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Description
98-189-7 – Metering Spring (Genuine Walbro OEM Carburetor Spring)
The Walbro 98-189-7 Metering Spring is a genuine OEM replacement carburetor component designed to provide accurate fuel metering in compatible Walbro diaphragm carburetors used on a wide range of outdoor power equipment. Engineered to Walbro's precise factory specifications, this metering spring works with the metering lever and needle valve to regulate fuel flow into the carburetor, ensuring consistent engine performance, smooth throttle response, and reliable starting.
Manufactured from high-quality spring steel, the 98-189-7 Metering Spring is designed to maintain its calibrated tension under continuous operation, helping preserve proper fuel delivery and long-term carburetor performance.
Product Details
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Part Number: 98-189-7
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Brand: Walbro
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Part Type: Metering Spring
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Function: Controls fuel metering pressure within the carburetor
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Material: Precision Heat-Treated Spring Steel
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Installation: Direct OEM Replacement
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Genuine Walbro OEM Part
Key Features
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Genuine Walbro OEM metering spring
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Precision-calibrated spring tension
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Ensures accurate fuel metering
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Supports reliable engine starting and smooth operation
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High-quality spring steel construction
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Resistant to fatigue and corrosion
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Direct replacement with no modifications required
Function
The 98-189-7 Metering Spring applies calibrated pressure to the carburetor metering lever, allowing the needle valve to regulate fuel entering the metering chamber. Proper spring tension is critical for maintaining the correct air-fuel mixture, improving throttle response, fuel efficiency, and overall engine reliability.
Compatible Equipment
The Walbro 98-189-7 Metering Spring is used in selected Walbro diaphragm carburetors found on a variety of outdoor power equipment, including:
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Chainsaws
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String trimmers
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Brushcutters
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Leaf blowers
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Hedge trimmers
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Pole saws
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Cut-off saws
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Generators
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Other small engines equipped with compatible Walbro carburetors
Common equipment brands include:
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STIHL
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Husqvarna
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Echo
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RedMax
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Shindaiwa
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Jonsered
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Poulan Pro
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McCulloch
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Dolmar
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Makita
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Other equipment utilizing compatible Walbro carburetors
Always verify your carburetor model and original part number before ordering to ensure proper compatibility.
Who Is This For?
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Homeowners
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Professional landscapers
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Arborists
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Small engine repair technicians
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Outdoor power equipment service centers
Recommended Property Size
Ideal for equipment used on:
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Residential properties
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Large estates
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Commercial landscaping
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Forestry operations
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Farms and ranches
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Municipal maintenance
Pros
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Genuine Walbro OEM quality
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Precision-calibrated spring tension
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Maintains accurate fuel metering
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High-quality spring steel construction
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Corrosion and fatigue resistant
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Easy installation during carburetor rebuilds
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Long service life
Cons
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Fits only compatible Walbro carburetors
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Best replaced during a complete carburetor overhaul for optimal performance
Comparison – Walbro 98-189-7 OEM Metering Spring vs Aftermarket Springs
Walbro 98-189-7 Genuine OEM Metering Spring
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Exact OEM calibration
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Factory-specified spring tension
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Reliable fuel metering
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Superior durability
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Designed specifically for Walbro carburetors
Aftermarket Metering Springs
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May vary in spring tension
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Variable material quality
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Potential fuel mixture inconsistencies
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Reduced long-term reliability
Why Buy from Barry's Power Equipment?
Barry's Power Equipment supplies genuine Walbro OEM carburetor components trusted by homeowners, professional landscapers, and small engine repair technicians.
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Genuine OEM Walbro replacement parts
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Fast nationwide shipping
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Competitive pricing
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Expert technical support
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Extensive inventory for Walbro, STIHL, Husqvarna, Echo, RedMax, Shindaiwa, Scag, Ariens, Gravely, Briggs & Stratton, Kawasaki, Kohler, Honda, Toro, Exmark, Ferris, John Deere, and many other leading outdoor power equipment brands.
