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LS LS1 1/8"npt Coolant / Steam Port Adapters for Crossover Hose / Tube

Marsoni M251S
Sale price$43.99
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Get it in 3 business days with 1 day shipping. Friday, May 29
LS LS1 1/8"npt Coolant / Steam Port Adapters for Crossover Hose / TubeLS Coolant Crossover Ports Compatible with: all GM LS series engines Made in Wichita, Kansas from aerospace grade, USA produced billet aluminum 1 8" NPT threaded holes to attach steel braided or other crossover tube fittings between the cylinder heads Package Includes: 2 coolant ports, 2 o rings and 2 bolts Can be installed on the front or rear of the cylinder heads Compatible with factory style head bolts or ARP 12 point head studs *not compatible
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.7 ★★★★★
Based on 611 reviews
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Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 5
Fast delivery and good price
Good price and name brand
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
G
Verified Purchase
Gregory W.
Omaha, US
★★★★★ 4
Gas welder "lincoln "
Fit as expected
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
E
Verified Purchase
E
Grantham, US
★★★★★ 5
Direct replacement for my J Deere GT225
Fit my John Deere GT225 as a direct replacement. It did need to be re-gapped before installation. I think the price was fair for two spark plugs, now I have a spare.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
T
Verified Purchase
Tim Buelow
Waukegan, US
★★★★★ 5
check to make sure if you need the roller brush too.
fits perfectly
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Reviewed in the United States on April 28, 2026
F
Verified Purchase
Floyd Harris
Birmingham, US
★★★★★ 5
Spark plugs
As advertised
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Reviewed in the United States on April 27, 2026

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