Looking for the best arm cylinder kits? We offer top-quality kits designed for precise compatibility, rugged durability, and easy installation, featuring trusted components like CO2 cartridges and seal kits to keep your gear reliable and ready for action.
Arm cylinder kits are vital for safety and performance in water sports, boating, or heavy machinery. They ensure quick inflation, durable seals, and reliable power boosts when you need them most.
The best kits combine precise compatibility, rugged durability, and easy re-arming or installation. Whether for life jackets, excavators, or bikes, trusted components like CO2 cartridges and seal kits keep your gear ready for action.
Every kit is tested for strength and safety. Clear instructions make setup simple. Your gear stays reliable, efficient, and built for tough conditions.
List of Top 10 Arm Cylinder Kits
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PFD Re-Arm Kit 38 Grams CO2 Cylinder Cartridge Compatible with Atmos 40 and Arcus 40 Automatic Life Jackets |
Perfect for water sports enthusiasts needing quick re-arm gear. Designed for Bluestorm Atmos 40/Arcus 40 life jackets, this kit includes a 38g CO2 cylinder, water-soluble bobbin, and storage box. Ensures reliable inflation and safety during boating, fishing, or surfing. |
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BLUESTORM CO2 Re-Arm Kit 24 Gram Cylinder Cartridge Compatible with Cirrus 26 Automatic Life Jacket Personal Flotation Device (PFD) |
This product is perfect for boaters, water sports enthusiasts, or anyone using a Bluestorm Cirrus 26 or Cirro 26 life jacket. It includes a 24g CO2 cylinder and parts to quickly re-arm your PFD after deployment. |
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RE-ARM KIT L – 24g Auto/Manual (threaded cylinder) |
This re-arm kit is perfect for anyone who owns a life jacket with a 24-gram CO2 cylinder. It’s easy to use and keeps your safety gear ready for automatic or manual activation. |
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FSHero Riding 150cc 57MM Big Bore Cylinder Rocker Arm Camshaft Ring Kit Fit for Yamaha TTR125 2000-2004 Fit for TTR125E 2003-2009 Fit for TTR125L 2011 |
This FSHero Riding 150cc Big Bore Kit is perfect for Yamaha TTR125 owners looking to upgrade their bike’s performance. It fits specific models from 2000 to 2017, so check your bike’s details before buying. |
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7162062 New Excavator Arm Cylinder Seal Kit Fits Bobcat 331 331E 334 430 |
This product is perfect for Bobcat owners and equipment repair teams needing durable replacement seals. It fits 331, 331E, 334, and 430 models with 1 1/2” rod and 2 3/4” bore specs. Built to meet OEM standards, it ensures long-lasting performance and reliable durability for heavy-duty tasks. |
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BLUESTORM CO2 Re-Arm Kit 38 Gram Cylinder Cartridge Compatible with Atmos 40 and Arcus 40 Automatic Life Jackets Personal Flotation Devices (PFDs) |
This re-arm kit is perfect for anyone with a Bluestorm Atmos 40 or Arcus 40 life jacket. It’s easy to use and keeps your safety gear ready. |
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707-98-25110 Komatsu Excavator Arm Cylinder Seal Kit PC40-6 PC40-7 PC45-1 + |
This seal kit is perfect for mechanics and equipment operators who need a reliable, cost-effective replacement for Komatsu excavator arm cylinders. It fits PC40-6, PC40-7, PC45-1, and similar models, offering OEM-matching performance without the high price. |
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BLUESTORM CO2 Re-Arm Kit 33 Gram Cylinder Cartridge Compatible with Stratus 35 USCG Automatic Life Jacket Personal Flotation Device (PFD) |
This product is perfect for boaters, anglers, or water sport users needing to re-arm their Bluestorm Stratus 35 automatic life jacket. It includes a USCG Approved 33-gram CO2 cylinder, a Halkey-Roberts V80040 Yellow Bobbin, and simple steps to quickly restore your PFD’s safety features. |
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Excavator Seal Kit – Arm Cylinder 7161331 Fits Bobcat Models: E27 E32 E32i E34 |
This Excavator Seal Kit is perfect for Bobcat owners who need a reliable replacement for their arm cylinder. It’s ideal for models like E27, E32, and more, ensuring your equipment runs smoothly. |
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2 Pcs Hydraulic Uni-servo Cylinders – Left & Right Cylinders with Link Arms Compatible with 10″ x 2-1/4″ & 12″ x 2″ Hydrualic Marine Trailer Brake |
This product is perfect for marine trailer owners needing to replace 10” x 2-1/4” or 12” x 2” hydraulic brakes. Durable aluminum construction ensures long-lasting performance, and the pair of cylinders with link arms makes installation straightforward for professionals. |
Detailed Reviews
Top-rated Arm Cylinder Kits deliver reliable performance and easy upgrades for life jackets, excavators, and trailers. Each kit is precision-engineered to meet tough demands, from waterproof seals to corrosion-resistant durability. Whether you need quick inflation, heavy-duty strength, or smooth operation, these picks ensure safety and efficiency in every task.
1. PFD Re-Arm Kit 38 Grams CO2 Cylinder Cartridge Compatible with Atmos 40 and Arcus 40 Automatic Life Jackets

This PFD Re-Arm Kit includes a 38g CO2 cylinder, a yellow water-soluble bobbin, and a blue storage box. The CO2 cylinder quickly inflates life jackets with 170N of buoyancy. It works with Bluestorm Atmos 40 and Arcus 40 automatic life jackets.
The yellow bobbin triggers inflation when submerged in water. The blue storage box keeps parts safe and organized. This kit is ideal for boating, fishing, surfing, and other water sports.
The CO2 cartridge is disposable. Store it in a cool, dry place away from heat and sunlight.
| Pros | Cons |
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Perfect For:
Perfect for water sports enthusiasts needing quick re-arm gear. Designed for Bluestorm Atmos 40/Arcus 40 life jackets, this kit includes a 38g CO2 cylinder, water-soluble bobbin, and storage box. Ensures reliable inflation and safety during boating, fishing, or surfing.
Ready to Purchase?
2. BLUESTORM CO2 Re-Arm Kit 24 Gram Cylinder Cartridge Compatible with Cirrus 26 Automatic Life Jacket Personal Flotation Device (PFD)

The BLUESTORM CO2 Re-Arm Kit keeps your life jacket ready for action. It’s compatible with Cirrus 26 and Cirro 26 models. This kit ensures your personal flotation device (PFD) works when needed.
It includes a 24-gram CO2 cylinder with a 1/2” thread. The Halkey-Roberts V80040 Yellow Bobbin is also part of the kit. Easy-to-follow instructions make re-arming simple.
This kit is essential for safety. It’s reliable and easy to use. Keep your life jacket in top shape with this re-arm kit.
| Pros | Cons |
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Perfect For:
This product is perfect for boaters, water sports enthusiasts, or anyone using a Bluestorm Cirrus 26 or Cirro 26 life jacket. It includes a 24g CO2 cylinder and parts to quickly re-arm your PFD after deployment.
Ready to Purchase?
3. RE-ARM KIT L – 24g Auto/Manual (threaded cylinder)

The RE-ARM KIT L is a must-have for your safety gear. It’s designed to be simple and effective. This kit ensures your device is always ready.
It includes a 24-gram CO2 cylinder, a bobbin for automatic mode, and a clear instruction manual. These components work together seamlessly. They make rearming quick and easy.
With this kit, you’re prepared for any situation. It’s reliable and easy to use. Stay safe and confident with the RE-ARM KIT L.
| Pros | Cons |
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Perfect For:
This re-arm kit is perfect for anyone who owns a life jacket with a 24-gram CO2 cylinder. It’s easy to use and keeps your safety gear ready for automatic or manual activation.
Ready to Purchase?
4. FSHero Riding 150cc 57MM Big Bore Cylinder Rocker Arm Camshaft Ring Kit Fit for Yamaha TTR125 2000-2004 Fit for TTR125E 2003-2009 Fit for TTR125L 2011

The FSHero Riding 150cc Kit is a big bore upgrade for your Yamaha TTR125. It fits 2000-2004 TTR125, 2003-2009 TTR125E, and 2011 TTR125L models. This kit boosts your bike’s power and performance.
It includes a 57MM cylinder, piston kit, ring kit, gasket kit, valve oil seal, camshaft, and camshaft arm. The 150cc displacement gives your bike a stronger engine. Check your model and pictures before buying to ensure a perfect fit.
Easy upgrade. Boosts power. Fits specific models.
| Pros | Cons |
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Perfect For:
This FSHero Riding 150cc Big Bore Kit is perfect for Yamaha TTR125 owners looking to upgrade their bike’s performance. It fits specific models from 2000 to 2017, so check your bike’s details before buying.
Ready to Purchase?
5. 7162062 New Excavator Arm Cylinder Seal Kit Fits Bobcat 331 331E 334 430

This seal kit fits Bobcat 331, 331E, 334, and 430 excavators. It matches Rod: 1 1/2″, Bore: 2 3/4″ specs for precise performance.
OEM numbers are for reference—verify fit before buying. Some images may differ from the actual product. This aftermarket part meets or exceeds OEM specs for durability.
| Pros | Cons |
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Perfect For:
This product is perfect for Bobcat owners and equipment repair teams needing durable replacement seals. It fits 331, 331E, 334, and 430 models with 1 1/2” rod and 2 3/4” bore specs. Built to meet OEM standards, it ensures long-lasting performance and reliable durability for heavy-duty tasks.
Ready to Purchase?
6. BLUESTORM CO2 Re-Arm Kit 38 Gram Cylinder Cartridge Compatible with Atmos 40 and Arcus 40 Automatic Life Jackets Personal Flotation Devices (PFDs)

The BLUESTORM CO2 Re-Arm Kit is made for Atmos 40 and Arcus 40 automatic life jackets. It includes a 38 gram CO2 cylinder to keep your PFD ready.
The CO2 cylinder has a 1/2” thread for easy installation. It works with Halkey-Roberts V80040 Yellow Bobbin and part number V95000-86202Z. Clear re-arming instructions are included.
This kit ensures your life jacket stays safe and reliable. Re-arm your PFD quickly with the simple steps provided. Stay prepared for water safety with this essential gear.
| Pros | Cons |
|---|---|
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Perfect For:
This re-arm kit is perfect for anyone with a Bluestorm Atmos 40 or Arcus 40 life jacket. It’s easy to use and keeps your safety gear ready.
Ready to Purchase?
7. 707-98-25110 Komatsu Excavator Arm Cylinder Seal Kit PC40-6 PC40-7 PC45-1 +

This seal kit is a new replacement for Komatsu excavators. It fits PC40-6, PC40-7, and PC45-1 models. Use it for arm and bucket cylinders.
This aftermarket part meets or exceeds OEM standards. Always verify fit before ordering. Stock images may differ from the actual product.
| Pros | Cons |
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Perfect For:
This seal kit is perfect for mechanics and equipment operators who need a reliable, cost-effective replacement for Komatsu excavator arm cylinders. It fits PC40-6, PC40-7, PC45-1, and similar models, offering OEM-matching performance without the high price.
Ready to Purchase?
8. BLUESTORM CO2 Re-Arm Kit 33 Gram Cylinder Cartridge Compatible with Stratus 35 USCG Automatic Life Jacket Personal Flotation Device (PFD)

The BLUESTORM CO2 Re-Arm Kit is a USCG-approved refill for the Stratus 35 automatic life jacket. It includes a 33-gram CO2 cylinder with a 1/2” thread for secure installation.
This kit features the Halkey-Roberts V80040 Yellow Bobbin and matches part number V95000-85202Z. Clear, step-by-step re-arming instructions ensure quick and correct setup.
Simple re-arming process keeps your PFD ready. Trusted components deliver reliable inflation. Safe and easy-to-use for peace of mind on the water.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for boaters, anglers, or water sport users needing to re-arm their Bluestorm Stratus 35 automatic life jacket. It includes a USCG Approved 33-gram CO2 cylinder, a Halkey-Roberts V80040 Yellow Bobbin, and simple steps to quickly restore your PFD’s safety features.
Ready to Purchase?
9. Excavator Seal Kit – Arm Cylinder 7161331 Fits Bobcat Models: E27 E32 E32i E34

This Excavator Seal Kit fits Bobcat E27, E32, E32i, E34, and other listed models. It includes key parts: seal BP (6692325), rod seal (6667327), and wiper rod (6686999). The kit ensures smooth arm cylinder performance with durable, reliable components.
Parts may vary by serial number. Always check the Online Parts Catalog to confirm compatibility before buying. This avoids errors and ensures the right fit for your machine.
The kit replaces part number 7161331. It also includes O rings and a piston nut (6810540) for full functionality. Designed for easy installation, it helps maintain your excavator’s arm cylinder strength and efficiency.
| Pros | Cons |
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Perfect For:
This Excavator Seal Kit is perfect for Bobcat owners who need a reliable replacement for their arm cylinder. It’s ideal for models like E27, E32, and more, ensuring your equipment runs smoothly.
Ready to Purchase?
10. 2 Pcs Hydraulic Uni-servo Cylinders – Left & Right Cylinders with Link Arms Compatible with 10″ x 2-1/4″ & 12″ x 2″ Hydrualic Marine Trailer Brake

Pair of Hydraulic Cylinders for 10″ x 2-1/4″ & 12″ x 2″ Marine Trailer Brakes. Left & Right Cylinders with Link Arms included in one set. Upgrades or replaces old brake parts with ease.
Aluminum Construction ensures lightweight and durability. Corrosion-Resistant design suits marine environments.
Professional Installation Recommended for safe setup. Contact support for help with fitting or questions. Reliable Braking Performance ensures trailer safety.
| Pros | Cons |
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Perfect For:
This product is perfect for marine trailer owners needing to replace 10” x 2-1/4” or 12” x 2” hydraulic brakes. Durable aluminum construction ensures long-lasting performance, and the pair of cylinders with link arms makes installation straightforward for professionals.
Ready to Purchase?
Buying Guide
Arm cylinder kits are vital for safety and performance in water sports, heavy machinery, and more. Choosing the right one ensures reliable power and durability when you need it most.
Factors to Consider When Buying Arm Cylinder Kits:
– Compatibility: Check if the kit fits your specific model or device. Precise compatibility ensures it works seamlessly.
– Durability: Look for rugged materials that withstand tough conditions. Trusted components like CO2 cartridges and seals matter.
– Ease of Use: Kits with clear instructions and simple re-arming save time and effort.
– Safety Testing: Ensure the kit is tested for strength and safety. This guarantees reliable performance in critical moments.
– Inflation Power: For life jackets, choose kits with quick inflation and adequate buoyancy (like 170N).
– Storage and Maintenance: Store CO2 cartridges in cool, dry places away from heat and sunlight. Follow manufacturer guidelines for care.
– Aftermarket Quality: If buying aftermarket, ensure it meets or exceeds OEM standards. Verify fit before purchasing.
Engaging Experience:
Whether you’re upgrading a bike, re-arming a life jacket, or maintaining an excavator, the right arm cylinder kit keeps your gear ready for action. With trusted components and easy installation, you’ll stay safe, efficient, and confident in any situation.