Complete SAE Boss Assortment (900 Series): Includes 155 total O-rings in 8 of the most commonly used SAE 900-dash sizes for straight thread boss tube fittings used in hydraulic equipment.
Premium FKM 90 Durometer: High-performance fluorocarbon FKM rubber provides excellent resistance to oils, fuels, hydraulic fluids, heat, ozone, and many chemicals—ideal for demanding hydraulic sealing jobs
Fast, No-Guesswork Repairs: Clearly organized case with size chart inside the lid helps techs grab the right boss seal quickly, reducing downtime and parts-matching errors.
Most Popular Tube/Fitting Sizes Included: Covers common boss fitting/tube ODs from 3/16" up to 1" for shop, fleet, farm, industrial, and heavy equipment maintenance.
Rugged Organizer Case: Durable compartmented kit keeps sizes separated and protected—perfect for service trucks and maintenance benches.
Shipping takes place within 3-5 business days. If there is a problem with the shipment of the product, we will notify you via the email address you entered when ordering.
🚚 Is free shipping available?
We do not currently offer free shipping. However, this may be added at some point. We apologize.
🔧 How can I get a tracking number for my order?
If your order has been shipped, we will add the tracking number to your order and notify you via the email address you entered when ordering.
🛡️ How do I process a return or exchange?
For returns or exchanges, please contact us within 14 days of receiving the product, along with a receipt or screenshot of the purchase, and a photo of the product with the packaging or tag intact.
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