BMW Z4 Engines & Components

King XP-Series Rod Bearings

King XP-Series rod bearings feature advanced metallurgical and geometric technologies that meet extreme performance loads. They were developed for all performance applications that use forged steel aftermarket crankshafts and produce high loads for extended periods. King focuses on one product—bearings—and nothing else. Their innovative race-only Xtreme Performance Max Black Tri-Metal rod bearings have a 24 percent stronger overlay and 17 percent more fatigue strength by using a micro process called SecureBond. Built with enhanced tri-metal, King XP-Series rod bearings layer copper-lead construction with a nickel plate barrier and a lead/tin/copper Babbitt overlay over a steel backing in an adhesion process that provides superior stability and durability. King's advanced control measures hit a bull's-eye, maintaining wall thickness tolerances far tighter than their competitors—at an amazing +/- .0001 in.! XP-Series rod bearings are narrowed on the crank cheek side with increased crush height for improved bearing-to-bore contact, heat transfer, and reduced spin potential in high-rpm applications.

4.53 out of 5 stars ( 73 )

$177.99

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$189.99

King AM-Series Main Bearings

King AM-Series main bearings are recommended for street or marine applications. These crankshaft bearings have superior embeddability, which provides greater macro-particle to reduce scratching of the crank journals and tearing or weakening of the Babbitt overlays. King AM-Series main bearings feature tolerance control to within plus or minus .0001—and they're lead-free, making them environmentally-friendly and user-safe. Hundreds of performance sets are available; order the replacement bearings designed to fit your vehicle.

4.24 out of 5 stars ( 33 )

$101.99

URO Parts Valve Covers

URO Parts valve covers supply the perfect fit to top your European engine. They adhere to the highest standards in precision, materials, and workmanship to provide OE-quality with a trouble-free install.

Not Yet Reviewed

$202.99

URO Parts Oil Pans

Oil is the lifeblood of your engine, so it deserves a superior reservoir--such as one of these URO Parts oil pans. Available in a variety of finishes and materials for long-lasting durability, each oil pan is manufactured to OEM specifications, ensuring a precise fit without any modifications. Leaks, rust, damage, or an engine rebuild are all good reasons to install a new oil pan. Offered for a wide variety of makes and models, with various configurations, capacities, and sump styles; it's easy to find the correct URO Parts oil pan to fit your European car or SUV--and keep the vital lubricants flowing. Oil pan gaskets, drain plugs, drain plug gaskets are sold separately.

Not Yet Reviewed

$163.99

Standard Motor Variable Valve Timing Eccentric Shaft Sensors

Standard Motor variable valve timing eccentric shaft sensors are used as a feedback for Valvetronic eccentric camshafts. The shaft is actuated by the Valvetronic motor, helping to improve fuel economy and emissions. Improve your vehicle's performance due to a worn or faulty eccentric shaft sensor with the proper part from Standard Motor Products.

Not Yet Reviewed

$209.99

Continental Accessory Drive Belt Kits

Continental accessory drive belt kits give you the ease and convenience of having all the right parts in one place, right when you need them. Belts, tensioners and idlers work as a system, and replacing a single component in the system is not recommended. Continental accessory drive belt kits include the belt, plus automatic tensioner and idler pulley (where applicable), to replace all the components at the same time, preventing a complete system interruption and costly repairs. All parts meet or exceed OE recommendations and are guaranteed for OE fit, form, and function on import and domestic vehicles.

5.0 out of 5 stars ( 8 )

$133.99

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$238.99

King SI-Series Main Bearings

King SI-Series main bearings are recommended for OE applications. These replacement bearings are designed for aftermarket gasoline or diesel engine rebuilding—and performance engines with factory crankshafts. The bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. King SI-Series main bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow. Order the bearing set designed for fitment on your make and model.

4.03 out of 5 stars ( 89 )

$159.99

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$168.99

Clearance

INA Timing Chain Kits

Many engines use a timing chain, which joins the crankshaft to the camshaft, providing precise valve timing control. Worn and stretched chains can lead to catastrophic engine failure. Fortunately, INA timing chain kits offer the necessary parts to keep your engine running in perfect timing. Along with the chain and chain protection additive, most kits include new tensioners, guides, and sprockets. Order the model recommended for your vehicle application.

5.0 out of 5 stars ( 2 )

$168.99

$122.50

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$206.99

Dorman Valve Covers

Save time and money! Dorman offers a large selection of valve covers constructed from high-quality plastic, steel, or aluminum that resist warping, cracking, and porousness. The metals are corrosion-resistant, and all covers come with the appropriate number of gaskets to provide tight, lasting seals against oil leaks. They are all direct replacements to ensure a proper fit every time. Order the valve covers designed for your specific make/model or engine.

4.84 out of 5 stars ( 49 )

$232.99

Dorman Variable Valve Timing Solenoids

Dorman variable valve timing solenoids will restore the fuel efficiency and normal operation of your vehicle. These direct replacement solenoids are engineered from quality materials for a proper fit and years of effective performance. They easily plug into the electrical harness and come conveniently packaged with the installation gasket (where applicable). Maintain proper oil flow and pressure with Dorman variable valve timing solenoids.

4.78 out of 5 stars ( 41 )

$133.99

Standard Motor Variable Cam Timing Solenoids

Standard Motor variable cam timing solenoids are direct-fit OE replacements for your vehicle's original components. These solenoids effectively restores engine horsepower and torque curves while reducing emissions and improving vehicle efficiency. Standard variable cam timing solenoids have been manufactured to exceed OEM specifications for dependable, accurate, maintenance-free operation.

5.0 out of 5 stars ( 5 )

$108.99

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$153.99

King XP-Series Coated Main Bearings

Give your engine the winning edge with King XP-Series coated main bearings. Built off the revolutionary XP-Series tri-metal construction, King's factory-applied pMaxKote™ nano-composite coating takes protection to the next level without adding any additional thickness! Order the replacement main bearings designed for fitment with your engine. pMaxKote™ provides: * Superior seizure resistance * Superior cavitation resistance * Superior wear resistance * Superior protection against oil starvation

4.5 out of 5 stars ( 8 )

$179.99

Continental Accu-Drive Tensioners

Continental Accu-Drive tensioners are designed so that the belt tension, frictional damping, and amount of belt take-up are ideal for your application. All Continental Accu-Drive automatic belt tensioners meet or exceed OEM specifications for all major car manufacturers.

4.34 out of 5 stars ( 29 )

$102.99

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$133.99

Rein Automotive OE Quality Valve Covers

Rein valve covers are designed and manufactured to be direct replacements for OE units. They have identical dimensions as factory originals—and are manufactured to strict engineering standards, using high quality materials to prevent leaks and warping. The engine valve covers are supplied with a premium gasket to prevent leaks, as well as hardware for easy installation. Most models are supplied with an integrated breather valve. Order the cover recommended for your vehicle and engine application.

5.0 out of 5 stars ( 1 )

$203.99

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$232.99

King XP-Series Coated Rod Bearings

Give your engine the winning edge with King XP-Series coated rod bearings. Built off the revolutionary XP-Series tri-metal construction, King's factory-applied pMaxKote nano-composite coating takes protection to the next level without adding any additional thickness! These high performance race bearing sets are available for fitment on a wide range of specific vehicle applications. pMaxKote provides: * Superior seizure resistance * Superior cavitation resistance * Superior wear resistance * Superior protection against oil starvation

4.2 out of 5 stars ( 10 )

$204.99

Beck/Arnley Variable Valve Timing Solenoids

Beck/Arnley variable valve timing solenoids are direct-fit OE replacements to facilitate ease of installation and factory-style performance. They're made of high-quality materials to withstand extreme conditions, and they undergo extensive testing to ensure reliability. The solenoids are available for a wide range of vehicle applications.

5.0 out of 5 stars ( 1 )

$105.99

Rein Automotive OE Quality Oil Pan Kits

Rein Automotive OE-quality oil pan kits are made with premium materials and manufactured to be direct-fit replacements. Rein oil pans are designed to tight tolerances to ensure proper sealing. Order the model you need.

Not Yet Reviewed

$114.99