Jims Tools Engine Main Bearing Repair Sleeve Tool

Jims Engine Main Bearing Repair Tools for Harley-Davidson Engines

Few components in an engine demand as much precision as the main bearings that support the crankshaft. Pressing them out with improvised tools, or tapping them in with a block of wood and a hammer, risks scoring the bearing bore or leaving the new bearing misaligned. Jims has built its reputation on specialty tooling made for exactly these jobs on Harley-Davidson engines, and its main bearing remover and installer tools are a good example of that focus.

Milwaukee-Eight Main Bearing Remover and Installer

The standout in this category is the Jims Main Bearing Remover and Installer, part number 5813. The Milwaukee Eight engine uses a completely unique engine case main bearing, so Jims designed a main bearing remover and installer just for that engine. The tool removes the left and right main bearing without damaging the case, and it also provides correct alignment and depth during installation. That combination of controlled removal and accurate seating is what separates a purpose-built tool from a general-purpose puller. Retailers also list it as made in the USA.

According to published fitment details, the tool is intended for M8-powered touring models, with coverage that includes H-D Road King, Electra Glide and Tri Glide variants from the 2017 model year onward. Always confirm fitment against your specific engine before ordering.

Why Precision Matters in Main Bearing Work

Jims approaches bearing service with an emphasis on protecting the case. In its tool catalog, the company describes designs that push on the outer diameter of bearings, preventing damage to the bearing or its bore. Case bores are expensive to repair and impossible to ignore once damaged, so tooling that pilots and supports the bearing during removal and installation is a sensible investment for anyone opening up a crankcase.

Jims also supplies related bearing tools across the engine and drivetrain, such as crankshaft bearing installers and removers for Twin Cam engines and main drive gear bearing tools for Harley transmissions. Those are generally classified in neighboring categories, but they reflect the same engineering approach: tools made for a specific bearing, case and application.

What to Consider Before You Buy

• Engine family: Main bearing tools are usually engine-specific. An M8 tool will not substitute for a Twin Cam or Evolution tool.
• Press or hand tool use: Review the instruction sheet so you know whether the job calls for a press, standard hand tools, or both.
• Case condition: Inspect the bearing bores for wear or damage while the bearings are out.
• Complementary tools: Seal installers and alignment tools are often needed to finish the job correctly.

Explore More

To see everything the manufacturer offers, visit the full Jims Tools brand page. For a wider look at options from other manufacturers, browse the complete Engine Main Bearing Repair Sleeve Tool category.