Washer ring 18x26x2mm

The 18×26×2 mm washer ring is a mounting component used in pressure-washer assemblies. Its function is to position parts, distribute load, and maintain the correct spacing in a joint. In servicing, it is replaced when worn, deformed, or during an overhaul where washer thickness affects the fit of mating components.

MPN / reference: 410142
Dimension: 18×26×2 mm
Reference dimension: Ø 18 mm

APPLICATION

The ring/washer is used in typical assembly and service work:

• setting spacing and positioning parts within the assembly,
• distributing load in axial or bolted joints,
• reducing the risk of point loading on contact surfaces,
• replacing a worn spacer element during pump/accessory refurbishment,
• restoring correct assembly after dismantling the subassembly.

SYMPTOMS - WHEN IT’S WORTH REPLACING

Consider replacing the washer when you notice:

• play in the joint caused by wear of the element,
• deformation, abrasion, or “crushing” of the washer,
• uneven clamping force and working marks on contact surfaces,
• corrosion or mechanical damage after disassembly,
• difficulties in correctly positioning parts after reassembly.

HOW TO CHOOSE THE RIGHT PART

Selection should be done precisely:

• verify the 18×26×2 mm size (inner diameter, outer diameter, and thickness),
• confirm the manufacturer number: MPN 410142,
• compare with the removed part: 2 mm thickness and diameters,
• confirm the application at the specific mounting point.

For spacer components, thickness is critical - a change by fractions of a millimeter can affect fit and clamping force in the assembly.

COMPATIBILITY

Select the washer ring based on MPN 410142 and the 18×26×2 mm dimensions, according to service documentation or by comparison with the removed part. Treat Ø 18 mm as a hint for the inner diameter, but compatibility is determined by the full set of dimensions and the part number.

[faq]

Is the 18×26×2 washer a “single-use” part after disassembly?|Not always, but if the washer shows crushing marks, thickness loss, or corrosion, reinstalling it increases the risk of play and improper clamping force. In service, it’s often replaced during an overhaul.

How can I tell the washer is the issue and not, for example, a bushing or shaft?|If play or uneven clamping occurs despite serviceable guiding elements, and after disassembly the washer shows wear marks or deformation, it’s usually one of the main suspects.

Does Ø 18 mm mean the hole diameter or the outer diameter?|In the 18×26×2 notation, the first value refers to the inner diameter (the hole). To be sure, always compare with the removed part and confirm selection by MPN 410142.

What can happen if I install a washer with a thickness different from 2 mm?|It can change the position of parts in the assembly, introduce play, or cause excessive clamping force. In extreme cases it affects wear of mating components and the stability of the subassembly.

Do I need to prepare anything before installing a new washer?|Yes: clean the contact surfaces, check for burrs, and assess the condition of mating parts. This reduces the risk of uneven clamping and accelerated wear.

[/faq]