Eagle CRS5313B63D Forged 4340 H-Beam Connecting Rods for 1996-2006 BMW M52/S50

Vehicle Fitment

• 1996-2006 BMW 3-Series (E36/E46), 5-Series (E39/E60), 7-Series (E65) with M52 / M52TU / S50 / S52 / M54 engines

Fitment Notes

• Strictly for US-spec (pin & journal sizes match US-spec M52/S52/S50 etc.)
• Not compatible with 2007+ BMW models without verifying block dimensions and stroke
• Does not fit performance-variants outside listed engines if bottom end specs differ

Features

• Forged 4340 steel for high strength and durability
• H-beam rod design for improved stiffness under high RPM and boost
• Shot-peened and fully machined for stress relief and precise tolerances
• Multistage heat treatment, magnafluxed for crack detection
• Cap alignment sleeves to ensure correct rod cap alignment
• ARP 2000 bolts, high-grade fasteners for reliable cap retention
• Weight matched set (± ~1 g) to maintain balance across all six rods
• Recommended for performance use, suitable up to ~900 hp (dependant on supporting components)

Specifications

• Length (center-to-center): 5.313 in (≈ 135.00 mm)
• Housing bore (big end inside diameter): 1.890 in (≈ 48.00 mm)
• Pin diameter: 0.866 in (≈ 22.00 mm)
• Big end width: 0.863 in (≈ 21.92 mm)
• Pin end width: 0.863 in
• Rod journal: 1.771 in (≈ 45.00 mm)
• Typical rod weight: ≈ 540 g per rod
• Fastener torque spec: 43 ft-lbs with ARP moly lubricant on threads

Included Components

• 6x Eagle CRS5313B63D forged 4340 H-beam connecting rods
• 6x ARP 2000 cap bolts
• Cap alignment sleeves (where applicable or included by Eagle in the set)

Product Description

The Eagle CRS5313B63D is a premium performance connecting rod set engineered for BMW engines using the M52, M52TU, S50, S52, and M54 platforms (US-spec blocks). Forged from high quality 4340 steel, these H-beam rods deliver excellent strength, stiffness, and durability even under severe duty. All rods are fully machined, shot-peened, magnafluxed, and weight-matched to tight tolerances to improve engine balance, reduce vibration, and support high RPM reliability.

Designed for builds where high horsepower or forced induction is expected, these rods are rated for up to ~900 hp (depending on other engine components and tuning). Torque spec for the ARP 2000 bolts is 43 ft-lbs using ARP moly lube on threads. Fitment covers BMW 3-, 5-, and 7-Series models produced between 1996 and 2006 that use the aforementioned engines. Compatibility beyond 2006 is unconfirmed; always verify bore sizes and stroke before installation. Intended for serious street, track, or race builds where reliability and strength are essential.