Sealing Sleeve 14mm

The 14×20×4/2 seal is a sealing element used in pressure-washer pump assemblies where precise gland fit and stable performance under load are required. In service work it is used for high-pressure circuit repairs when the goal is to restore tightness and reduce pressure losses.

MPN / reference: 43054
Size: 14×20×4/2

APPLICATION

Used in typical service operations such as:

• sealing pump components in the hydraulic section,
• fixing leaks around seal seats/glands,
• rebuilding assemblies during pump inspection or overhaul,
• servicing units in the 1150/1151 area (after confirming compatibility by number and size).

SYMPTOMS - WHEN TO REPLACE

Replacement is indicated when you see:

• water leaks around the pump body or the seal seat,
• drop in working pressure after other causes have been ruled out,
• visible wear after disassembly (flattening, cracks, deformed lip edges),
• leakage returning after a short operating time,
• signs of “bypassing” under load during a pressure test.

HOW TO CHOOSE THE RIGHT PART

Selection must be precise because seals differ by dimensions and profile:

• verify the 14×20×4/2 size,
• confirm the manufacturer number: MPN 43054,
• compare with the removed part: working profile, seating method, and the seal’s working direction.

Accurate fit is critical for tightness and repair durability.

COMPATIBILITY

Choose the seal based on MPN 43054 and 14×20×4/2 size, according to the parts list for the specific pump. The 1150/1151 reference indicates a usage area that should be confirmed in the service documentation for the given unit.

[faq]

What does 14×20×4/2 mean on a seal?|It’s a dimensional marking describing the seal’s geometry (diameters and height/profile). In practice, the safest method is to compare to the removed part and confirm by MPN 43054.

Does the seal have an installation direction?|Often yes-the working lip/profile is designed for a specific pressure direction. Best practice is to replicate the orientation from disassembly or follow the assembly’s service procedure.

Does a leak always mean the seal is worn?|No. Leakage can also result from a damaged gland, contamination on sealing surfaces, or wear of mating components. The seal is replaced when inspection confirms wear or deformation.

What should I check in the seat/gland before installing a new seal?|Cleanliness, absence of scratches/pitting, and the condition of edges and guiding surfaces. A damaged seat can quickly destroy a new seal.

Can I use a seal with an “almost” identical size?|Not recommended. Even small dimensional differences or a different profile can cause leakage or rapid wear. Correct selection is based on the MPN and exact size.

[/faq]