Extend your Mercury engine’s life with this premium OEM VALVE KIT, Relief, Includes Reference #26. Factory-engineered for durability in harsh marine conditions that destroy inferior parts.

Manufactured to strict Mercury Marine quality standards, this service kit ensures reliable operation across all engine RPM ranges. Part number 893929A01 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.

Aftermarket parts might save a few dollars upfront, but genuine Mercury Marine part 893929A01 saves you money long-term by lasting years instead of months. Factory precision means perfect fit — no modifications, no surprises.

Compatible Mercury Marine Engines

FITS: 100-225HP MARINER, MERCURY (DFI, EFI)

• Fits MARINER, MERCURY 100-225HP engines
• Compatible with 8 different HP configurations
• Model types: DFI, EFI
• Covers 24 serial number ranges
• Configurations: Jet Drive, Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

100HP Models

• 100HP EFI (Mariner)
• 100HP EFI (Mercury)

110HP Models

• 110HP JET (Mercury)

115HP Models

• 115HP DFI (Mariner)
• 115HP DFI (Mercury)
• 115HP EFI (Mariner)
• 115HP EFI (Mercury)
• 115HP OUTBOARD (Mercury)

125HP Models

• 125HP DFI (Mariner)
• 125HP DFI (Mercury)

150HP Models

• 150HP OUTBOARD (Mercury)

175HP Models

• 175HP PROXS (Mercury)

200HP Models

• 200HP OUTBOARD (Mariner): 0T801000-1B417701, 1B417702-1B504988, 1B504989-1B912785
• 200HP OUTBOARD (Mercury): 0T801000-1B417701, 1B417702-1B504988, 1B417702-1B504988, 1B504989-1B912785
• 200HP PRO XS (Mercury): 1B504989-1B912785

225HP Models

• 225HP OUTBOARD (Mariner): 0T801000-1B417701

Not sure where to find your engine’s serial number? View our quick reference guide to locate it on your Mercury Marine engine.

Verification & Support

Want to verify compatibility for part 893929A01? 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

Four decades of marine parts experience. Competitive pricing, same-day shipping on most orders.