Products Description
TD40 Brush Cutter Engine - Complete 2-Stroke Gasoline Power Unit for TD40-Series Brush Cutters & Grass Trimmers
High-Output 40cc 2-Stroke Engine Assembly with Integrated Fuel Tank, Recoil Starter & Air Filter - OEM Replacement for TD40 Brush Cutter Platforms
TD40 Brush cutter engine
The TD40 Brush Cutter Engine is a complete 2-stroke gasoline power unit engineered as a direct OEM-compatible replacement engine assembly for TD40-series brush cutters, grass trimmers, and multi-attachment power tools. The unit is supplied as a fully integrated assembly comprising the engine block with finned aluminium cylinder, electronic ignition module, recoil pull-starter, white polypropylene fuel tank with primer bulb, black air filter housing with filter element, orange-bracketed exhaust port, and all associated wiring and fuel line connections - enabling a complete engine swap without sourcing individual sub-components. Displacing approximately 40cc from a single-cylinder 2-stroke architecture, the TD40 engine delivers the power-to-weight ratio and sustained high-RPM torque output required for heavy-duty brush cutting through dense grass, thick weeds, brambles, and light scrub vegetation. The air-cooled aluminium cylinder with integral cooling fins manages thermal load during sustained full-throttle operation, preventing the overheating that causes piston seizure in lower-specification engine units. Designed for straightforward integration with standard TD40-series brush cutter shaft and gearbox assemblies, this engine replacement unit reduces repair costs compared to full machine replacement and returns brush cutters to full operational specification quickly
Technical Profiles & Materials
Case-Hardened Steel Wrist Pin：
1. Air-Cooled Aluminium Alloy Cylinder with Integral Cooling Fins The engine cylinder is cast from aluminium alloy with deeply ribbed external cooling fins that maximise heat dissipation from the combustion chamber to ambient air during continuous high-RPM operation. Effective air cooling is the primary thermal management mechanism in 2-stroke brush cutter engines and directly determines the engine's ability to sustain full-throttle output without piston seizure. The aluminium alloy construction achieves the thermal conductivity required for efficient heat rejection while keeping engine assembly weight low - a critical factor in a hand-held tool where power unit weight directly affects operator fatigue over a working day.
2. Electronic Ignition Module with Flywheel Magneto System The black ignition module mounted on the engine crankcase works in conjunction with the flywheel magneto to generate and time the ignition spark precisely relative to piston position across the engine's full RPM range. Electronic ignition eliminates the contact-point wear and ignition timing drift that degraded older breaker-point systems, delivering consistent spark energy and timing accuracy from cold start through sustained full-throttle operation. The sealed module design resists moisture and vibration damage in outdoor field conditions.
3. Integrated Fuel System - Primer Bulb, Fuel Tank & Transparent Fuel Line The white polypropylene fuel tank is integrated directly into the engine assembly with a manual primer bulb that pre-fills the carburetor for reliable cold starts without repeated starter cord pulls. The transparent fuel line allows operators to visually confirm fuel flow before starting, identifying blockages or air locks immediately. The primer-assisted fuel system is particularly valuable in agricultural field conditions where engines are frequently started cold after storage or fuel depletion, and where slow or failed starts cost productive working time.
Technical Specifications
| ITEM | DETAILS |
| Type | Complete 2-stroke air-cooled gasoline engine assembly - OEM replacement power unit |
| Application | Compatible with TD40-series brush cutters, grass trimmers, and multi-attachment power tools; suitable for agricultural grass management, orchard vegetation control, roadside clearing, and landscaping operations |
| Code | 0601054 |
| Material | Aluminium alloy cylinder block and cooling fins; polypropylene fuel tank and air filter housing; ABS ignition module casing; steel crankshaft and conrod assembly; orange aluminium exhaust port bracket |
| Details explanation | BDisplacement: ~40cc; single-cylinder 2-stroke air-cooled; integrated recoil pull-starter; electronic ignition with flywheel magneto; primer bulb cold-start system; complete assembly includes engine block, fuel tank, air filter, ignition module, recoil starter, exhaust bracket, and all fuel and ignition wiring harness |
| Brand Name | SeaSummer |
| Operating Temp | Air-cooled aluminium cylinder rated for continuous operation up to 200°C (392°F) cylinder head temperature; integral cooling fins maintain safe thermal range at full throttle under standard ambient conditions of -10°C to +45°C (14°F to +113°F) |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application
Agricultural Grass & Weed Management
Farmers and agricultural operators across grassland, paddy field borders, and plantation environments rely on TD40-powered brush cutters for daily vegetation management. When the original engine fails due to piston wear, crankshaft seal failure, or ignition system degradation, replacing the complete engine assembly restores the brush cutter to full operational capacity at a fraction of the cost of a new machine - enabling agricultural operators to maintain their vegetation management schedules without capital expenditure on replacement equipment.
Orchard & Plantation Inter-Row Vegetation Control
Fruit orchards, tea gardens, rubber plantations, and oil palm estates require regular inter-row grass and weed control to prevent competition for soil nutrients and reduce pest harborage. The TD40 engine's sustained high-RPM output and air-cooled thermal management system enable full-shift operation in the high-ambient-temperature conditions typical of tropical plantation environments, while the primer bulb starting system ensures reliable engine starts at the beginning of each working day without warm-up delays that reduce productive cutting time.
Brush Cutter Repair Workshops & OEM Equipment Assembly
For brush cutter repair workshops, the TD40 complete engine assembly is a high-value repair solution that enables total engine replacement in a single service operation - eliminating the diagnostic complexity of isolating individual failed engine sub-components. For OEM brush cutter assemblers and equipment manufacturers building TD40-specification machines, the complete engine unit simplifies production assembly by delivering a pre-tested, fully integrated power unit that requires only shaft connection and throttle cable routing to complete machine assembly.
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.
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FAQ
Q: Are you an impartial industrial components dealer or a direct China water pump factors factory?
A:We are a direct, ISO9001-certified engineering water pump components manufacturing facility and precision fluid-control factor manufacture exporter primarily based in China. We function our personal cleanroom injection molding bays, computerized ultrasonic welding arrays, computerized hydraulic stress check stations, and clean-room packaging lines, passing direct-factory wholesale price financial savings straight to your element procurement margins.
Q: Can your manufacturing unit furnish full certification forms for food-contact or consuming water compliance?
A: Yes, absolutely. For food, beverage, or scientific applications, our manufacturing unit makes use of one hundred percent virgin, un-recycled polypropylene resins accompanied by means of fabric traceability certificates. We mechanically furnish B2B purchasers with complete FDA compliance documentation, NSF-grade compound declarations, and RoHS/REACH chemical protection screening sheets to make certain clean clearance thru worldwide customs.
Q: Do you provide customization picks for distinctly corrosive fluids like sturdy acids or ozone?
A: Yes, we are a thoroughly succesful OEM/ODM supplier. For aggressive chemical or ozone environments, we can improve the 12x26.5mm valve configuration in our factory: substituting the general PP housing with top class PVDF (Fluoropolymer) and changing any steel springs with Hastelloy or whole springless gravity-ball architecture, making sure final chemical resistance.
Q: How do we impervious a pattern batch to execute computerized lifecycle and burst-pressure testing?
A: We relatively inspire complete laboratory contrast earlier than logging mass grant agreements. We can ship a pattern lot of 5-10 gadgets of our inventory 12x26.5mm take a look at valves for assessment (setup costs and DHL/FedEx air freight apply). Once the factors pass by your inner lifecycle verification and a formal wholesale quantity manufacturing contract or container run is locked in, the sampling charges are a hundred percent credited returned to your industrial balance.
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