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Koyo Type A Radiator Cap (Red / 1.3 Bar)

Marsoni M251S
Sale price$49.20
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Get it in 3 business days with 1 day shipping. Friday, May 29
Koyo Type A Radiator Cap (Red / 1.3 Bar)SKU: SK C13 UPC: 847839000753 Koyo Type A Radiator Cap (Red 1. 3 Bar) Fits Honda Civic 1988 2005 Integra 1986 2001 The Koyo Type A Radiator Cap in red with 1. 3 bar pressure rating delivers direct replacement performance for Type A radiator necks on Honda Civic 1988 2005 Integra 1986 2001 Prelude Nissan 240SX Mazda Miata RX 7 and more from 1986 2009. This cap maintains higher system pressure to raise coolant boiling point by 5 degrees F preventing
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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4.6 ★★★★★
Based on 1335 reviews
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Verified Purchase
Eric D
Alexandria, US
★★★★★ 5
good product
Size: 16 AWG-100 ft
good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 21, 2025
Z
Verified Purchase
Zander kagley
Port Orchard, US
★★★★★ 5
Good product at a great price
Size: 16 AWG-100 ft
Used to wire my door speakers and it worked amazing
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
J
Verified Purchase
jyst1
Los Angeles, US
★★★★★ 5
Smaller than the original, but works well.
When I received it, it was so small that I thought it was a toy, or maybe for some 4cyl engine. It is significantly smaller than the original one. When I looked closer, the mount holes did line up, so I tried it. I did have to get shorter mount bolts. To my surprise, it works great! I don't know what the longevity will be, but it made it through a busy august! Considering the price and how small it is, I might just buy a second one to keep on board. Just in case.
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Reviewed in the United States on September 14, 2025
B
Verified Purchase
Bob Valentine
Pawtucket, US
★★★★★ 1
Warning!!!
I was so impressed after install!! Fired right up faster that it ever has in the past, had the boat out about 8 times and CACK!!! They say they will stand behind the product and replace it, but do I risk another day ruined on the river? Btw, I have a Volvo penta 5.0 21.5' Larson I/O
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Reviewed in the United States on September 28, 2025
M
Verified Purchase
Maris I.
Bozeman, US
★★★★★ 5
Perfect fit and functioning. Excellent support
The starter fit perfectly, in my Mercruiser 4.3 from 2004, although it was awkward to replace on my engine due to space constraints. I had a few questions for the supplier and quickly received very descriptive answers. Now the starter works perfect in my boat. In all a very good choice which I really can recommend others.
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Reviewed in the United States on June 27, 2024

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