SKU: 92791278732

Robertshaw hi flow balanced sleeve thermostat for Gen 3 5.7L Hemi c.2003-2008

Sale price$33.30 Regular price$37.00
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Description

Robertshaw hi flow balanced sleeve thermostat for Gen 3 5.7L Hemi c.2003-2008Robertshaw thermostats do not fit all makes and models but we have modified the flange diameter to 2. 48" so they fit the 6. 2L Hellcat, 392 6. 4L, 6. 1L, and the 5. 7L Gen III Hemi engines. Why? Conventional thermostats for these engines open to 1. 36" but Robert shaw opening diameter is 15% greater to allow more fluid to pass through the heat exchanger (radiator) and cool the engine. You get more than just flow though. Robertshaw's unique three port

Robertshaw thermostats do not fit all makes and models but we have modified the flange diameter to 2.48" so they fit the 6.2L Hellcat, 392 / 6.4L, 6.1L, and the 5.7L Gen III Hemi engines.  Why?  Conventional thermostats for these engines open to 1.36" but Robert shaw opening diameter is 15% greater to allow more fluid to pass through the heat exchanger (radiator) and cool the engine.

You get more than just flow though.  Robertshaw's unique three port construction or "balanced sleeve" design equalizes the system pressures above and below the thermostat’s moving valve. Therefore the thermostat is pressure balanced and will respond to system temperatures only. No other thermostat does this.

Other Features of a Robert Shaw Thermostat:

1) Stress-free construction. Robertshaw makes the thermostat's strut assembly from  stainless steel using a technique to permit two brads per strut. Other manufacturers forcefully attach the struts to the housing with intense, metal-weakening pressure on the struts, binding each strut in only one spot.

2) The Power Pill®. This is the heart of a Robertshaw thermostat. It detects minute changes in the temperature of the coolant, and quickly activates a precision-engineered stem or piston to open and close the thermostat valve.

3) One-piece bypass poppet. With other thermostats, the bypass valve stem is welded on. The weld tends to fail under stress. To eliminate this problem, Robertshaw manufactures the entire copper cup and bypass stem from a single piece of metal.

4) Short-stroke piston. In conventional thermostats, the piston must make a large stroke to open the thermostat far enough for adequate coolant flow. But the long stroke compromises durability. Robertshaw engineers achieved a shorter stroke with a uniquely-designed flange and poppet. This design increases the longevity of the thermostat, yet still allows adequate coolant circulation.

5) Contoured strut. Making the strut assembly from brass instead of steel provides another benefit: brass, being more malleable than steel, can be precisely formed to maximize coolant flow.

6) Uniform quality. Robertshaw builds all thermostats to OEM standards -- so your replacement thermostat is identical to those used in new Fords, Chryslers, and other cars. The Power Pill At the heart of a Robertshaw thermostat is the power pill. Its job: to detect minute changes in the temperature of the coolant, and to quickly activate a precision-engineered piston that opens and closes the thermostat valve. Compared to the thermal elements in some thermostats, Robertshaw's Power Pill® has major advantages:

1) Rapid response. The Power Pill's piston is activated by a temperature-sensitive mixture of metallic powder and wax. Some thermostats use an all-wax charge, which responds slowly to temperature changes. Other brands mix copper powder with the wax for faster response, but the copper quickly separates from the wax. Robertshaw developed a process to maintain suspension of the copper powder in the wax, so the fast response doesn't deteriorate and the thermostat will not "stick-open" to cause the engine to run cool.

2) Reliable performance. Most manufacturers use a one-piece rubber diaphragm to seal the charge and drive the piston. If the rubber part ruptures, the thermostat fails. Robertshaw uses two separate parts: a diaphragm to seal the wax, and a stem seat or plug that drives the piston. Rubber material for each part is formulated especially to meet each part's unique requirements. Wear or damage to the stem seat still allows the thermostat to operate satisfactorily.

3) Precise performance. Every Robertshaw Power Pill is calibrated to bring the thermostat's start-to-open temperature within strict tolerances.

Thermostat Applications
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SKU: 92791278732

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shellz
Lake Worth, US
★★★★★ 3
Poor quality
Color: Grey
Temporary fix, poor quality, get what you pay for.
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Reviewed in the United States on November 22, 2025
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Verified Purchase
DDnOC
Phoenix, US
★★★★★ 5
Good Multi-use Panels
Color: Grey
These panels were easy to assemble and stand sturdy. i will use them to block the sun when I am outside doing yard work in the heat. I'm sure I will find other uses for them too.
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Reviewed in the United States on November 14, 2025
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Verified Purchase
Jennifer Dumond
Massapequa, US
★★★★★ 1
We threw it away
Color: Grey
This thing cannot stand on its own, the side bars bend since it is not sturdy enough to handle the material screens. After assembly, I was so mad at it, the pleasure of crushing it was better than returning it. I tryed to think of other ways to use it, but could not… i kept the screens, they are the strongest part of this thing. Very disappointing
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Reviewed in the United States on August 31, 2024
S
Verified Purchase
SM Gibbons
Grantham, US
★★★★★ 3
Works well
Color: Beige
Does the trick for privacy and some noise blockage. This takes two people to put together. The construction make it easy to assemble, but makes it just as easy to come apart on its own.
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Reviewed in the United States on July 27, 2025
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C.L.
Chelsea, US
★★★★★ 5
Excellent privacy shade.
Color: Coal Black
This delivered on exactly what it promises. So happy with the quality for the value. The shades are a fabric, nylon like, that are attached with a pocket on one end and velcro that adheres around the bar on the other. This was incredibly easy and straightforward to put together. Every piece was clearly labeled, coordinated with the instruction sheet, and fit perfectly. Honestly, I wasn’t planning to leave a review but I was so impressed by how clearly labeled and well explained the instructions were that I felt compelled to note it. Especially for anyone who doesn’t like putting things together, or is used to subpar instructions, this is leagues above the rest. It’s such a simple build anyway, but after buying so many things that barely fit as they should, this stands out. It is lightweight and easy to move. Offers privacy when opened, then can be folded out of the way. It looks exactly as pictured. No complaints, it’s a solid item and worth the price.
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Reviewed in the United States on April 9, 2026

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