Primus ErgoPump Replacement Pump for Multifuel and VariFuel Stoves

The Primus ErgoPump is a complete replacement pump for Primus multifuel and VariFuel stoves, restoring reliable fuel delivery to expedition-grade liquid-fuel systems. It weighs 3.6 oz and measures 2.6" x 1.6" x 7". Compatibility spans two stove families, listed below.

Built to Keep Liquid-Fuel Stoves Running

Liquid-fuel stoves depend on consistent pump pressure to draw fuel from the bottle and vaporize it at the burner. A worn or failed pump means the stove cannot run, regardless of how much fuel remains. Replacing the pump with a direct Primus spare restores the stove to its original operating condition without requiring a full stove replacement.

Broad Compatibility Across Two Stove Families

The ErgoPump covers the MultiFuel family (OmniLite Ti (3219), OmniFuel (3289), MultiFuel, EtaPower MF, and Gravity MF (3281)) as well as the VariFuel family, including the Gravity VF and VariFuel stoves. It also fits hose P732490 and hose P732920 when used with a black connection, making it a single spare that covers a wide range of Primus liquid-fuel hardware already in the field.

Features

• Complete pump assembly: ships as the full pump unit, not individual seals or sub-components
• MultiFuel family compatibility: fits OmniLite Ti (3219), OmniFuel (3289), MultiFuel, EtaPower MF, and Gravity MF (3281)
• VariFuel family compatibility: fits Gravity VF and VariFuel stoves
• Hose compatibility: fits hose P732490 and P732920 with a black connection
• Primus part number: P732231

Specifications

Who This Is For and Isn't

This pump is for owners of the Primus stove models listed above who need to replace a worn, damaged, or non-functioning pump to restore liquid-fuel operation. It suits backpackers, mountaineers, and expedition travelers who rely on these stoves in the field and want a direct OEM spare rather than a workaround.

This pump does not fit Primus canister-only stoves or any stove model not listed in the compatibility data above. It is a replacement part only, with no stove, fuel bottle, or fuel canister included.

Common Questions

Which Primus stoves does this pump fit?

The Primus ErgoPump replacement fits two stove families. The MultiFuel family includes the OmniLite Ti (3219), OmniFuel (3289), MultiFuel, EtaPower MF, and Gravity MF (3281). The VariFuel family includes the Gravity VF and VariFuel. It also fits hose P732490 and P732920 when used with a black connection.

Is this the complete pump or just a seal and repair kit?

The Primus ErgoPump is the complete pump assembly, not a seal kit or sub-component set. Replacing the full pump unit is the straightforward path to restoring fuel delivery on a multifuel or VariFuel stove when the existing pump has worn out or failed.

Does this pump work with both gas canisters and liquid fuel?

The ErgoPump is the liquid-fuel component of compatible Primus multifuel stoves, pressurizing the fuel bottle so the stove can draw and vaporize liquid fuel. The compatible stoves can also run on gas canisters, but the pump itself serves the liquid-fuel side of the system.

What is the Primus part number for this pump?

The Primus part number for the ErgoPump replacement is P732231. Use this number when cross-referencing with a stove's service documentation or when confirming compatibility with a specific model year of a listed stove.