SKU: 57201413516

Robertshaw 333 Series hi flow balanced sleeve thermostat

Sale price$35.96 Regular price$39.95
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Description

Robertshaw 333 Series hi flow balanced sleeve thermostatThe Robertshaw 333 series thermostat has the distinction of being the only available thermostat that would accommodate the 351 Cleveland Controlled bypass system*. A 351C provided greater water flow in the engine for a faster, more even warm up without creating hot spots (particularly in the valve area). The bypass design controlled the water flow and temperature with less cycling and increased the flow to the radiator for improved cooling

The Robertshaw 333 series thermostat has the distinction of being the only available thermostat that would accommodate the 351 Cleveland Controlled bypass system*.  A 351C provided greater water flow in the engine for a faster, more even warm-up without creating hot spots (particularly in the valve area). The bypass design controlled the water flow and temperature with less cycling and increased the flow to the radiator for improved cooling performance.   It was an ideal solution for overheating 351C found in mustangs and hot Panteras. 

The OE Robertshaw thermostats for the OE bypass is available again.  Its made in the USA.  Yes this is a real Robertshaw 333 series.  If you want 160 degree alternative, consider the 333-substitute

The substitute performs the same preheat function but we resized the bypass hole for more temperature options.  

*The 400 and 351M had this feature cast into the block and did not utilize this brass bypass insert.  The cast bypass hole requires the 333 series.

Year Make Model Eng CID VIN
1978-1979 FORD BRONCO V8 351 H
1984 FORD BRONCO V8 351 H
1970-1971 FORD COBRA V8 351 M
1971 FORD COBRA V8 351 H
1970-1974 FORD COUNTRY SEDAN V8 351 H
1972-1974 FORD COUNTRY SEDAN V8 400 S
1970-1974 FORD COUNTRY SQUIRE V8 351 H
1979 FORD COUNTRY SQUIRE V8 351 H
1972-1974 FORD COUNTRY SQUIRE V8 400 S
1975-1976 FORD COUNTRY SQUIRE V8 400 S
1970-1972 FORD CUSTOM V8 351 H
1972 FORD CUSTOM V8 400 S
1970-1974 FORD CUSTOM 500 V8 351 H
1976-1977 FORD CUSTOM 500 V8 351 H
1972-1974 FORD CUSTOM 500 V8 400 S
1975-1977 FORD CUSTOM 500 V8 400 S
1976-1979 FORD E-100 ECONOLINE V8 351 H
1976-1979 FORD E-150 ECONOLINE V8 351 H
1980-1984 FORD E-150 ECONOLINE V8 351 G
1976-1979 FORD E-250 ECONOLINE V8 351 H
1980-1984 FORD E-250 ECONOLINE V8 351 G
1984 FORD E-250 ECONOLINE V8 351 H
1981 FORD E-250 ECONOLINE V8 400 Z
1976-1979 FORD E-350 ECONOLINE V8 351 H
1980-1984 FORD E-350 ECONOLINE V8 351 G
1981-1982 FORD E-350 ECONOLINE V8 400 Z
1977-1979 FORD F-100 PICKUP V8 351 H
1981 FORD F-100 PICKUP V8 351 G
1978-1979 FORD F-100 PICKUP V8 400 S
1977-1978 FORD F-150 PICKUP V8 351 H
1978-1979 FORD F-150 PICKUP V8 400 S
1979 FORD F-150 PICKUP V8 351 H
1981-1984 FORD F-150 PICKUP V8 351 G
1984 FORD F-150 PICKUP V8 351 H
1977-1979 FORD F-250 PICKUP V8 351 H
1980-1984 FORD F-250 PICKUP V8 351 G
1984 FORD F-250 PICKUP V8 351 H
1978-1979 FORD F-250 PICKUP V8 400 S
1981-1982 FORD F-250 PICKUP V8 400 Z
1978-1979 FORD F-350 PICKUP V8 351 H
1980-1984 FORD F-350 PICKUP V8 351 G
1978-1979 FORD F-350 PICKUP V8 400 S
1980-1982 FORD F-350 PICKUP V8 400 Z
1970 FORD FAIRLANE V8 351 H
1970 FORD FAIRLANE V8 351 M
1970 FORD FALCON V8 351 M
1971-1974 FORD GALAXIE 500 V8 351 H
1972-1974 FORD GALAXIE 500 V8 400 S
1972-1974 FORD GRAN TORINO V8 351 H
1976 FORD GRAN TORINO V8 351 H
1972-1974 FORD GRAN TORINO V8 351 Q
1972-1974 FORD GRAN TORINO V8 400 S
1975-1976 FORD GRAN TORINO V8 400 S
1976-1977 FORD GRANADA V8 351 H
1970-1974 FORD LTD V8 351 H
1976-1979 FORD LTD V8 351 H
1972-1974 FORD LTD V8 400 S
1975-1978 FORD LTD V8 400 S
1978-1979 FORD LTD II V8 351 H
1977-1978 FORD LTD II V8 400 S
1971-1973 FORD MUSTANG V8 351 H
1970-1971 FORD MUSTANG V8 351 M
1972-1973 FORD MUSTANG V8 351 Q
1970-1974 FORD RANCH WAGON V8 351 H
1972-1974 FORD RANCH WAGON V8 400 S
1975-1976 FORD RANCH WAGON V8 400 S
1970-1974 FORD RANCHERO V8 351 H
1976-1979 FORD RANCHERO V8 351 H
1970-1971 FORD RANCHERO V8 351 M
1972-1974 FORD RANCHERO V8 351 Q
1973-1974 FORD RANCHERO V8 400 S
1975-1978 FORD RANCHERO V8 400 S
1978-1979 FORD THUNDERBIRD V8 351 H
1977-1978 FORD THUNDERBIRD V8 400 S
1970-1974 FORD TORINO V8 351 H
1976 FORD TORINO V8 351 H
1970-1971 FORD TORINO V8 351 M
1972-1974 FORD TORINO V8 351 Q
1973-1974 FORD TORINO V8 400 S
1975-1976 FORD TORINO V8 400 S
1978-1979 LINCOLN CONTINENTAL V8 400 S
1978-1979 LINCOLN MARK V V8 400 S
1971-1973 MERCURY COLONY PARK V8 351 H
1979 MERCURY COLONY PARK V8 351 H
1972-1976 MERCURY COLONY PARK V8 400 S
1971-1974 MERCURY COUGAR V8 351 H
1975-1979 MERCURY COUGAR V8 351 H
1970-1971 MERCURY COUGAR V8 351 M
1972-1974 MERCURY COUGAR V8 351 Q
1974-1978 MERCURY COUGAR V8 400 S
1971 MERCURY CYCLONE V8 351 H
1970-1971 MERCURY CYCLONE V8 351 M
1979 MERCURY GRAND MARQUIS V8 351 H
1976-1978 MERCURY GRAND MARQUIS V8 400 S
1972-1973 MERCURY MARQUIS V8 351 H
1978-1979 MERCURY MARQUIS V8 351 H
1972-1978 MERCURY MARQUIS V8 400 S
1976-1977 MERCURY MONARCH V8 351 H
1971-1974 MERCURY MONTEGO V8 351 H
1975-1976 MERCURY MONTEGO V8 351 H
1970-1971 MERCURY MONTEGO V8 351 M
1972-1974 MERCURY MONTEGO V8 351 Q
1973-1976 MERCURY MONTEGO V8 400 S
1971-1973 MERCURY MONTEREY V8 351 H
1972-1974 MERCURY MONTEREY V8 400 S
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SKU: 57201413516

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Cecy Melero
Lake Worth, US
★★★★★ 4
amazing
Format: Kindle
Knot the Bride was a fantastic read! The characters were all amazing and well-developed. It was easy to like them all. Sophia, Luca, Nick, and Gavin were all perfect for each other. It was such a charming story that had me hooked the entire time. I did wish there were POVs from Luca, Nick, and Gavin but it was still an amazing book without it. I am excited to read the next book in the Willowside Omegaverse series! This is definitely a must-read for fans of omegaverse romance!. I received a free copy of this book and am voluntarily leaving a review.
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Reviewed in the United States on April 25, 2025
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Tara
Port Orchard, US
★★★★★ 3
3 Star Read,
Format: Kindle
This book wasn't bad, but wasn't my cup of tea. It's highly disappointing because the storyline is so original. There is no real conflict or resolution, so the entire thing feels flat. As a lover of omegaverse books, I know there is a ton of variety out there, and ov is really up to the author. But this one is weird. Omegas have multiple scent glands all over their bodies and go into week long heats every month. Alphas have knots in the middle of their shaft instead of the base, and the knot doesn't always swell, no explanation of when or why. It doesn't engage at all when the mouth is in play. I also didn't enjoy the author's writing style. Each paragraph is only 1 or 2 sentences long, and the entire book reads very stacato. The conversations are stiff and unnatural feeling. Everything is very repetitive, both in word choice and in thought. The same thing is repeated 3 or 4 times over a single page, multiple times over. I ended up doing so much skimming. The first 50% of the book is all slow burn, and the last 50% is almost straight mediocre spice. This wouldn't have been all bad if the grammar and spelling errors didn't start at the exact same time. Tongue is repeatedly misspelled in the middle of the spice.
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Reviewed in the United States on September 14, 2024
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Debby & Brian
Fort Morgan, US
★★★★★ 5
Cozy Omegaverse
Format: Kindle
This is the true definition of Cozy Omegaverse. LA wedding coordinator meets her pack at the location for a couple’s destination wedding. Low angst because they are scent matched high heat with heats and knots. Everything you love about this genre with very little anxiety. Simply a fun experience to read and a book I will comeback to when I’m in a slump. I simply love reading this book
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Reviewed in the United States on March 19, 2026
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Iputmybookdownforthis
Massapequa, US
★★★★★ 4
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3.75 stars and 2 for spice. Adorable Omegaverse story about a wedding planner who has to go to a small town to plan a wedding for a movie star. While there, she meets her pack. This covers her struggles of not living there but trying to keep her relationship going with her 3 Alphas. It's a quick read and cute, so I recommend it for people who like light-hearted RH stories.
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Reviewed in the United States on May 31, 2025
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Dani
San Leandro, US
★★★★★ 3
real good
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This was a solid read for the ABO universe. The characters are great. The smut scenes were well written. And the town is so cute I want to go there. It didn’t have much character development it just felt like I was getting to the characters as they were getting to know each other.
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Reviewed in the United States on April 27, 2025

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