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12_326b8bcc-0587-459a-accf-16aed33843ae - Northline Parts

Caterpillar Ignition Switch 163-2659 with 2 Keys for 416B, 446B & TH Telehandlers

SKU: NLT2T01867
$34.59 In Stock
$34.59
Sale price  $34.59 Regular price 
Ships for free in 2–4 business days.
This keyed start/ignition switch cross-references Caterpillar 163-2659 and is supplied with two keys for compatible backhoe and telehandler applications.
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
Brand / Family Compatible Applications
Caterpillar backhoe loaders 416B, 446B
Caterpillar telehandlers TH62, TH63, TH82, TH83, TH103

Product Overview

The switch provides the operator's keyed electrical control for OFF/RUN/START circuits. Worn internal contacts can cause intermittent accessory power, no-crank complaints or a key that must be held or moved to maintain connection.

Caterpillar used multiple switch/connector arrangements across machine generations.

Key Features & Performance

  • Machine-control input: Provides the electrical state change used by the machine's start, safety or emergency-control circuit.
  • Exact configuration matters: Contact arrangement, connector/terminals, actuator style and mounting must match the original switch.
  • Functional testing required: After replacement, verify that the associated control or safety circuit changes state correctly.
  • Product-specific note: Caterpillar used multiple switch/connector arrangements across machine generations.

Technical Specifications

  • Component: Keyed ignition / start switch
  • Keys: 2

Replaces / Reference Part Numbers

163-2659, 1632659, 110-7883, 3E-7341

Common Replacement Reasons

  • Intermittent or open electrical contacts
  • Damaged actuator/key mechanism
  • Safety/start circuit diagnosis identifies the switch as the failed input

Frequently Asked Questions

How do I confirm this is the correct part?
Match 163-2659 or a listed cross-reference plus the connector/terminal layout on your machine.

Is this an OEM part?
Unless the listing is explicitly identified as genuine/OEM in the product data, treat it as a replacement component. Use the verified reference numbers, equipment application and physical configuration above to match your original part.

What should I check before installation?
Inspect the rear terminal/connector pattern before removing the original switch.

Fitment note: Equipment manufacturers may use different components within the same model family based on engine, serial number or production date. Confirm the original part number and machine/engine details before ordering.

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