172-6957: ENG AR-3456 | Cat® Parts Store

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172-6957: ENG AR-3456

Brand: Cat

Discontinued

172-6957: ENG AR-3456

Contact your dealer for replacement options.

Brand: Cat

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Add your equipment to see if this part fits or if there are repair options available.

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Will it fit or looking for a repair?Add your equipment to see if this part fits or if there are repair options available.

DISCONTINUED

Warranty Information

Return Policy

Available Cat Reman parts

The following parts are alternative

Cat® Reman

The Cat Reman difference can be found in our commitment to deliver like new quality. From design and engineering to assembly and quality control, our top talent uses state-of-the-art techniques to create our line of over 8,000 Cat Reman products –– all backed by a same-as-new, 12-month Caterpillar Parts Warranty†.

† Limitations may apply. For complete details about the applicable Caterpillar Limited Warranty, contact an authorized Cat dealer.

parts.

The following parts are alternative Cat® Reman

Cat Reman

† Limitations may apply. For complete details about the applicable Caterpillar Limited Warranty, contact an authorized Cat dealer.

parts.

Product Number

10R-8606 : BLOCK G SHRT

20R-3643 : Cat® 3406 Reman Long Block

Diagram

Description

Specifications

Compatible Models

Parts diagram for 172-6957

Description for part number 172-6957

REQUIRED For Replacement labeled Engines, Long Blocks, and short blocks sold within the U.S. and U.S. Territories the engine core (i.e. old engine) that is removed MUST be returned to your selling Caterpillar dealer, so that they can return to Caterpillar OR destroy, as required by law. Proof of return or destruction will then be provided to the EPA and or California ARB if required. See PELJ1301 for additional details.

Specifications for part number 172-6957

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

Compatible Models for part number 172-6957

CHALLENGER

MT865 MT845 MTC855 MT855 MTC865 MTC835 MT835 MTC845

Compare Alternate Parts

Description

172-6957: ENG AR-3456

10R-8606: BLOCK G SHRT

Reman Short Block

20R-3643: Cat® 3406 Reman Long Block

Cat 3406 Reman Long Block (Sculptured) (C16 Complete) (ADEM™ 3 ECM) (No Trans Cooler)

Key

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