Добавь это в checkout.php
И потом в checkout.tpl foreach ($products as $product) { $product['name'] } все параметры в массиве
$data['products'] = array();
foreach ($this->cart->getProducts() as $product) {
$data['products'][] = array(
'cart_id' => $product['cart_id'],
'product_id' => $product['product_id'],
'name' => $product['name'],
'model' => $product['model'],
'quantity' => $product['quantity'],
'subtract' => $product['subtract'],
'price' => $this->currency->format($this->tax->calculate($product['price'], $product['tax_class_id'], $this->config->get('config_tax')), $this->session->data['currency']),
'total' => $this->currency->format($this->tax->calculate($product['price'], $product['tax_class_id'], $this->config->get('config_tax')) * $product['quantity'], $this->session->data['currency']),
'href' => $this->url->link('product/product', 'product_id=' . $product['product_id'])
);
}