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ADAPTER

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Description & Features

This adapter fitting is suitable for a variety of hydraulic applications.

SKU: 4503-12-12

Supplier Part Number (MPN): 4503-12-12-FG

Alternate Part Numbers: C1DX46

Specifications

Brand BRENNAN	Connection Size 1 3/4 in	Connection Size 2 3/4 in	Connection Type Barbed, MNPT	Connection Type 1 SAE Beaded Hose Barbed	Connection Type 2 Male SAE 30 deg NPTF	Dimension Standards SAE J1231-2, SAE J476	Finish Trivalent Zinc-Plated	Fitting Type 45 deg Elbow	Hex Size 1-1/8 in	Material Steel	Material Construction AISI C1045 Steel	Series 4503-FG Series	Thread Size 3/4-14

Product Questions & Answers (3)

Question by: Cindy C on Jan 21, 2026, 4:13 PM

Reckon this'll fit my existing setup? Gotta replace one that went belly up.

Answer by: Customer Support on Jan 22, 2026, 7:01 PM

To ensure proper fit, you'll want to check if the part number 4503-12-12-FG or alternate part number C1DX46 matches your current adapter.

Question by: Harold G on Oct 15, 2025, 9:22 AM

part number C1DX46, is that the same fitting as the 4503-12-12? trying to cross reference what we got on the shelf

Answer by: Customer Support on Oct 17, 2025, 8:27 AM

Same part, different reference number. The C1DX46 is listed as an alternate part number for SKU 4503-12-12, which carries the Brennan Industries manufacturer part number 4503-12-12-FG. If you've got C1DX46 in your system, you're looking at the right fitting.

Question by: Hubert L on Jul 10, 2025, 3:11 PM

got a bin full of fittings, how do i tell if this adapter is the one i need?

Answer by: Customer Support on Jul 12, 2025, 1:03 PM

Start with the identifiers. This adapter is sold under SKU 4503-12-12, with supplier part number 4503-12-12-FG, and it also crosses to alternate part number C1DX46. Matching one of those numbers to what you have on hand is the surest way to confirm you are looking at the same part.

ADAPTER

Description & Features

Specifications

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Product Questions & Answers (3)