7835-31-5009 LCD Monitor for KOMATSU Excavator PC300-8 PC350-8 PC400-8 PC450-8

7835-31-5009 LCD Monitor for Komatsu PC300-8 and PC400-8

The 7835-31-5009 LCD monitor is supplied for Komatsu excavator cab electrical system repair. It is commonly searched as 7835-31-5009, 7835315009, LCD monitor, monitor display panel, gauge monitor or cab display monitor for Komatsu PC300-8, PC350-8, PC400-8 and PC450-8 excavators.

This page focuses on 7835-31-5009 as the main part number. 7835315009 is the no-hyphen search format. Final fitment should be confirmed by the old monitor number, front screen layout, rear connector type, plug position, mounting points and machine information before ordering.

Machine Reference for Komatsu Excavators

Common machine references for this monitor include Komatsu PC300-8, PC300LC-8, PC350-8, PC350LC-8, PC400-8, PC400LC-8, PC450-8 and PC450LC-8 excavators. These models match the current product direction and should stay in the page title area, top parameters and body content.

The SEO Title should focus on stronger search models such as PC300-8, PC350-8 and PC400-8, while PC450-8 and LC variants can be covered naturally in the body and top parameters. This keeps the title clean and avoids turning it into a long machine list.

Machine model alone is not enough for final confirmation. Komatsu monitor panels may vary by serial number range, wiring harness, connector layout, software version and cab configuration. The old monitor label and rear connector photos are more reliable than the model name alone.

Part Number and Reference Notes

7835-31-5009 is the main part number of this product page. It should stay visible in the SEO Title, H1, top parameters, first paragraph, product body and image ALT text.

Some market listings may mention nearby Komatsu monitor numbers such as 7835-31-5002, 7835-31-5004, 7835-31-5005 and 7835-31-5007 together with this monitor direction. These numbers should be treated as checking references only unless the old monitor label or supplier data confirms interchange.

Do not add every nearby Komatsu monitor number into the top parameter area. Similar monitor panels can vary by connector position, screen layout, software version and machine configuration, and too many part numbers may dilute the 7835-31-5009 page signal.

How to Confirm the Correct Komatsu LCD Monitor

Excavator monitor panels can look similar from the front, but differences in rear connector, plug quantity, screen layout, warning icons and mounting position may affect installation. Before ordering, compare the removed monitor carefully.

• Confirm whether the old monitor number is 7835-31-5009 or 7835315009.

• Check whether the machine is Komatsu PC300-8, PC300LC-8, PC350-8, PC350LC-8, PC400-8, PC400LC-8, PC450-8 or PC450LC-8.

• Compare the front screen layout, display area and button arrangement.

• Check the rear connector type, plug quantity and pin layout.

• Confirm mounting holes, bracket position and installation space.

• Send photos of the old monitor front side, rear label, connector side and machine nameplate before quotation if you are not sure.

Common LCD Monitor Failure Symptoms

An LCD monitor may need replacement when the screen is black, dim, flickering, cracked, unreadable, shows missing display areas, cannot show warning information, has button failure or does not respond normally after power-on.

Before replacing the monitor, check the power supply, fuse, ground wire, connector, harness condition and controller communication. Some display faults may be caused by wiring or power issues rather than the monitor itself.

If the old monitor was damaged by water, corrosion, unstable voltage or short circuit, the root cause should be corrected before installing the replacement monitor. Otherwise, the new display may fail again.

Installation and Testing Notes

Before installation, turn off the machine power and inspect the old connector. Do not force the plug into the new monitor if the connector shape, pin layout or mounting position is different.

After installation, power on the machine and check whether the monitor starts normally, displays machine information, responds to buttons and shows warning indicators correctly.

If the monitor powers on but does not show correct machine data, check the wiring harness, controller communication and machine version before assuming the monitor is defective.

Buying Notes for Repair Shops and Parts Distributors

For repair shops, this 7835-31-5009 LCD monitor is suitable for Komatsu excavator cab electrical system repair when the old monitor is damaged, unreadable or unable to display machine status correctly.

For parts distributors, it can be supplied as a Komatsu PC300-8, PC350-8, PC400-8 and PC450-8 excavator monitor reference for service demand. Topvelsun supports small repair orders and bulk inquiries. Please send the required quantity, old monitor number, machine model, serial number and photos of the old monitor from multiple angles.

FAQ

What is the main product on this page?

This page is for the 7835-31-5009 LCD monitor used for Komatsu excavator cab display system repair.

Is 7835315009 the same search reference as 7835-31-5009?

7835315009 is the no-hyphen writing format of 7835-31-5009. Buyers may search either format, so both should be kept on the page.

Which Komatsu models are the main references?

Common references include Komatsu PC300-8, PC300LC-8, PC350-8, PC350LC-8, PC400-8, PC400LC-8, PC450-8 and PC450LC-8 excavators.

Can I confirm this monitor by machine model only?

Machine model is useful, but it should not be the only fitment proof. Please also check the old monitor number, front screen layout, rear connector, plug quantity, mounting holes and machine serial number.

What should I send before ordering?

Please send photos of the old monitor front side, rear label, connector side, plug shape, mounting bracket and machine nameplate. These photos help confirm whether 7835-31-5009 is the correct monitor.