Stens Carburetor Replaces 1128 120 0622, 1128 120 0625 Stihl MS440 MS460 044

Stens Carburetor Replaces 1128 120 0622, 1128 120 0625 Stihl MS440 MS460 044.

Restore Maximum Engine RPMs & Instant Throttle Response: Premium Chainsaw Carb

Eliminate frustrating engine bogging under load, persistent idle stall-outs, and lean fuel starvation on your heavy-duty logging saw. This Heavy-Duty Aftermarket Replacement Carburetor is an engineered fuel system replacement package designed explicitly for Stihl 044, 046, MS440, and MS460 professional timber chainsaws . Operating a high-output timber saw with a degraded or varnish-clogged carburetor starves the cylinder of proper fuel lubrication, risking severe piston scoring, overheating, and sudden mid-cut stalling.

Instead of spending hours rebuilding old internal metering diaphragms or dealing with worn-out adjustment needle seats, installing this complete replacement carburetor provides a fresh, clean fuel-air mixing chamber right out of the box. Precision-cast from durable zinc-aluminum alloy with fuel-resistant rubber metering diaphragms and pre-set jetting specs, this unit restores fast cold starting, smooth acceleration, and consistent high-RPM power output under heavy bar load.

This complete aftermarket replacement assembly directly replaces Stihl OEM Part Numbers 1128 120 0625 and 1128 120 0622 .

Why This Replacement Chainsaw Carburetor is the Smart Choice:

Precision Fuel-Air Atomization: Delivers optimal fuel-air metering to maximize engine torque and clean combustion through heavy hardwood timber bucking.

Ethanol-Resistant Internal Diaphragms: Built with high-grade synthetic metering diaphragms designed to resist hardening, cracking, and degradation caused by E10 gas blends.

Fully Adjustable High/Low Needles: Features accessible High (H), Low (L), and Idle (LA) adjustment screws to allow fine-tuning for your local elevation and weather conditions.

Direct Bolt-On OEM Fitment: Matches factory intake manifold mounting stud spacing, impulse hose ports, and choke/throttle linkage connections for a seamless drop-in install.

Technical Specifications:

Component Type: Engine Fuel Carburetor Assembly

Body Material: Die-Cast Zinc/Aluminum Alloy

Replaces OEM Part Numbers: Stihl 1128 120 0625 (11281200625) & 1128 120 0622 (11281200622)

Adjustment Controls: Fully Adjustable High (H), Low (L), and Idle (LA) Needle Valves

Condition: Brand New

Guaranteed Equipment Model Compatibility Matrix:

Specifically dimensioned to fit the fuel intake manifolds of the following Stihl professional gas chainsaw platforms:

Stihl Professional Series Chainsaws: Fits Stihl 044 , Stihl 046 , Stihl MS440 , and Stihl MS460 timber chainsaws.

🛠️ Pro-Maintenance Tip: Watch the "Tachometer Tuning & Impulse Hose Secret!" Shop Service Secret: When installing your new carburetor ( 1128 120 0625 replacement ), always inspect the rubber impulse hose and intake boot behind the carb box for cracks or leaks. A cracked impulse hose will fail to pulse the carb's internal fuel pump! Tuning Secret: After bolting on the new carb, start the saw and allow it to warm up for 2 minutes. Use a digital small engine tachometer to fine-tune the High (H) needle to your saw's maximum factory WOT (Wide Open Throttle) RPM spec (typically around 13,500 RPM on MS440/MS460 saws)—never run a saw too lean at high RPMs, as fuel carries the oil that lubricates your cylinder!

Condition Details

This is a Brand New Aftermarket Replacement Component . It arrives clean, unmounted, and factory-tested in protective packaging, ready to restore peak engine cutting power.

Specifications

• Warranty: 1 Year
• Manufacturer Part Number: 616-212
• Model: MS440
• Country/Region of Manufacture: China
• Country of Origin: China
• California Prop 65 Warning: California Proposition 65 Warning: Cancer and Reproductive Harm

Condition: New