Primus Child Safe Fuel Bottle Cap with O-Ring

The Primus Child Safe Fuel Bottle Cap is a replacement cap designed for Primus liquid fuel bottles P737926, P737927, P737928, and P737929. Each cap ships with an o-ring included, covering the two components most likely to wear or go missing with regular use.

A Direct Replacement When You Need It

A damaged or lost fuel bottle cap can sideline a liquid-fuel stove setup entirely. A confirmed replacement that matches the child-safe mechanism and thread pattern of the original means a worn or cracked cap does not end a trip. The included o-ring replaces the seal at the same time, restoring a proper fuel-tight closure rather than just swapping the cap body.

Child-Safe Design Retained

The cap maintains the child-safe closure mechanism of the original Primus fuel bottle caps. For camps and vehicles where children are present, that feature matters as much on a replacement part as it did on the bottle when new.

Features

• Compatible bottles: fits Primus fuel bottles P737926, P737927, P737928, and P737929
• O-ring included: ships with one o-ring for a complete cap-and-seal replacement
• Child-safe closure: retains the child-resistant mechanism of the original cap

Specifications

Who This Is For and Isn't

This cap suits anyone who needs to replace a lost, cracked, or worn cap on a Primus liquid fuel bottle (models P737926, P737927, P737928, or P737929). It is also a practical spare to carry on extended trips where a damaged cap would otherwise render the bottle unusable.

This cap does not fit Primus fuel bottles outside the four listed model numbers. It is a replacement part only and does not include a fuel bottle.

Common Questions

Which Primus fuel bottles does this cap fit?

The Primus Child Safe Fuel Bottle Cap fits Primus fuel bottle models P737926, P737927, P737928, and P737929. It is not confirmed to fit other Primus bottle models, so verify your bottle's model number before ordering.

Does this replacement cap include an o-ring?

Yes. Each Primus Child Safe Fuel Bottle Cap ships with one o-ring included, allowing a complete replacement of both the cap body and the fuel-tight seal in a single purchase.

Does this cap maintain the child-safe closure of the original?

Yes. The Primus Child Safe Fuel Bottle Cap retains the child-resistant closure mechanism, so replacing a worn original cap does not remove that safety feature from the bottle.

Is a fuel bottle included with this cap?

No. This listing is for the replacement cap and o-ring only. The compatible Primus fuel bottles (P737926, P737927, P737928, and P737929) are sold separately.