• Top Street Performance Aluminum 1/2" NPT to 3/4" Hose Barb Heater Hose Fitting - for street and performance builds
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Top Street Performance

Aluminum 1/2" NPT to 3/4" Hose Barb Heater Hose Fitting

Aluminum 1/2" NPT to 3/4" Hose Barb Heater Hose Fitting

SKU: SP9125

$8.00
$8.00 $8.80
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Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.

Product Details

Features

  • Straight aluminum fitting adapts a 1/2" NPT coolant port to 3/4" hose
  • 2 7/8" length suits clean heater hose routing at the port
  • Designed with Chevy V8 water pump coolant ports in mind
  • Satin finish holds up to coolant exposure and underhood heat

Description

This 1/2" NPT to 3/4" hose barb fitting connects a 1/2" NPT coolant port to a 3/4" heater hose. The straight satin aluminum fitting measures 2 7/8" overall, built for clean heater hose routing on compatible intake manifold and water pump coolant ports.

Use it for heater hose service, cooling system assembly, intake manifold plumbing, water pump hose connections, or engine swap coolant routing. While this fitting can be used for many applications, it was designed with Chevy V8 water pumps in mind. Confirm NPT thread engagement, hose inside diameter, clamp selection, and coolant hose clearance before installation, and use thread sealant compatible with coolant.


Applications
Designed with Chevy V8 water pump coolant ports in mind, though usable in other applications with a matching 1/2" NPT port. Common on Chevrolet small block and big block V8 hot rods, muscle cars, trucks, and engine swap builds with matching 1/2" NPT coolant ports.

Installation
Straight fitting, 2 7/8" length. Use thread sealant compatible with coolant. Verify hose inside diameter (3/4"), NPT thread engagement, clamp selection, and coolant hose clearance before installing.

Specs

Fitting Material Aluminum
Fitting Finish Satin
Fitting Angle Straight
Length 2 7/8"
Size 1/2" NPT to 3/4" Hose Barb

Engine Fitment

COMPATIBLE WITH
While this fitting can be used for many applications, it was designed with Chevy V8 water pumps in mind

NOTES
Use thread sealant compatible with coolant and verify hose inside diameter before installation.

COMMON VEHICLE APPLICATIONS
Chevrolet small block and big block V8 hot rods, muscle cars, trucks, and engine swap builds with matching 1/2 in. NPT coolant ports

Q&A

What size hose does this fitting use?
3/4" hose barb, connecting to a 1/2" NPT coolant port.

Will this fit my Chevy water pump?
It's designed with Chevy V8 water pump coolant ports in mind, but confirm your port is 1/2" NPT before ordering.

Can I use this for something other than a Chevy water pump?
Yes — this fitting works with any 1/2" NPT coolant port with a 3/4" hose, not just Chevy water pump applications.

Do I need thread sealant?
Yes — use a thread sealant compatible with coolant when installing this fitting.

What's the overall length of this fitting?
2 7/8".

What's this fitting made of?
Aluminum with a satin finish.

Emissions Notice

This product does not affect vehicle emissions and is not subject to emissions compliance regulations.