Description
A/C O-ring kit — medium sizes (48-compartment)
The mid-range A/C O-rings in one organized case — 48 part numbers, 288 HNBR O-rings spanning roughly 11–18 mm ID, sorted across a 48-compartment box. These are the captive, metric, pad-mount, dual, and springlock O-rings for GM, Ford, Honda, Audi/VW, Denso, BMW, and more — one of the size-range kits that build the full O-ring master.
The mid-diameter O-rings
Only the mid diameters
Focused range
Covers the mid-diameter A/C O-rings — captive, metric, pad-mount, dual, and springlock — the sizes that come up most on repairs.
HNBR material
Hydrogenated-nitrile O-rings resist refrigerant, PAG/POE oils, heat, and pressure for durable A/C seals.
Wide make coverage
GM, Ford, Honda, Audi/VW, Denso, BMW, Mazda, and more — see the full contents below.
Organized case
288 O-rings sorted across 48 labeled compartments for fast, no-guess selection.
Refillable
Each O-ring is a stocked 10-pack — reorder just the size you use to restock a compartment.
Builds the master
Combine with the smaller and larger kits to assemble the full 936-piece O-ring master.
Full contents — click any O-ring to reorder
All 48 part numbers (6 of each, 288 pieces), listed by size. Each links to its own 10-pack for restocking.
Build the set that fits your bench
These size-range kits combine into the full master. Grab the range you need, or step up to everything.
Prefer a starter or everything at once? See the O-Ring Start-Up Kit (233-3179, 216 pieces) or the O-Ring Master (233-3180, 936 pieces).
Kit details
O-ring size kit FAQ
What’s in this kit?
What material are the O-rings?
Is it refillable?
How does it relate to the master kit?
Shop A/C service kits
Browse O-ring, sealing-washer, and valve-core kits and set your quantities in one place.
| Image | Product Name | SKU | Price | In Stock | Quantity | Add To Cart |
|---|---|---|---|---|---|---|
|
Air Tech Master O-Ring Kit 160 part numbers & 936 pieces | 233-3180 | $197.28 | In stock | ||
|
Master Sealing Washer, Gasket, Valve Core /Cap And 1234YF Cap & Core Kit | 233-3181P | $341.50 | In stock | ||
|
(Most Popular) O-Ring Start Up Kit 48 Compartments | 233-3179 | $50.50 | In stock | ||
|
(Smaller Sizes) O-Ring Master Kit 48 Compartment | 233-3176 | $54.42 | In stock | ||
|
(Medium Sizes) O-Ring Master Kit 48 Compartment | 233-3177 | $54.42 | In stock | ||
|
(Larger Sizes) O-Ring Master Kit 24 Compartment | 233-3178 | $65.18 | In stock | ||
|
1234YF Universal Service Caps and Valve Core Kit | 233-6101 | $99.00 | In stock | ||
|
Sealing Washer Master 48 Compartment Kit | 233-3000 | $197.14 | In stock |
Add the medium-size kit
In stock and ready to ship. Want the full master or a different size range? See the family above, or call and we’ll help.
Add to cart ↑ Contact usVehicle and manufacturer names are used for identification only and do not imply affiliation or endorsement. Confirm the correct O-ring size and material for your application before installing.
