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Briggs & Stratton vs Cummins

Side-by-side brand comparison based on generator scoring data

Briggs & Stratton logo

Briggs & Stratton

5.0avg score
Tier B
6 models | 5 scored
VS
Cummins logo

Cummins

6.8avg score
Tier A
5 models | 5 scored
Cummins leads overall

Cummins has a strong lead in our scoring dataset, with Briggs & Stratton close behind. The edge comes mainly from a stronger feature-set score and higher reliability-tier positioning. Choose Cummins if you want stronger feature and convenience coverage. Choose Briggs & Stratton if you are optimizing for a specific model match, budget, or feature mix.

Last updated September 9, 2026

Expert Analysis

Cummins holds a clear advantage over Briggs & Stratton across every scoring category evaluated on RightGenerator.com. With an average overall score of 6.8 compared to 5.0 for Briggs & Stratton, Cummins generators consistently outperform their counterparts in value (5.6 vs 4.1), build quality (6.3 vs 5.7), practical features (6.2 vs 4.6), and feature set (7.8 vs 2.3). The gap in features is especially notable, with Cummins scoring more than three times higher on average in that category.

Reliability further separates the two brands. Cummins earns a Tier A reliability rating with a score of 91 out of 100, while Briggs & Stratton sits in Tier B at 76 out of 100. This difference is significant for buyers who depend on their generator during emergencies or extended use. Both brands offer similarly sized catalogs, with Briggs & Stratton listing 6 published generators (5 scored) and Cummins listing 5 (all scored).

In head-to-head matchups, Cummins wins every pairing. The closest contest is between the two brands' top models, the Briggs & Stratton 30814 P4500 PowerSmart (6.3) and the Cummins Onan P4500i (7.4), which share a 90% similarity rating. Even in that tightest comparison, the Cummins unit leads by more than a full point. In the inverter category, the gap widens considerably, with the Cummins Onan P2500i scoring 7.1 against the Briggs & Stratton 30758 P2400 PowerSmart at just 4.6.

Key Differences

  • Cummins has a stronger brand reliability rating (Tier A)
  • Cummins scores higher on average for value
  • Cummins scores higher on average for build quality
  • Cummins scores higher on average for practical features
  • Cummins scores higher on average for feature set
  • Cummins has a higher average overall score (6.8 vs 5.0)

Who Should Choose Briggs & Stratton?

Briggs & Stratton may appeal to buyers who already have a relationship with the brand through its broader outdoor power equipment lineup, or those who find a specific Briggs & Stratton model at a steep discount. The brand's Tier B reliability rating (76 out of 100) is not poor, and its top model, the 30814 P4500 PowerSmart, earns a respectable 6.3 overall score. For shoppers on a tight budget who encounter a favorable deal, a Briggs & Stratton generator could still serve as a functional backup power source.

That said, the data does not present a strong case for choosing Briggs & Stratton over Cummins when both options are available at comparable prices. With lower scores across every measured category, Briggs & Stratton is harder to recommend unless price or availability tips the scales.

Who Should Choose Cummins?

Cummins is the stronger choice for buyers who prioritize reliability, features, and overall performance. Its Tier A reliability score of 91 out of 100 makes it one of the more dependable options on the market, and its average feature score of 7.8 suggests that Cummins generators come well equipped out of the box. The Onan P4500i, scoring 7.4 overall, stands out as the top model in this comparison and is a strong pick for portable inverter power.

Cummins also edges ahead in value with a 5.6 average compared to 4.1 for Briggs & Stratton, meaning buyers are likely getting more capability per dollar spent. Whether the need is for a compact inverter generator like the Onan P2500i (7.1) or a larger dual-fuel unit like the Onan P9500DF EFI (7.2), Cummins offers competitive options across multiple power tiers.

Score Breakdown

CategoryBriggs & StrattonWeightCummins
Overall
5.0
100%
6.8
Value
4.1
30%
5.6
Quality
5.7
22%
6.3
Practical
4.6
20%
6.2
Features
2.3
18%
7.8

Key Takeaways

  • Cummins outscores Briggs & Stratton in every category, earning a 6.8 average overall compared to 5.0.
  • Cummins holds a Tier A reliability rating (91 out of 100), while Briggs & Stratton sits at Tier B (76 out of 100).
  • The feature score gap is the widest difference between the two brands, with Cummins averaging 7.8 versus 2.3 for Briggs & Stratton.
  • In the closest head-to-head matchup, the Cummins Onan P4500i (7.4) beats the Briggs & Stratton 30814 P4500 PowerSmart (6.3) despite 90% similarity.
  • Cummins scores higher in value (5.6 vs 4.1), suggesting better overall return on investment.
  • Both brands offer small catalogs of 5 to 6 published generators, so selection is limited for either option.

Top Model Matchups

The best generator-to-generator comparisons between Briggs & Stratton and Cummins.

Best Overall90% similar
Briggs & Stratton 3,700W Gas Generator
30814 P4500 PowerSmart
Score 6.33,700W
Briggs & Stratton 3,700W Gas GeneratorVSCummins 3,700W Gas Generator
Cummins 3,700W Gas Generator
Onan P4500i
Score 7.43,700W
View detailed comparison
Top Inverter80% similar
Briggs & Stratton 1,800W Gas Generator
30758 P2400 PowerSmart
Score 4.61,800W
Briggs & Stratton 1,800W Gas GeneratorVSCummins 2,200W Gas Generator
Cummins 2,200W Gas Generator
Onan P2500i
Score 7.12,200W
5,000-8,000W67% similar
Briggs & Stratton 5,000W Gas Generator
30737
Score 4.45,000W
VSCummins 7,500W Dual-Fuel Generator
Cummins 7,500W Dual-Fuel Generator
Onan P9500df
Score 6.07,500W
Best Value52% similar
Briggs & Stratton 5,000W Gas Generator
30761 Q6500 QuietPower
Score 5.65,000W
Briggs & Stratton 5,000W Gas GeneratorVSCummins 7,500W Dual-Fuel Generator
Cummins 7,500W Dual-Fuel Generator
Onan P9500DF EFI
Score 7.27,500W
Closest Alternative46% similar
Briggs & Stratton 6,250W Gas Generator
30728 Storm Responder
Score 4.26,250W
Briggs & Stratton 6,250W Gas GeneratorVSCummins 3,900W Dual-Fuel Generator
Cummins 3,900W Dual-Fuel Generator
Onan P5000iDF EFI
Score 6.43,900W

Frequently Asked Questions

Is Briggs & Stratton more affordable than Cummins?

Based on the scoring data, Cummins actually rates higher in value with a 5.6 average compared to 4.1 for Briggs & Stratton. While sticker prices are not included in this dataset, the value scores suggest Cummins delivers more for the money overall.

Which brand is more reliable for emergency backup power?

Cummins earns a Tier A reliability rating with a score of 91 out of 100, making it the more dependable choice. Briggs & Stratton holds a Tier B rating at 76 out of 100, which is decent but notably lower.

How do the top inverter generators from each brand compare?

The Cummins Onan P2500i scores 7.1 overall, while the Briggs & Stratton 30758 P2400 PowerSmart scores 4.6. Despite an 80% similarity rating between the two models, the Cummins unit leads by a significant margin of 2.5 points.

Does Briggs & Stratton have any advantage over Cummins?

In the categories measured, Briggs & Stratton does not lead Cummins in any scoring area. Its catalog is slightly larger with 6 published generators versus 5 for Cummins, but that is a marginal difference. Buyers may still find situational advantages based on local pricing or dealer availability.

Explore Further

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