Best Engine Valve Cover Bolts of 2026

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 7, 2026

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Engine valve cover bolts are an essential component of any vehicle's engine. They are designed to fasten the valve cover to the cylinder head, ensuring a tight seal to prevent oil leaks and other engine problems. These bolts come in various sizes and materials, including steel, aluminum, and titanium, to accommodate different engine types and applications. Some valve cover bolts even feature unique designs and finishes to enhance the appearance of the engine bay. It is crucial to choose high-quality valve cover bolts to ensure the longevity and optimal performance of the engine.

At a Glance: Our Top Picks

269 Motorsports SBC Stainless Steel Valve Cover Stud Kit Cover #TOP 1
269 Motorsports SBC Stainless Steel Valve Cover Stud Kit
ftb score rating icon 9.9
K-MOTOR Valve Cover Nut Kit Cover #TOP 2
K-MOTOR Valve Cover Nut Kit
ftb score rating icon 9.8
BOATSHIP Lower Engine Cover Bolt Pins for Honda Accord, CRV, Civic Cover #TOP 3
BOATSHIP Lower Engine Cover Bolt Pins for Honda Accord, CRV, Civic
ftb score rating icon 9.6

Top 10 Engine Valve Cover Bolts

#TOP 1

269 Motorsports SBC Stainless Steel Valve Cover Stud Kit

B-16400
1/4-20
269 Motorsports SBC Stainless Steel Valve Cover Stud Kit Cover
SBC Valve Cover Stud Kit Bolts Stainless Steel 283 327 350 400 Small Block Chevy

The 269 Motorsports SBC Valve Studs are designed to securely attach valve covers to cylinder heads, providing a reliable fit for your Small Block Chevy engine. Made from hardened 304 stainless steel, these studs offer excellent strength and resistance to rust, ensuring long-lasting performance. The kit includes eight polished 1/4" x 1 1/2" studs, making installation straightforward and neat. Additionally, the polished hex locking flange nuts help keep everything firmly in place, preventing loosening due to engine vibrations. This kit is a great choice if you want durable, corrosion-resistant hardware for your Chevy engine's valve covers.

What We Like
Hardened 304 stainless steel
Polished studs and nuts
Includes locking flange nuts
Fits multiple SBC engine sizes
#TOP 2

K-MOTOR Valve Cover Nut Kit

Valve-Cover-Nut-H10
Chrome
K-MOTOR Valve Cover Nut Kit Cover
Valve Cover Nut - Compatible with Honda - Compatible with Acura engine - Stainless Steel (10 Pack) K-MOTOR

The K-MOTOR Valve Cover Nuts are designed to enhance your engine's performance and reliability. Made from durable stainless steel with a chrome finish, these nuts not only resist corrosion but also add a sleek look to your engine bay. They are compatible with various Honda models, including Civic and Accord, as well as several Acura models like Integra and RSX. This makes them a versatile choice for many vehicle owners. With ten nuts included in the kit, you’ll have enough to replace all the necessary parts, ensuring your valve cover is securely fastened and functioning optimally.

What We Like
Durable stainless steel construction
Corrosion-resistant chrome finish
Compatible with multiple Honda models
Includes ten nuts for convenience
#TOP 3

BOATSHIP Lower Engine Cover Bolt Pins for Honda Accord, CRV, Civic

BOATSHIP
4PCS Lower Engine Cover Bolt Pin Screws
1/4"-20 UNC
BOATSHIP Lower Engine Cover Bolt Pins for Honda Accord, CRV, Civic Cover
4PCS Lower Engine Cover Bolt Pin Screws Compatible with Honda Accord CRV Civic 90105-TBA-A00 90105TBAA00

The BOATSHIP Engine Cover Bolts are designed to fit multiple Honda models, including the Accord from 2014 to 2020. This compatibility ensures you can easily find the right fit for your vehicle, saving you time and hassle. They also work perfectly with Civic models from 2017 to 2020, giving you confidence that these bolts will secure your engine cover properly. Additionally, the bolts fit CRV models from 2017 to 2020, making them a versatile choice if you own different Honda vehicles. With four bolts included, you have everything needed to replace or secure your lower engine cover efficiently.

What We Like
Wide Honda model compatibility
Includes four bolts
Secure engine cover fit
Easy replacement
#TOP 4

Valve Cover Bolts Kit for Chevy 350 SBC Engines

Valve Cover Bolt
1/4-20 UNC
Valve Cover Bolts Kit for Chevy 350 SBC Engines Cover
Valve Cover Bolts Kit Compatible with Chevy 350 283 305 327 383 SBC Valve Covers Bolt Studs Small Block Chrome Steel Valve Covers with Black Oxide Finish

This Valve Cover Bolts Kit is designed for Chevy 350 283 305 327 383 SBC engines. The set of 8 chromed steel hex head bolts with black oxide finish is easy to install as direct replacement for Chevy 350 valve cover gasket bolts. The 1/4"-20 thread pitch bolts measure 1 3/8" in length while the studs measure 1 1/4" in length. The package comes with a 12-month warranty and the product is fitment tested before shipping.

What We Like
Easy to install as direct replacement for Chevy 350 valve cover gasket bolts
Set of 8 chromed steel hex head bolts with black oxide finish
Fitment tested before shipping
#TOP 5

LYHgogo RP1 M14 Bolt Cover Screw Set

LYHgogo
LM-2pcs
Black
1.14 inch
LYHgogo RP1 M14 Bolt Cover Screw Set Cover
LYHgogo RP1 M14 Upgrade Bolt Cover Screw Fastener (2pcs Black)

The LYHgogo M14 Bolt Cover is a convenient upgrade for your TG/M14 style equipment. It comes with two main bodies, four screws, and two wraps, giving you everything you need for installation. Made from anodized aluminum, the parts are durable and resistant to wear. The screw-locked design ensures quick and secure replacement, saving you time and effort. The bolt cover sits low inside, providing a sleek and unobtrusive fit. This set is perfect if you want a reliable and easy-to-install upgrade for your bolt cover screws.

What We Like
Complete installation kit
Durable anodized aluminum
Quick screw-locked replacement
Low-profile design
#TOP 6

GM Genuine Parts Engine Front Cover Bolt 11099551

GM GENUINE PARTS
11099551
1 inch
GM Genuine Parts Engine Front Cover Bolt 11099551 Cover
GM Genuine Parts 11099551 Engine Front Cover Bolt

The GM Engine Cover Bolt is designed to securely fasten important engine parts, helping keep your vehicle running smoothly. This bolt is crafted by GM engineers specifically for Chevrolet, Buick, GMC, and Cadillac models, ensuring a perfect fit and reliable performance. Using original equipment like this bolt means it works seamlessly with your vehicle’s safety systems, giving you peace of mind that aftermarket parts might not provide. Plus, GM continually improves their parts with new materials and technology, so you get a quality product that meets the latest standards and helps maintain your vehicle’s integrity.

What We Like
Secure fastening
OEM design and fit
Compatible with safety systems
Regular design updates
#TOP 7

LUYEJKO 40PCS Engine Dress Up Kit M6 Bolts

LUYEJKO
LY006
Black
One Size
LUYEJKO 40PCS Engine Dress Up Kit M6 Bolts Cover
LUYEJKO Engine Dress up Kit, 40 PCS Bumper Fender Washers ,M6 Dress up Bolts (Black)

The LUYEJKO Engine Dress Up Kit offers a set of 40 aluminum alloy washers and stainless steel bolts designed to enhance your vehicle’s look. Made with CNC aluminum and anodized for a sleek, durable finish, these washers are built to last and resist wear. The kit includes all necessary parts, so you have everything you need to secure fenders, bumpers, headlights, trunks, and more. Using this kit lets you customize your car or motorcycle engine bay, making your ride stand out while reflecting your personal style. Plus, installation and removal are simple, saving you time and effort during maintenance or upgrades.

What We Like
Durable aluminum washers
Stainless steel bolts
Complete 40-piece set
Easy installation
Versatile use
#TOP 8

GM Genuine Parts 55564507 Engine Front Cover Bolt

GM GENUINE PARTS
55564507
1/4 in
GM Genuine Parts 55564507 Engine Front Cover Bolt Cover
GM Genuine Parts 55564507 Engine Front Cover Bolt

The GM Front Cover Bolt is designed to securely fasten important engine components, ensuring your vehicle runs smoothly. This bolt is made by GM engineers who specifically design and test parts for Chevrolet, Buick, GMC, and Cadillac models, so you know it fits perfectly. Using original GM parts like this bolt helps maintain your vehicle's safety systems, which might not be guaranteed with aftermarket replacements. Plus, GM frequently updates their parts with new materials and technology, so you get a reliable and up-to-date product that supports your vehicle’s performance and safety.

What We Like
Secure fastening
OEM design and validation
Maintains vehicle safety
Updated materials and technology
#TOP 9

20Pcs/Set Bumper Fender Washers Fasteners Kit-Black

HT8062
Black
20Pcs/Set Bumper Fender Washers Fasteners Kit-Black Cover
20Pcs/Set Bumper Fender Washers Engine Bay Dress Up Bolts Fasteners M6 JDM Fender Washer Kit-Black

Upgrade the appearance of your vehicle with the 20Pcs/Set Bumper Fender Washers Fasteners Kit. Made from CNC aluminum with anodized technology, these washers and bolts are durable and ideal for various applications such as fenders, bumpers, and license plate frames. The kit includes 20 aluminum alloy washers and 20 stainless steel bolts (M6*20MM).

What We Like
Durable and long-lasting
Enhances vehicle appearance
Widely applicable to various parts
#TOP 10

STETION 25 Pcs Fender Bumper Washer Bolt Kit

SH-01817 SH19-0222
Black
Black
STETION 25 Pcs Fender Bumper Washer Bolt Kit Cover
STETION 25 Pcs Fender Bumper Washer Bolt 6061 T6 Grade M6x20mm CNC Finishing Washer Engine Bay Dress Up Fastener Kit (Black)

The STETION 25 Pcs Fender Bumper Washer Bolt Kit includes 25 premium quality aluminum and stainless steel washer bolts with a 19mm diameter and M6x20mm size, and 1 inner hexagon wrench for easy installation. These bolts are longer than many others out there, providing sufficient threaded bite length for safe and reliable use. Enhance the look of your vehicle's engine bay and exterior with this kit.

What We Like
Premium quality aluminum and stainless steel
Longer bolts for safe and reliable use
Enhances the look of vehicle's engine bay and exterior
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What size are valve cover bolts?

Valve cover bolts are typically 1/4" coarse thread X 5/8" long. To determine the right length, measure the thickness of the valve cover, the gasket, and the washer under the head.

2. Will a valve cover leak if one bolt is missing?

Yes, if one valve cover bolt is missing, it can cause a significant leak. To solve the problem, it is recommended to replace the missing bolt.

3. Will tightening valve cover bolts stop a leak?

Tightening valve cover bolts may help stop a leak, but it is not a guaranteed solution. It is advised to gently cinch down the bolts or use a torque wrench. Over-tightening can result in cracked aluminum valve covers or warped steel valve covers.

4. Do valve cover bolts need sealant?

While valve cover gaskets do not necessarily require sealers or cements, it is common practice to glue the gasket to the valve cover. Sealant choices like Permatex No. 1, RTVs, or Permatex High Tack gasket sealant are suitable for this application.

5. Can I drive my car with a broken valve cover bolt?

Yes, you can drive your car with a broken valve cover bolt, but it is important to regularly inspect it. If left unrepaired, the broken bolt can lead to oil leaks and potential distortion or damage to the valve cover, requiring replacement.

6. What can a loose valve cover cause?

A loose valve cover can lead to a valve cover gasket leak, which can cause extensive internal damage to your engine and related systems. While it may not pose an immediate risk of harm, it can result in vehicle failure or overheating, requiring costly repairs.

7. Why should valve cover screws never be tightened excessively?

It is better to undertighten than overtighten valve cover screws. Excessive tightening can damage the gasket, strip the threads, or even crack the valve cover. It is recommended to use a torque wrench to ensure proper tightening.

8. Should valve cover gaskets be installed dry?

Valve cover gaskets should be installed clean and dry. Make sure to remove any oil and cleaning solvents from the bolt holes and ensure the cover's sealing groove is clean. For installation, all old sealing material should be removed.

Editor's Notes

During our engine valve cover bolt research, we found 24 engine valve cover bolt products and shortlisted 10 quality products. We collected and analyzed 9,620 customer reviews through our big data system to write the engine valve cover bolts list. We found that most customers choose engine valve cover bolts with an average price of $16.29.

The engine valve cover bolts are available for purchase. We have researched hundreds of brands and picked the top brands of engine valve cover bolts, including 269 Motorsports, K-MOTOR PERFORMANCE, BOATSHIP, SHINEHOME, LYHgogo. The seller of top 1 product has received honest feedback from 96 consumers with an average rating of 4.7.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.