Engines & Components
Availability
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your daily driver.
Holley bolt-on fill cap kits allow you to put a fill cap or inspection plug anywhere they're needed. These particular kits make a great alternative to a stock fuel cell cap—or if you need a fill cap for that custom oil tank or valve covers you're building. Holley bolt-on fill cap kit additional features include: * CNC-machined from 6061 T-6 billet aluminum * Bright black anodized finish for corrosion protection * 2.17 in. 4-bolt style flange * Cap features a laser-etched "Holley Equipped" logo * Bolt-on fill cap with an O-ring seal (has 1.38 in. diameter opening) * Easy-to-grip screw-on cap * Thread 1 1/2 in.-12 * Stainless steel hardware included
( 6 )
$88.25
Hybrid Racing V2 slim oil caps are an elegant balance of form and function. Taking inspiration from fuel doors used by the aerospace industry, these caps are clean in appearance, provide improved valve cover to hood clearance, and are super easy to remove. Plus, they are for use on all Honda® and Acura® vehicles, and are available in Dust Black or Dust Red with inner design machining and crisp etching. Order your color today!
Not Yet Reviewed
$82.64
Ford Performance Parts 2018-19 Mustang GT Coyote engine covers are designed to finish off the look of your Coyote-powered muscle car. These decorative plastic covers mount over the fuel rails, injectors, and engine wiring. The covers include an oil filler neck to allow you to reuse the engine oil cap. They also feature foam isolators to help block out engine noise. Dress-up your engine bay with an engine cover kit from Ford Performance.
Not Yet Reviewed
$181.99
PRW main cap stud kits help eliminate main cap walk and also protect the threads in your engine block. The main cap studs work with the main caps to help strengthen the foundation for your next high horsepower build. These main cap fasteners come complete with hardened parallel-ground washers and quality hex-style nuts. Add confidence in the strength of your engine build when you use these PRW main cap stud kits.
( 6 )
$210.84
Keep your main caps secure with a set of Chevrolet Performance main cap fasteners. They are made from quality OEM materials and are built to strict tolerances to ensure a direct fit. You don't ever want to have a failure in your engine's rotating assembly. Pick up Chevrolet Performance main cap fasteners for maximum reliability.
( 6 )
$4.99
—
$13.99
Earl's Performance vented oil fill caps eliminate the need to modify your valve covers when adding a catch tank to your racing engine. These caps are required by most sanctioning bodies in racing applications. Choose from two versions—one that fits OEM valve covers (GM LS, GM Gen-V LT, and Ford Coyote); or the version designed to fit Holley cast aluminum GM LS valve covers. These billet aluminum vented oil fill caps feature a black anodized finish. Order the vented oil fill cap that best suits your application. Additional features and specs: * Internal baffle inside cap to help reduce transfer of oil to catch tank * Screws into valve cover like ordinary oil fill cap * -10 ORB (7/8 in.-14 straight thread) O-ring boss port for use with AN hose to catch tank or PCV * Use with O-ring port hose end AT849010ERL; or O-ring adapter AT985010ERL (straight) or AT949010ERL (90 degree)
( 9 )
$44.49
MotoRad produces these oil filler caps for nearly every domestic and import vehicle on the road today. MotoRad is the leading supplier of oil filler caps for both the original equipment market and the automotive aftermarket, ensuring you of a quality product.
( 1 )
$2.99
—
$43.99
ACDelco GM Genuine Parts engine oil fill caps provide the perfect OE replacements without breaking your budget. They are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Choose the cap style designed for fitment on your particular engine block.
( 15 )
$5.99
—
$21.99
Dress up your engine compartment while keeping oil in its place and the dirt at bay with Summit Racing™ valve cover oil fill caps. They're manufactured from high-quality material, providing a proper fit and seal to prevent oil loss. These round, steel caps are available to fit a variety of applications, including GM, Mopar, Ford, AMC, Jeep, and other make/model vehicles. Whatever your part needs, chances are Summit Racing™ has it!
( 37 )
$50.99
Dorman oil filler caps are constructed with durable rubber to provide a tight, heat-resistant seal for the valve cover. They effectively prevent debris from entering into the engine oil, helping to protect the engine from damage and ensuring engine longevity. These Dorman direct-fit oil filler caps are easy to install, and most (depending on application) are clearly marked with raised letters for quick identification under your hood.
( 7 )
$5.99
—
$16.99
A beautiful way to top of your oil! ZZPerformance billet oil fill caps replace your stock plastic cap with polished billet aluminum that will make your engine bay shine. The caps are available with or without the ZZP logo in different colors. Choose your favorite.
Not Yet Reviewed
$21.99
Rein Automotive engine oil filter housing caps fit European vehicles the way the original manufacturer intended. Designed to match or exceed the OE materials, they are available as direct-fit replacements for the specified vehicles. If your filter housing cap is difficult to remove or reinstall due to wear, select a new one from Rein for your vehicle. Additional features: * Prevents moisture and debris from entering and contaminating the system * Manufactured to strict engineering standards/specifications in materials and tolerances * Produced by an original equipment supplier.
Not Yet Reviewed
$18.99
PRW Main Cap Side Bolts uses premium grade Custom 4135 Steel rated at "aircraft" quality. Their side bolts are then specially heat-treated to 180,000 psi. This heat-treating procedure allows for total heat penetration which results in a stronger, more superior stud compared to lesser quality studs from other manufacturers. PRW main cap side bolts are then centerless ground after being heat treated and then thread rolled which assures better fatigue strength than having this process done before heat treatment. This manufacturing process may cost more to do but the results are well worth the extra effort.
Not Yet Reviewed
$25.98
Granatelli Motor Sports vented oil fill caps will eliminate the need to modify your valve covers when adding a catch tank to your racing engine (required by most sanctioning bodies in racing applications). An internal baffle inside the cap helps reduce transfer of oil to the catch tank. These billet aluminum vented oil fill caps screw into the valve cover like an ordinary cap and are made to fit stock or fabricated valve covers. They also serve as a thread adapter for a -10 AN ORB threaded breather. Order the cap style you need.
( 1 )
$19.95
—
$24.94
Crown Automotive oil filler caps are OE-style replacement parts for your Jeep. They are available to fit most Jeep and some Dodge/Chrysler applications.
( 2 )
$5.99
—
$7.99
Rein Automotive engine oil filler caps fit European vehicles the way the original manufacturer intended. Designed to be direct replacement for the OE cap, these quality replacements are made to match or exceed the OE materials used and are produced to the highest standards to ensure long service life. Order the recommended replacement to fit your application.
Not Yet Reviewed
$7.99
—
$16.99
URO Parts manufactures their engine oil filler caps to OEM dimensions and specs for easy installation. The quality materials they use resist engine heat and the harsh, pressurized lubricating system environment. Most of these replacements come from the same facilities as many well-known and much costlier European brands. That translates into reliability and savings for URO customers shopping for a new engine oil filler cap. They're available for a variety of Land Rover, BMW, Audi, VW, Chrysler, Dodge, Freightliner, Maybach, and Mini Cooper models from 1968 and up.
Not Yet Reviewed
$5.99
—
$24.99
Mishimoto Hoonigan oil filler caps deliver awesome style, plus matching bottle opener/multi-tool keychains. Teaming up with Hoonigan, an automotive culture powerhouse, Mishimoto engineered these limited-edition caps to endlessly drip style--not oil. They are CNC-machined from 6061billet aluminum and equipped with high-quality O-rings to ensure a tight seal. The bottle opener is also CNC-machined from billet aluminum. They are available anodized in either red or silver. Dress your engine bay for fun and excitement with the big "H" of Hoonigan oil filler caps from Mishimoto.
( 2 )
$69.95
Your oil filter is a key component in keeping your engine running smoothly. These Dorman oil filter canister caps are made of materials that meet or exceed your original equipment. Make sure that you keep your ride at its peak performance with Dorman oil filter canister caps.
( 2 )
$13.99
—
$64.99
Mopar Replacement engine oil filler caps are genuine OE replacements. That means your Chrysler, Dodge, Plymouth, or Jeep will receive the perfect part to repair and/or restore performance, just as it should be. The caps are made from quality materials to provide reliable, long service with the right fit, function, and value. Keep your oil reservoir sealed with Mopar Replacement engine oil filler caps.
( 3 )
$19.99
—
$24.99
aFe oil fill caps provide reliable performance with eye-catching good looks you'll love! Constructed from durable CNC-machined T-6061 billet aluminum, these caps are made to be strong, and come equipped with a new O-ring style gasket to ensure a positive seal. aFe oil fill caps have a flawless matte black finish with sleek black chrome screws surrounding the aFe logo.
Not Yet Reviewed
$86.10
Beck/Arnley oil filler caps supply an OE-fit to keep oil clean. If your cap is not sealing properly, it needs to be replaced. You can count on the selection of Beck/Arnley oil filler caps to deliver the proper fit and performance to maintain the lifeblood of your engine.
( 1 )
$9.99
—
$11.99
If you've lost your cap, prevent oil leaks with Motorcraft oil filler caps specifically made to fit your Ford vehicle. They are made of high-material, work perfectly, and look just like the OE components. They are the perfect replacements for your vehicle, resisting corrosion and abrasion to ensure long-lasting durability.
( 4 )
$9.99
—
$44.99
ACDelco Gold engine oil filter covers are high-quality replacements for many vehicles on the road today. They are primarily used on cartridge oil filters and protect the paper filtering media from debris and other outside contaminants that can damage the filter. These premium aftermarket oil filter covers are manufactured to meet or exceed your expectations for fit and performance.
Not Yet Reviewed
$89.99
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
