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Butom
C1M-EL37B Carburetor for Husqvarna 445 / 450

Saws · Carburetors

Butom C1M-EL37B Carburetor for Husqvarna 445 / 450

4.5 out of 5 · 217 reviews

Carb kit for Husqvarna 445 and 450 saws, Jonsered and McCulloch twins.

$18.99at last check, Sep 27, 2026

Fits

  • Husqvarna 445
  • 445E
  • 450
  • 450E
  • Jonsered CS2245
  • McCulloch CS450
  • Craftsman 358382000

Replaces

  • C1M-EL37B
  • 506450401

About this part

Husqvarna's 445 and 450 are popular mid-size saws, and they share their C1M-EL37B carburetor with the Jonsered CS2245 and CS2250 and the McCulloch CS450. This kit swaps it out and freshens the parts around it.

The mount holes are 31 mm apart with a 13.9 mm throttle bore. It also fits the Craftsman 358382000.

  • Replaces C1M-EL37B and 506450401
  • Fits Husqvarna 445, 450 and their II versions
  • Also Jonsered CS2245/CS2250 and McCulloch CS450
  • 31 mm mount, 13.9 mm throttle
In the box
  • Carburetor
  • Tune-up parts
Specs
Mount holes31 mm
Throttle13.9 mm
Choke19 mm
Venturi11 mm
Before you order

Compare the stamp on your old part with the “Replaces” list, and your engine code with “Fits”. If it still isn't clear, send a photo to the counter and we'll check it for you.

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