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Engine Block Crack Repair Products, Drill size (inches): 9/16 and 1-1/4

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Irontite Ductile Plugs use the finest quality iron to make your crack repair as tight and long lasting as can be. Merging metal has always been the best solution to restoring cracked cylinder blocks and heads.

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E, E-1, E-1 Special HSS Tap
SKU: 407-5305-90
High-Speed Steel (HSS) Tapered Tap designed for creating threads for E, E-1, and E-1 Special plugs, including diesel ductile iron plugs.
$172.88
Piece
E Automotive Ductile Iron Plugs, Box of 25
SKU: 401-2105-90
E Automotive Ductile Iron Plugs sold in boxes of 25. Features 1-inch thread length and 0.590-inch small end diameter. Recommended drill, reamer, and tap part numbers provided for installation within Irontite’s crack repair system.
$98.85
Box
3/4-12 J STANDARD CATERPILLAR PLUG
SKU: 452-2615-24
$53.15
Piece
E, E-1, E-1 Special 9/16" HSS Drill Bit
SKU: 407-5105-90
$44.92
Piece
7/8-12 J STANDARD CATERPILLAR REPAIR PLUG
SKU: 452-2615-44
$53.15
Piece
J, J-DRILLED HSS TAPERED TAP
SKU: 407-5313-10
J, J-Drilled HSS Tapered Tap. High-speed steel tap for preparing holes for “J” Solid and “J-2 Drilled” ductile iron plugs in casting repair.
$435.21
Piece
E-1 SPECIAL DIESEL IRON PLUG
SKU: 452-2605-94
It’s used to repair cracks or holes in various engine components.
$13.71
Piece
$6.86
Piece
E-1 SOLID DIESEL IRON PLUG
SKU: 452-2605-91
E-1 Solid Diesel Iron Plug sold individually. Specifications include a 1 7/16 inch thread length and a 0.590 inch small end diameter. Recommended drill, reamer, and tap part numbers provided.
$8.69
Piece
E, E1, E1-Special HSS Tapered Reamer
SKU: 407-5205-90
HSS Tapered Reamer (407-5205-90) for precisely preparing holes for E, E-1, and E-1 Special plugs. Essential for crack repair and extending tap life.
$178.43
Piece
J-2 Drilled Diesel Ductile Iron Repair Plug
SKU: 452-2613-14
J-2 Drilled Diesel Ductile Iron Repair Plug. Drilled ductile iron plug with a ½” hole, 1 ½” thread length, and 1.312” small end diameter. Used for cold crack repair in diesel castings.
$53.96
Piece
J HSS Tapered Reamer for Cummins ISX15/QSX15 Series Castings
SKU: 407-5213-10
J HSS Tapered Reamer. Used for reaming injector holes in Cummins ISX15/QSX15 engines prior to tapping for “J” Plugs.
$433.60
Piece
J SOLID DIESEL IRON PLUG
SKU: 452-2613-13
Need a reliable seal for your diesel engine? Look no further than our J size Solid Iron Diesel Plugs/Pins. Made from premium ductile cast iron and stress-relieved for optimal performance, these plugs offer a durable and long-lasting solution for your engine’s needs.
$44.99
Piece
Counter Bore Cutter (1-1/4" Diameter), Cummins ISX15/QSX15
SKU: 434-6513-20
Enlarging Counter Bore Cutter (1-¼” Diameter) for Cummins ISX15/QSX15 DOHC & SOHC Engines. Used to prepare the injector hole for repair.
$291.68
Piece