Currently running a fvp, which is just a gmb, and it works great.
Pros: works great
Reviews of GMB 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
4.2
Manufacturer Ranking
-
15
Spare Parts
1
Country
Japan
Spare Parts
I've been running the aluminum GMB pump (1301280AL on Rockauto) on the 455 in my '72 Bonneville for about 5 years now with no problems.
Pros: no problems, 5 years reliable
Part number: 1301280AL
I have 20-25k miles on a GMB pump now and it hasn't leaked a drop. We'll see how long it goes, but so far I'm happy with it.
Pros: no leaks, reliable performance
Mileage: 32000 km
Me and various others I know have used GMB water pumps before with no issues.
Pros: no issues
I been running a Gmb pump for couple thousand miles now. Super cheap on rock auto, they also sell a high performance one. I bought both
Pros: super cheap
I usually use rock auto and get the gmb outlander pump.
Vehicle:
Mitsubishi Outlander
GMB is a decent pump.
Pros: decent pump
I checked the old water pump and took it out by removing the front plate of the engine... The old water pump moves fine but it does make a squeaking noise and is quite old however it does move.
Cons: squeaking noise, quite old
Vehicle:
Chrysler LHS
Mileage: 160934 km
Melling and Aisin are both premium WPs. Airtex is pretty good. GMB is ok.
Pros: ok quality
I put in a GMB in my '02 two years ago, and it's leaking already.
Cons: leaking, short lifespan
Vehicle:
BMW
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Owner reviews of GMB products
The GMB brand is registered in Japan. Official website is not specified yet.
In March 2026, PartReview recorded 15 reviews across 1 part by GMB. Average rating — 4.2 out of 5.
GMB is not yet in the PartReview manufacturers ranking due to insufficient reviews.
Popular GMB parts
The most popular GMB products on PartReview:
- Water pump GMB - 15 reviews. PR Score — 85, average rating — 4.2.
Most owner reviews about GMB parts are collected on these pages.
Top-rated GMB parts
GMB achieved top positions in these PartReview part rankings:
- Best water pump — ranked 6 among 12 manufacturers. Received 1867 votes.
Comparisons of GMB parts
The most interesting comparisons of GMB with other manufacturers help you see which is better: