Weld-In Bung & Cap Assembly

Image	Part Number	Description
	C73-730	1-5/8 in. BLACK FILL CAP WITH STEEL WELD BUNG 1-1/4-12 Straight Thread 1-1/2 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-749)
	C73-731	1-5/8 in. RED FILL CAP WITH STEEL WELD BUNG 1-1/4-12 Straight Thread 1-1/2 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-749)
	C73-732	1-5/8 in. BLUE FILL CAP WITH STEEL WELD BUNG 1-1/4-12 Straight Thread 1-1/2 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-749)
	C73-734	1-5/8 in. POLISHED FILL CAP WITH STEEL WELD BUNG 1-1/4-12 Straight Thread 1-1/2 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-749)
	C73-735	1-5/8 in. BLACK FILL CAP WITH ALUMINUM WELD BUNG 1-1/4-12 Straight Thread 1-5/8 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-749)
	C73-736	1-5/8 in. RED FILL CAP WITH ALUMINUM WELD BUNG 1-1/4-12 Straight Thread 1-5/8 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-749)
	C73-737	1-5/8 in. BLUE FILL CAP WITH ALUMINUM WELD BUNG 1-1/4-12 Straight Thread 1-5/8 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-749)
	C73-739	1-5/8 in. POLISHED FILL CAP WITH ALUMINUM WELD BUNG 1-1/4-12 Straight Thread 1-5/8 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-749)
	C73-750	2 in. BLACK FILL CAP WITH STEEL WELD BUNG 1-1/2-12 Straight Thread 1-3/4 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-769)
	C73-751	2 in. RED FILL CAP WITH STEEL WELD BUNG 1-1/2-12 Straight Thread 1-3/4 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-769)
	C73-752	2 in. BLUE FILL CAP WITH STEEL WELD BUNG 1-1/2-12 Straight Thread 1-3/4 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-769)
	C73-754	2 in. POLISHED FILL CAP WITH STEEL WELD BUNG 1-1/2-12 Straight Thread 1-3/4 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-769)
	C73-755	2 in. BLACK FILL CAP WITH ALUMINUM WELD BUNG 1-1/2-12 Straight Thread 2 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-769)
	C73-756	2 in. RED FILL CAP WITH ALUMINUM WELD BUNG 1-1/2-12 Straight Thread 2 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-769)
	C73-757	2 in. BLUE FILL CAP WITH ALUMINUM WELD BUNG 1-1/2-12 Straight Thread 2 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-769)
	C73-759	2 in. POLISHED FILL CAP WITH ALUMINUM WELD BUNG 1-1/2-12 Straight Thread 2 in. Outside Diameter Bung 1/2 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-769)
	C73-770	2-3/4 in. BLACK FILL CAP WITH STEEL WELD BUNG 2-1/4-10 Straight Thread 2-3/4 in. Outside Diameter Bung 5/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-788-A)
	C73-771	2-3/4 in. RED FILL CAP WITH STEEL WELD BUNG 2-1/4-10 Straight Thread 2-3/4 in. Outside Diameter Bung 5/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-788-A)
	C73-772	2-3/4 in. BLUE FILL CAP WITH STEEL WELD BUNG 2-1/4-10 Straight Thread 2-3/4 in. Outside Diameter Bung 5/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-788-A)
	C73-774	2-3/4 in. POLISHED FILL CAP WITH STEEL WELD BUNG 2-1/4-10 Straight Thread 2-3/4 in. Outside Diameter Bung 5/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-788-A)
	C73-775	2-3/4 in. BLACK FILL CAP WITH ALUMINUM WELD BUNG 2-1/4-10 Straight Thread 2-3/4 in. Outside Diameter Bung 5/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-788-A)
	C73-776	2-3/4 in. RED FILL CAP WITH ALUMINUM WELD BUNG 2-1/4-10 Straight Thread 2-3/4 in. Outside Diameter Bung 5/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-788-A)
	C73-777	2-3/4 in. BLUE FILL CAP WITH ALUMINUM WELD BUNG 2-1/4-10 Straight Thread 2-3/4 in. Outside Diameter Bung 5/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-788-A)
	C73-779	2-3/4 in. POLISHED FILL CAP WITH ALUMINUM WELD BUNG 2-1/4-10 Straight Thread 2-3/4 in. Outside Diameter Bung 5/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C73-788-A)
	C74-770	4-1/4 in. BLACK FILL CAP WITH STEEL WELD BUNG 3-3/4-8 Straight Thread 4-3/8 in. Outside Diameter Bung 7/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C74-788-A)
	C74-771	4-1/4 in. RED FILL CAP WITH STEEL WELD BUNG 3-3/4-8 Straight Thread 4-3/8 in. Outside Diameter Bung 7/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C74-788-A)
	C74-772	4-1/4 in. BLUE FILL CAP WITH STEEL WELD BUNG 3-3/4-8 Straight Thread 4-3/8 in. Outside Diameter Bung 7/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C74-788-A)
	C74-774	4-1/4 in. POLISHED FILL CAP WITH STEEL WELD BUNG 3-3/4-8 Straight Thread 4-3/8 in. Outside Diameter Bung 7/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C74-788-A)
	C74-775	4-1/4 in. BLACK FILL CAP WITH ALUMINUM WELD BUNG 3-3/4-8 Straight Thread 4-3/8 in. Outside Diameter Bung 7/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C74-788-A)
	C74-776	4-1/4 in. RED FILL CAP WITH ALUMINUM WELD BUNG 3-3/4-8 Straight Thread 4-3/8 in. Outside Diameter Bung 7/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C74-788-A)
	C74-777	4-1/4 in. BLUE FILL CAP WITH ALUMINUM WELD BUNG 3-3/4-8 Straight Thread 4-3/8 in. Outside Diameter Bung 7/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C74-788-A)
	C74-779	4-1/4 in. POLISHED FILL CAP WITH ALUMINUM WELD BUNG 3-3/4-8 Straight Thread 4-3/8 in. Outside Diameter Bung 7/8 in. Bung Height Made in the USA (Cap Replacement O-Ring is C74-788-A)

WELD-IN BUNG & CAP ASSEMBLY

This lightweight, non-vented cap features positive grip finger notches and quick-starting course threads. Caps are available in anodized black, red, blue, or polished aluminum. Each is standard with a special " radial squeeze " o-ring seal. We offer a choice of weld-in bung (aluminum and steel) or bolt-on bung (aluminum only). Billet Aluminum Fill Caps are our specialty.