CR Pump Repair Kits & Spare Parts

Genuine Grundfos service parts for CR, CRI and CRN vertical multistage pumps — shaft seals, chamber stacks, wear parts, gaskets and O-ring sets. ForeverPure lists 93 kits and spares.

What usually needs replacing

Part	Symptom
Shaft seal kit	Weeping or dripping at the seal chamber; the most common CR repair
O-ring / gasket set	Leaks at flange or chamber joints, often after a rebuild
Chamber stack	Lost head at the same speed — worn impellers and chambers
Wear parts / neck rings	Efficiency drop and rising power draw on abrasive water
Coupling and shaft parts	Vibration, noise, or after a dry-run event

Ordering the right kit

Seal and O-ring kits are specific to the pump size, the seal code and the elastomer, not just to "CR". The safest route is the eight-digit product number on the pump nameplate — send it to us and we will match the exact kit. A CR 5-7 with an HQQE seal takes a different kit from the same pump with a HUUE seal.

Before you order a seal kit: a seal that fails within months usually points at something else — dry running, cavitation, or misalignment. Replacing the seal alone will buy time rather than fix it.

Common questions

How do I find the right kit for my pump?

Use the eight-digit Grundfos product number from the nameplate. Kits vary by pump size, seal type and elastomer, so the model alone is not enough.

Are these genuine Grundfos parts?

Yes — genuine Grundfos service parts, supplied as an authorized distributor.

What is the most common CR repair?

The shaft seal. It is a wear item and the usual reason a CR starts weeping.

Can I rebuild a CR pump in place?

Seal replacement is designed to be done without removing the motor or disturbing the pipework, using the cartridge seal design. A chamber-stack rebuild is a bigger job.

ForeverPure Corporation is an authorized Grundfos distributor. Send us a duty point or an existing model number and we will confirm the right configuration before you order — contact us.