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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4.1 ★★★★★
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ktk
Chelsea, US
★★★★★ 5
Will Buy Again--Eventually as they are hearty
My dog loves these "trash babies" as the size, squeaker & trash /cellphane sound the crinkle toy makes brings her joy. this brings me joy as the stitching is hearty and toys hold up when cleaned in my washing machine & dryer. Her first trash baby is still going strong after a year tho the crinkle sound has dimminshed some the sweaker is good as new. I bought these to rotate to wash and keep a new one for travel. Very durable! good size for my 20 pound mini aussie.
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Reviewed in the United States on June 1, 2026
S
Verified Purchase
Sunshine
Louisville, US
★★★★★ 5
Cute, big enough and top notch quality
These are SO CUTE! The look exactly like the pictures so I am really glad about that. They are quite substantial in size, big enough. See pics :). I gift one of three to my friend's dog. The texture is soft and boucle like and soothing for me and the doggos! The squeakiness is very prominent but not present in all parts of the toy - so its annoying. I am also glad these have no stuffing because they look great as is and lack of the stuff make them easy to chew on. The cuteness got me on this one and I may repurchase again, if need be.
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Reviewed in the United States on October 2, 2025
D
Verified Purchase
D. Ross
Bozeman, US
★★★★★ 4
No mess toys
My chiweenie ripped out the squeaker in 5 minutes. Other than that they are good toys. No mess.
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Reviewed in the United States on June 2, 2026
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Denise carlson
Lowell, US
★★★★★ 5
Very nice
Super cute, my pups love them.
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Reviewed in the United States on May 24, 2026
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Lisa D.
Louisville, US
★★★★★ 3
not very long lasting
I like the fact that they have no stuffing. My 20-pound dog chewed through these in no time and got the squeaker out and tried to eat it. My dog enjoyed tearing it apart. I had to chase him around to get the squeaker out of his mouth. The size is great for a medium sized dog. However, it lasted only minutes before it was ruined.
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Reviewed in the United States on June 4, 2026

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