Fuel pump Bosch or WALBRO

Bosch Fuel pump

Already bought new: Fuel tank In tank lift pump External fuel pump (Bosch) Fuel accumulator (Bosch) Fuel Filter (Bosch) Rebuilt fuel distributor. (CIS Flowtech) Stainless injector lines Fuel injectors (Bosch) Radiator (Nissens)

Vehicle: Volkswagen
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Bosch Fuel pump

Something basic with an indirect injection diesel engine and Bosch VE fuel pump. Then it can be run on any old oil that’s remaining long after the petrol has turned bad. Including engine oil from abandoned vehicle sumps. Peugeot 405 estate would be ideal.

Pros: run on any old oil
Vehicle: Peugeot 405
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WALBRO Fuel pump

I've used the Walboro 255 with stock lines/regulator and an analog fuel pressure regulator gauge right in the engine bay. No spikes, even when the pump is "hotwired" and the engine is off.

Pros: no pressure spikes
Vehicle: Mitsubishi
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Bosch Fuel pump

Eu tenho uma Tr4 2014...peguei com 15 mil km em 2015...em 10 anos ela teve 3 problemas: 1 motor do ventilador do radiador, s\u00e3o 2 ventiladores. 1 bomba de gasolina, que eu troquei numa bosch gen\u00e9rica e os amortecedores, mas esse nem conta.

Pros: troquei bomba de gasolina
Vehicle: Mitsubishi Pajero
Mileage: 15000 km
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Bosch Fuel pump

That rattle at around 2k rpm in the CP3 area is usually the coupler or pump itself starting to wear. The CP3 on the 6.7L is gear-driven and there’s no adjustment or ‘re-phasing’ you can do — it’s either good or it’s not. A little gear whine is normal, but a hard rattle means the internal plungers/bearings are coming apart. I would plan for a replacement rather than trying to nurse it along. Stick with a quality new or Bosch reman; the cheap Delphi/Rockauto pumps have a spotty track record and a failed pump will send metal into the fuel system. Also inspect the harmonic balancer and flex plate bolts, since they can mimic pump noise. If you’re not comfortable diagnosing, have a diesel shop listen before you throw parts at it.

Pros: quality new or reman
Cons: spotty track record, internal wear
Part number: EX836105
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Bosch Fuel pump
mrhoofy
  • Stalling:
Rating 3.0

I had a 1981 Volvo (in 2003). It had a B21 engine and a 4 speed + OD standard transmission. I daily drove it and it was fine. The Bosch fuel injection was very complicated, and when the fuel pump went, I happily changed the tank fuel pump, not realizing there was another fuel pump mounted under the drivers door.

Pros: interior was very high quality
Cons: fuel injection complicated
Vehicle: Volvo
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Bosch Fuel pump
DoUMoo2
  • Starting:
  • Stalling:
Rating 1.0

I learned that when my generic $125 fuel pump turned into a $750 tow and a $150 U-Haul trailer rental and 3 hours on the side of the road waiting for U-Haul to fix their blown out trailer tire. And then a new $400 Bosch fuel pump that I should have bought in the first place.

Pros: Bosch is better
Cons: generic pump failed
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Bosch Fuel pump
f3rn4ndrum5
  • Stalling:
Rating 1.0

My father-in-law bought a fuel $10 pump for his Honda Accord that came in a Bosch box and the mechanic told him that it was counterfeit but it was the only one available. He used that fuel pump and it broke in 2 days

Cons: broke in 2 days
Vehicle: Honda Accord
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Other comparisons

Which fuel pump to choose — Bosch or WALBRO?

If choosing fuel pump across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.

We compare fuel pump across these categories:

Comparison of fuel pump Bosch and WALBRO
  1. PR Score.
  2. Overall ranking.
  3. Vote balance.
  4. Average rating.
  5. Number of reviews.
  6. Feature ratings.
  7. Car owners’ choice.

Which fuel pump are better — WALBRO or Bosch?

In March 2026 on PartReview, fuel pump Bosch were overall better than WALBRO.

  1. Bosch received a PR Score of 74 out of 100, and WALBRO scored 77 points.
  2. Bosch ranked 2 in the overall ranking, and WALBRO ranked 3.
  3. The average rating is higher for WALBRO (4) than for Bosch (3.7).
  4. Fuel pump WALBRO have better feature ratings than Bosch:
    • Starting - owners believe, that this property for WALBRO is better than Bosch.
    • Stalling - drivers claim, that this property for WALBRO is outperforms Bosch.
    • Noise - reviews suggest, that this property for Bosch is preferred to WALBRO.

Which fuel pump are more popular — Bosch or WALBRO?

In March 2026 on PartReview, fuel pump Bosch were overall more popular than WALBRO.

By vote balance, fuel pump Bosch surpassed WALBRO:

  • For Bosch, the ratio of positive (143) to negative (50) votes is 93 votes.
  • For WALBRO, the ratio of positive (67) to negative (19) votes is 48 votes.

By number of reviews, fuel pump Bosch surpassed WALBRO:

  • For fuel pump Bosch there are 62 reviews: 43 positive, 7 neutral, 12 negative.
  • For fuel pump WALBRO there are 27 reviews: 19 positive, 5 neutral, 3 negative.

Which fuel pump do car owners prefer — Bosch or WALBRO?

In March 2026, according to PartReview, fuel pump Bosch led more car-specific ratings than WALBRO:

Bosch are chosen by owners of cars such as: Volkswagen Golf, and others.

Fuel pump WALBRO have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.

Other comparisons of fuel pump

If this comparison didn’t fully answer your question, there are many others on PartReview.

For example, comparisons of fuel pump Bosch with: DELPHI, OEM Volkswagen, AIRTEX.

Also available: comparisons of fuel pump WALBRO with: DELPHI, OEM Volkswagen, AIRTEX.

You can also see who is better among other fuel pump manufacturers: DELPHI or Bosch, DELPHI or WALBRO, DELPHI or OEM Volkswagen, DELPHI or AIRTEX, Bosch or OEM Volkswagen.

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