Husqvarna 545115301 Leaf Blower Engine Cylinder Genuine Original Equipment Manufacturer (OEM) Part

I had to replace the cylinder and piston on my Craftsman 25cc, 210 mph/450cfm blower (model 358.794650). This cylinder worked perfect, it was exactly what came off. As others have noted the intake and exhaust bolt holes are not threaded. I tapped mine with M6-1.0 and M5-0.8 and used new metric allen head bolts, same length of the ones that came out.

The aluminum cylinder took over a week to arrive, which is unusual for Amazon. (the reason for 4 star) It was exactly the right part to fix Poulan Pro bvm200vs. The leaf blower also had a hole in the piston, which I also replaced. A glitch in the repair is that the cylinder required the tapping of four holes. Two for the mounting of the muffler (metric M6-1.0) and two for the mounting of the carburator (metric M5-0.8). I did not have to use a tap drill as the holes were already close enough to 5mm for the exhaust and 4.2mm for the carb side. I took my time. I did have to chase the tapped holes for the carb with the original bolts as the bolts did not fit quite smoothly. The sizes were correct, but the bolts needed coaxing to fit. No such problem with the exhaust bolts fitting. I used ordinary 2 cycle oil to coat both cylinder wall, and piston skirt, and connecting rod pin bearings. It all worked out for me. Good luck on yours.

Just needed to tap four bolt holes working great

The media could not be loaded. I’ve ordered this part too time and both time I was sent a part That I could not use. Part number 545115301 cylinder head were the carburetor and the Exhaust mount at. the hold’s where not tap so I can use the both To mount the exhaust and the carburetor

fit perfect for my craftsman blower

It is a new cylinder head but unless you're an expert DIYer you may not be happy. The holes used to attach the exhaust parts and the plastic intake manifold are not taped. The bolts on my unit were not self tapping so I had to tap the holes. To make it more difficult the bolts are metric and to make matters worse the metric taps I have are of Japanese manufacture. And the bolts are probably Chinese or European. (Husquvrna) The difference is rounded thread crests on the taps versus pointed thread crests on the bolts. On the intke side the existing bolts could be used with a bit on oil and TLC but not on the exhaust side. Luckily I had some spare metric Allen cap screws that fit. Add this to a new piston ring and piston cleanup and the blower is running.

Good product, quality production, with one little side note. Just be aware that the holes along side of the intake and exhaust ports are NOT threaded and must be tapped with a hole tap. This turned out to be easy as the aluminum in the cylinder is much softer than the steel in the taps are. The exhaust is different thread pitch than the intake port side holes are. I just used some two-stroke oil and tapped all four bolt holes, very easy if you have the correct tap sizes. Don't remember the exact tap sizes, you must use a thread pitch gauge to read the two sets of bolts to get them. They are both metric sizes.

My only surprise with this cylinder was that the intake and exhaust bolt holes were not tapped for the attach hardware. The screws do not appear self tapping. I bought a tap and die set, but the holes are not the proper size for the tap. So trying to decide next move