6pc 694394 Primer Bulb for B & S 494408 NHC 262-4018 Oregon 49-058 Lawn Mower Parts (6pcs)

What It Is

This is a 6-pack of replacement primer bulbs designed for small engines, primarily used on lawn mowers, trimmers, and other outdoor power equipment. The primer bulb pushes fuel into the carburetor to aid cold starts, and these bulbs are a common wear item that hardens or cracks over time.

Fitment & Compatibility

Before buying, verify your equipment uses a Briggs & Stratton or Oregon-compatible primer bulb system. These bulbs cross-reference with OEM numbers 694394, 494408, NHC 262-4018, and Oregon 49-058. They are not universal—measure your existing bulb’s outer diameter (typically around 1 inch) and ensure the stem length matches. Common on walk-behind mowers with B&S engines (e.g., 500e, 550e series) and some Craftsman or Troy-Bilt models. Not for zero-turn or large commercial mowers.

Key Things to Buy

• Quality: These are aftermarket bulbs, not OEM. Expect slightly softer rubber than originals; they may wear faster if exposed to ethanol-blended fuel.
• Installation: Easy—pop off the old bulb, push in the new one. No tools needed unless the retainer ring is stuck. Takes 2-3 minutes per mower.
• Gotcha: Bulbs may be slightly loose in some fuel caps. Check fitment before reassembling the cap fully. If too loose, use a dab of silicone sealant.
• Value: 6-pack at $8.99 is cheap per bulb compared to single OEM replacements ($4-6 each), but you’re trading longevity for cost.

Should You Buy It

Buy this if you maintain multiple mowers or trimmers that use these common B&S primer bulbs and want a budget-friendly bulk option. Skip it if you need a precise OEM fit for a commercial or hard-to-start machine—spend a little more for a single OEM bulb to avoid premature failure.