I wish I knew myself before my overheating probs with the failed first gen water pumps from toyota. Once the new pump was in the engine would work really well when it comes to heating and cooling.
My original lasted 18 years / 249k miles. The replacement one has been in place for almost 2 years / 22k miles.
Graf here. 15k miles/ 2 years, no problems.
I use on my 12v and 24v VR6 engines, Eurowise aluminum thermostat housing and 42DD stainless steel crack pipe. Water pump I use GRAF or Hepu for its metal impeller.
My 99 V6 just rolled 316k, am looking into my 2nd timing belt/water pump DIY
Engine water pump is leaking coolant. The pulley and drive belt are slinging the coolant onto other components. Highly recommend to replace with factory parts.
Mine started going out at ~165k in 2023. 05 Prius. I mostly drive less 5miles at a shot, and it would toss a code if driven much more than that and it was hot
what I had problems with is with Graf water pump, that was included as part of FCP euro cooling system kit, water pump seal around the bearing started pouring coolant like a waterfall after only 11k miles, I replaced it with a Stewart pump
I had my issues with the 2nd gen (water pump failure)
the metal fins are spot welded like shit on these cheap metal waterpumps. my graf pump also started to leak from the weep hole after a year too
Write your review
Help others - share your experience with this part.
Water pump OEM Audi or OEM Volkswagen
Water pump GRAF or OEM Volkswagen
Water pump AISIN or OEM Volkswagen
Water pump Gates or OEM Volkswagen
Water pump Hepu or OEM Volkswagen
Water pump Pierburg or OEM Volkswagen
Water pump OEM FORD or OEM Volkswagen
Water pump OEM BMW or OEM Volkswagen
Show allVoted AGAINST engine oil RAVENOL on the rating page
The brake pads NIPPARTS got the first review!
The brake discs Hella got the first review!
The brake discs OEM Suzuki got the first review!
For tires OEM Toyota already 25 reviews.
For tires IRONMAN already 25 reviews.
For starter motor OEM Volkswagen already 25 reviews.
In the rating best ignition coil already 13 brands participate!
In the rating best fuel pump already 5 brands participate!
In the rating best turbocharger already 4 brands participate!
In the auto rating headlights for Volkswagen Golf already 5 brands participate!
In the auto rating brake pads for Mazda 5 already 10 brands participate!
In the auto rating brake pads for BMW M2 already 5 brands participate!
Voted AGAINST engine oil RED LINE on the rating page
Voted AGAINST engine oil PENNZOIL on the rating page
If choosing water pump across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare water pump across these categories:
In March 2026 on PartReview, water pump GRAF were overall better than OEM Toyota.
In March 2026 on PartReview, water pump GRAF were overall more popular than OEM Toyota.
By vote balance, water pump GRAF surpassed OEM Toyota:
By number of reviews, water pump GRAF surpassed OEM Toyota:
In March 2026, according to PartReview, water pump GRAF led more car-specific ratings than OEM Toyota:
GRAF are chosen by owners of cars such as: Volkswagen Jetta, Volkswagen Tiguan, and others.
Water pump OEM Toyota have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of water pump OEM Toyota with: OEM Volkswagen, OEM Audi, AISIN, Gates, Hepu, Pierburg, OEM FORD, OEM BMW, GMB, Saleri.
Also available: comparisons of water pump GRAF with: OEM Volkswagen, OEM Audi, AISIN, Gates, Hepu, Pierburg, OEM FORD, OEM BMW, GMB, Saleri.
You can also see who is better among other water pump manufacturers: OEM Audi or OEM Volkswagen, GRAF or OEM Volkswagen, AISIN or OEM Volkswagen, Gates or OEM Volkswagen, Hepu or OEM Volkswagen.
