Bolt-On Bung & Cap Assembly

ImagePart NumberDescription
C73-712
2-3/4 in. SILVER ALUMINUM 6 HOLE FUEL CELL BUNG 2-1/4-10 Straight Thread
3/4 in. Bung Height
6 on 4.438 in. Dia. Bolt Circle

Incls. mount hdw. and Buna gasket
Fits 2-3/4 in. Easy Turn Fill Cap

Made in the USA See Product Details
C73-735-B
1-5/8 in. BLACK FILL CAP WITH ALUMINUM BOLT-ON BUNG 1-1/4-12 Straight Thread
4 on 2 in. Dia. Bolt Circle
9/16 in. Bung Height

Includes mounting hardware and Buna O-rings.

Made in the USA

(Cap Replacement O-Ring is C73-749 & Bung Replacement O-Ring is C73-748) See Product Details
C73-736-B
1-5/8 in. RED FILL CAP WITH ALUMINUM BOLT-ON BUNG 1-1/4-12 Straight Thread
4 on 2 in. Dia. Bolt Circle
9/16 in. Bung Height

Includes mounting hardware and Buna O-rings.

Made in the USA

(Cap Replacement O-Ring is C73-749 & Bung Replacement O-Ring is C73-748) See Product Details
C73-737-B
1-5/8 in. BLUE FILL CAP WITH ALUMINUM BOLT-ON BUNG 1-1/4-12 Straight Thread
4 on 2 in. Dia. Bolt Circle
9/16 in. Bung Height

Includes mounting hardware and Buna O-rings.

Made in the USA

(Cap Replacement O-Ring is C73-749 & Bung Replacement O-Ring is C73-748) See Product Details
C73-739-B
1-5/8 in. POLISHED FILL CAP WITH ALUMINUM BOLT-ON BUNG 1-1/4-12 Straight Thread
4 on 2 in. Dia. Bolt Circle
9/16 in. Bung Height

Includes mounting hardware and Buna O-rings.

Made in the USA

(Cap Replacement O-Ring is C73-749 & Bung Replacement O-Ring is C73-748) See Product Details
C73-755-B
2 in. BLACK FILL CAP WITH ALUMINUM BOLT-ON BUNG 1-1/2-12 Straight Thread
4 on 2.25 in. Dia. Bolt Circle
9/16 in. Bung Height

Includes mounting hardware and Buna O-rings.

Made in the USA

(Cap Replacement O-Ring is C73-769 & Bung Replacement O-Ring is C73-768) See Product Details
C73-756-B
2 in. RED FILL CAP WITH ALUMINUM BOLT-ON BUNG 1-1/2-12 Straight Thread
4 on 2.25 in. Dia. Bolt Circle
9/16 in. Bung Height

Includes mounting hardware and Buna O-rings.

Made in the USA

(Cap Replacement O-Ring is C73-769 & Bung Replacement O-Ring is C73-768) See Product Details
C73-757-B
2 in. BLUE FILL CAP WITH ALUMINUM BOLT-ON BUNG 1-1/2-12 Straight Thread
4 on 2.25 in. Dia. Bolt Circle
9/16 in. Bung Height

Includes mounting hardware and Buna O-rings.

Made in the USA

(Cap Replacement O-Ring is C73-769 & Bung Replacement O-Ring is C73-768) See Product Details
C73-759-B
2 in. POLISHED FILL CAP WITH ALUMINUM BOLT-ON BUNG 1-1/2-12 Straight Thread
4 on 2.25 in. Dia. Bolt Circle
9/16 in. Bung Height

Includes mounting hardware and Buna O-rings.

Made in the USA

(Cap Replacement O-Ring is C73-769 & Bung Replacement O-Ring is C73-768) See Product Details
C73-775-B
2-3/4 in. BLACK FILL CAP WITH ALUMINUM BOLT-ON BUNG 2-1/4-10 Straight Thread
5 on 3.125 in. Dia. Bolt Circle
11/16 in. Bung Height

Includes mounting hardware and Buna O-rings.

Made in the USA

(Cap Replacement O-Ring is C73-788-A & Bung Replacement O-Ring is C73-789) See Product Details
C73-776-B
2-3/4 in. RED FILL CAP WITH ALUMINUM BOLT-ON BUNG 2-1/4-10 Straight Thread
5 on 3.125 in. Dia. Bolt Circle
11/16 in. Bung Height

Includes mounting hardware and Buna O-rings.

Made in the USA

(Cap Replacement O-Ring is C73-788-A & Bung Replacement O-Ring is C73-789) See Product Details
C73-777-B
2-3/4 in. BLUE FILL CAP WITH ALUMINUM BOLT-ON BUNG 2-1/4-10 Straight Thread
5 on 3.125 in. Dia. Bolt Circle
11/16 in. Bung Height

Includes mounting hardware and Buna O-rings.

Made in the USA

(Cap Replacement O-Ring is C73-788-A & Bung Replacement O-Ring is C73-789) See Product Details
C73-779-B
2-3/4 in. POLISHED FILL CAP WITH ALUMINUM BOLT-ON BUNG 2-1/4-10 Straight Thread
5 on 3.125 in. Dia. Bolt Circle
11/16 in. Bung Height

Includes mounting hardware and Buna O-rings.

Made in the USA

(Cap Replacement O-Ring is C73-788-A & Bung Replacement O-Ring is C73-789) See Product Details

BOLT-ON 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 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.

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