Sierra 18-2604E Lower Shift Cable Kit (Xtreme) - Replaces 815471T1 - MerCruiser Bravo

The Sierra 18-2604E is an Xtreme-series lower shift cable kit built for MerCruiser Bravo stern drives. It is a direct replacement for the Mercury Marine OEM part 815471T1, giving boat owners and marine technicians a reliable option for restoring proper shift linkage function between the control and the lower drive unit. This kit is designed to work with the Sierra 18-2145E shift cable, connecting the control-side shift mechanism to the Bravo drive so gear engagement stays accurate and responsive.

Shift cables are a wear item on stern drive boats, and a worn or stretched cable can cause hard shifting, slipping out of gear, or failure to engage forward and reverse cleanly. Replacing the lower shift cable kit with a properly fitted, OEM-equivalent part like the 18-2604E restores the mechanical connection so the shifter, cable, and drive unit work together as designed. The kit weighs 1.6 pounds and is sold under the Sierra brand, a long-established supplier of MerCruiser-compatible replacement parts.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2604E
• Product Name: Lower Shift Cable Kit (Xtreme)
• Replaces (OEM): 815471T1
• Compatible Shift Cable: 18-2145E
• Fitment: MerCruiser Bravo
• Weight: 1.6 pounds
• UPC: 808282184476

Fitment

• MerCruiser Bravo

Replaces (OEM)

• 815471T1

Frequently Asked Questions

What does the Sierra 18-2604E lower shift cable kit fit? The Sierra 18-2604E Lower Shift Cable Kit (Xtreme) is designed for MerCruiser Bravo stern drives.

Is the 18-2604E a direct replacement for the Mercury Marine 815471T1? Yes, the 18-2604E is built to replace Mercury Marine OEM part 815471T1 on MerCruiser Bravo drives.

Does the 18-2604E work with a specific shift cable? This kit is designed to work with the Sierra 18-2145E shift cable to complete the lower shift linkage.

How much does the 18-2604E shift cable kit weigh? The Sierra 18-2604E Lower Shift Cable Kit weighs 1.6 pounds.

Is Sierra 18-2604E genuine Mercury Marine or aftermarket? It is a Sierra-brand aftermarket kit engineered as a direct equivalent to Mercury Marine OEM part 815471T1, not a Mercury-branded part.

Why would I need to replace a lower shift cable kit on a Bravo drive? A worn or stretched lower shift cable on a MerCruiser Bravo drive can cause hard shifting or failure to engage gear properly; the 18-2604E kit restores that connection.

What symptoms indicate I need the 18-2604E instead of just adjusting the existing cable? If the shift cable is stretched, frayed, or binding rather than simply out of adjustment, the Sierra 18-2604E kit replaces the worn cable rather than compensating for wear through adjustment.

Is the 18-2604E part of Sierra's Xtreme product line? Yes, the 18-2604E is sold as part of Sierra's Xtreme lower shift cable kit lineup for MerCruiser Bravo applications.

What is included in the Sierra 18-2604E kit? The 18-2604E is the lower shift cable kit itself, engineered to pair with the Sierra 18-2145E shift cable for a complete MerCruiser Bravo shift linkage repair.

Can the 18-2604E be used on drives other than MerCruiser Bravo? The Sierra 18-2604E lower shift cable kit is specified for MerCruiser Bravo stern drives.