SKU: 70469170635

Twin Power 66-84 Shovelhead Big Twin Head Gasket Std Bore .040 MLS Replaces H-D 16770-66 Pr

$84.16 $93.51
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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Description

Twin Power 66-84 Shovelhead Big Twin Head Gasket Std Bore .040 MLS Replaces H-D 16770-66 PrUpgrade your vintage Shovelhead Big Twin engine with the TwinPower 66 84 Head Gasket. Designed specifically for standard bore sizes with a 040 MLS thickness, this high quality gasket ensures superior sealing for optimal engine performance and reliability. Crafted as a precise replacement for the Harley Davidson 16770 66 part, it maintains the integrity of your engine's cylinder head, preventing leaks and enhancing durability under demanding

Upgrade your vintage Shovelhead Big Twin engine with the TwinPower 66-84 Head Gasket. Designed specifically for standard bore sizes with a 040 MLS thickness, this high-quality gasket ensures superior sealing for optimal engine performance and reliability.

Crafted as a precise replacement for the Harley-Davidson 16770-66 part, it maintains the integrity of your engine's cylinder head, preventing leaks and enhancing durability under demanding conditions. Trust TwinPower to deliver components that meet the needs of enthusiasts and professionals alike.

Whether you're rebuilding, repairing, or tuning your classic motor, this head gasket is engineered to provide a perfect fit and consistent performance. Invest in quality and keep your Big Twin running smoothly with this essential engine component, exclusively available for enthusiasts seeking reliability and excellence.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 70469170635

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4.1 ★★★★★
Based on 2437 reviews
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Verified Purchase
Michael Howard
Charlottesville, US
★★★★★ 5
Do it mayne
Size: 9.5" x 10.9" x 2.1"
Good quality and fit but find it funny that the instructions with the air flow are on the side. I assume that would be facing out and was annoyed when I tried to close and it didn’t fit. Probably should have read the directions. Still would recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
K
Verified Purchase
Kcfangue
Houston, US
★★★★★ 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
N
Verified Purchase
NY2CO
Carnegie, US
★★★★★ 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.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
C
Verified Purchase
Customer Review
Omaha, US
★★★★★ 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
R
Verified Purchase
Randy Shiverdecker
Alexandria, US
★★★★★ 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

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