Products Description
Lawn Mower TD18 / 40-052B Primer Bulb – Direct Replacement Part
Essential Fuel Priming Component for Kawasaki TD18 & Compatible Engines
This primer bulb is a direct replacement for the fuel priming system on Kawasaki TD18, TD24, TG33, and compatible small engines, commonly found in lawn mowers, trimmers, and other outdoor power equipment . The primer bulb is an essential starting component that, when pressed, creates suction within the fuel line to draw fuel from the tank into the carburetor, making the engine easier to start . Replaces OEM part number 49043-2065 and is confirmed compatible with Kawasaki models including TD18, TD24, and TG33 . Over time, the rubber bulb can harden, crack, or lose elasticity due to constant fuel exposure and temperature changes, leading to hard starting, fuel leaks, or the engine failing to start . This direct replacement restores proper fuel priming and reliable starting performance.
Technical Profiles & Materials
Direct OEM Replacement Fitment – Replaces Kawasaki OEM part number 49043-2065. Confirmed compatible with Kawasaki TD18, TD24, and TG33 trimmers and brushcutters . Also compatible with 40-052B and other equipment using this primer bulb specification.
Essential Starting Component – The primer bulb draws fuel from the tank into the carburetor when pressed, creating the fuel charge needed for the engine to start . Without a functioning primer bulb, the engine may require excessive pull-start attempts or fail to start entirely.
Fuel-Resistant Rubber Construction – Manufactured from durable rubber designed to withstand exposure to gasoline and ethanol-blended fuels. Over time, the rubber can become brittle and cracked, requiring replacement .
Easy Installation – Simple replacement process typically requiring a flathead screwdriver and needle-nose pliers. Remove the retainer ring, pry out the old bulb, insert the new bulb with retainer, and press into place until it clicks .
Common Failure Symptoms – A faulty primer bulb may exhibit cracks, loss of elasticity, fuel leaks, or failure to spring back after pressing . Replacing the bulb resolves hard starting and fuel leak issues without the need for major engine repairs.
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | OEM Part No. | 49043-2065 |
| 2 | Compatible Models | Kawasaki TD18, TD24, TG33 |
| 3 | Function | Fuel priming / Carburetor priming |
| 4 | Material | Fuel-resistant rubber |
| 5 | Common Symptoms | Hard starting, fuel leaks, cracked bulb |
| 6 | Installation Tools | Flathead screwdriver, needle-nose pliers |
| 7 | Replacement Trigger | Cracks, loss of elasticity, fuel leakage |
| 8 | Unit of Sale | 1 piece |
Products Application
Kawasaki TD18 & TD24 Engine Starting Restoration
Direct replacement when the engine becomes hard to start or fails to start due to a cracked or deteriorated primer bulb. The primer bulb creates the vacuum needed to draw fuel into the carburetor, and a faulty bulb prevents proper fuel priming . This replacement restores reliable starting performance on Kawasaki TD18, TD24, and TG33 powered equipment.
Lawn Mower & Trimmer Fuel System Repair
For outdoor power equipment with fuel delivery issues, the primer bulb is a common wear item that requires replacement. Symptoms include fuel leakage from the bulb area or the bulb failing to spring back after pressing . This direct replacement resolves these issues quickly and affordably.
Workshop & Preventative Maintenance
For repair centres and equipment owners, primer bulbs are standard replacement components during fuel system servicing. Regular inspection and replacement of cracked or hardened bulbs prevents starting issues and fuel leaks. The simple installation process allows for quick repairs with basic hand tools .
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: How do I confirm this primer bulb fits my TD18 engine?
A:Check your equipment model number on the identification plate. This primer bulb fits Kawasaki TD18, TD24, and TG33 models. It replaces OEM part number 49043-2065 . For 40-052B applications, verify compatibility with your specific equipment model.
Q: What are the symptoms that indicate the primer bulb needs replacing?
A: Common symptoms include the engine being hard to start, fuel leaking from the bulb area, the bulb feeling hard or cracked, or the bulb failing to spring back after being pressed . A cracked bulb allows air to enter the fuel system, preventing proper priming.
Q: How do I install a new primer bulb?
A: Remove the retainer ring cover, push in the tabs on the retainer ring to release it, and pry out the old bulb with a flathead screwdriver and needle-nose pliers. Place the new retainer ring around the new bulb, push the assembly into the primer cavity, and press until the tabs click into place .
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