BoostLine BM5472-827 Connecting Rod Kit w/ ARP 2000 Bolts for BMW S54B32 139 mm

Vehicle Fitment

• BMW S54B32 3.2 L inline-6 engine (E46 M3 2001-2006, Z3 M Coupe/Roadster 2001-2002, Z4 M Coupe/Roadster 2006-2008)

Fitment Notes

• Engine-specific connecting rod set; not universal.
• Standard hardware: ARP 2000 bolts. ARP 625+ bolts available separately as an upgrade.

Features

• Forged from premium 4340 chromoly steel with BoostLine's patented three-pocket design.
• Up to 60% more bending strength and 20% lower tensile stress than conventional H-beam rods.
• Standard inclusion of ARP 2000 bolts provides high strength and reliability under extreme loads.
• Supports up to 1,500 HP on 6-cylinder applications--ideal for forced induction and high-RPM racing builds.
• Each rod undergoes 26-point CMM inspection, with individual dimension reports included.
• Application-specific design ensures precise fitment in BMW's S54B32 powerplant.

Specifications

• Part Number: BM5472-827
• Engine Application: BMW S54B32 (3.2 L I6)
• Center-to-Center Length: 139.00 mm (5.472 in)
• Pin End Bore: 21.00 mm (0.827 in)
• Big End Journal: 49.00 mm
• Rod Type: I-beam forged 4340 chromoly steel
• Weight (approx): 595 g per rod
• Fasteners: ARP 2000 3/8" bolts (standard)

Included Components

• 6x Forged connecting rods (139 mm length, S54B32 spec)
• 6x ARP 2000 3/8" rod bolts
• 1x Inspection report with measured specifications

Product Description

The BoostLine BM5472-827 Connecting Rod Kit is built exclusively for BMW's high-revving S54B32 engine found in the E46 M3, Z3 M, and Z4 M platforms. Forged from 4340 chromoly steel and featuring BoostLine's patented three-pocket I-beam design, these rods provide exceptional strength and reliability in high-stress racing or boosted applications.

Each kit comes standard with ARP 2000 fasteners for superior clamping force, with optional ARP 625+ upgrades available for extreme builds. Precision 26-point CMM inspection ensures exact tolerances, while the proven design supports up to 1,500 HP. Whether for competitive motorsports or high-output street builds, this rod set offers the performance foundation the S54 demands.