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HomeUpgrade & Repair KitsUpgrade KitsPerformance & Productivity609-9666: Auxiliary Cooler Kit
HomeUpgrade & Repair KitsUpgrade KitsPerformance & Productivity609-9666: Auxiliary Cooler Kit
609-9666: Auxiliary Cooler Kit

Roof mounted auxiliary hydraulic cooler provides additional hydraulic cooling capacity. For use in heavy duty applications (i.e. mulching, brush cutting, etc.) where the machine is utilized at ambient temperatures greater than 38°C (100°F).

Brand: Cat

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609-9666: Auxiliary Cooler Kit
609-9666: Auxiliary Cooler Kit
609-9666: Auxiliary Cooler Kit

Roof mounted auxiliary hydraulic cooler provides additional hydraulic cooling capacity. For use in heavy duty applications (i.e. mulching, brush cutting, etc.) where the machine is utilized at ambient temperatures greater than 38°C (100°F).

Brand: Cat

Warranty Information
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Parts included in this kit

No results available.

621-0432: Auxiliary Cooler Wiring Harness
621-0432: Auxiliary Cooler Wiring HarnessQuantity: 1
639-8821: Hydraulic Oil Cooler Lines Tube
639-8821: Hydraulic Oil Cooler Lines TubeQuantity: 1
639-8674: High Temperature Fuel Hose Assembly
639-8674: High Temperature Fuel Hose AssemblyQuantity: 1
651-5632: Hydraulic Oil Cooler Cover
651-5632: Hydraulic Oil Cooler CoverQuantity: 2
220-6381: M8-1.25 x 40mm Hex Head Bolt
220-6381: M8-1.25 x 40mm Hex Head BoltQuantity: 1
443-9483: M10x1.5 Steel Wing Screw
443-9483: M10x1.5 Steel Wing ScrewQuantity: 3
639-8818: Hydraulic Oil Cooler Lines Tube
639-8818: Hydraulic Oil Cooler Lines TubeQuantity: 1
644-3269: Hydraulic Lines Dust Cap
644-3269: Hydraulic Lines Dust CapQuantity: 4
102-8703: 3mm Thick Clamp Cover Plate
102-8703: 3mm Thick Clamp Cover PlateQuantity: 1
648-7681: Hydraulic Oil Cooler Mounting Bulk Seal
648-7681: Hydraulic Oil Cooler Mounting Bulk SealQuantity: 110
7K-1181: 387.00mm Length Cable Strap
7K-1181: 387.00mm Length Cable StrapQuantity: 21
8T-4136: M10-1.5 x 25mm Hex Head Bolt
8T-4136: M10-1.5 x 25mm Hex Head BoltQuantity: 4
8T-4226: M10 ID Steel Flat Washer
8T-4226: M10 ID Steel Flat WasherQuantity: 4
6V-9746: 1.78 x 18.94mm 90A NBR O-Ring
6V-9746: 1.78 x 18.94mm 90A NBR O-RingQuantity: 2
521-6105: Hydraulic Pump Fluid Lines Clamp
521-6105: Hydraulic Pump Fluid Lines ClampQuantity: 2
630-9951: Hydraulic Oil Cooler Gas Spring
630-9951: Hydraulic Oil Cooler Gas SpringQuantity: 2
206-2728: 76.2mm Inner Diameter Hose Guard
206-2728: 76.2mm Inner Diameter Hose GuardQuantity: 124
190-4375: M24 ID Steel Flat Washer
190-4375: M24 ID Steel Flat WasherQuantity: 3
375-8402: 12V Suppression Diode Relay
375-8402: 12V Suppression Diode RelayQuantity: 1
1A-8912: Washer
1A-8912: WasherQuantity: 1
5P-0743: Bulk Hose
5P-0743: Bulk HoseQuantity: 19
651-5621: Hydraulic Oil Cooler Base
651-5621: Hydraulic Oil Cooler BaseQuantity: 1
148-8357: ELBOW AS
148-8357: ELBOW ASQuantity: 2
323-3308: Hydraulic Oil Cooler Lines Cap
323-3308: Hydraulic Oil Cooler Lines CapQuantity: 1
7X-7729: M10 ID Steel Flat Washer
7X-7729: M10 ID Steel Flat WasherQuantity: 4
8T-0154: 18.80mm Internal Diameter Standard Hose Clamp
8T-0154: 18.80mm Internal Diameter Standard Hose ClampQuantity: 1
7J-9108: 1.78 x 15.72mm 90A NBR O-Ring
7J-9108: 1.78 x 15.72mm 90A NBR O-RingQuantity: 1
488-3974: M10x1.5 Hex Head Bolt
488-3974: M10x1.5 Hex Head BoltQuantity: 6
479-2172: M10-1.5 x 30mm Hex Head Assembly Bolt
479-2172: M10-1.5 x 30mm Hex Head Assembly BoltQuantity: 4
238-1837: Coupling
238-1837: CouplingQuantity: 1
614-1934: 22mm ID Hydraulic Oil Cooler Tube
614-1934: 22mm ID Hydraulic Oil Cooler TubeQuantity: 1
614-1923: 22mm ID Hydraulic Oil Cooler Tube
614-1923: 22mm ID Hydraulic Oil Cooler TubeQuantity: 1
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DescriptionSpecificationsCompatible Models
Description for part number 609-9666

Roof mounted auxiliary hydraulic cooler provides additional hydraulic cooling capacity. For use in heavy duty applications (i.e. mulching, brush cutting, etc.) where the machine is utilized continuously in high flow mode with high demand on the Hystat system at ambient temperatures greater than 38° C (100° F). Requires FOPS Level 2 (sold separately). Not compatible with Water Tank, Single Point Lift, or Roof Mounted Attachments Bracket.

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Specifications for part number 609-9666

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

Compatible Models for part number 609-9666

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