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Description
Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .045in MLS Cylinder Head Gasket - 4.350in Bore - LHSComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 045". Left Side. Cometic MLS (Multi Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created
Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.045". Left Side. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2004 | Chevrolet | Avalanche 2500 | Base |
| 2005-2006 | Chevrolet | Avalanche 2500 | LS |
| 2005-2006 | Chevrolet | Avalanche 2500 | LT |
| 2001-2002 | Chevrolet | Express 3500 | Base |
| 2001-2002 | Chevrolet | Express 3500 | LS |
| 2001-2005 | Chevrolet | Silverado 2500 HD | Base |
| 2001-2006 | Chevrolet | Silverado 2500 HD | LS |
| 2001-2006 | Chevrolet | Silverado 2500 HD | LT |
| 2004-2006 | Chevrolet | Silverado 2500 HD | WT |
| 2007 | Chevrolet | Silverado 2500 HD Classic | LS |
| 2007 | Chevrolet | Silverado 2500 HD Classic | LT |
| 2007 | Chevrolet | Silverado 2500 HD Classic | WT |
| 2001-2005 | Chevrolet | Silverado 3500 | Base |
| 2001-2006 | Chevrolet | Silverado 3500 | LS |
| 2001-2006 | Chevrolet | Silverado 3500 | LT |
| 2004,2006 | Chevrolet | Silverado 3500 | WT |
| 2007 | Chevrolet | Silverado 3500 Classic | LS |
| 2007 | Chevrolet | Silverado 3500 Classic | LT |
| 2007 | Chevrolet | Silverado 3500 Classic | WT |
| 2001 | Chevrolet | Suburban 2500 | Base |
| 2001-2006 | Chevrolet | Suburban 2500 | LS |
| 2001-2006 | Chevrolet | Suburban 2500 | LT |
| 2001-2002 | GMC | Savana 3500 | Base |
| 2001-2002 | GMC | Savana 3500 | SLT |
| 2002-2005 | GMC | Sierra 2500 HD | Base |
| 2001-2002,2006 | GMC | Sierra 2500 HD | SL |
| 2001-2006 | GMC | Sierra 2500 HD | SLE |
| 2001-2006 | GMC | Sierra 2500 HD | SLT |
| 2003-2006 | GMC | Sierra 2500 HD | WT |
| 2007 | GMC | Sierra 2500 HD Classic | SL |
| 2007 | GMC | Sierra 2500 HD Classic | SLE |
| 2007 | GMC | Sierra 2500 HD Classic | SLT |
| 2007 | GMC | Sierra 2500 HD Classic | WT |
| 2002-2005 | GMC | Sierra 3500 | Base |
| 2001-2002,2006 | GMC | Sierra 3500 | SL |
| 2001-2006 | GMC | Sierra 3500 | SLE |
| 2001-2006 | GMC | Sierra 3500 | SLT |
| 2004-2006 | GMC | Sierra 3500 | WT |
| 2007 | GMC | Sierra 3500 Classic | SL |
| 2007 | GMC | Sierra 3500 Classic | SLE |
| 2007 | GMC | Sierra 3500 Classic | SLT |
| 2007 | GMC | Sierra 3500 Classic | WT |
| 2001-2006 | GMC | Yukon XL 2500 | SLE |
| 2001-2006 | GMC | Yukon XL 2500 | SLT |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 4
Reliable comfort
Fit Type: Boyshort, Size: X-Large, Color: Assorted Colors
I’ve tried a few cotton underwear brands, and these Hanes Originals boxer briefs are a dependable everyday option. Here’s my take after a few weeks of regular wear and wash cycles.
Comfort and Fit
Fabric:** 90–95% cotton with a touch of elastane/spandex for stretch. The material feels soft against the skin and breathes well, which helps avoid that suffocating feeling on hot days.
Elastic & Waistband:** The waistband sits comfortably at the natural hip line without digging in. It maintains shape after several washes, which is a plus compared to some cheaper cotton blends.
Rise & Coverage:** The mid-thigh rise offers modest coverage without feeling bulky. They stay in place during daily activities, workouts, and quick stretches.
Style and Practicality
Design:** Classic, no-frills styling that works well under jeans, skirts, or dresses. The boxer brief cut provides a little more coverage than regular briefs without feeling like bloomers.
4-Pack Value:** The 4-pack is convenient for rotation and helps keep laundry cycles simple. Inexpensive enough to replace slightly worn pairs without guilt.
Colorway:** Basic, versatile colors that pair with most outfits. If you’re after bright or patterned options, you might want to look elsewhere.
Durability and Care
Washability:** They hold up well in standard machine washes and tumble dry cycles. The fabric doesn’t pill noticeably, and the waistband maintains elasticity after multiple washes.
Pilling:** Minimal pilling for the first several months. If you’re tough on underwear or frequently wash on high heat, you may notice some wear sooner than later.
Comfort in Different Scenarios
Everyday Wear:** Great for day-to-day comfort and all-day wear. The breathable cotton keeps you cooler in warmer weather.
Active L activities:** Suitable for light workouts or active days, though for intense workouts you might prefer moisture-wicking blends.
Under Tight Clothing:** The smooth fabric and mid-thigh length work nicely under leggings or fitted outfits without visible lines.
Pros
Soft, breathable cotton blend
Comfortable waistband that doesn’t roll or dig
True mid-thigh coverage
Good value with a 4-pack
Durable after multiple washes
Cons
Not moisture-wicking like athletic-oriented underwear (if you need to stay dry during intense workouts)
Some people prefer a higher or lower rise depending on body type
Colors are basic; if you want prints or bolder colors, options are limited
Who I’d Recommend These For
Anyone seeking affordable, comfortable everyday underwear with a classic mid-thigh boxer brief silhouette.
People who prioritize cotton and breathability over high-tech moisture-wicking fabrics.
Those who like a simple, versatile pack suitable for mixed wardrobes.
If you’re deciding between Hanes Originals and something with more performance features, these are a solid everyday staple. They won’t wow you with luxury, but they deliver reliable comfort and durability at a sensible price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 5
Postpartum Opinion
Fit Type: Boyshort, Size: X-Large, Color: Assorted Colors
Bought the boy shorts size XL for postpartum and am still wearing them 8 months later! Holds all the postpartum goods in but are super stretchy too. Sooooo comfy! They do roll up when putting pants on but if you’re wearing them to bed or around the house, amazing!
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Reviewed in the United States on March 30, 2026
★★★★★ 3
To fit or not to fit?
Fit Type: Boyshort, Size: XX-Large, Color: Assorted Colors
NIce quality, comfortable fabric, dries quick, and retains color after multiple washings. However; the fit did not work 100% for me. The legs kind of rode up and the boy shorts had a tendency to ride down, especially with consistent bending up and down activity. Good product but not a perfect fit for my shape. The bikini style was ideal and purchased multiple times.
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Comfortable
Fit Type: Boyshort, Size: Medium, Color: Assorted Colors
These are very comfortable, lovely colors. You need to size down when purchasing a the material is high stretch.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Great choice
Fit Type: Boyshort, Size: XX-Large, Color: Assorted Colors
Very comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
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