BoostLine 5.906in Connecting Rod for Mitsubishi 4G63 7-Bolt, ARP 625+ - MI5906-866S+

BoostLine MI5906-866S+ is a single connecting rod for Mitsubishi 4G63 7-Bolt applications. Manufacturer data specifies a 5.906 in center-to-center length, 0.8661 in wrist pin diameter, 45 mm crank journal diameter. This configuration uses ARP 625+ rod bolts in a 3/8 x 1.500 size. BoostLine standard-series rods use forged 4340 steel and the brand’s patented three-pocket design for demanding performance engine combinations. Listed weight with bolts is 658 g.

Key Features & Specs:

• Brand: BoostLine
• Series: BoostLine
• Product Type: Connecting Rod
• Engine Application: Mitsubishi 4G63 7-Bolt
• Quantity: 1
• Material: Forged 4340 steel
• Center-to-Center Length: 5.906 in
• Wrist Pin Diameter: 0.8661 in
• Crank Journal Diameter: 45 mm
• Big End Bore: 1.8901 in
• Big End Width: 1.0382 in
• Small End Width: 1.000 in
• Rod Bolt Material: ARP 625+
• Rod Bolt Size: 3/8 x 1.500
• Rod Bolt Part Number: BT61501-625
• Weight With Bolts: 658 g
• Manufacturer Part Number: MI5906-866S+
• UPC: 00193564024176

Fitment:

• Mitsubishi 4G63 7-Bolt engine applications

Series Description: BoostLine connecting rods are forged from 4340 steel and use the brand’s patented three-pocket beam design, developed to support high cylinder-pressure performance applications while controlling rotating mass. The standard BoostLine series is positioned for demanding forced-induction, nitrous, street-performance, and racing combinations. Application-specific ARP fasteners and dimensional CMM inspection are part of the product program; exact dimensions and bolt grade vary by part number.