |
| Hustler | 787366 |
| Hustler | 787366K |
| Xtreme | X0246 |
Products Advantages
Why Choose Our Electric PTO Clutch over Generic Replacements?
Our Solution:
Dealer OEM Parts Too Expensive
Buying genuine Big Dog / Hustler 787366 clutches at dealer prices can eat deep into repair margins, especially for landscapers and fleet operators servicing multiple zero-turn mowers every week. When every repair invoice carries a high-priced OEM clutch, profits shrink fast. This clutch delivers the same OEM-spec dimensional fit, electrical ratings and engagement performance at a fraction of the dealer price, so you can quote competitive repair prices, win more jobs and keep more profit on every single unit.
Aftermarket Parts That Don't Fit Right
Many low-cost aftermarket clutches are built to loose tolerances, forcing technicians to drill new mounting holes, add shims or improvise adapters just to get them installed - hours of extra labor, higher failure risk and customers who come back with warranty complaints. This clutch is machined to the exact 787366K / 787366 mounting dimensions, with every bolt hole, shaft bore and electrical connector aligned to original specifications. It bolts on in minutes with no modification, no adapters and no guesswork, so your technicians stay productive and your jobs stay on schedule.
Clutches That Slip or Overheat in Heavy Use
Cheap friction plates lose clamping force as temperatures climb, causing blade slippage, uneven cuts and premature belt wear - and when a clutch fails mid-season, you are looking at downtime, callbacks and an unhappy customer. Our heavy-duty electromagnetic coil and heat-resistant friction assembly are engineered to maintain consistent torque through high operating temperatures and thousands of engagement cycles. No fading, no slipping, no mid-season failures - just stable blade power that keeps mowers running through long, hot workdays.
Long Lead Times and Unstable Supply
Waiting weeks for an OEM clutch means machines sitting idle, rental revenue lost and repair promises broken - and dealers often back-order popular part numbers right at peak season. We maintain consistent production and dependable stock levels, supporting everything from single-unit emergency orders to large fleet and distributor programs. With batch-level QC on every shipment, you get reliable, quality-checked parts delivered when you need them - order after order, season after season.
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
Quality control
Expo experience
Customer Reviews
FAQ
Q: How do I select the correct electric PTO clutch for my specific mower model?
A:To guarantee a 100% exact fit, you need to verify four critical mechanical dimensions:1. Shaft Bore Size: Common sizes are 1" (25.4 mm) or 1-1/8" (28.6 mm).2. Pulley Outer Diameter (OD) & Belt Width: Matches your deck's V-belt size (e.g., 1/2" or 5/8").3. Rotation Direction: Clockwise (CW) or Counter-Clockwise (CCW) when viewing from the pulley end.4. OEM Cross-Reference: Compare with original numbers (Warner, Ogura, John Deere, etc.).If you provide us with your engine model or original part number, our engineering team will cross-check our database and provide a 3D fitment drawing for confirmation.
Q: What measures are taken to prevent the coil from burning out during heavy-duty operation?
A: Our electric PTO clutches are built with Class H insulated copper wire, rated for temperatures up to 180°C (356°F). Combined with dual-sealed C3 high-speed bearings and dynamic balance calibration, our design reduces friction-induced heat, significantly lowering the risk of thermal coil failure under prolonged high-load conditions.
Q: What is your quality inspection protocol before shipment?
A:Every single clutch (100% full inspection, not random sampling) passes through our 4-step automated testing rig before packaging:
1. Coil Resistance & Amperage Test: Verifies electrical integrity.2. Static Torque Capacity Test: Ensures proper torque engagement under load.3. Air Gap Precision Check: Factory preset to optimal clearance (0.012" - 0.020") for immediate response.4. Dynamic Balance & Noise Level Test: Ensures vibration-free operation.
Q: Do you offer custom OEM/ODM development for specialized lawn equipment manufacturers?
A: Yes. We regularly partner with OEM machine builders and private-label brand owners. Our customization capabilities include:Custom Wiring Harnesses: Wire gauge, sleeve protection (corrugated/braided), and waterproof connector types (Deutsch, Molex, Amphenol).Custom Pulley Configurations: Single/double groove, specific ODs, and anti-corrosion plating.Branding & Packaging: Laser-etched logos/part numbers on the steel body, custom color box packaging, and barcoded master cartons.
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