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Cometic C5721-120 Buick 3800 Series II/III V6 MLS Cylinder Head Gasket

(Chevrolet Camaro 1996-2002, Impala 2000-03, Monte Carlo 1998-2003, Lumina 1998-99; Pontiac Firebird 1996-2002, Grand Prix 1997-2003 + 10 more models)

Part of: Cometic MLS Cylinder Head Gasket Bore Honda

Other options in this family: Cometic C4311-040 Cometic C4251-030 Cometic C4232-030 Cometic C4962-028 Cometic C5434-051

Manufacturer

Picture for manufacturer Cometic

Part Number

C5721-120
14 reviews
Sale Price

$231.78

Estimated ship date Tuesday, November 24

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Product Details

The Cometic C5721-120 is a Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Buick 3800 Series II and Series III V6 engines. This precision-manufactured gasket features a .120" (3.0mm) compressed thickness and a 3.840" bore diameter, designed to provide superior sealing performance in both stock and modified applications.

Key Specifications:

  • Compressed thickness: .120 inches (3.0mm)
  • Bore diameter: 3.840 inches
  • Multi-Layer Steel (MLS) construction for enhanced durability
  • Designed for right-hand side (RHS) cylinder bank
  • Application-specific fitment for Buick 3800 Series II/III V6 engines

Cometic's MLS gasket technology utilizes multiple layers of stainless steel with elastomeric coatings to create a superior seal that accommodates cylinder head movement and maintains sealing integrity under extreme temperatures and pressures. The advanced construction provides excellent recovery properties and resistance to blow-out, making this gasket ideal for performance builds, forced induction applications, and engine rebuilds where reliability is critical.

Products specifications

Fits

Chevrolet Camaro 1996-2002, Impala 2000-03, Monte Carlo 1998-2003, Lumina 1998-99; Pontiac Firebird 1996-2002, Grand Prix 1997-2003, Bonneville 1996-2003; Buick Regal 1996-2003, LeSabre 1996-2003, Park Avenue 1996-2003 + 6 more models

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Material

Multi-layer Steel

very easy to use

Quick, easy - had the part - could checkout through Amazon.

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Order took a few days to ship but when it did it arrived fast.

The absolute best price around by far for the Diablosport Intune. Order left Autoplicity within a day of ordering and they quickly provided an email with tracking number. This company is everything you would expect from a better known store except the inflated price.

Ordered two items where Autoplicity had the cheapest price and within a few days, it was shipped here as ordered in perfect shape. No hassles at all!

Lowest prices around and ausome customer service will deal with you guys in the future!!

great price and order process was very simple and easy

Processed and shipped fast. I was a little upset with them shipping my Eibach springs in the Eibach box, and not repackaging it. Everyone could see the box, and knew what was in it. But this will not stop me from ordering again.

Bought a roll n lock tonneau for my Tacoma. The price was less than any other sellers advertised price on the internet. It was easy with a couple of clicks and the delivery was fast. Definitely would buy from them again.

Very fast

great

Excellent!

One of the simplest orders I have placed for autoparts. Well done

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