Sierra Shift Cable Adjustment Tool 18-9807, Replaces Mercury Marine 91-12427, for Bravo Drive Unit Shift Plate

The Sierra 18-9807 Shift Cable Adjustment Tool is a specialty tool built for setting proper shift cable adjustment on Bravo drive units. It attaches over the shift cable and is used at the shift plate to ensure the cable is correctly positioned before final tightening, a step that directly affects clean, reliable shifting between forward, neutral, and reverse. The tool has a machined white exterior and is sized for direct fitment onto the shift cable during service work.

This tool is intended for technicians and DIY boaters performing shift cable installation, replacement, or adjustment on Bravo drive units. Using the correct adjustment tool helps prevent improper cable tension, which can cause hard shifting, gear slip, or premature wear on the shift cable and drive components. The 18-9807 is a compact, purpose-built tool that takes the guesswork out of this adjustment step.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-9807
• Product Type: Shift Cable Adjustment Tool
• Application: Bravo drive unit shift cable adjustment at the shift plate
• Finish: Machined
• Color: White
• Weight: 0.1 pounds
• Product Dimensions: 0.39 x 0.39 x 0.39 inches
• Replaces: Mercury Marine 91-12427, 91-12427T

Fitment

• Bravo drive units

Replaces (OEM)

• Mercury Marine 91-12427
• Mercury Marine 91-12427T

Frequently Asked Questions

What is the Sierra 18-9807 Shift Cable Adjustment Tool used for? It attaches over the shift cable and is used to set proper shift cable adjustment at the shift plate on Bravo drive units.

Does the 18-9807 tool fit Bravo drive units? Yes, the Sierra 18-9807 Shift Cable Adjustment Tool is designed for shift cable adjustment on Bravo drive units.

What OEM part numbers does the 18-9807 replace? The Sierra 18-9807 replaces Mercury Marine 91-12427 and 91-12427T.

Is the Sierra 18-9807 the same tool as Mercury Marine 91-12427? Functionally yes, the Sierra 18-9807 is the direct aftermarket equivalent that replaces Mercury Marine 91-12427 and 91-12427T.

How much does the shift cable adjustment tool weigh? The Sierra 18-9807 weighs 0.1 pounds.

What are the dimensions of the 18-9807 adjustment tool? It measures 0.39 x 0.39 x 0.39 inches.

What color is the Sierra 18-9807 tool? The Sierra 18-9807 Shift Cable Adjustment Tool has a white, machined exterior.

How does the 18-9807 tool work during installation? The tool attaches directly over the shift cable so it can be positioned at the shift plate, allowing the correct cable adjustment to be set before final tightening.

Why is proper shift cable adjustment important? Correct adjustment, set using a tool like the Sierra 18-9807, helps ensure clean shifting between gears and can prevent hard shifting or premature wear on Bravo drive unit shift components.

Is the Sierra 18-9807 a genuine Sierra part? Yes, 18-9807 is the Sierra manufacturer part number for this Shift Cable Adjustment Tool.

What is included with the 18-9807 tool? The Sierra 18-9807 is sold as the single shift cable adjustment tool.