IHOTDER Car Radiator Cap
Coolant Reservoir Cap OEM#16401-31520,1640131520,Standard Radiator Coolant Reservoir Tank Cap Compatible with…
Price as of 2026-06-21. Check Amazon for the current price.
Quick Decision
Is This Right For You?
- •Budget-conscious shoppers — priced below 92% of caps
- •DSkoiph 19106-RNA-A48 Radiator Coolant Reservoir Overflow offers a better rating (4.6/5) at a similar or lower price ($6)
- •Ford Genuine F3AZ-6766-B Oil Cap — higher rated at 4.8/5 ($11)
📊 Based on data analysis of 192 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 caps
Computed from live Amazon rating, review count, and price across 192 caps available to US consumers · last refreshed 2026-06-21.
How It Compares
This Product IHOTDER Car Radiator Cap | Most Popular ROVIKE Fuel Cap | Best Rated Ford Genuine F3AZ-6766-B Oil Cap | Best Value DSkoiph 19106-RNA-A48 Radiator Coolant Reservoir Overflow | |
|---|---|---|---|---|
| Price | $5.99 | $7.87 | $11.21 | $5.99 |
| Rating | 4.5/5 | 4.4/5 | 4.8/5 | 4.6/5 |
| Reviews | 136 | 11,988 | 1,438 | 1,058 |
| Mubboo Score | B+ | A+ | A- | A |
What People Say
Synthesized from 40 reviews · 100% verified purchases.
Ensure exact fit by checking vehicle compatibility charts, as some caps may not seal properly and could trigger the check engine light. Compare prices locally, and verify if tether attachment meets your needs.
- Easy installation and perfect fit
- Resolves check engine light or EVAP error codes
- Secure seal and contamination prevention
- Good value for money
- Durable construction
- Inconsistent fit across vehicle models
- Sealing issues causing check engine light to stay on
- Tether piece may not attach properly
- Price may be higher than local stores
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About IHOTDER
- 11 products in our database
- Average rating: 4.5/5 across all products
- Price range: $5.99 – $29.99
- Categories: Backup Cameras, belts-hoses-and-pulleys-automotive, bumpers-and-bumper-accessories, caps, Car Jacks, door-entry-guard
Other caps
Bottom Line
IHOTDER Car Radiator Cap earns Mubboo Score B+. Priced at $6 — a budget-friendly option, below the category average of $14. Rated 4.5/5 from 136+ reviews. Strong buy if: budget-conscious shoppers. Skip if: dskoiph 19106-rna-a48 radiator coolant reservoir overflow offers a better rating (4.6/5) at a — ROVIKE Fuel Cap (Score A+, $8) may fit better.
Frequently Asked Questions
Is the IHOTDER Car Radiator Cap worth buying in 2026?
It earns a Mubboo Score of B+, with a 4.5/5 rating from 136 reviews — better than 63% of caps we track.
How much does the IHOTDER Car Radiator Cap cost?
It is currently $5.99 — budget-tier pricing for caps.
How does the Car Radiator Cap compare to other caps?
The category's most-reviewed alternative is the ROVIKE Fuel Cap (4.4/5, 11,988 reviews, $7.87). The Car Radiator Cap 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.