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Description
MerCruiser 1351-5203A1 Rochester Carburetor 2BBL Carb 140hp 3.0L 4cyl 1972-1978Item Details MerCruiser 1351 5203A1 1351 5203 Rochester 2 Jet 2BBL Carburetor Assembly Bowl Number 7043184 GM Rochester 2 Jet 2 barrel carburetor assembly Generally found on MerCruiser GM 3. 0L 140hp 4cyl engines 1972 1978 (Serial Number 3771645 & UP Specifically) which is basically 1973 1978 Not Compatible with applications that used MerCarb Used for MerCruiser Chevy GM 140hp 3. 0L applications from 1979 1982 That used ROCHESTER carburetors The
Item Details
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MerCruiser 1351-5203A1 / 1351-5203 Rochester 2 Jet 2BBL Carburetor Assembly
- Bowl Number 7043184
- GM Rochester 2-Jet 2-barrel carburetor assembly Generally found on MerCruiser GM 3.0L 140hp 4cyl engines 1972-1978 (Serial Number 3771645 & UP Specifically) which is basically 1973-1978
- Not Compatible with applications that used MerCarb
-
Used for MerCruiser Chevy GM 140hp 3.0L applications from 1979-1982 That used ROCHESTER carburetors
- The MERCARB carburetors were used in the mid-late 80s and will are not interchangeable with Rochester carburetors as the mounting plate bolt pattern is different.
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Visually it looks in great shape, but may need to be cleaned or gone through and maybe rebuilt before installation.
- This would be an item I would recommend to just try and install it first, and if you are still having issues, just rebuild it with a fresh kit. We have Included Sierra Rebuild Kit 17-7746 for this reason.
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Other details to take note of...
- This used an engine warm up tube rather than an electric choke found on newer models.
- Throttle Linkage plate type (yours should look the same)
- Fuel input fitting / orientation
- Freshwater used part
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4.3 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 4
It does exactly what they say it does! Worth the money
Color: A1-Red
It arrived quickly. It’s a fun toy! It’s the right size for cats. Definitely worth the money. It is exactly as described. So far, the quality seems very good and it seems durable. The instructions are on the side of the box, which makes learning how to operate it easy. I love it that it’s red, because my kitty seems to be attracted to red. My kitty is very interested in it, yet isn’t quite sure what to think of it. I love that it changes directions on its own so that it doesn’t get stuck or lost under furniture, which is typical for a ball that cats play with. It seems to only go two, three or four feet in one direction and then it changes directions, which is both good and bad. I just wish it would go farther in one direction before changing directions so that my kitty could chase it farther, as we have plenty of space in our house for her to run. But that certainly could be a plus for other cats, enjoying not knowing where the ball is going to go next and really keep them on their toes.
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Reviewed in the United States on January 20, 2026
★★★★★ 5
Cat loves this
Color: A1-Red
This toy is great for keeping pets entertained. The ball moves quickly and the tail makes it even more fun for cats to chase. It’s rechargeable and easy to use, and my pet stayed interested much longer than with regular toys.
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Really cool cat toy for even the most picky cat!
Color: A1-Red, Color: A1-Red
I love it, wow. Our cat is picky with toys, but even he was intrigued by it. It really kept his attention, which is hard to do. It comes with three modes: fast, slow, and interactive. The only thing is that hair can get all trapped up in it because it's a wheel, so keep your house clean I guess lol. The tail also came off once, so you gotta snuggly get it on up there. Really cool cat toy though, I'm happy I got it lol
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Reviewed in the United States on February 23, 2026
★★★★★ 1
Not worth the money
Color: A1-Red
My small Chihuahua loved this toy. It kept him entertained until it would stop working. He only gets about 10 minutes of play and it's no longer charged to use. I even bought a second one thinking the first one might have been just bad luck, but nope, the same problem. It seems most of these interactive toys are only given 2 to 3 stars. I'm disappointed but more importantly, my pup is even more.
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Reviewed in the United States on March 24, 2026
★★★★★ 5
Terrific product
Color: A1-Red
I adopted a 2 year old cat - she’s not much for a lot of the toys I have purchased for her, until this one! At first she seemed very cautious with it - but still followed it around - once I slowed it down (a few different options) she loves to play with it! Great purchase very pleased with it
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Reviewed in the United States on March 6, 2026