Accessories - Jet Header Water Control

Tunable Stainless Steel Header Water Pressure T-Valve

The Hardin Marine T-Valve is a spring/ball style water flow check valve designed to control the flow and time of release of the water into water injected exhaust headers thus rendering the headers dryer and hot at an idle when properly adjusted and allow water flow at the appropriately tuned higher engine RPM's.

By adjusting a boats water inlet or exit you can control the water pressure that is feed to the T valve. The unique advantage of the Hardin Marine tee valve is that it features threaded exits ports. This thread allows use of optional brass tuning jets (Sold Separately) for additional control of the amount of water flow you may desire for your particular application.

The optional brass water jets are available with a 0.100 orifice and can be drilled out to allow additional water flow if so desired. This T-Valve accepts 2 brass water jets. The 316L premium grade stainless steel tee valve features -8AN or (3/4X16UNJ thread) connections. Also replaces #BR-TVALVE-73.

Restrict your water flow as necessary with these Restrictors (Sold Separately). NO LONGER will you need to drill and tap fittings for water restriction!

Cast Stainless Steel Header Water Pressure T-Valve

The T-Valve is a spring/ball style water flow check valve designed to control the flow and time of release of the water into water injected exhaust headers thus rendering the headers dryer and hot at an idle when properly adjusted and allow water flow at the appropriately tuned higher engine RPM's. -8 AN Male Ports

HP Spring For Header Water Pressure T-Valve

This stainless steel spring is designed to open up the T-Valve at a 12 PSI rather the 6 PSI of the standard spring that comes is Pressure T-Valves. Used in HP applications.

Replacement T-Valve Ball

Designed to fit 210-16123 T-Valve. Also used in Hardin Sand Strainers.

Check Ball and Spring For Header Water Pressure T-Valve

These are the internal components to the Header Water Pressure T-Valve Both parts are manufactured from stainless steel

• Polished Billet Aluminum Construction.
• 1/4" NPT female pipe thread on the inlet and outlet.
• Easy Manual Control of water flow through headers.
• 4 Positions.

Replacement Header Lines for Most Water Injected Headers

These are replacement water injection lines designed to work as replacements for missing or damaged lines on most water injected header applications on 8 cylinder engines. These kits include easy bend cupronickel tubing with a centrally mounted intake block. Each intake block contains 4 ports for each individual line and a female 1/2" NPT port for water intake from your pressure T-Valve (adapters sold separately). The kit includes 4 short, 4 long lines, 2 intake blocks and 8 fittings for the intake blocks. This will allow for building replacement lines on 2 headers or 1 engine. Header mounted fittings are not included. Please note: This is a do it yourself kit, you will have to bend the tubing to the appropriate shape for your headers. Returns will not be accepted on any kits with bent tubing.

Replacement Header Lines for Chevy / Ford 11000 Series V-Drive Water Injected Headers. These are non-returnable. OEM #BR-LINES-133.

Replacement Header Lines for Chevy / Ford 14000 "Twist" Series Jet Water Injected Headers. These are non-returnable. OEM #BR-LINES-134.

Replacement Header Lines for Oldsmobile 12000 Series Jet Water Injected Headers. These are non-returnable. OEM #BR-LINES-122.

This .100 jet is used when you just have to much water flow going to your headers. Can be drilled out to larger size. This jet will limit flow. The jet is installed by threading into pre-threaded Hardin Tee Valve.

Note: This is designed to fit Late Model Hardin Marine Pressure Tee Valve, otherwise you will have to drill and tap your fitting to accommodate. 7/16"-28 Thread. The Hardin tee value uses 2 of these, they are Sold Each, NOTE Photo is not the exact product, just an approximation.

Brass Water Injection Fitting For Headers

Fitting is:
• 1/8" NPT by -3 Thread

These are replacement water injection fittings designed to screw into each header tube so that you can attach the water injection lines.
This part is sold each.

Brass Water Injection Fittings For Headers

Fittings are:
• 1/8" NPT by -3 Thread

These are replacement water injection fittings designed to screw into each header tube so that you can attach the water injection lines.
This part is sold as a package of 8