#3 Male to 10mm x 1.0 Female Steel Adapter

The #3 Male to 10mm x 1.0 Female Steel Adapter from XRP-XTREME RACING PROD. is a precision hydraulic or fuel line fitting designed for custom automotive systems requiring reliable, leak-free connections. This adapter bridges incompatible port sizes in high-performance engine builds, fuel systems, transmission coolers, and custom plumbing applications where space or thread compatibility demands a stepped solution. Built to withstand the rigorous demands of racing, turbo installations, and modified powerplants, this fitting ensures your fuel delivery or hydraulic circuits maintain integrity under pressure and vibration.

Manufactured from high-strength steel, the #3 Male to 10mm x 1.0 Female adapter features a male #3 AN port on one end and a metric 10mm x 1.0 female thread on the other, allowing seamless transition between AN-standard and metric-threaded components. The metric 10mm x 1.0 specification is common in European performance engines and auxiliary system manifolds, making this adapter essential for transplants or hybrid cooling/fuel systems. Steel construction resists corrosion, vibration-induced loosening, and thermal cycling better than aluminum alternatives, while the precision-machined threads ensure no cross-threading and full seat pressure on first installation.

This adapter is ideal for LS-engine swaps, modern fuel system upgrades, custom intercooler plumbing, and any build mixing AN-port components with metric-threaded accessories. Whether you're routing lines around tight engine bays, connecting OEM metric manifolds to aftermarket AN hoses, or fabricating a bespoke fuel or coolant circuit, the compact 2.7 x 1 x 3.6-inch form factor fits tight spaces without sacrificing structural integrity. Installation requires standard wrenches and thread sealant where appropriate; ensure proper torque and seal engagement for pressure applications exceeding 100 psi.