Installation Kit

Technical Specifications:

• Brand: Walbro / TI Automotive

• Part Number (MPN): 400-939

• Product Type: External Inline Fuel Pump Installation Kit (HARDWARE ONLY)

• Compatibility: Designed exclusively for Walbro GSL-Series External Pumps (e.g., GSL392, GSL394, GSL396)

• Fitting Style: 3/8" (10mm) Hose Barb (Thread pitch: 10mm x 1.5)

Performance & Fitment Features:

• CRITICAL PURCHASE WARNING (NO PUMP INCLUDED): THIS IS NOT A FUEL PUMP. This listing is strictly for the mounting hardware and fitting kit required to install an external pump. Do not purchase this item expecting to receive a fuel pump.

• External (Inline) Pump Exclusive: This kit is engineered strictly for chassis-mounted external fuel pumps. It is completely incompatible with submersible in-tank pumps (such as the GSS or DCSS F9000 series).

• Vibration & Noise Isolation: High-pressure external pumps transfer severe resonance into the vehicle cabin. This kit includes a custom foam insulation sleeve and heavy-duty, rubber-coated mounting clamps to absorb vibration and secure the pump safely to the chassis.

• Complete Hardware Package: Includes two (2) brass 3/8" hose barb fittings, copper crush washers to ensure a leak-proof seal at the pump body, mounting brackets, the vibration sleeve, and electrical ring terminals with securing nuts.

Federal Emissions Compliance:

• Emissions Code: 5 (Mounting Hardware)

• Status: This is a physical mounting component that does not alter factory emissions control equipment. It is strictly legal for sale, installation, and street use in all 50 US states, including California. No CARB Executive Order (EO) is required.

Disclaimer & Warranty Information: Onyx Customs FL acts exclusively as an authorized retailer of high-performance automotive components. We do not manufacture this product. Pressurized fuel systems carry extreme risk. Failing to properly torque the included brass fittings with the provided copper crush washers will result in high-pressure fuel leaks, leading to catastrophic vehicle fires. Onyx Customs FL assumes no liability for direct or indirect damages, fires, or diagnostics costs resulting from the incorrect installation of this hardware. All manufacturing defects and warranty claims are strictly the responsibility of TI Automotive. We strictly mandate that all fuel system components be installed and pressure-tested by a certified professional race mechanic.