I got the graf as well, def better than what the previous owner used
Pros: better than previous
Reviews of GRAF parts For Business
Average Rating
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The manufacturer's average rating is calculated based on ratings of all its spare parts. It determines the place in the manufacturer ranking
3.1
Manufacturer Ranking
#170
71
Spare Parts
2
Country
Italy
Website
graf.it
Spare Parts
Comparisons
Graf is fine, I've put a bunch of them in 240s over the years, none have failed yet.
Pros: none have failed yet
Vehicle:
Volvo
Graf is good.
Pros: good quality
I ended up going with the water pump here: Graf Water Pump . There is no difference in engine performance or fuel economy with the new pump. But it will take longer to warm up, especially in colder weather.
Pros: more reliable pump
Cons: longer to warm up
Vehicle:
Volkswagen Passat
I personally replaced the water pump on my Tiguan with a Graf aluminum pump. The only issue I've had was the rubber o-ring on the temp sensor leaking. I replaced all the rubber seals with Rein branded ones and no more leaks.
Pros: aluminum pump, replaced rubber seals
Cons: o-ring on temp sensor leaking
Vehicle:
Volkswagen Tiguan
I had the same problem after installing the metal graf water pump. The problem is caused by the cheap thermostat that comes with the kit( assuming it is the graf kit). I put a stock OEM thermostat back on, and now the temps are fine.
Pros: temps are fine
Cons: cheap thermostat
Vehicle:
Volkswagen Tiguan
Thermostat for Graf Aluminum Water Pump I have rebuilt my 09 Eos with this pump. It worked properly for the first week, then the thermostat started sticking partly open, resulting is slow warm up, but proper temperature after several miles.
Pros: worked properly first week
Cons: thermostat started sticking
Vehicle:
Volkswagen Eos
I replaced the water pump in 3/2021. By 2/2022, it started leaking, so I replaced it under warranty. It leaked again in 1/2023, leading to a 3rd replacement. Now, one month in, the new pump is already leaking, this is driving me insane. This will be my 4th replacement in the last 3 yrs! These are GRAF PUMPS.
Cons: repeated leaks, short lifespan
Vehicle:
BMW
My '89 325iX doesn't put out much heat at idle, but as soon as I rev it to 2000 rpm, the heat starts coming out of the vents. At idle it is around 65°F air and at 2000 rpm it goes up to around 95°F (it is ~35°F outside today). I noticed a whistling noise that seems to come from the water pump at idle. Once the car got to normal operating temperature, I noticed that at idle coolant stopped coming out of the bleed hole. If I revved the engine a bit, coolant would flow. I replaced the water pump (Graf) 2900 miles and 3.5 months ago. My intuition is that the water pump isn't generating sufficient pressure at idle to move the coolant through the heater core.
Cons: insufficient pressure at idle, whistling noise, poor heat output
Vehicle:
BMW
Mileage: 4668 km
16,000 Miles (12 months) and now the Graf is leaking. After researching it seems a few bearing failures, a few thermostats, and some sensors out of the box are failing on these Graf pumps.
Cons: leaking, bearing failures
Vehicle:
Volkswagen Corrado
Mileage: 16000 km
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