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HomeUpgrade & Repair KitsRepair & Service KitsEnginesEngine Gasket Kits421-9723: Engine Overhaul (Top End) Kit
HomeUpgrade & Repair KitsRepair & Service KitsEnginesEngine Gasket Kits421-9723: Engine Overhaul (Top End) Kit
Parts included in this kit

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245-8342: 0.8mm Thick Square Gasket
245-8342: 0.8mm Thick Square GasketQuantity: 1
419-9849: Fuel Systemtem Gasket Kit
419-9849: Fuel Systemtem Gasket KitQuantity: 1
8F-4994: 23.16mm Inside Diameter Seal-O-Ring
8F-4994: 23.16mm Inside Diameter Seal-O-RingQuantity: 1
1R-0749: Secondary Fuel Filter
1R-0749: Secondary Fuel FilterQuantity: 2
4L-8337: 81mm Inner Diameter O-Ring Seal
4L-8337: 81mm Inner Diameter O-Ring SealQuantity: 2
248-5513: Engine Water Temperature Regulator
248-5513: Engine Water Temperature RegulatorQuantity: 2
305-6843: 21.08mm Inner Diameter Lifter Guide Spring
305-6843: 21.08mm Inner Diameter Lifter Guide SpringQuantity: 24
420-8545: Oil Cooler and Lines Gasket Kit
420-8545: Oil Cooler and Lines Gasket KitQuantity: 1
419-8601: Single Cylinder Head Install Kit
419-8601: Single Cylinder Head Install KitQuantity: 2
4H-9541: 0.8mm Thick Exhaust Flange Gasket
4H-9541: 0.8mm Thick Exhaust Flange GasketQuantity: 1
5S-1188: 88.26mm Inside Diameter Seal-O-Ring
5S-1188: 88.26mm Inside Diameter Seal-O-RingQuantity: 2
1R-1808: Engine Oil Filter
1R-1808: Engine Oil FilterQuantity: 2
219-6544: Aftercooler & Lines Install Gasket Kit
219-6544: Aftercooler & Lines Install Gasket KitQuantity: 1
3D-2824: 2.95 x 23.47mm 90A NBR O-Ring
3D-2824: 2.95 x 23.47mm 90A NBR O-RingQuantity: 1
3E-6916: 3/8''-16 Hex Nut
3E-6916: 3/8''-16 Hex NutQuantity: 4
2N-2766: 3/8''-16 Cone Lock Nut
2N-2766: 3/8''-16 Cone Lock NutQuantity: 24
106-1792: 100mm Long Taper Lock Steel Stud
106-1792: 100mm Long Taper Lock Steel StudQuantity: 28
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Factory Fit

This part is designed to fit your Cat equipment based on the manufacturer’s specifications.

Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.

Remanufactured

Non-Returnable

Kit

Replaced

Remanufactured

Non-Returnable

Kit

Replaced