Sierra 18-9146-9 Oetiker Clamp, 19.8mm ID, Bag of 10, Yamaha Outboard Fuel System
The Sierra 18-9146-9 is a 19.8mm (25/32 inch) nominal ID Oetiker-style pinch clamp, sold in a bag of 10. Oetiker clamps use a stepless, one-piece steel band that is crimped in place with a special pincer tool, giving a smooth, low-profile band with no protruding screw housing -- a common choice for securing fuel and coolant hose connections on marine engines where a compact, vibration-resistant seal is needed. This part is used in Yamaha outboard fuel system applications. Each bag contains 10 clamps of the same 19.8mm size, and clamps are also available individually rather than only as a full bag. Sierra manufactures this part to meet or exceed the specification of the original equipment it replaces, and Sierra supplies OEM engine manufacturers and boat builders with parts on an ongoing basis. Because Oetiker clamps are sized to a specific nominal ID, it is important to confirm the 19.8mm (25/32 inch) diameter matches the hose being clamped before ordering -- Sierra also offers this same clamp style in other nominal ID sizes such as 15.7mm (5/8 inch) under a different part number.
Specifications
- Brand: Sierra
- Manufacturer Part Number: 18-9146-9
- Product Type: Oetiker-style pinch clamp
- Nominal Inside Diameter: 25/32 inch (19.8 mm)
- Package Quantity: Bag of 10, also available individually
- Weight: 0.08 pounds
- Category: Yamaha Outboard Fuel System
- Cross Reference Numbers: YB-6AW04-3, 16702498
Fitment
Used in Yamaha outboard fuel system applications.
Replaces (OEM)
- YB-6AW04-3
- 16702498
Frequently Asked Questions
What size hose does the Sierra 18-9146-9 clamp fit? The Sierra 18-9146-9 has a nominal inside diameter of 25/32 inch, which is 19.8mm, so it is sized for hose in that range.
How many clamps come in one package? Each package of the 18-9146-9 contains 10 Oetiker-style clamps, sold as a bag of 10.
Can I buy the 18-9146-9 clamps individually instead of a full bag of 10? Yes, while the standard package is a bag of 10, the Sierra 18-9146-9 clamp is also available individually.
What tool do I need to install this clamp? Oetiker clamps like the Sierra 18-9146-9 require a dedicated Oetiker pincer tool to crimp the stepless steel band closed around the hose.
Is the Sierra 18-9146-9 an OEM equivalent part? Sierra manufactures the 18-9146-9 to meet or exceed the original equipment part it replaces, and it corresponds to OEM reference numbers YB-6AW04-3 and 16702498.
What application is the 18-9146-9 clamp used for? The Sierra 18-9146-9 Oetiker clamp is used in Yamaha outboard fuel system applications.
What is the difference between this clamp and the Sierra 18-9133-9? The 18-9146-9 has a 25/32 inch (19.8mm) nominal ID, while the 18-9133-9 is the same Oetiker-style clamp in a smaller 5/8 inch (15.7mm) nominal ID -- they are different SKUs for different hose sizes.
Are Oetiker clamps reusable once removed? Oetiker-style clamps such as the 18-9146-9 are a one-piece stepless band that is crimped shut, so they are designed for single use and must be cut off and replaced with a new clamp once removed.
How much does a bag of Sierra 18-9146-9 clamps weigh? A package of the Sierra 18-9146-9 clamps weighs 0.08 pounds.
Why use an Oetiker clamp instead of a standard worm-gear hose clamp? The Sierra 18-9146-9 Oetiker clamp uses a smooth, low-profile crimped steel band with no protruding screw housing, giving a more compact fit in tight engine compartments compared to a worm-gear clamp.