FLEECE FPE-AN971-10DRD -10AN ALUMINUM MALE WELD BUNG 5/8 INCH REGISTER 7/8 INCH OD

Build cleaner, more serviceable plumbing on your next project with the FLEECE FPE-AN971-10DRD -10AN ALUMINUM MALE WELD BUNG (5/8 INCH REGISTER, 7/8 INCH OD). This precision-machined aluminum bung gives you a rock-solid -10AN male connection wherever you need a feed, return, or vent in tanks, sumps, intercooler piping, or catch cans. Lightweight, corrosion-resistant, and easy to weld, it’s a go-to piece for serious fabricators and DIY builders. Fleece -10AN weld bung, aluminum male AN weld bung, universal fuel oil coolant fitting, fabrication bung for custom tanks sumps catch cans, CPP Diesel Fleece fabrication components, FPE-AN971-10DRD weld bung

Key Features

• -10AN aluminum male weld bung for custom fuel, oil, and coolant systems
• 5/8 inch register for precise alignment prior to welding
• 7/8 inch OD for common fabrication layouts and tube sizes
• Lightweight, corrosion-resistant aluminum construction
• Perfect for sumps, tanks, intercooler piping, catch cans, and more

Fitment / Use Cases

Type: Universal weld-in bung for fluid and vapor plumbing
Thread style: -10AN male
Typical applications: Fuel feed/return, oil drain/return, coolant crossover, breather and catch can ports, surge tanks, and custom fabricated reservoirs
Material: Aluminum (weld-in)

Cross-Reference / Related Fleece Products (CPP Diesel)

• FLEECE FPE-AN971-08DRD -8AN ALUMINUM MALE WELD BUNG 1/2 INCH REGISTER 3/4 INCH OD
• FLEECE FPE-AN4-332B 4AN TO 3/32 INCH ID HOSE BARB
• FLEECE FPE-34900-A 1/2 INCH QUICK CONNECT TO 3/4 INCH-16 O-RING (-8 AN)
• FLEECE FPE-34550-A 12MM QUICK CONNECT TO 3/4 INCH-16 O-RING (-8 AN)

This bung provides a standard -10AN male connection, commonly used for larger fuel feed lines, oil drain/return lines, or high-flow breather/catch can plumbing.

No—FPE-AN971-10DRD is a universal part. It can be welded into aluminum tanks, tubes, and fabrications on a wide range of diesel and gas builds wherever you need a -10AN male port.

The bung is machined from high-quality aluminum, providing a strong yet lightweight solution that resists corrosion in fuel, oil, and coolant environments.

TIG welding is recommended for clean, precise attachment to aluminum tanks, sumps, and tubing. A qualified welder will ensure leak-free results and long-term durability.

Yes. Like many automotive components, this weld bung is sold with a California Proposition 65 warning for Cancer and Reproductive Harm. See the Specifications table for details.

Specifications for FLEECE FPE-AN971-10DRD