Oregon 49-085 Primer Bulb Tecumseh Part 36045A

What It Is

The Oregon 49-085 is a replacement primer bulb for small engines, primarily used on Tecumseh and certain other lawn mower, snow blower, and generator engines. It delivers fuel to the carburetor by creating suction when pressed, helping the engine start.

Fitment & Compatibility

Before buying, verify your engine’s make and model. This bulb fits Tecumseh part 36045A and is compatible with many Tecumseh engines (e.g., OHV, LEV, LV, VLV, VH) used on brands like Craftsman, Murray, and Toro. It also fits some Briggs & Stratton and Kohler engines with the same bulb size. Measure the bulb’s outer diameter (approx. 1.125 inches) and the mounting hole on your carburetor or fuel tank. Not all primer bulbs are interchangeable—check for a rubber grommet or push-in fit. Avoid buying if your engine uses a different bulb style (e.g., push-button or remote primer).

Key Things to Know

• Quality: Oregon is a well-known aftermarket brand—this bulb is made of durable rubber, but it’s not OEM Tecumseh. Some users report it feels slightly softer than the original.
• Installation: Easy—just pop off the old bulb (may require prying) and press the new one into the grommet. No tools needed, but clean the mounting area first to prevent debris from entering the carburetor.
• Common gotcha: The bulb may not fit tightly if the grommet is worn or cracked. If your old grommet is damaged, replace it separately (Oregon 49-086 or generic).
• Use: Works best for small engines (under 10 HP). Not intended for large commercial mowers or engines with a different primer system.

Should You Buy It

If your Tecumseh or compatible engine has a cracked, hard, or missing primer bulb, this is a reliable, low-cost fix. It’s ideal for DIYers who want a quick, no-hassle replacement without hunting for OEM parts. Avoid if your engine uses a different bulb size or if the grommet is damaged—you’ll need both parts.