


LS Billet Aluminum Rear Main Cover Engine Seal Housing LS1 LS3 LS7
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
LS Billet Aluminum Rear Main Cover Engine Seal Housing LS1 LS3 LS7LS Billet Aluminum Rear Main Housing Compatible with Gen III and Gen IV GM LS series engines 1997 2014 Heavy duty billet construction, unlike OEM cast covers Compatible with OEM style seal & gasket Will not fit LSX blocks Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum Includes: 1 rear main cover & mounting bolts
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Your LS Billet Aluminum Rear Main Cover Engine Seal Housing LS1 LS3 LS7 orders ship within 1-2 business days.
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- Express: 1-2 business days
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4.1 ★★★★★
Based on 329 reviews
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Product Reviews
★★★★★ 5
Perfect fit, durable and affordable
Size: 9.5" x 10.9" x 2.1"
Ordered this for our 2023 Honda civic. Great fit, durable and very affordable. Was so easy to pull old one out and replace new one. Will be ordering again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 3, 2025
★★★★★ 5
Save money by installing yourself
Size: 9.5" x 10.9" x 2.1"
Good price and easy to install in a 2019 Honda CRV. Instructions can be found on YouTube. Much less expensive than having a service center install them.
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Reviewed in the United States on February 14, 2026
★★★★★ 4
Always fits and is easy to install
Size: 9.5" x 10.9" x 2.1"
We've bought these for years and they always fit and are easy to install. Easy to see when they are dirty and need to throw away. Embarrassed that we let the car dealership do it for so long. We set on six-month subscribe and save so that we know when to replace it - change it whenever it shows up!
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Reviewed in the United States on September 13, 2023
★★★★★ 5
Better than I expected.
Size: 9.5" x 10.9" x 2.1"
Fits perfectly. Easy to install. As good of quality as the original equipment filter.
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Reviewed in the United States on January 9, 2026
★★★★★ 5
Great
Size: 9.5" x 10.9" x 2.1"
Excellent product! My car really needed it. Super fast delivery and the best price. I'm super happy with this product.
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Reviewed in the United States on November 12, 2025