ACL 8B1808HX-STD Race Series Rod Bearing Set STD +.001" for Gen III Hemi 5.7 6.1

Vehicle Fitment

• 2003-2025 Ram 1500 - 5.7L Hemi V8 (Eagle/ESB)
• 2014-2025 Ram 2500/3500/4500/5500 - 6.4L Hemi V8 (ESG/ESH)
• 2011-2025 Ram 2500/3500 - 5.7L Hemi V8
• 2019-2025 Ram 1500 Classic - 5.7L Hemi V8
• 2005-2025 Chrysler 300 / 300C - 5.7L & 6.1L Hemi V8
• 2007-2009 Chrysler Aspen - 5.7L Hemi V8
• 2006-2025 Dodge Charger - 5.7L, 6.1L, 6.2L (Hellcat/Redeye), 6.4L Hemi V8
• 2009-2025 Dodge Challenger - 5.7L, 6.1L, 6.2L (Hellcat/Demon/Redeye), 6.4L Hemi V8
• 2006-2009 Dodge Durango - 5.7L Hemi V8
• 2011-2025 Dodge Durango - 5.7L & 6.4L Hemi V8
• 2005-2008 Dodge Magnum - 5.7L & 6.1L Hemi V8
• 2005-2025 Jeep Grand Cherokee - 5.7L, 6.1L, 6.2L (Trackhawk), 6.4L Hemi V8
• 2021-2025 Jeep Grand Cherokee L - 5.7L Hemi V8
• 2006-2010 Jeep Commander - 5.7L & 6.1L Hemi V8
• 2021-2023 Ram TRX - 6.2L Supercharged Hemi V8 (Hellcat)
• 2022-2025 Jeep Grand Wagoneer - 5.7L Hemi V8 (naturally aspirated)

Fitment Notes

• Fits all Gen III Hemi engine codes: ESB (5.7L), ESF (6.1L), ESG/ESH (6.4L), ESD/ESJ (6.2L Supercharged)
• Standard (STD) crankshaft journal size with +.001" (0.025mm) extra oil clearance - bearings are thinner than standard to increase oil film thickness
• HX suffix = extra oil clearance; this is preferred by engine builders targeting wider clearances for boosted or high-RPM applications
• Always measure crankshaft rod journals with a micrometer before ordering to confirm standard diameter
• Sold as a set of 8 bearing shells (2 halves x 4 journals per bank x 2 banks)

Features

• ACL Race Series tri-metal construction - high-strength overlay plate with reduced thickness for superior fatigue resistance under high RPM and boost
• +.001" extra oil clearance over standard - provides a thicker hydrodynamic oil film ideal for forced induction and high-output builds
• Hardened steel backing on all shells - improves bearing lining support and positive retention in the rod housing
• Increased bearing crush over OEM - prevents shell movement and reduces risk of bearing spin under high load
• No flash plating on the back - maximizes heat transfer through the bearing and increases grip on the housing bore
• Increased eccentricity - compensates for rod bore distortion at elevated RPM and promotes stable hydrodynamic oil film formation
• Enlarged ID chamfers - accommodates larger fillet radii found on performance and aftermarket crankshafts
• Tight, consistent wall tolerances - ensures reliable, repeatable oil clearances across all 8 journals

Specifications

• Part Number: 8B1808HX-STD
• Size: Standard (STD) crankshaft journal
• Oil Clearance: +.001" (0.025mm) extra clearance (HX)
• Bearing Series: Race Series H
• Bearing Material: Tri-Metal
• Width: 0.738 in.
• Outside Diameter (Max): 2.2527 in.
• Outside Diameter (Min): 2.2522 in.
• Shaft Diameter (Max): 2.1263 in.
• Shaft Diameter (Min): 2.1257 in.
• Max Wall Thickness: 0.0619 in.
• Engine Configuration: V8 OHV (Gen III Hemi)
• Quantity: Set of 8 bearing shells
• Warranty: ACL standard manufacturer's warranty

Included Components

• 8x ACL Race Series Rod Bearing Shells (Standard Size, +.001" Extra Oil Clearance)

Product Description

The ACL 8B1808HX-STD is a Race Series tri-metal connecting rod bearing set engineered for the Gen III Hemi V8 engine family, covering the 5.7L, 6.1L, 6.2L Supercharged (Hellcat/Redeye/Demon), and 6.4L (392) Hemi as found across the Ram truck, Dodge Challenger, Dodge Charger, Chrysler 300, and Jeep Grand Cherokee platforms from 2003 through 2025. The HX designation means these bearings are machined to standard crankshaft journal dimensions but are 0.001" thinner than stock, providing an additional 0.001" of oil clearance over a standard-size bearing.

This extra clearance is a popular choice among engine builders constructing high-output, turbocharged, or supercharged Hemi builds - such as Hellcat swaps, stroker engines, or track-prepped Gen III applications - where a slightly wider oil film helps protect bearing surfaces under sustained high load. ACL Race Series bearings improve on OEM in every critical area: hardened steel backing for positive retention, increased crush to prevent spin, no flash plating on the back for better heat transfer, and increased eccentricity to compensate for bore distortion at elevated RPM. A full set of 8 shells is included, covering all 8 rod journals across both cylinder banks. Always verify crankshaft journal dimensions before ordering.