Product Description
FLEECE FPE-34553-A 1/2″ HOSE BARB TO 3/4″-16 O-RING (-8 AN)
When you’re building or rebuilding a custom fuel or fluid system and need a reliable, low-profile adapter, the FLEECE FPE-34553-A is engineered to perform. With a 1/2″ hose barb on one end and a 3/4″-16 male O-ring boss (-8 AN) on the other, it offers a clean transition from hose to AN-style fitting. The black anodized aluminum construction ensures corrosion resistance and durability, while the short hex-height design gives you maximum installation clearance in tight engine bays or under chassis.
Key Features
- 1/2″ hose barb to 3/4″-16 male O-ring boss (-8 AN) adapter
- Black anodized aluminum construction for strength and durability
- Short hex height for tight-fit installs where space is limited
- Ideal for fuel, oil, coolant or other fluid-line transitions requiring a hose to AN connection
- Universal application — fits many custom systems across diesel or performance platforms
Fitment & Applications
This Fleece adapter is a universal-style fitting. It is not vehicle-specific but works in any system that uses a 1/2″ hose on one end and a 3/4″-16 O-ring boss (-8 AN) on the other. Typical systems include:
- After-market fuel pumps or fuel filters with hose outlet
- Oil cooler or remote oil filter setups requiring hose to AN-style connection
- Custom coolant or return-line plumbing on performance trucks
- Any custom fabrication scenario where a hose-barb to O-ring boss transition is needed
Cross-Reference / Related Fleece Products
Complete your fluid system with these matching Fleece adapters and fittings available at CPP Diesel:
- FLEECE FPE-34554-A 5/8″ Hose Barb to 3/4″-16 O-ring (-8 AN) – larger barb variant for heavier hose applications.
- FLEECE FPE-34555-A 3/4″ Hose Barb to 3/4″-16 O-ring (-8 AN) – ideal when upgrading to larger hose size.
- FLEECE FPE-34556-A 1/4″ Hose Barb to 3/4″-16 O-ring (-8 AN) – smaller barb version for return lines or low-flow applications.
Why Choose Fleece Performance Engineering?
With roots in diesel performance and a dedication to quality engineering, Fleece delivers fittings and components that can stand up to real-world abuse. Their anodized aluminum builds, attention to install clearance (short hex height), and universal fitments make this adapter a smart choice for custom applications from street trucks to heavy-duty duty rigs.
Installation Notes
- Ensure the hose used is compatible with barb frames; a proper clamp (e.g., T-bolt or worm gear) is recommended for secure sealing.
- On the O-ring boss side: clean the female port, apply proper assembly lubricant, and torque to Fleece or OE specs.
- Inspect routed hose for abrasion, heat risk, or vibration points—proper support ensures longevity.
- If using in a fuel system, ensure the hose, fitting, and clamp are rated for the intended fuel type and pressure.
Specifications for FLEECE FPE-34553-A
| Attribute | Value |
|---|---|
| Brand | Fleece Performance Engineering |
| Part Number | FPE-34553-A |
| Connection A | 1/2″ Hose Barb |
| Connection B | 3/4″-16 O-ring Boss (-8 AN) |
| Material / Finish | Black anodized aluminum |
| Hex Height | Short hex design for install clearance |
| Application | Universal – hose to AN/O-ring boss transitions |
| Prop 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
| Shipping Info | Lightweight single-fitting ship weight, typically ships in padded envelope or small box |
FAQ
What does the FPE-34553-A fit?
This adapter transitions a 1/2″ hose barb to a 3/4″-16 male O-ring boss (-8 AN) fitting. It is designed for universal applications where you want to go from a hose line to an AN‐O-ring boss port.
What materials and finish are used?
The FPE-34553-A is built from black anodized aluminum, offering corrosion resistance and strength for fuel/oil/fluid systems. The short hex profile also improves installation clearance.
Can I use this on a high-pressure fuel system?
While this adapter is high quality, you must ensure the hose barb end, hose itself, and clamp are rated for the specific pressure of your system. For very high pressures, a full AN or hard-line solution may be preferable.
Is the fitting reusable if I switch hoses later?
Yes, the adapter can be reused so long as the sealing surfaces (O-ring, boss threads) are maintained and the hose barb is still in good condition. Re-clamp the hose properly if removed and reused.
Does this product require any special installation tools?
No special tools beyond typical AN fitting wrenches and hose clamp tools are needed. Make sure to lubricate the O-ring prior to insertion and torque the O-ring boss to proper spec for best results.
