National 99145 Engine Crankshaft Repair Sleeve

National 99145 Engine Crankshaft Repair Sleeve

National 99145 is a stainless steel engine crankshaft repair sleeve built for crankshaft sealing repair where the shaft surface has wear or groove damage. With a 1.457-inch shaft size and a 0.375-inch width on shaft, it provides a precise repair surface for front and rear applications across a wide range of Ford, Hyundai, Kia, Mazda, Toyota, and other vehicles.

Use this repair sleeve when you need a clean sealing surface for an engine crankshaft repair sleeve application on vehicles such as the Ford Escape, Hyundai Sonata, Kia Optima, and Mazda 3. The National 99145 part number is also referenced as KWK99145 for the same application.

Key Features

• Stainless steel construction for corrosion resistance and durability
• Flanged outside diameter: 1.781 in. (45.240 mm)
• Installation depth: 0.812 in. (20.620 mm)
• Overall width: 0.500 in. (12.700 mm)
• Width on shaft: 0.375 in. (9.530 mm)
• Shaft size range: 1.453-1.460 in. (36.910-37.080 mm)
• Engine crankshaft repair sleeve for sealing surface restoration

Detailed Description

National 99145 is a repair sleeve used to restore the sealing area on a crankshaft when the original surface is worn, scored, or grooved. Its stainless steel design and controlled dimensions help create a consistent running surface for the seal, while the flanged profile supports accurate placement during service. National has focused on premium sealing solutions for more than 75 years, and this part reflects that experience in a repair-focused component for modern and older vehicles alike.

Compatible vehicle coverage includes many front, rear, left, and right applications across Ford, Hyundai, Kia, Mazda, Toyota, Lexus, Acura, Honda, Jeep, Land Rover, Mitsubishi, Dodge, Chrysler, and others. Common search examples include National 99145 for Ford Escape front, Hyundai Sonata left or right, and Mazda 3 front crankshaft repair sleeve service.

What It Helps Fix

• Crankshaft seal leakage caused by a worn sealing surface
• Grooves or scoring on the crankshaft where the seal rides
• Repeat seal failure after prior repairs
• Oil seepage at the crankshaft seal area
• Surface wear that prevents proper seal contact

Installation Notes and Tips

Measure the shaft before installation and confirm it falls within the 1.453-1.460 inch range. Clean the crankshaft surface thoroughly before fitting the sleeve, and verify the installation depth and width on shaft against the service requirements for the vehicle. This part is used in applications such as Fits 2005-2019 Ford Escape, front; Fits 2011-2019 Hyundai Sonata, left; and Fits 2004-2019 Mazda 3, front, so always match the exact year, position, and any notes listed for the vehicle.

For fitment-based searches, this part is also relevant for Fits 2015-2019 Ford Mustang, front or rear, Fits 2012-2019 Kia Soul, left, and Fits 2013-2019 Toyota RAV4, rear. Confirm the position and any drivetrain notes before service.

Quality Assurance

National is recognized for sealing products backed by more than 75 years in the industry, with design support aimed at current vehicle service needs. Part number 99145 is built to the listed dimensional specifications for repair-sleeve applications and cross-references KWK99145.