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SKU:
NLT1Q00770
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Carburetor Kit for STIHL MS251 and MS251 C Chainsaws – Replaces Zama C1Q-S233
$37.99
In Stock
$37.99
Sale price
$37.99
Regular price
New aftermarket carburetor kit for STIHL MS251 and MS251 C chainsaws using the Zama C1Q-S233 carburetor configuration.
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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
- STIHL MS251 chainsaw
- STIHL MS251 C chainsaw
Product Overview
When an MS251 is difficult to cold-start, will not transition cleanly off idle, or loses power in the cut after fresh fuel and line checks, the carburetor may no longer meter consistently. This kit is aimed at a confirmed carburetor fault, not ignition, compression, or crankcase-leak problems.
Compare the choke linkage, throttle arm, fuel connections, and C1Q-S233 identification with the original unit. Correct fuel mixture and air-leak testing remain important after installation.
Key Features & Performance
- Application-specific carburetor for MS251-family saws
- Matches the Zama C1Q-S233 configuration
- Restores fuel delivery through starting, idle, and cutting load
- Useful when cleaning cannot recover a corroded or worn carburetor
Replaces Part Numbers
- C1Q-S233
Common Uses
- Repairing a saw that starts but dies when accelerated
- Replacing a carburetor damaged by stale mixed fuel
- Correcting fuel leakage traced to the carburetor body
Technical Specifications
- Product Type: Chainsaw carburetor kit
- Carburetor Reference: Zama C1Q-S233
- Equipment: STIHL MS251 series
- Condition: New
- Replacement Type: Aftermarket
Installation & Fitment
- Pressure-check fuel lines and inspect the intake boot before fitting the new carburetor
- Transfer linkages without bending the throttle or choke arms
- Fill with fresh correctly mixed two-cycle fuel
- Verify idle, chain-stop operation, and high-speed mixture using the service procedure
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Production date, engine type, transmission, trim, serial number, and previous repairs can change fitment. Compare the original part, mounting points, dimensions, connections, and listed reference numbers before purchase.
Frequently Asked Questions
Q: Will this fit both MS251 and MS251 C? A: It is listed for both when the original carburetor matches the C1Q-S233 layout.
Q: Can a clogged fuel filter mimic a bad carburetor? A: Yes. Check the filter, tank vent, fuel line, impulse path, spark, and compression first.
Q: Why does the saw die when I pull the throttle? A: A lean fuel circuit, air leak, blocked filter, or carburetor problem can cause that symptom.
Q: Is this made by STIHL or Zama? A: No. It is an aftermarket replacement identified by the compatible models and carburetor reference.
Part Summary
keywords: STIHL MS251 carburetor replacement, MS251 C carburetor kit, Zama C1Q-S233 replacement, MS251 chainsaw fuel repair, aftermarket STIHL carburetor
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.