Wagner DOT 3 21B Brake Fluid
32 oz; 946 ml
Price as of 2026-06-21. Check Amazon for the current price.
Quick Decision
Price Intelligence
- Budget:$5–$13
- Mid-range:$13–$30← You are here
- Premium:$30+
Is This Right For You?
- •Budget-conscious shoppers — priced below 72% of brake fluids
- •Lucas Oil 10826 Brake Fluid offers a better rating (4.9/5) at a similar or lower price ($9)
- •Lucas Oil 10826 Brake Fluid — higher rated at 4.9/5 ($9)
📊 Based on data analysis of 89 products in this category.
Mubboo Score: B+
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other brake fluids
Computed from live Amazon rating, review count, and price across 89 brake fluids available to US consumers · last refreshed 2026-06-21.
How It Compares
This Product Wagner DOT 3 21B Brake Fluid | Most Popular Liqui Moly Brake Anti-Squeal Paste 100g | Best Rated Lucas Oil 10826 Brake Fluid | Best Value Prestone AS401 DOT 3 Synthetic Brake Fluid | |
|---|---|---|---|---|
| Price | $12.99 | $15.75 | $9.24 | $9.38 |
| Rating | 4.7/5 | 4.6/5 | 4.9/5 | 4.8/5 |
| Reviews | 136 | 4,213 | 2,523 | 3,037 |
| Mubboo Score | B+ | A | A+ | A+ |
About Wagner
- 8 products in our database
- Average rating: 4.6/5 across all products
- Price range: $12.99 – $190
- Categories: brake-fluids, Car Vacuums, power-tools, steam-cleaners-steam-mops-and-accessories, wallpaper-and-wallpapering-supplies
If not the DOT 3 21B Brake Fluid, consider these
Bottom Line
Wagner DOT 3 21B Brake Fluid earns Mubboo Score B+. Priced at $13 — a budget-friendly option, below the category average of $29. Rated 4.7/5 from 136+ reviews. Strong buy if: budget-conscious shoppers. Skip if: lucas oil 10826 brake fluid offers a better rating (4.9/5) at a similar or lower price ($9) — Liqui Moly Brake Anti-Squeal Paste 100g (Score A, $16) may fit better.
Frequently Asked Questions
Is the Wagner DOT 3 21B Brake Fluid worth buying in 2026?
It earns a Mubboo Score of B+, with a 4.7/5 rating from 136 reviews — better than 53% of brake fluids we track.
How much does the Wagner DOT 3 21B Brake Fluid cost?
It is currently $12.99 — budget-tier pricing for brake fluids.
How does the DOT 3 21B Brake Fluid compare to other brake fluids?
The category's most-reviewed alternative is the Liqui Moly Brake Anti-Squeal Paste 100g (4.6/5, 4,213 reviews, $15.75). The DOT 3 21B Brake Fluid carries a Mubboo Score of B+ vs A.
Sources & References
Products available through US retailers. Prices in USD. Sales tax varies by state and is not included.
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-21) and may change.