694395 496115 Primer Bulb Fit for Briggs & Stratton 5085 5085H 5085K Lawn Mower Parts Durable Primer Bulb Fit for Quantum 694395 6.5 Through 7.0 HP 3.5-6.75 HP 625-875 Series Engines (5 Pcs)

What It Is

This is a 5-pack of aftermarket primer bulbs designed to replace the OEM Briggs & Stratton part numbers 694395 and 496115. It’s used on lawn mowers, pressure washers, and other small engines that require a primer bulb to manually push fuel into the carburetor for cold starts—common on Quantum, 625-875 Series, and 3.5–7.0 HP engines.

Fitment & Compatibility

Check these before buying:

• Engine series: Direct fit for Briggs & Stratton Quantum, 5085, 5085H, 5085K, and 625–875 Series engines (3.5–7.0 HP). Also fits 6.5–7.0 HP models.
• OEM cross-reference: Replaces OEM 694395 and 496115. If your engine uses a different bulb shape or mounting style (e.g., push-in vs. screw-in), this won’t work.
• Physical dimensions: Measure the bulb diameter and stem length. This is a standard push-in type with a rubber stem that fits into a plastic retainer on the carburetor or fuel tank. Verify your existing bulb’s shape matches.
• Deck size irrelevant: Fitment depends on the engine model, not the mower deck size. Check your engine’s model number (stamped on the valve cover or blower housing) to confirm compatibility.

Key Things to Know

• Quality: Aftermarket, not OEM. The rubber is slightly stiffer than genuine Briggs parts but works fine. The 5-pack is cost-effective for multiple mowers or as spares.
• Installation difficulty: Easy. Pry out the old bulb (use a flathead screwdriver carefully) and push the new one in until it seats. No tools required. Takes 2–5 minutes.
• Common gotcha: If the new bulb doesn’t snap in or feels loose, the plastic retainer may be cracked or worn. Replace the retainer separately (part 691039) for a secure fit.
• Durability: Lasts 1–3 seasons depending on fuel exposure and UV. Keep spares handy—they’re cheap and fail eventually.

Should You Buy It

Buy this if you have a Briggs & Stratton Quantum or 625-875 Series engine and need a quick, cheap fix for a hard-starting mower. The 5-pack is a steal for the price—great for DIYers with multiple small engines or as backup parts. Skip it if you require OEM exactness for a commercial machine or if your engine uses a different primer bulb style (e.g., screw-in or integrated fuel cap).