How to change CrossSell product limit in Magento 2?

Magento 2, Cross-sell product will be display in Shopping Cart page. By Native Magento, Only four Cross-sell product will be display in cart page. If you want to increase or decrease the Cross-sell Product display limit in cart page you need to modify Core Crosssell.php file.

Native file location for CrossSell Product, Magento\Checkout\Block\Cart\Crosssell

You can check the hardcoded product limit by protected $_maxItemCount = 4;

If you want to change the limit you need to override $_maxItemCount variable.

Never modify the core file in Magento.

To override variable you need to create a module for changes.

I have kept Rbj as Packagename and CrossSell as Module name.
Create a Module called Rbj_CrossSell.
Create registration.php and module.xml to declare our module.
File Path, app/code/Rbj/CrossSell/registration.php

<?php
\Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::MODULE,
    'Rbj_CrossSell',
    __DIR__
);

File Path, app/code/Rbj/CrossSell/etc/module.xml We have added the dependency on Native CrossSell module.

<?xml version="1.0"?>

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="Rbj_CrossSell" setup_version="1.0.0">
        <sequence>
            <module name="Magento_Checkout"/>
        </sequence>
     </module>
</config>

Create di.xml file for an override core file,

File: app/code/Rbj/CrossSell/etc/frontend/di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <preference for="Magento\Checkout\Block\Cart\Crosssell" type="Rbj\CrossSell\Block\Cart\Crosssell" />
</config>

Now Create Block file,
Create app/code/Rbj/CrossSell/Block/Cart/Crosssell.php

<?php

namespace Vendor\Module\Block\Checkout\Block\Cart;

use Magento\CatalogInventory\Helper\Stock as StockHelper;

class Crosssell extends \Magento\Checkout\Block\Cart\Crosssell
{
    public function __construct(
        \Magento\Catalog\Block\Product\Context $context,
        \Magento\Checkout\Model\Session $checkoutSession,
        \Magento\Catalog\Model\Product\Visibility $productVisibility,
        \Magento\Catalog\Model\Product\LinkFactory $productLinkFactory,
        \Magento\Quote\Model\Quote\Item\RelatedProducts $itemRelationsList,
        \Magento\CatalogInventory\Helper\Stock $stockHelper,
        array $data = []
    ) {
        parent::__construct(
            $context,
            $checkoutSession,
            $productVisibility,
            $productLinkFactory,
            $itemRelationsList,
            $stockHelper,
            $data
        );

        $this->_maxItemCount = 10; // set your product limit here
    }
}

Run Command to Install Our module from a root of your Magento instance,

php bin/magento setup:upgrade
php bin/magento setup:static-content:deploy -f
php bin/magento setup:di:compile
php bin/magento cache:flush

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