SKU: 14079-6 | UPC: 807298114521
Manley 09+ BMW N55/S55 5.683IN H Beam Connecting Rod Set
Manley H-Beam connecting rods deliver reliable strength for 2009+ BMW models equipped with N55 or S55 engines including 135i 335i M3 M4 and more. This set of 6 rods measures 5.683 inches center-to-center with precision machining for direct replacement in high-performance builds. They support increased horsepower and RPM while maintaining balance and durability under boost.
Key Features
- Forged 4340 Steel Construction: Provides high tensile strength and fatigue resistance for demanding turbocharged applications
- H-Beam Design: Distributes stress evenly to handle over 1000 horsepower in N55 and S55 engines
- ARP 2000 Series Bolts: Rated to 260000 psi with 3/8-24 x 1.250 size for secure rod cap retention
- Lightweight at 595g per rod: Reduces rotating mass for quicker revving and improved throttle response
- Precision Dimensions: 2.165in BE bore 0.866in SE bore 2.008in rod journal 144.5mm length for OEM fit
Product Notes
- Small end bushed for full-floating piston pins
- Individually balanced to BMW OEM specifications
- Ships in protective tube to prevent damage
Installation Notes
- Professional installation recommended.
- Apply ARP Ultra-Torque assembly lube to bolts and big ends
- Torque ARP bolts to 65 ft-lbs with moly lube using OEM bearings
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2010-2013 | BMW | 1 Series | 135i |
| 2011 | BMW | 1 Series | 1M |
| 2011-2015 | BMW | 3 Series | 335i |
| 2011-2015 | BMW | 3 Series | 335i xDrive |
| 2013-2015 | BMW | 3 Series | 335is |
| 2015-2019 | BMW | 3 Series | M3 |
| 2016-2021 | BMW | 2 Series | M2 |
| 2015-2020 | BMW | 4 Series | M4 |
| 2014-2016 | BMW | 4 Series | 435i |
| 2014-2016 | BMW | 4 Series | 435i xDrive |
| 2010-2016 | BMW | Z4 | sDrive35i |
| 2011-2017 | BMW | X3 | xDrive35i |
| 2013-2015 | BMW | X1 | xDrive28i |
Why Choose Manley?
- Over 60 years in performance engine components
- Meets same standards as race-proven Sportsmaster and Pro Series
- CNC machined in USA for exact tolerances
Frequently Asked Questions
-
Q: Will these rods fit both N55 and S55 engines?
A: Yes they are direct replacements for all 2009+ BMW N55 inline-6 turbo and S55 twin-turbo engines with matching 144.5mm length -
Q: What material are the rods made from?
A: Forged from 4340 aircraft-quality steel with 100% ultrasonic testing and rifle-drilled oiling -
Q: What is the warranty and installation torque?
A: Lifetime warranty to original purchaser torque ARP bolts to 65 ft-lbs with moly lube professional install advised
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Protective cardboard tube 30in x 6in x 6in
- Weight: 8 lbs
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