11823-FU400 Hose Ass’y for Komatsu K15 K21 Series Forklifts

Overview

The 11823-FU400 HOSE ASS’Y is a Komatsu hose assembly supplied for the K15 and K21 series industrial engines that power many of the brand’s engine-driven forklifts. Hoses in these engines face constant heat, vibration and pressure cycling, and over time they can harden, crack or weep at the fittings. Replacing a worn hose before it fails is one of the simplest ways to prevent fluid loss and unplanned downtime. This assembly is produced to match the original component’s length, end fittings and routing, so it installs as a direct replacement during routine service.

Compatibility

The 11823-FU400 hose assembly fits two Komatsu engine families:

• K15 series – K15-1AD and K15-1AG variants in FM and WM configurations (for example, the 11823-FU400 for K15-1AD-FM and its WM/AG counterparts)
• K21 series – K21-1X variants, covering 1X3-TO, 1XD and 1XG configurations in FM, WM and TO setups

Before ordering, check the engine nameplate on your forklift and match the full model code against the list above. No cross-reference OEM numbers are published for this part; if the hose you are removing carries a different number, send it to our team and we will confirm interchangeability for you.

Quality and Reliability

Komatsu builds the K15 and K21 engine families for continuous material-handling duty, and the hoses specified for them are engineered to the same standard. The 11823-FU400 HOSE ASS’Y is manufactured to the fit, connection sizes and routing of the original Komatsu design, so it lines up with existing brackets and pipework without modification. Every order is checked against the part number you provide before dispatch, so the assembly that arrives matches both the listing and your engine application.

Installation and Maintenance Tips

• Relieve system pressure and allow the engine to cool before loosening any fittings.
• Photograph the original hose route before removal; the new assembly should follow the same path, clear of hot surfaces, moving parts and sharp edges.
• Fit new clamps where the service manual requires them, and tighten to the torque values in your Komatsu service literature.
• After installation, run the engine to operating temperature and inspect every joint for leaks.
• At each service interval, check for swelling, abrasion, soft spots or staining near the fittings — early signs that a hose is due for replacement.

Why Order from Us

forkliftpartssearch.com specialises in forklift spare parts, and Komatsu engine components such as the 11823-FU400 HOSE ASS’Y are a core part of our catalogue.

• Part-number accuracy – listings are organised around exact Komatsu part numbers, so searching 11823-FU400 takes you straight to the correct assembly.
• Fitment support – our team can verify the 11823-FU400 against your K15 or K21 engine model before you commit to the order.
• Honest listings – where OEM cross-reference numbers are not published, we say so and help you confirm fitment by model code instead.
• One source for related parts – clamps, filters and other K15/K21 engine consumables can be ordered alongside your hose.

Order the 11823-FU400 HOSE ASS’Y today and keep your Komatsu-powered forklift working without interruption.