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BMW Internal Engine Parts

Rebuilding your engine or giving your cylinder head an overhaul? Internal engine components covers parts that are located within the engine block and cylinder head. Examples include: timing chains and tensioners, rocker arms, rod bolts and studs, head bolts, valve springs, connecting rods, and more. These are Genuine BMW engine parts, performance upgrades, or approved aftermarket brands that have a long track record of reliability and quality.

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JE Pistons Forged Aluminum Pistons - Standard Bore - BMW N54 3.0L
JE Pistons Forged Aluminum Pistons - Standard Bore - BMW N54 3.0L ...
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JE Piston - Corporate Logo
T#:1120850
Part#: JE338094
Ships on Nov 13, 2026
$ 1,349.99 USD
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JE designs are specifically engineered for extreme applications up to, and including, professional competition. In this environment, the higher compression ratios, highest boost or heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy. N54B30 84mm Bore 9.5:1 KIT 2618 T6 high tensile forged aluminum Dome and dishes feature smooth flowing radii for excellent flame travel. 1.0 x 1.2 x 2.8mm ring widths Rings Included
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JE Pistons Forged Piston Set Of 6 - 87.5mm Bore - 11.5:1 CR - E46 M3 S54B32
JE Pistons Forged Piston Set Of 6 - 87.5mm Bore - 11.5:1 CR - E46 M3 ...
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JE Piston - Corporate Logo
T#:599660
Part#: 297118
In Stock
$ 1,324.99 USD
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Features: Crown requires no deburring or preparation 2618 T6 high tensile forged aluminum New asymetrical FSR forging! State of the art asymmetrical skirt technology reduces friction and mass while providing a more rigid and durable platform In this environment, higher boost levels or heavy nitrous usage necessitate JE's wrought 2618 alloy FSR pistons include offset pins for quiet operation Pistons feature new Smooth Finished Crown process for excellent flame travel 1.0 x 1.2 x 2.8mm ring widths .827 x 2.250 straight wall carbon steel wrist pin provided Pin fitting, rings and wire locks included Specifications: Bore (in): 3.445 Bore (mm): 87.50 Top Compression Ring Thickness: 0.0400 Second Compression Ring Thickness: 0.0480 Oil Ring Thickness: 0.111 Forging Type: FSR Volume (cc): -13.80 Series: JE Pistons Piston Head Type: Inv Dome/Dish Pin Diameter (IN): 0.827 Compression Height: 1.271 Make: BMW Wrist Pin Style - floating or press fit: Floating Wall Type: CHAMFERED Wall Thickness (IN): 0.150 Ringset Part Number: JG1001-3445 Ring Brand: ProSeal Ringset Included: Yes Retainer Thickness: 0.063 Retainer Lock Style: Wire Lock Retainer Lock Part Number: 827-063-MW Retainer Diameter (IN): 0.827 Replacement Single Piston: 297118S Replaced By: 289132 Piston Pin Inside Diameter: 0.527 Piston Pin Material: 5115 LOW CARBON STEEL, CASE HARDENED Piston Material: 2618 Piston Pin Length (IN): 2.250 Piston Avg Wt: 332 Pin Offset: Yes Pin Brand: JE Pistons Pin Part Number: 827-2250-15-51C Pin Included: Yes Pin Diameter (mm): 21.00 Oil Rail Support Included: No Deck Clearance: -0.008
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CP-CARRILLO Connecting Rod Set - CARR Rod Bolts - BMW E30 M3 S14
CP-CARRILLO Connecting Rod Set - CARR Rod Bolts - BMW E30 M3 S14 ...
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CP Carrillo - Corporate Logo
T#:10128444
Part#: CAR-CRS-S14-CARR
Ships on Nov 13, 2026
$ 1,441.99 USD
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$ 1,441.99 USD
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Carrillo connecting rods are well known within pro racing and street performance circles for good reason; they produce a premium product that winning racers around the world depend on. Quality and pride go hand-in-hand at Carrillo Industries. Manufacturing a Carrillo rod is much more than cutting and forging, meeting production goals and shipping deadlines. Every Carrillo rod is made with the goal of winning in mind and the Carrillo rods are a proven performers in both street and racing S14 engines. Carillo's fasteners and "Carrilloy" rods has proven popular with all racers who want the best. Special Chrome-Moly based alloy Forged Rods Lightweight Design for low mass Vs. Stock Strong and proven in racing Excellent quality control Tight tolerances and balancing Includes High Quality Non-stretch CARR Rod Bolts Tech Notes: WMC Bolts are the standard hardware included and are an excellent fastener. For extreme output applications and all-out racing, the CARR bolt option holds maximum RPMs and HP levels.
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CP Carrillo Forged Piston Set - 94mm Bore, 11:1 Compression Ratio - E30 S14 2.3L
CP Carrillo Forged Piston Set - 94mm Bore, 11:1 Compression Ratio - E...
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CP Carrillo - Corporate Logo
T#:637130
Part#: CP-FPS-S14-2.3A
Special Order: No Guaranteed ETA
$ 899.99 USD
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Pistons are the backbone of any true hardcore racing engine and that’s where CP-Carrillo excels. Our Engineering department started off analyzing the competition, gathering industry data and deciding to make the highest level of pistons, period. The heart and soul of our pistons are built through our Engineering Department and its resources. This department is made up of several factors that push them ahead of the competition; Reverse Engineering, Design Experience and Flexibility, Analysis and R&D. As in racing, it takes a lot to be number one; here at CP-Carrillo we have it all and are number one in piston design, enabling our customers to come in first on race day.
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Carrillo Pro-H Connecting Rods w/ WMC Bolts - Set Of 4 - BMw N20 2.0L
Carrillo Pro-H Connecting Rods w/ WMC Bolts - Set Of 4 - BMw N20 2.0L...
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CP Carrillo - Corporate Logo
T#:25042509
Part#: SCR9101-4
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$ 1,230.99 USD
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Carrillo rods are your number one option for performance connecting rods! If you are looking to upgrade your N20 engine to handle greater power, we highly recommend these Pro-H connecting rods. Upgrading connecting rods in your engine can bring several benefits, particularly if you're looking to enhance performance, reliability, and overall durability. Here are some reasons why you might consider investing in upgraded connecting rods: Increased Strength: Upgraded connecting rods are often made from stronger materials, such as forged steel or titanium, compared to stock rods. This increased strength helps withstand higher levels of stress and load, making them suitable for high-performance applications. Improved Durability: Enhanced materials and manufacturing processes contribute to improved durability, reducing the risk of connecting rod failure, especially in high-stress situations. This is crucial for engines that undergo frequent high-speed or high-stress conditions, such as in racing or heavy-duty applications. Higher RPM Capability: Upgraded connecting rods are designed to handle higher engine RPM (revolutions per minute) without succumbing to fatigue or deformation. This is beneficial for those seeking increased horsepower and torque at higher engine speeds. Reduced Weight: Some upgraded connecting rods are engineered to be lighter while maintaining strength, contributing to a lower overall rotating mass in the engine. This can result in quicker revving, improved throttle response, and better overall performance. Enhanced Precision: Upgraded rods often undergo more precise machining processes, ensuring tight tolerances and improved balance. This precision can lead to better engine stability and reduced vibration, ultimately extending the life of engine components. Compatibility with High-Performance Builds: If you're planning on modifying your engine for increased horsepower through methods like turbocharging or supercharging, upgraded connecting rods become essential. They provide the necessary strength and reliability to handle the increased stresses associated with forced induction. Prevention of Catastrophic Failures: Upgrading connecting rods can act as a preventive measure against catastrophic engine failures. The improved strength and durability reduce the risk of a connecting rod breaking, which could lead to severe engine damage. Specifications: CC(in): 5.683 CC(mm): 144.35 Style: PRO-H Bolt Size: 3/8 Bolt Type: WMC Pin Width(in): 0.822 Pin Width(mm): 20.88 Big Width(in): 0.822 Bid Width(mm): 20.88 Big Bore(in): 2.1112 Big Bore(mm): 53.62 Pin Size: 22mm QTY: Set of 4 Founded by Fred Carrillo in 1963, Carrillo Connecting Rods was established with an unwavering commitment to uncompromising standards in manufacturing. Fred recognized that the relentless pursuit of speed demanded an equally fervent dedication to the quality of components. This foundational philosophy remains as strong today as it was at the inception of Carrillo in 1963. At CP-Carrillo, quality and pride are inseparable. The process of crafting a CP-Carrillo rod transcends mere forging, production targets, and shipping deadlines. The evolution of connecting rod design has become a collaborative effort involving skilled specialists. Each connecting rod is a precision symphony, with material specialists, forging experts, production craftsmen, design engineers, and engine specialists contributing their expertise and artistry. Customer feedback plays a pivotal role in our continuous product improvement. The close interaction between customers, engineering, and manufacturing fosters the most effective rod designs, enhancing accuracy and service—a value that becomes apparent during your engine build. CP-Carrillo's dimensional integrity stands unparalleled, setting a standard of excellence in the industry.
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Carrillo Forged Connecting Rod Set S54 E46 M3
Carrillo Forged Connecting Rod Set S54 E46 M3
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CP Carrillo - Corporate Logo
T#:373960
Part#: BMS5465472H06
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$ 1,845.99 USD
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Upgrade your engine's performance with Pro-H Connecting Rods by Carrillo – these fully forged rods are designed for enthusiasts who have supercharged their engines or added power-boosting modifications. If you frequently push your engine to high RPMs, this component is a must-have. Carrillo's connecting rods are the epitome of precision, strength, and quality, boasting over four decades of engineering excellence. These rods strike the perfect balance between lightweight construction and unmatched durability. Specifications: PE Width: 0.784in / 19.91mm BE Width: 0.784in / 19.91mm Bolt Size: 3/8 WMC BE Bore: 2.0866in / 53.000mm Pin Diameter: 21mm Length: 5.472in / 139.00mm Rod Bolt Diameter: 3/8 Rod Bolt Type: WMC Tool Steel
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Carrillo B48 Forged Connecting Rod Set - Includes WMC Rod Bolts - BMW B48 B46 2.0L
Carrillo B48 Forged Connecting Rod Set - Includes WMC Rod Bolts - BMW...
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CP Carrillo - Corporate Logo
T#:7624642
Part#: CAR-CRS-B48-WMC
In Stock
$ 1,399.99 USD
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Carrillo connecting rods are well known within pro racing and street performance circles for good reason; they produce a premium product that winning racers around the world depend on. Quality and pride go hand-in-hand at Carrillo Industries. Manufacturing a Carrillo rod is much more than cutting a forging, meeting production goals, and shipping deadlines. Every Carrillo rod is made with the goal of winning in mind and the Carrillo rods are a proven performer in both street and racing B48 engines. Carillo's fasteners and "Carrilloy" rods have proven popular with all racers who want the best. Special Chrome-Moly based alloy Forged Rods Lightweight Design for low mass Vs. Stock Strong and proven in racing Excellent quality control Tight tolerances and balancing Includes High-Quality Non-stretch WMC Rod Bolts
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87mm Pistons (+.60mm)
87mm Pistons (+.60mm)
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JE Piston - Corporate Logo
T#:383222
Part#: JE297173
In Stock at Vendor
$ 1,324.99 USD
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Elevate the performance of your BMW E36 M3 equipped with an S52 3.2L engine with JE Pistons 87mm Pistons (+.60mm). These pistons are meticulously crafted to deliver optimal engine performance and durability, ensuring a smooth and powerful ride. Perfect for enthusiasts looking to boost their BMW's power and efficiency.
  • Increased engine performance
  • Enhanced durability for prolonged engine life
  • Precision-engineered for perfect fitment
  • Compatible with BMW E36 M3 S52 3.2L engines
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JE Pistons Set Of 6 Pistons
JE Pistons Set Of 6 Pistons
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JE Piston - Corporate Logo
T#:5122283
Part#: 297119
Back Ordered
$ 1,324.99 USD
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JE Pistons are specifically engineered for extreme applications up to, and including, professional competition. In this environment, higher compression ratios, extreme boost levels and heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy found in every JE Piston. *Application Specific Forgings for an Optimized, Uniform Crown Thickness *Contact Reduction Groove to Minimize Frictional Drag *Accumulator Groove for Increased Top Ring Stability and Sealing *CNC-Machined Side Relief with Lower Support Band for Additional Skirt Strength *Honed Pin Bores, Double Pressure Fed Pin Oilers and Wire Locks Included *JE ProSeal Piston Rings are included with your JE Pistons
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JE Pistons Forged Piston Set - E36 S50B30
JE Pistons Forged Piston Set - E36 S50B30
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JE Piston - Corporate Logo
T#:600191
Part#: 361346
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$ 1,349.99 USD
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Building a high powered engine for road race, drag race, or full out competition racing? JE Pistons for your S50B30 US engine offer the ultimate in strength and reliability in a forged piston. Features: Ultra-high performance forged piston set Includes JE Pro Seal piston rings Includes wrist pins and pin locks No dish deburring or preparation needed Individually prepared inspection report of dimensional conformity Each piston individually serialized for complete traceability 23-point post-production inspection conducted by certified personnel Tighter tolerances on 14 critical areas of the piston All critical surfaces machined in dedicated Critical Manufacturing Cell Specifications: Bore (in): 3.396 Bore (mm): 86.25 Top Compression Ring Thickness: 0.0400 Second Compression Ring Thickness: 0.0480 Oil Ring Thickness: 0.111 Forging Type: FSR Volume (cc): -24.00 Series: JE Pistons Piston Head Type: Inv Dome/Dish Pin Diameter (IN): 0.866 Compression Height: 1.291 Make: BMW Wrist Pin Style - floating or press fit: Floating Wall Type: CHAMFERED Wall Thickness (IN): 0.180 Ringset Part Number: JG1001-3396 Ring Brand: ProSeal Ringset Included: Yes Retainer Thickness: 0.063 Retainer Lock Style: Wire Lock Retainer Lock Part Number: 866-063-MW Retainer Diameter (IN): 0.866 Replacement Single Piston: 361346S Piston Pin Inside Diameter: 0.506 Piston Pin Material: 5115 LOW CARBON STEEL, CASE HARDENED Piston Material: 2618 Piston Pin Length (IN): 2.250 Piston Avg Wt: 299 Pin Offset: Yes Pin Brand: JE Pistons Pin Part Number: 866-2250-18-51C Pin Included: Yes Pin Diameter (mm): 22.00 Oil Rail Support Included: No Deck Clearance: 0.030 Brand: JE Pistons
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