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CTA Tools

CTA Tools Spark Plug Gapper

The CTA Tools 3235 Ramp-Type Spark Plug Gapper is a handy, compact tool for adjusting spark plugs, offering excellent value for its low price. While it includes useful features like compatibility with various plug sizes and precision adjustments, some users find it lacks accuracy and durability. If you need a basic tool for occasional use, it’s a decent option, but for regular heavy-duty tasks, you might want to invest in a higher-quality tool.

Model: 3235Color: Original VersionUPC: 53001032358
Lowest at Amazon
$5.77 at Amazon
Lowest at any Popular Retailer
$5.77 at Amazon

Where to Buy

Prices last updated: April 28th 2026 9:44 am

Product Score

Based on professional reviews and customer feedback

7.4/10
Overall
7.4
Consumer

Why this score?

The CTA Tools 3235 Ramp-Type Spark Plug Gapper receives a moderate score primarily due to its ease of use and solid build quality, which many users appreciate. However, numerous customers report significant accuracy issues, with measurements often deviating substantially from actual spark plug gaps, which could lead to performance problems. While it is affordable and convenient, potential buyers should be cautious about relying solely on this tool for precise work.

8+ Excellent
6-8 Good
4-6 Average
<4 Poor

Score

The CTA Tools 3235 Ramp-Type Spark Plug Gapper receives a moderate score primarily due to its ease of use and solid build quality, which many users appreciate. However, numerous customers report significant accuracy issues, with measurements often deviating substantially from actual spark plug gaps, which could lead to performance problems. While it is affordable and convenient, potential buyers should be cautious about relying solely on this tool for precise work.

7.4/10
Overall

Pros

  • Provides precision adjustments thanks to the ramype design.
  • Compatible with various spark plug sizes, adding to its versatility.
  • Small, compact, and lightweight design makes it easy to carry and store.
  • Affordable pricing, giving good value for the amount spent.

Cons

  • Some users report the tool not being accurate.
  • A few reviews mention louality materials, reducing its durability.
  • May not be suitable for professional or heavuty use due to the quality.

Bottom Line

The CTA Tools 3235 Ramp-Type Spark Plug Gapper is a handy, compact tool for adjusting spark plugs, offering excellent value for its low price. While it includes useful features like compatibility with various plug sizes and precision adjustments, some users find it lacks accuracy and durability. If you need a basic tool for occasional use, it’s a decent option, but for regular heavy-duty tasks, you might want to invest in a higher-quality tool.

Read full expert review

What Reviewers Are Saying

Praised
easy to use10%
Criticized
not accurate19%
poor fit and finish5%
low quality product5%
cheap gap tool5%
inaccurate tool5%
terrible material choice5%
not worth the money5%

Customer Ratings

6,103 reviews averaging 4.6 out of 5 stars from Amazon
4.6
6,103 reviews
5
78%
4
12%
3
5%
2
2%
1
3%

Based on 6,103 reviews from Amazon

Common Questions

The CTA Tools 3235 Spark Plug Gapper is pretty straightforward to use, which is nice to have in your toolbox. It's small and portable enough to fit in your pocket or hang onto a keychain—super handy w...

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Discussion

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