Isuzu 4HF1 4HG1 6HH1 6HK1 2003 2009 Chevrolet Kodiak and GMC TopKick with 7.8L Duramax 7800 Front and Rear Crankshaft Seal Remover and Installer Set Heavy Duty Diesel OEM Alternative J-41221-A

Front and Rear Crankshaft Seal Installer Kit applicable for 2003 - 2009 Chevrolet Kodiak and GMC TopKick with 7.8L Duramax 7800 Isuzu 4HF1 4HG1 6HH1 6HK1 inline 6 cylinder turbo diesel. Includes heavy duty aftermarket equivalents of J-41221-A / 8-9439-6856-0, J-41220 and J-41268 / 8-9439-6858-0. Used with Front Oil Seals BZ4219E, BZ4219F, 10950.285 and rear oil seals BZ4365E, 10950.286. This kit includes everything you need to remove and install the front and rear crankshaft oil seals and wear sleeves/oil slingers. The seals are installed with a draw screw working off a centering adapter. When used with the proper installation sleeve, the seals can be installed to their proper height.