1998+ Mercury Mariner 25HP Bigfoot Service Manual, Page 336Get this manual

POWER TRIM
Power Trim Reassembly
IMPORTANT: Lubricate all O-rings with Power TrimSteering Fluid If not available, use automotive (ATF) automatic transmission fluid

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives