84002107 Carburetor Tune Up Kit Compatible with For Briggs & Stratton 09P702 9P702 550EX 625EX 675EX 140cc 725 Engines with Air Filter & Cover

What It Is

This carburetor tune-up kit replaces the gaskets, seals, air filter, and cover on Briggs & Stratton 9P702 series engines (140cc–725cc). It’s designed for push mowers, edgers, and small tractors using 550EX, 625EX, or 675EX platforms.

Fitment & Compatibility

• Engine models: Briggs & Stratton 09P702, 9P702, 550EX, 625EX, 675EX, and 725cc variants.
• Check your engine code: Look for a 12-digit model number on the valve cover or under the blower housing. This kit fits only engines with a 9P702 prefix.
• Deck size not relevant: Fitment depends on engine, not mower deck width.
• OEM vs aftermarket: This is an aftermarket kit. OEM part numbers for reference: 84002107 (Briggs kit), 594285 (air filter), 691045 (cover).
• Measurements: Air filter is ~5.5" x 3.5" x 1.5". Cover bolts use 5/16" hex; check gasket thickness (included) matches your carburetor flange.

Key Things to Know

• Quality: Aftermarket gaskets may be thinner or less flexible than OEM—inspect for warping before installation.
• Installation difficulty: Moderate. Requires removing carburetor, cleaning bowl, and replacing all gaskets. A carburetor cleaner spray is recommended.
• Common gotcha: The air filter cover may not align perfectly with older engine housings—test-fit before tightening screws.
• Missing parts: Some kits lack the fuel bowl O-ring; verify yours is included or buy separately (Briggs part 398188).

Should You Buy It

If your 9P702-series engine is surging, hard to start, or leaking fuel from the carburetor, this kit is a cost-effective fix. It’s right for DIYers comfortable with basic small-engine carb work, but skip it if you need OEM-grade gaskets or a perfect cover fit—buy genuine Briggs parts instead.