Products Description
STL SR430 Carburetor with Gasket
Diaphragm Carburetor for Stihl SR430 & Compatible Models
Replacement carburetor assembly for Stihl SR430 backpack mistblowers and compatible BR-series blowers. Features a position-insensitive diaphragm carburetor with integrated fuel pump, designed for the 63.3cc 2-stroke engine . This complete replacement carburetor resolves starting difficulties, surging, and poor throttle response . The assembly includes necessary intake gaskets for a proper, leak-free seal on the spacer flange .
Technical Profiles & Materials
Diaphragm Carburetor Design – Position-insensitive carburetor with integrated fuel pump ensures reliable fuel delivery regardless of tool orientation during operation .
Complete Gasket Set – Includes the necessary gasket for sealing the carburetor to the spacer flange, preventing air leaks that cause poor idle and hard starting .
OEM Specification Replacement – Meets Stihl factory specifications (OEM refs: 4229 129 0901, 4244 120 0603, 4242 120 0606) for accurate fit and performance on compatible models .
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | Type | Diaphragm carburetor with integral fuel pump |
| 2 | OEM Part Numbers | 4229 129 0901, 4244 120 0603, 4242 120 0606 |
| 3 | Gasket OEM | 1125 129 0500 |
| 4 | Material | Aluminum, ABS, Iron |
| 5 | Weight | Approx. 128 g / 4.5 oz |
| 6 | Engine Compatibility | STIHL 63.3cc 2-stroke engine |
| 7 | Adjustment Screws | High-speed (H), Low-speed (L), Idle (LA) |
| 8 | Standard Setting | H screw 3/4 turn from stop; L screw 3/4 turn from stop |
Products Application
STIHL SR430 Mistblowers
Direct replacement carburetor for sprayer/mistblower applications. The diaphragm design ensures consistent fuel delivery during angled operation. Resolves starting and performance issues common in high-use equipment .
STIHL BR Series Backpack Blowers
Suitable for BR430 and BR450 blower models requiring carburetor replacement. Maintains proper fuel-air mixture for optimal airflow performance .
Professional Servicing & Rebuilds
Includes gaskets needed for carburetor reinstallation. When replacing, inspect the spacer flange (OEM 4244 120 2300) for damage, as even minor damage can cause running problems .
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 carburetor fits my STIHL SR430?
A:Check your model number on the machine label. This carburetor fits SR430, SR430-Z, SR440, SR450, SR450-Z, and compatible BR350/BR430/BR450 models . Verify OEM reference 4229 129 0901 or 4244 120 0603 on your existing unit.
Q: What is the correct adjustment procedure?
A: Standard setting: turn H screw counterclockwise as far as stop (no more than 3/4 turn), turn L screw clockwise as far as stop then back 3/4 turn. Adjust idle speed (LA) screw after warming up engine. Fine-tune for high altitude if needed .
Q: What gaskets are included?
A: The assembly includes the gasket that seals the carburetor to the spacer flange (OEM 1125 129 0500) . Always check the spacer flange condition, as damage here can cause running problems even with a new carburetor .
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