Repair Kit - Kränzle Pump Seals

The Kränzle RP pump seal repair kit is a service set intended for refurbishing the pump sealing section in Therm-RP units (hot-water pressure washers). Replacing seals is a typical service step when leaks, pressure fluctuations, or reduced high-pressure system performance appear.

MPN / reference: 486040
Weight: 0.060 kg
Dimensions / size (packaging): 10×1×10

APPLICATION

Used in Kränzle RP pump service work, especially for:

• pump refurbishment in Therm-RP hot-water pressure washers,
• replacing seals in the working section (head / plunger section) after prolonged operation,
• eliminating leaks in the pump area affecting pressure stability,
• periodic inspections of hot-water units where sealing parts operate under demanding cycles.

SYMPTOMS - WHEN IT’S WORTH REPLACING

Typical signs of pump seal wear:

• water leaks around the pump or under the housing,
• drop in working pressure despite functional working accessories,
• jet pulsation and pressure fluctuations during operation,
• difficulty maintaining stable parameters under load,
• moisture on pump components after downtime (leaks show up “later”).

HOW TO CHOOSE THE RIGHT PART

Select the kit based on manufacturer data, as different pump variants may use different seal sets:

• by manufacturer MPN / reference: 486040,
• by pump/system designation: Kränzle RP for Therm-RP,
• by comparison with the removed set: verify profiles and quantities before installation.

Accurate fit is critical for tightness and pressure stability, especially in hot-water systems.

COMPATIBILITY

Kit described as intended for Kränzle RP pumps used in Therm-RP units (hot-water pressure washers).
For safe selection, confirm compatibility by MPN 486040 and the pump documentation/parts list (table/specification). Selecting only by series name without reference verification is not recommended.

[faq]

How do I confirm kit 486040 fits my Therm-RP washer?|The safest method is checking MPN 486040 in the parts list for the Kränzle RP pump and comparing the kit with the removed parts. This helps avoid mistakes between pump variants.
Does hot-water operation affect how often seals need replacing?|Often yes, because the system works under more demanding conditions. Symptoms are similar (leaks, pulsation, pressure drop), but diagnosis should consider the entire system.
Can I use an aftermarket kit instead of Kränzle?|Only if dimensions and profiles match exactly and it’s rated for high-pressure systems. In hot-water washer service, sticking to selection by MPN and pump documentation is especially important.

[/faq]