Save hundreds in dealer fees – install this genuine Mercury Marine REPAIR KIT-CARB yourself. Our parts experts provide guidance if needed, and you get OEM quality at discount pricing.

Engineered to Mercury’s rigorous OEM standards, this service kit ensures reliable operation across all engine RPM ranges. Part number 51091 is manufactured to exact Mercury Marine factory specifications for precision installation and optimal performance. Constructed from premium marine-grade materials designed to withstand harsh saltwater and freshwater environments.

Factory parts exist for a reason — they work. Part 51091 undergoes rigorous Mercury Marine quality testing that aftermarket manufacturers skip. The result? Reliable performance season after season.

Compatible Mercury Marine Engines

FITS: 530-636HP MERCRUISER

• Fits MERCRUISER 530-636HP engines
• Compatible HP: 530HP, 636HP
• Covers 11 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

530HP Models

• 530HP OUTBOARD (Mercruiser): 0B993002-0D725151

636HP Models

• 636HP OUTBOARD (Mercruiser): 0B993002-0D850127

HP Models

• HP OUTBOARD (Mercruiser): 0B993002-0D725151, 0B993002-0D850127, 0C849461-0D554731, 0C849461-0D554731, 0D554732-0M999999

Looking for your Mercury engine serial number? Our helpful guide shows you exactly where serial numbers are located on different engines.

Verification & Support

Want to verify compatibility for part 51091? Use our parts finder tool for instant confirmation. Still have questions? No problem – use the contact buttons at the bottom of this page to reach us by text, call, or email

Serving boaters for over 40 years. Competitive pricing, same-day shipping on most orders.