Engine BoltAftermarket engine bolt (AC12109-40F00) for forklift engine assembly applications, supplied as a replacement for the original equipment manufacturer fastener. Engine bolts in critical applications such as main caps, connecting rod caps, and cylinder head are torque-to-yield or torque-plus-angle fasteners that stretch during installation and cannot reliably be reused. Bought by forklift engine rebuilders, machine shops, and fleet maintenance teams during overhauls where bolt integrity directly affects bearing crush, head gasket sealing, and the safety of the rotating assembly. Always installed new on critical joints, with clean threads and the correct lubricant, then torqued to the published specification.Aftermarket replacement part, cross-references original part number AC12109-40F00.Need help confirming fit? Call (562) 693-7748 with your serial number.Part number variants: AC12109-40F00, ac12109-40f00, AC1210940F00, ac1210940f00 ⚠ Warning: Some equipment has serial-number breaks that may not be reflected in the catalog. Contact us for clarification before ordering if uncertain.SCR Forklift Parts ships from Whittier, CA with next-day delivery available across the US when needed.
