Oetiker stainless steel pex clamps ensure full 360 compression of plastic or rubber fuel line without the risk of expansion or corrosion. Pex clamps secure and tighten fuel lines in your fuel pump assembly and fuel system ensuring against leaks that lead to pressure drops and premature failure of fuel pumps. All clamps sizes use the same pex clamp tool found here for easy installation.
Oetiker ear/pex clamps deliver full 360-degree compression on plastic and rubber fuel line, securing connections in fuel pump assemblies and EFI fuel systems without the risk of expansion or corrosion that affects traditional worm-drive hose clamps. These stainless steel clamps protect against leaks that lead to pressure drops and premature fuel pump failure.
Constructed from stainless steel, OET-PX clamps resist corrosion across the chemical environments found inside and around fuel systems. Worm-drive clamps in non-stainless materials degrade when exposed to fuel and moisture, leading to loosening and leaks over time. Stainless construction ensures the clamping force established at installation remains stable for the long term.
Unlike worm-drive clamps that compress only at the screw point, Oetiker ear clamps apply uniform 360-degree compression around the entire hose circumference. This eliminates the high-pressure stress points that cut into the fuel hose and prevents the expansion that occurs when a worm-drive clamp loosens under thermal cycling or fuel system pressure variations.
Every OET-PX clamp size uses the same PEX cinch clamp tool for installation, simplifying the toolkit required to work across multiple fuel system applications. The Quantum pex cinch clamp tool is sold separately and provides the leverage needed to fully compress the ear closure, ensuring consistent installation pressure across every clamp applied.
OET-PX clamp lineup covers the full range of sizes needed for EFI fuel hose work, from in-tank pump assembly plumbing to engine bay fuel line connections. Each clamp delivers the secure, leak-free connection EFI fuel pressures require, protecting against the slow leaks that hurt pump performance and contribute to driveability issues.
OET-PX is offered in 11.3mm, 12.3mm, 12.8mm, 13.3mm, 15.3mm, 15.7mm, 16.2mm, 17mm, 45.5mm, and 66.5mm sizes to match the hose outside diameter required for the application. Sizing correctly to the hose OD is critical for proper compression, so always verify the clamp size against the specific fuel hose being installed.
Pack options include 4-count, 10-count, 25-count, 50-count, and 100-count quantities, supporting everything from a single hose replacement to a full shop inventory restock. Bulk pack pricing is advantageous for installers performing multiple fuel pump assembly jobs or for builders working through a complete custom fuel system from tank to engine bay.
Small leaks at fuel hose connections cause measurable pressure drops in the fuel system, forcing the pump to work harder to maintain rail pressure. Over time, that additional load shortens pump service life. Oetiker PEX clamps eliminate this failure path by providing a secure connection that holds full system pressure without leakage.
Oetiker ear/pex clamps secure fuel hose to barb fittings in fuel pump assemblies and EFI fuel systems. The clamp applies full 360-degree compression around the hose, holding it to the fitting with consistent force that prevents leaks under fuel system pressure, thermal cycling, and the chemical exposure of modern ethanol-blended fuels.
OET-PX clamp lineup includes 11.3mm, 12.3mm, 12.8mm, 13.3mm, 15.3mm, 15.7mm, 16.2mm, 17mm, 45.5mm, and 66.5mm options. Clamp size matches the outside diameter of the fuel hose being secured, so confirm the hose OD before ordering to ensure the clamp will fully compress and seal correctly against the barb fitting.
Worm-drive clamps compress unevenly, creating pressure points that can cut into the fuel hose and loosen over thermal cycles. Oetiker pex clamps apply uniform 360-degree compression with stainless steel construction, eliminating those failure modes. This makes them the preferred choice for EFI fuel systems where leaks cause pressure drops and accelerated fuel pump wear.
Yes. Oetiker ear/pex clamps require a dedicated pex cinch clamp tool to fully compress the ear closure. The Quantum pex cinch clamp tool works across every OET-PX clamp size offered, making it a one-tool solution for installing multiple sizes during a single job. The tool is sold separately from the clamps.
No. Once an Oetiker ear/pex clamp is compressed during installation, it deforms permanently to maintain clamping force on the hose. Removing the clamp requires cutting it off the hose, after which it must be replaced with a new clamp. Always have replacement clamps on hand before disconnecting the fuel hose for service work.
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