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HomeUpgrade & Repair KitsRepair & Service KitsEnginesGeneral Engine Repair & Service Kits421-9728: Top End Engine Overhaul Kit
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Upgrade & Repair KitsRepair & Service KitsEnginesGeneral Engine Repair & Service Kits
421-9728: Top End Engine Overhaul Kit
421-9728: Top End Engine Overhaul Kit

TOP END OVERHAUL KIT FOR THE 3412E, MARINE ENGINE

Brand: Cat

Product Images
Aftercooler & Lines Install Gasket Kit
2.95 x 23.47mm 90A NBR O-Ring
100mm Long Taper Lock Steel Stud
3/8''-16 Cone Lock Nut
3/8''-16 Hex Nut
Oil Cooler and Lines Gasket Kit
Fuel Systemtem Gasket Kit
Expansion Tank Install Gasket Kit
0.8mm Thick Square Gasket
23.16mm Inside Diameter Seal-O-Ring
Secondary Fuel Filter
Engine Water Temperature Regulator
81mm Inner Diameter O-Ring Seal
Single Cylinder Head Install Kit
21.08mm Inner Diameter Lifter Guide Spring
Engine Oil Filter
0.8mm Thick Exhaust Flange Gasket
88.26mm Inside Diameter Seal-O-Ring
421-9728: Top End Engine Overhaul Kit

TOP END OVERHAUL KIT FOR THE 3412E, MARINE ENGINE

Brand: Cat

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Items included

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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
106-1792: 100mm Long Taper Lock Steel Stud
106-1792: 100mm Long Taper Lock Steel StudQuantity: 24
2N-2766: 3/8''-16 Cone Lock Nut
2N-2766: 3/8''-16 Cone Lock NutQuantity: 24
3E-6916: 3/8''-16 Hex Nut
3E-6916: 3/8''-16 Hex NutQuantity: 4
420-8612: Oil Cooler and Lines Gasket Kit
420-8612: Oil Cooler and Lines Gasket KitQuantity: 1
420-4426: Fuel Systemtem Gasket Kit
420-4426: Fuel Systemtem Gasket KitQuantity: 1
6V-0237: Expansion Tank Install Gasket Kit
6V-0237: Expansion Tank Install Gasket KitQuantity: 1
245-8342: 0.8mm Thick Square Gasket
245-8342: 0.8mm Thick Square GasketQuantity: 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
248-5513: Engine Water Temperature Regulator
248-5513: Engine Water Temperature RegulatorQuantity: 2
4L-8337: 81mm Inner Diameter O-Ring Seal
4L-8337: 81mm Inner Diameter O-Ring SealQuantity: 2
420-4961: Single Cylinder Head Install Kit
420-4961: Single Cylinder Head Install KitQuantity: 2
305-6843: 21.08mm Inner Diameter Lifter Guide Spring
305-6843: 21.08mm Inner Diameter Lifter Guide SpringQuantity: 24
1R-1808: Engine Oil Filter
1R-1808: Engine Oil FilterQuantity: 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
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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

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