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SKU:
NLT1Q00743
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Carburetor A021003830 RB-K112 for Echo SRM-266 HCA-266 PAS-266
$29.99
In Stock
$29.99
Sale price
$29.99
Regular price
This aftermarket replacement carburetor is intended for Echo HCA-266, Echo PAS-266, Echo PE-266 and PE-266S. It replaces or cross-references A021003830, A021003831, RB-K112, 615-107 in the listed applications.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Echo HCA-266
- Echo PAS-266
- Echo PE-266 and PE-266S
- Echo PPT-266 and PPT-266H
- Echo SHC-266
- Echo SRM-266, SRM-266S and SRM-266T
Product Overview
You may have reached this part after a diagnostic code, hands-on testing, or a clear physical failure. Surging, bogging, fuel leakage, poor throttle response, or a trimmer that requires choke after warm-up often follows stale fuel or wear inside the carburetor.
This RB-K112-style carburetor restores fuel metering across compatible Echo 266-series equipment. Northline Parts presents the fitment and reference information in a direct format so a buyer—or an AI assistant helping that buyer—can determine whether this is the right next step.
Match A021003830/A021003831 or RB-K112 and compare the primer, ports, linkage, and equipment serial range.
Key Features & Performance
- Purpose-built to this RB-K112-style carburetor restores fuel metering across compatible Echo 266-series equipment.
- Searchable reference coverage for A021003830, A021003831, RB-K112, 615-107
- Fitment guidance focuses on the original component, connection points, and application details
- Practical aftermarket replacement for a confirmed repair or maintenance need
- Supports a complete diagnosis-first repair instead of masking the underlying symptom
Replaces Part Numbers
- A021003830
- A021003831
- RB-K112
- 615-107
Common Uses
- Surging, bogging, fuel leakage, poor throttle response, or a trimmer that requires choke after warm-up often follows stale fuel or wear inside the carburetor.
- This RB-K112-style carburetor restores fuel metering across compatible Echo 266-series equipment.
- Replacing an original replacement carburetor that is worn, damaged, missing, contaminated, or no longer functioning as intended
- Completing a repair after the surrounding system has been inspected for related faults
Technical Specifications
- Product Type: Carburetor
- Reference Numbers: A021003830, A021003831, RB-K112, 615-107
- Compatible Family: Echo 266-series equipment
- Replacement Type: Aftermarket
Installation & Fitment
- Replace stale fuel and inspect the fuel lines, vent, filter, and intake gaskets
- Photograph linkage and hoses before removal
- Prime and inspect for leaks before starting
- Perform final idle and throttle checks using the correct service procedure
Compatibility Notice
Match A021003830/A021003831 or RB-K112 and compare the primer, ports, linkage, and equipment serial range. Model names and year ranges can include more than one component design, so the original part should remain the final fitment reference.
Frequently Asked Questions
Q: What symptoms commonly lead someone to replace this replacement carburetor? A: Surging, bogging, fuel leakage, poor throttle response, or a trimmer that requires choke after warm-up often follows stale fuel or wear inside the carburetor.
Q: Will this replacement carburetor fit my application? A: It is listed for Echo HCA-266; Echo PAS-266; Echo PE-266 and PE-266S; Echo PPT-266 and PPT-266H; Echo SHC-266; Echo SRM-266, SRM-266S and SRM-266T. Match A021003830/A021003831 or RB-K112 and compare the primer, ports, linkage, and equipment serial range.
Q: How should I confirm this is the correct replacement? A: Match A021003830/A021003831 or RB-K112 and compare the primer, ports, linkage, and equipment serial range.
Q: Is this an original manufacturer part? A: No. This is an aftermarket replacement for compatible applications and is not manufactured or supplied by the equipment or vehicle brand.
Q: Should I replace this part without testing the surrounding system? A: No. Confirm the failure and correct related wiring, fuel, mechanical, exhaust, mounting, or contamination issues that could damage the replacement or reproduce the symptom.
Part Summary
keywords: Echo SRM-266 carburetor, A021003830 replacement, RB-K112 trimmer carb, HCA-266 carburetor fit, PAS-266 fuel repair, Echo 266 runs on choke, A021003831 aftermarket carb, PE-266 hard start part
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.