MOTOALL Carburetor C3-El43C replacement for Husqvarna K750 K760 K770 - extra inlet, direct-fit

This aftermarket carburetor is built to match the form and mounting of the original equipment (OE) units used on several Husqvarna saw models. It replaces OE part numbers 510181202, 578243401 and 578243401-01 and is intended for users who need a ready-to-install carburetor to get their saws back to consistent operation. Note that this version includes an extra fuel inlet intended for the K750; that inlet must be blocked when installing on K750 models and requires no modification for K760 use.

Will this carburetor fit my Husqvarna K750 or K760?

Yes — this MOTOALL C3-El43C is designed to fit Husqvarna 510-series saws including K750, K760 and K770 where the original carburetor matches listed OE numbers. Installation is straightforward when the mounting points and intake match your saw’s manifold.

• Compatible with Husqvarna 510 K750, K760, K770 models
• Replaces OE# 510181202, 578243401, 578243401-01
• Works on K760 without modification
• K750 requires extra fuel inlet to be blocked off during install

How do I install the MOTOALL C3-El43C carburetor?

Installation follows standard carburetor replacement steps: remove the air filter and original carburetor, transfer linkages and gaskets if needed, and mount the new unit securely. Blocking the extra fuel inlet is a simple step when fitting the carburetor to a K750 to match the original fuel routing.

• Remove airbox and disconnect fuel lines before starting
• Transfer throttle linkage and gaskets from old carburetor if required
• Secure carburetor to intake manifold and reconnect fuel and throttle
• Block the extra fuel inlet only for K750 models per instructions

What replacements and model years does this part cover?

This aftermarket carburetor is listed as a replacement for several Husqvarna cut-off saw variants produced around 2009–2012, making it suitable for common service and repair needs. Check your saw’s OE part number to confirm compatibility before ordering.

• Replacement for Zama C3-EL53 with extra inlet variant
• Fits K 760 Cut-n-Break and K 760 Cut-Off Saw models (2009–2012)
• Compatible with K 760 Rescue Saw (2009–2012)
• Verify against original OE numbers before purchase

What should I expect in terms of parts and preparation?

The package typically includes the carburetor only; seals, gaskets or mounting hardware may need to be reused or replaced depending on condition. Prepare basic hand tools, a gasket set, and fuel-line clamps to complete installation cleanly.

• Carburetor supplied; inspect gaskets and linkages on the saw
• Have replacement gaskets and fuel clamps available if original parts are worn
• Use basic hand tools and follow safety precautions for fuel handling
• Confirm which fuel inlet to block when installing on K750

Who is this for: The MOTOALL Carburetor C3-El43C is intended for technicians, professional contractors and owners of Husqvarna K750, K760 or K770 saws who need a reliable aftermarket replacement that matches common OE part numbers. It's well suited for field service, equipment repair shops and DIY mechanics familiar with small-engine carburetor replacement and basic tune-up procedures.