25264-Style Harmonic Balancer Puller and 551141-Style Installer Tool Set Compatible with Select GM LS Engines, Heavy-Duty Steel Crank Pulley Removal Installation Kit — Open-Box, 16% Off

[CHECK BOTH TOOLS BEFORE ORDERING] This kit combines a 25264-style harmonic balancer puller and a 551141-style installer, and the two tools do not have identical fitment. The puller requires a compatible clip-in / 3-jaw harmonic balancer design, while the installer supports a broader range of compatible GM LS/LT crankshafts. Do not confirm fitment by vehicle year or engine displacement alone. The puller is not confirmed for 2017 Suburban 5.3L L83.

[HEAVY-DUTY STEEL CONSTRUCTION] Built with solid steel components for dependable harmonic balancer service. The thick puller body, reinforced gripping jaws and sturdy threaded forcing screw help maintain stability under normal removal loads. The installer uses a strong threaded rod with washers and bearing components for controlled pressing, while the protective black finish helps resist routine surface wear and corrosion.

[2-IN-1 REMOVAL AND INSTALLATION KIT] Handle both sides of harmonic balancer service with one coordinated set. The puller removes compatible press-fit balancers without requiring tapped puller holes, while the installer threads into a compatible crankshaft to press the balancer back into position. Suitable for harmonic balancer replacement, crank pulley service, front crankshaft seal work and related engine repairs.

[STABLE GRIP AND CONTROLLED INSTALLATION] The puller uses three gripping points to engage matching areas behind a compatible harmonic balancer and helps distribute pulling force during removal. The installer assembly uses a threaded rod, washers and thrust-bearing structure to reduce turning friction while pressing the balancer into place. Correct centering and full engagement help provide smoother, more controlled service.

[STRAIGHTFORWARD SHOP OPERATION] Position the puller jaws securely on the compatible balancer, center the forcing screw and apply force gradually with the appropriate hand tool. For installation, lubricate the threads, fully engage the installer rod in the crankshaft and turn the nut to press the balancer into position. Package includes the puller and installer components shown. If you have any questions about fitment or use, please feel free to contact us.

2-IN-1 HARMONIC BALANCER SERVICE TOOL SET This set combines a 25264-style harmonic balancer puller with a 551141-style crank pulley / harmonic balancer installer for removal and installation service on compatible GM engine applications. IMPORTANT: THE TWO TOOLS HAVE DIFFERENT FITMENT Do not assume that an engine compatible with the 551141-style installer is automatically compatible with the 25264-style puller. PULLER FITMENT The puller is designed for select harmonic balancers with matching clip-in / 3-jaw engagement geometry and without conventional tapped puller holes. Common compatible-style applications may include select: - 5.3L GM applications - 5.7L LS1 - 6.0L LS2 - 6.2L LS3 - 7.0L applications Fitment depends on the actual harmonic balancer design. Before ordering, compare: - Balancer rear jaw-engagement areas - Clearance behind the balancer - Balancer diameter and profile - Center forcing-screw position - Available working clearance IMPORTANT EXCLUSION The puller is not confirmed for the 2017 Chevrolet Suburban 5.3L L83 application. Do not assume that all 5.3L engines, all LS/LT engines or all model years use the same harmonic balancer design. INSTALLER FITMENT The 551141-style installer is designed for compatible GM LS/LT crankshafts. The original 551141 application covers GM LS/LT Gen III, Gen IV and Gen V engines from 1997-current. Not compatible with 1992-1997 Gen II LT1 5.7L engines. Always verify the crankshaft thread before installation. HEAVY-DUTY STEEL CONSTRUCTION The puller features a thick steel body, reinforced gripping structure and sturdy forcing screw for dependable service. The installer uses a threaded rod, washers and bearing components to help provide smooth, controlled pressing force. 2-IN-1 SERVICE FUNCTION Use the puller for removal and the installer for reinstallation on compatible applications. Suitable for harmonic balancer replacement, crank pulley service, front crankshaft seal replacement and related engine maintenance. PACKAGE CONTENTS 1 x Harmonic Balancer Puller Assembly 1 x Harmonic Balancer Installer Assembly Installer Nut Washers Bearing Components USE NOTICE Keep the puller centered and make sure all jaws are fully engaged before applying force. Lubricate threaded contact surfaces before use. Stop if the puller jaws do not seat correctly or if the installer rod does not fully engage the crankshaft threads.