Caterpillar

Select Equipment

Select equipment to view parts that fit your equipment.
No suggested results. Try again.
Register
Caterpillar

Add Equipment

To find the parts that fit.To find the parts that fit.
Search for part number or name

Select Equipment

HomeUpgrade & Repair KitsRepair & Service KitsEnginesEngine Gasket Kits421-9725: Engine Overhaul (Top End) Kit
Home
Upgrade & Repair KitsRepair & Service KitsEnginesEngine Gasket Kits
421-9725: Engine Overhaul (Top End) Kit
421-9725: Engine Overhaul (Top End) Kit

Marine Bundled Repair Solution, 3412 Engine Overhaul

Brand: Cat

Product Images
21.08mm Inner Diameter Lifter Guide Spring
Engine Oil Filter
94.84mm Inside Diameter Seal-O-Ring
Heat Exchanger Install Gasket Kit
2.46 x 19.18mm 78A HNBR O-Ring
Single Cylinder Head Install Kit
1.2mm Thick Cylinder Block Cover Gasket
0.35mm Thick Metal Coated Gasket
Engine Water Temperature Regulator
Secondary Fuel Filter
2.95 x 23.47mm 70A EPDM O-Ring
Aftercooler & Lines Install Gasket Kit
Oil Cooler and Lines Gasket Kit
Fuel Systemtem Gasket Kit
3/8''-16 Hex Nut
3.53 x 53.57mm 75A FKM O-Ring
100mm Long Taper Lock Steel Stud
421-9725: Engine Overhaul (Top End) Kit

Marine Bundled Repair Solution, 3412 Engine Overhaul

Brand: Cat

Check Price
Check Price
Login to view your customer price
Warranty Information
Return Policy
Items included

No results available.

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
3E-6773: 94.84mm Inside Diameter Seal-O-Ring
3E-6773: 94.84mm Inside Diameter Seal-O-RingQuantity: 2
420-4427: Heat Exchanger Install Gasket Kit
420-4427: Heat Exchanger Install Gasket KitQuantity: 1
114-4427: 2.46 x 19.18mm 78A HNBR O-Ring
114-4427: 2.46 x 19.18mm 78A HNBR O-RingQuantity: 2
420-4423: Single Cylinder Head Install Kit
420-4423: Single Cylinder Head Install KitQuantity: 2
198-1517: 1.2mm Thick Cylinder Block Cover Gasket
198-1517: 1.2mm Thick Cylinder Block Cover GasketQuantity: 1
226-4753: 0.35mm Thick Metal Coated Gasket
226-4753: 0.35mm Thick Metal Coated GasketQuantity: 2
248-5513: Engine Water Temperature Regulator
248-5513: Engine Water Temperature RegulatorQuantity: 2
1R-0749: Secondary Fuel Filter
1R-0749: Secondary Fuel FilterQuantity: 2
6V-5063: 2.95 x 23.47mm 70A EPDM O-Ring
6V-5063: 2.95 x 23.47mm 70A EPDM O-RingQuantity: 1
176-8167: Aftercooler & Lines Install Gasket Kit
176-8167: Aftercooler & Lines Install Gasket KitQuantity: 1
420-6457: Oil Cooler and Lines Gasket Kit
420-6457: Oil Cooler and Lines Gasket KitQuantity: 1
420-5696: Fuel Systemtem Gasket Kit
420-5696: Fuel Systemtem Gasket KitQuantity: 1
3E-6916: 3/8''-16 Hex Nut
3E-6916: 3/8''-16 Hex NutQuantity: 8
124-1858: 3.53 x 53.57mm 75A FKM O-Ring
124-1858: 3.53 x 53.57mm 75A FKM O-RingQuantity: 1
106-1792: 100mm Long Taper Lock Steel Stud
106-1792: 100mm Long Taper Lock Steel StudQuantity: 24
Showing 1 to 17 of 17
DescriptionSpecificationsCompatible Models
Specifications for part number 421-9725

We are still working on adding a specification for this part.

Compatible Models for part number 421-9725

We currently do not have compatibility information for this part.

KeyKey
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

Chat with an expert