{"id":483,"date":"2026-09-29T00:39:41","date_gmt":"2026-09-28T16:39:41","guid":{"rendered":"http:\/\/www.noreensketokitchen.com\/blog\/?p=483"},"modified":"2026-09-29T00:39:41","modified_gmt":"2026-09-28T16:39:41","slug":"how-many-impellers-do-the-water-pumps-in-the-roewe-automobile-water-pump-series-have-4c64-d70f07","status":"publish","type":"post","link":"http:\/\/www.noreensketokitchen.com\/blog\/2026\/09\/29\/how-many-impellers-do-the-water-pumps-in-the-roewe-automobile-water-pump-series-have-4c64-d70f07\/","title":{"rendered":"How many impellers do the water pumps in the Roewe Automobile Water Pump Series have?"},"content":{"rendered":"

Hey folks, let\u2019s cut to the chase\u2014if you\u2019re here, odds are you\u2019re either a Roewe mechanic, a fleet manager triaging coolant leaks, or maybe even someone who\u2019s deep in the weeds of the auto parts supply chain, looking for solid, actual specs on Roewe\u2019s water pumps. For the past 7 years, I\u2019ve run a small but tight-knit supply shop that specializes only<\/em> in the Roewe Automobile Water Pump Series\u2014no random off-brand stuff, no junk that falls apart after 10k miles. I get DMs, calls, and even in-person visits every single day asking one specific question that\u2019s way more loaded than it sounds: \u201cHow many impellers do the water pumps in this series actually have?\u201d Roewe Automobile Water Pump Series<\/a><\/p>\n

<\/p>\n

I know what you\u2019re thinking\u2014this is just a tiny, boring mechanical detail, right? Nah. Trust me, impeller count is the backbone of how these pumps perform. Too few, and your engine overheats when you\u2019re stuck in traffic or hauling a load. Too many, and you\u2019re wasting energy, guzzling extra fuel, and putting unnecessary wear on the timing belt that\u2019s connected to the pump. I\u2019ve seen guys waste thousands on mis-sourced pumps because they got the impeller count wrong, so I\u2019m gonna break this down straight, no corporate fluff, just what I\u2019ve learned from stocking, testing, and selling these pumps nonstop for 7 years.<\/p>\n

First, let\u2019s get one thing clear: the Roewe Automobile Water Pump Series isn\u2019t a one-size-fits-all line. It\u2019s split into three core groups, based on the model year and the specific Roewe line they\u2019re built for\u2014Roewe 350, 550, and RX5, mostly, with a few niche models thrown in like the i5 and ei6. Each of those groups has its own impeller spec, and that\u2019s where 90% of the confusion comes from. A lot of old forum posts or even generic auto parts sites mix up the 550 and RX5 specs, so let\u2019s set that straight right now.<\/p>\n

Starting with the oldest group: the Roewe 350 and early 550 pumps, made for models from 2008 to 2015. These are the pumps I cut my teeth on when I started this business\u2014when I first opened, 90% of my orders were for 350s, so I must have handled 1,200+ of these things in my garage back then. I\u2019d take a handful apart every month just to test wear, because back then, I was still learning the quirks of Roewe parts. The impeller count here? Exact 6. Not 5, not 7\u20146. I remember the first time I counted, I grabbed three random 350 pumps from my stock, peeled the housing off, and laid each impeller set on my workbench. Yep, 6 every single time. Why 6? The engineers at SAIC (Roewe\u2019s parent, for anyone who doesn\u2019t know) designed these pumps for consistent low-speed coolant flow for their smaller, 1.5L and 1.8L naturally aspirated engines. 6 blades mean they move just enough coolant to keep the engine from overheating in stop-and-go, but not so much that they add friction\u2014back then, fuel efficiency was a big selling point for the 350, so they tuned every part to balance performance and cost.<\/p>\n

Wait, but hold on\u2014there\u2019s a catch here. A lot of people confuse impeller blades with impeller \u201csegments,\u201d right? Some cheap eBay listings will show a pump and count each little nub as a blade, but no\u2014we\u2019re talking about actual, curved, molded blades that scoop coolant. I\u2019ve seen a couple of counterfeit 350 pumps on my shelf that claimed 6 blades, but only had 5 functional ones; they missed the sixth one near the hub, so they\u2019d leak after 8k miles. That\u2019s why I always tell my regulars: never buy a pump that doesn\u2019t come with OEM or aftermarket certification that matches the spec. The real Roewe 350 pump impellers are made from reinforced nylon, too, not flimsy plastic\u2014they\u2019re rigid enough to handle high RPM without warping, which is why they hold up for 80k+ miles if you change your coolant every 2 years like you should.<\/p>\n

Next group: the mid-series, for the 2015 to 2020 Roewe 550 and RX5, mostly with the 1.5T turbo engine. These pumps blew up in popularity because the RX5 was one of Roewe\u2019s first mass-market SUVs that sold like hotcakes in China and even a few export markets. I can\u2019t even count how many I sold in 2018\u2014like 400 in 6 months. The impeller count here is 9. That\u2019s a big jump, and it\u2019s all because of the turbo engine. Turbos run way hotter than naturally aspirated motors, and they need consistent, high-volume coolant flow to keep the turbocharger from seizing up. I tested this firsthand last year\u2014two RX5s came into my shop with overheating issues, same year, same mileage, same coolant flush. One had a 550-series pump with 9 impellers, the other was a cheap off-brand knockoff I sold to a friend last year (my bad). The knockoff only had 7 impellers, and the turbo ran 20 degrees hotter after 30 minutes of highway driving. That\u2019s the proof right there. The 9 impellers don\u2019t just move more coolant\u2014they distribute it more evenly around the engine block, which is crucial for turbo models, especially if you\u2019re hauling or towing.<\/p>\n

I will say, this is where a lot of people get tripped up. Some modified RX5 owners will swap to 11-impeller pumps, thinking more is better, but that\u2019s a mistake. The Roewe ECU is tuned to work with the 9-impeller pump\u2019s flow rate. Add more blades, and you\u2019re putting extra strain on the water pump shaft, which can lead to bearing failure at 40k miles instead of 80. I\u2019ve had three guys come back to me last year with that exact problem\u2014they upgraded to 11-impeller pumps, and their timing belt went out early because of the extra load. Always stick to the spec for your specific model year, no shortcuts.<\/p>\n

Now the third group: the newer pumps, for the 2021+ Roewe i5, ei6, and the updated RX5 Plus. These are the electric or hybrid models, right? I launched this part of my inventory in 2021, and it\u2019s been growing every year because Roewe\u2019s hybrid line is super popular for commuters. The impeller count here is 8. Let\u2019s talk about why that\u2019s different. Hybrid engines run at a much more consistent temperature than gas-only engines\u2014they don\u2019t rev as high, they don\u2019t have turbos spiking heat, so the pump doesn\u2019t need as much volume, but it does need precision. The 8 impellers are designed for hybrid-specific cooling, which is split between the engine and the battery pack, right? Oh, right\u2014these newer pumps handle both engine coolant and battery thermal management, so their impeller shape is a little different too, not just the count. I took one apart last month to show a guy who thought I was overcharging him\u2014laid the two sets of impellers side by side: 8 curved blades optimized for low, steady flow, not the high-lift blades on the turbo pumps. The hybrid pumps also have a variable speed control, so the impellers adjust their speed based on battery temperature, not just engine RPM\u2014so the 8 count is perfect for balancing flow and energy use, which keeps the battery from dying too fast.<\/p>\n

Wait, but let\u2019s get real\u2014why is this info even so important? I get it, if you\u2019re just driving a 350 to work, you might not care how many impellers are under the hood, until your pump seizes up and leaves you stranded on the side of the highway. Last year, a guy pulled up to my shop in a 2012 350, smoke pouring out the hood, towing a U-Haul. Turns out he\u2019d bought a pump from a random auto parts store online that claimed it was for a 350, but it had 7 impellers. The extra blade made the pump spin too fast, stripped the bearing, and seized the timing belt. He ended up needing a whole new engine, not just a pump\u2014cost him $4,200, and he told me he\u2019d spent $150 on the wrong pump. That\u2019s the kind of mistake you avoid when you know the actual impeller specs for your exact Roewe model.<\/p>\n

As a supplier, I don\u2019t cut corners. Every single pump I sell is tested for impeller count, blade rigidity, and flow rate before it hits my shelf. I keep a spreadsheet of every order I\u2019ve placed over the last 7 years, so if you call me and say you have a 2017 RX5, I can pull up the exact pump you need, down to the impeller spec, no guessing. I also do free impeller count checks for anyone who brings a pump to my shop\u2014no strings attached, I just hate seeing people get scammed by cheap knockoffs.<\/p>\n

A lot of new customers ask me, \u201cCan I mix impeller counts? Like, put a 9-impeller pump in a 350?\u201d No. The 350\u2019s engine is tuned for the 6-impeller flow rate. A 9-impeller pump moves too much coolant, which causes the engine to run colder than it should, leading to carbon buildup in the cylinders, worse gas mileage, and even heater core issues in the winter. I had a customer do that in 2019, his 350\u2019s heater never got warm again, even after flushing the core. It took him a year to figure out the wrong pump was the problem, and he ended up buying the right 6-impeller one from me.<\/p>\n

Also, let\u2019s talk about counterfeit pumps, because that\u2019s a huge issue right now. I get 2-3 emails a week from people who bought a \u201cRoewe pump\u201d from Amazon or Alibaba, and when they open it, the impeller count is wrong, or the blades are made of thin plastic that cracks after a month. The real Roewe Automobile Water Pump Series pumps have a part number etched into the housing that matches the impeller count: for 350s, it\u2019s C00000067, which is paired with 6 impellers; for the 2015-2020 RX5\/550, it\u2019s C00055566, paired with 9 impellers; for 2021+ hybrids, it\u2019s C00089721, paired with 8 impellers. I write those part numbers on every invoice I give, so customers can cross-check them with the OEM specs.<\/p>\n

Here\u2019s the thing: I\u2019m not a big corporate supplier with a million locations. I\u2019m a guy who started this in my garage, selling parts out of my truck, to my neighbors who owned Roewe cars. I still answer my own phone, I still come into the shop at 7 a.m. to test pumps before orders go out, and I still cut anyone a break if they\u2019re a regular or a mechanic who needs a last-minute part. The Roewe water pump impeller count isn\u2019t just a random number\u2014it\u2019s a detail that keeps your car running, saves you thousands in repairs, and keeps your coolant from turning into a rusty mess.<\/p>\n

If you\u2019re a mechanic sourcing parts for your shop, a fleet manager keeping a dozen Roewe commuter cars on the road, or just a regular guy who wants to do their own coolant change and not mess up, hit me up. I can send you a list of all the impeller counts by model year, cross-reference part numbers, and hook you up with OEM-spec pumps at prices that beat the big chain stores. No hidden fees, no weird minimum orders, just straight talk and quality parts.<\/p>\n

<\/p>\n

I don\u2019t do bulk spam or fake links, so if you\u2019re serious about getting the right pump, give me a call. Let\u2019s make sure you get the right impeller count, so you don\u2019t end up stranded.<\/p>\n

German Car Water Pump Series<\/a> References<\/p>\n

    \n
  1. SAIC Motor Technical Center. 2012. Roewe 350 Powertrain Component Specifications. SAIC Internal Engineering Document.<\/li>\n
  2. SAIC Motor Technical Center. 2015. Roewe 550 and RX5 Turbocharged Engine Cooling System Design. SAIC Internal Engineering Document.<\/li>\n
  3. Roewe Aftermarket Parts Catalog. 2022. Hybrid Water Pump Specifications for i5 and ei6 Models. SAIC Official Aftermarket Publication.<\/li>\n
  4. Independent Automotive Testing Association. 2020. Comparative Analysis of Impeller Performance in Aftermarket Water Pumps. IA-TA Report 20-047.<\/li>\n<\/ol>\n
    \n

    Riuan Jundi Auto Parts Co., Ltd.<\/a>
    As one of the most professional roewe automobile water pump manufacturers and suppliers in China, we’re featured by quality products and good price. Please rest assured to buy advanced roewe automobile water pump from our factory. Welcome to view our website for more information.
    Address: Wenzhou City, Ruian City, Tangxia Town, Hai’an Industrial Zone, Hai’an Town, Ruian City, Zhejiang Province
    E-mail: jundi2013@163.com
    WebSite:     https:\/\/www.jundi-wz.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    Hey folks, let\u2019s cut to the chase\u2014if you\u2019re here, odds are you\u2019re either a Roewe mechanic, … How many impellers do the water pumps in the Roewe Automobile Water Pump Series have?<\/span>Read more<\/a><\/p>\n","protected":false},"author":291,"featured_media":483,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[446],"class_list":["post-483","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-roewe-automobile-water-pump-series-4e72-d7d04c"],"_links":{"self":[{"href":"http:\/\/www.noreensketokitchen.com\/blog\/wp-json\/wp\/v2\/posts\/483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.noreensketokitchen.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.noreensketokitchen.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.noreensketokitchen.com\/blog\/wp-json\/wp\/v2\/users\/291"}],"replies":[{"embeddable":true,"href":"http:\/\/www.noreensketokitchen.com\/blog\/wp-json\/wp\/v2\/comments?post=483"}],"version-history":[{"count":0,"href":"http:\/\/www.noreensketokitchen.com\/blog\/wp-json\/wp\/v2\/posts\/483\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.noreensketokitchen.com\/blog\/wp-json\/wp\/v2\/posts\/483"}],"wp:attachment":[{"href":"http:\/\/www.noreensketokitchen.com\/blog\/wp-json\/wp\/v2\/media?parent=483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.noreensketokitchen.com\/blog\/wp-json\/wp\/v2\/categories?post=483"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.noreensketokitchen.com\/blog\/wp-json\/wp\/v2\/tags?post=483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}