What is the date stamped on the side of the bobbins?

I just received a 3 pack of these bobbins and the date stamped on the side of these clearly says Expires 5/2025. The bobbins I removed said MFG 1/2017. I was told that they expire 3 years from date of mfg. Must have caused too much confusion since they now come with an expiration date.

Are these compatible with stearns 0924 (west marine 4000 offshore sailing life jacket?

No, the Halkey Roberts 840AMU rearming kit is not compatible, the thread size and grams of the cartridge charge are different. For a Stearns 0924 check the Secumar 4001SEC Automatic 33 gram CO2 1/2" Bayonet system. For West Marine check West Marine Rearming kit 8846891 Automatic 33 gram, 1/2" bayonet. The specs for your vest's re-arming kit should be on the inside of one of the expandable flaps of your vest.

Will these fit the Blue Storm Cirrus 26?

Jake, You can verify by going to Cirrus 26 Product Manual Download. The rearming kit is V90000-84204Z. Important is the size of the cylinder, must be 24 gram cylinder. Looks like Leland is a match but check manual. Gary

ASIN	B002O76J66
Batteries required	No
Date First Available	8 October 2015
Manufacturer reference	V80040
Product Dimensions	15.24 x 25.4 x 7.62 cm; 9 g

Leland Inflatable PFD Bobbin Replacement Kit - 3 Fresh Bobbins

Description

Specifications

Common Questions