| Brand Name | SeaSummer | SKU | 0003-Gr-0017 |
| ID | 1" | Pulley | 5.345" |
| Rotation | CCW | Belt | 1/2" or 5/8" Belt |
| Bolt Torque | 80 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

PTO Clutch Gravely ZT Series
Vehicle Compatibility
Applications| Ariens | EZR Series |
| Ariens | LT and YT Series |
| Ariens | Mini Zoom Series |
| Ariens | Sierra Series |
| Ariens | Sport Zoom Series |
| Ariens | Zoom Series |
| Cub Cadet | 1300, 13A-130F100 |
| Cub Cadet | 1405, 13A-145F100 |
| Cub Cadet | Plus Many More! |
| Dixon | Too Many To List |
| Exmark | Quest 42" Deck sn 790,000 and up |
| Gravely | 1440 Series |
| Gravely | GLT 440 |
| Gravely | GLT 448 |
| Gravely | Mini ZT Series |
Replacement Numbers
| Ariens | 03643100 |
| AXXOM | 892595 |
| AYP | 53740 |
| AYP | 160889 |
| AYP | 532160889 |
| Bolens | 1772388 |
| Bolens | 717-1459 |
| Bolens | 917-1459 |
| Bolens | GW-1772388 |
| Craftsman | 53740 |
| Craftsman | 160889 |
| Craftsman | 1772388 |
| Craftsman | 03643100 |
| Craftsman | 7053740 |
| Craftsman | 532160889 |
Products Advantages
Why Choose Our Electric PTO Clutch over Generic Replacements?
Our Solution:

Entry-Level Doesn't Mean Second-Class Parts
The ZT may be an entry point into Gravely's commercial range, but the machines still work for a living - and they deserve a clutch that works as hard as they do. Our replacement matches the original's engagement and durability standard at an aftermarket price, so owners of any ZT model keep their repair costs in line with the value the machine actually produces.
The Whole ZT Range, One Fitment Answer
When a single series spans multiple models and years, fitment questions multiply - deck sizes, wiring revisions, bracket changes. This clutch is manufactured against the ZT series reference dimensions and verified across its critical surfaces, so the answer to "will it fit my ZT?" is a single, confident yes - and the exchange runs exactly per the manual, with the first attempt completing the job.


Where ZTs Work, the Clutch Works Hardest
ZT machines earn their keep on real properties - heat, dust, long hours - and the clutch absorbs every one of those conditions at the very start of the drive chain. Our coil and friction assembly are built to hold engagement firm through rising temperatures and repeated cycles, keeping blade speed stable and protecting belts and spindles from the shock loads that shorten their lives.
Parts Flow Should Match Work Flow
A commercial operator's schedule is set by the work, not by the parts supply - and supply that stumbles creates downtime that no schedule can absorb. We keep the ZT clutch in working stock through the season with steady production behind it, covering urgent singles and planned multi-unit programs on timelines you can commit to, with functional testing completed on every batch before it ships.

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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