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NISSAN D21 Bearings & Bearing Spacers
Showing In Stock Items. Show All 16 Items.
King XP-Series Main Bearings
Built with enhanced tri-metal, King XP-Series main bearings have a layered copper lead construction, with a nickel plate barrier and 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: an amazing +/- .0001 in. The XP-Series main bearings are narrowed for large radii crankshafts and feature enlarged, chamfered oil holes with full, 3/4 in., or 1/2 in. grooving for improved oiling. They deliver consistent and reliable performance with a high-load capacity. These race-only Xtreme Performance (XP-Series) Tri-Lecular main bearings are proven track-tough to handle the ground-shaking power of your race engine. Hundreds of sets are available; order the bearings recommended for your vehicle.
( 44 )
$85.99
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$139.99
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.
( 70 )
$46.99
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$73.99
King AM-Series Rod Bearings
King AM-Series rod bearings are recommended for street or marine applications. They have superior embeddability, which provides greater macro-particle and reduces scratching of the crank journals and tearing or weakening of the Babbitt overlays. The direct replacements feature tolerance control up to +/- .0001—and they're lead-free, making them environmentally friendly and user-safe. Order the King AM-Series rod bearings in the application designed for proper fitment with your vehicle.
( 30 )
$11.99
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$17.99
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.
( 33 )
$25.99
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$30.99
Sealed Power Connecting Rod Bearings
Sealed Power engine products are a complete system of application-engineered replacement components, including pistons, piston rings, engine bearings, camshafts, oil pumps, timing components and valvetrain products. Sealed Power connecting rod bearings are available with different linings to meet every engine's needs. They're made using either tri-metal or aluminum bi-metal construction for the utmost in performance and durability for all stock rebuilds and mild performance applications. Tri-metal alloys feature a steel base coated with a sintered layer of copper-lead alloy, followed by layers of electro-plated nickel and babbit to produce the ultimate bearings. Bi-metal aluminum types carry all of the same features without the babbit, as specified by many of today's top engine builders. Sealed Power bearings are available for a multitude of engines in sizes ranging from standard to 0.060 in. oversized.
( 8 )
$42.99
Enginetech Main Bearings
Enginetech main bearings are made of high-quality alloys, based on the application requirement. Manufactured on state-of-the-art equipment, this ensures consistent bearing thickness for proper oil clearances, and parting line chamfers are precisely controlled, guaranteeing they are cut at the correct angle to allow for the proper amount of oil bleed-through without reducing oil pressure. Thrust washers are included, where appropriate, when they are not already molded into the main bearing. The materials are high strength (load capacity), but also have good anti-friction properties (wear resistance, anti-seizure, and embeddability). Enginetech main bearings provide extra protection and better durability within your rebuild. Select the size needed.
Not Yet Reviewed
$37.99
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$40.99
Enginetech Rod Bearings
Enginetech rod bearings are made of high-quality alloys, based on the application requirement. They are made on state of the art equipment, ensuring consistent bearing thickness for proper oil clearances, and parting line chamfers are precisely controlled, ensuring they are cut at the correct angle to allow for the proper amount of oil bleed-through without reducing oil pressure. The materials are high strength (load capacity), but also have good anti-friction properties (wear resistance, anti-seizure, and embeddability). Enginetech rod bearings provide extra protection and better durability within your rebuild. Select the size needed.
Not Yet Reviewed
$21.99
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$29.99
King SI-Series Rod Bearings
King SI-Series rod bearings are recommended for OE applications. They're designed for aftermarket gasoline or diesel engine rebuilding and performance engines with OE crankshafts. These direct replacements have an improved finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. King SI-Series rod bearings also feature improved oil clearance to reduce wear and increase engine life—which, in turn, lessens operating noise, vibration, and excess oil flow. Hundreds of sets are available; order the bearings recommended for your vehicle.
( 99 )
$17.99
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$22.99
Sealed Power Main Bearing Sets
Today's engines operate under very demanding conditions. When these Sealed Power main bearing sets are used in performance applications, all components are pushed to their limits—and many must be changed to meet these special demands. Federal Mogul, a longtime supplier to both OEM and the aftermarket, has responded to this challenge with its tri-metal, copper-lead, high performance main bearing sets. They're tested in the lab and proven on the track. The bearings are available for various crankshaft undersizes, for direct replacement or performance usage on a wide range of specific applications.
( 98 )
$45.99
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$53.99
