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Sierra 18-1277 Head Gasket Set for MerCruiser 4-Cylinder 3.7L 470

Manufacturer

Picture for manufacturer Sierra

Part Number

18-1277
16 reviews
Sale Price

$117.58

In Stock (10+)

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Usually delivered within 2 days

free shipping

FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-1277 Head Gasket Set is a comprehensive engine sealing kit engineered for the MerCruiser 4-cylinder 3.7L 470 sterndrive engine. This all-in-one kit includes every critical gasket and seal needed for a complete valve grind or top-end engine rebuild, eliminating the need to source individual components separately.

Kit Contents:

  • Head Gasket (Sierra 18-3878) — Replaces OEM part numbers 27-92166, 27-13709, and 27-13709T
  • Intake Manifold Gasket (Sierra 18-0158) — Replaces OEM 27-70905
  • Quadrajet Carburetor Mounting Gasket (Sierra 18-2848)
  • Valve Cover Gasket — Replaces OEM 27-73666
  • Exhaust Manifold Mounting Gasket — Replaces OEM 27-68715
  • Valve Stem Seals — Replaces OEM 26-75413

Sierra International is a trusted manufacturer of marine engine components, producing parts built to meet or exceed original equipment specifications. The 18-1277 gasket set provides a reliable, cost-effective solution for restoring proper compression and preventing oil, coolant, and combustion gas leaks on the MerCruiser 470 platform. Verify your engine's OEM part numbers against those listed above before ordering to ensure correct fitment.

Need more details about products

shipping is a bit high

Like the free delivery and prices

easy

Will keep in consideration for next purchase.

Competitive pricing. Easy to use website. Very fast shipping. Will be shopping here again in the future!

Great products offered at an amazing price! Quick response times and shipping. Will do business with Autoplicity again!

Fast checkout

This is my first time (but definitely not my last) to use Autoplicity. After doing several searches for the Air Lift helper springs Autoplicity beat everyone by at least 20 dollars. Another nice shock was they have very reasonable shipping rates.

nice offering of piston ring compressors!

It was easy and the price is good, but this is just the order. If I get the product in the same manor, that will be great. Thanks, Mike

Fast and easy

Absolute lowest price on the web. Correspondance was great letting me know every step of the purchase and shipping process right up to a tracking number.<br>Ordered Tue. got tracking number Friday ... great job great savings.<br><br>I highly recommend doing business with this fine company!!

Great prices & fast shipping.

Easy to find parts on web site, great prices, great customer service!

Best price I can find on my item and fast shipping. Thinking about becoming a member to order all my parts for my racing team.

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