S2000 to K-Series AC Line Adapters | OEM AC lines Adapters K-Swap | RBZ Harmony

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RBZ Harmony S2000 to K-Series AC Line Adapters

These CNC machined billet aluminum adapters connect the OEM S2000 AC lines to the K-series compressor so you can keep factory air conditioning after the swap. Just bolt them in, and the lines connect where they need to connect. Machined and finished in-house at our Florida Atelier.

🟤 Keep the Factory AC — Adapts the OEM S2000 AC lines to the K-series compressor so you keep the original AC system without custom hoses.

🟤 Billet 6061-T6 Aluminum — CNC machined from solid billet. 

🟤 Torque Specs On The Part — Each adapter is laser engraved with its torque spec (7.5 ft-lbs) and the RBZ logo. 

🟤 Premium Hardware Included — Button head bolts paired with genuine Nord-Lock wedge locking washers, the same hardware trusted in aerospace and rocket engines to keep joints secure under extreme vibration.

🟤 Presentation Case Included — Each kit ships in a custom 3D printed case with a carbon fiber finish and fitted cutouts that hold every piece in its place. Designed in-house, made to feel like opening a jewelry box.

Why These Exist AC is one of those details that quietly kills a K-swap. The K-series compressor has different inlet and outlet angles than the F-series, and the OEM S2000 lines no longer line up with where they need to connect.

Fitment Designed for the Honda S2000 AP1 and AP2 chassis running a K-series engine swap. Compatible with the OEM S2000 AC lines and standard K-series AC compressor. Running a non standard compressor or modified AC setup? Send us a message before ordering and we will confirm.

Crafted, Not Just Manufactured At RBZ, we approach every part the way a jeweler approaches their work, with patience, precision, and pride in the detail. Each bracket is machined from solid billet, deburred by hand, engraved with its torque spec, and inspected before it leaves the shop. The cut lines, the engraved markings, the way the parts sit in their case, all of it is intentional.

Engineering is the foundation of everything we make, but craftsmanship is what gives our parts their character. Even the smallest pieces in our catalog ship in a fitted case with cutouts that hold each part and bolt in place, because the moment you open the box is part of the product. From the packaging to the smallest fastener, the experience is meant to feel considered, not assembled.

We see our work less like a product line and more like a small gallery, pieces built to perform, designed to last, and finished to be admired.

Specifications

• Chassis compatibility: Honda S2000 AP1 and AP2
• Engine compatibility: Honda K-series swap (K20, K24)
• Application: AC line adapters for OEM S2000 AC line retention with K-series compressor
• Material: 6061-T6 billet aluminum
• Finish: Natural CNC machined
• Construction: CNC machined in-house
• Markings: Laser engraved torque specification (7.5 ft-lbs) and RBZ Harmony brand
• Set includes: AC line adapters, Japanese Industrial Standards (JIS) Grade 10.9 button head bolts, genuine Nord-Lock wedge locking washers
• Packaging: 3D printed presentation case with carbon fiber textured finish and fitted foam cutouts, designed in-house
• Designed and manufactured: RBZ Atelier, Florida, USA
• Brand: RBZ Harmony
  

Frequently Asked Questions

What do these brackets actually do? They hold the OEM Honda S2000 AC lines in the right path around the K-series compressor after the swap. The K compressor sits in a different location than the F-series compressor, so the original lines need to be repositioned to reach it. The brackets handle that without custom hoses.

Do I still need to make custom AC hoses? No. That is the whole point. The factory S2000 AC lines stay in place, the adapters connect them to the K-series compressor, and the system stays sealed end to end.

What chassis and engines does this fit? Honda S2000 AP1 and AP2 chassis with a K-series swap. Works with K20 and K24 variants paired with the standard K-series AC compressor.

What is the finish? Natural CNC machined aluminum. The tool marks from the milling pass are left visible by design. The 6061-T6 alloy holds up well in the engine bay and develops a clean patina over time.

What hardware is included? Each kit ships with Japanese Industrial Standards (JIS) Grade 10.9 button head bolts and genuine Nord-Lock wedge locking washers. Everything needed for installation is included.

Are these designed to work with the RBZ Harmony S2000 K24 engine mount kit? Yes. The adapters and the mount kit were designed as a pair, completing both sides of the swap with the same level of finish.

Where are these made? Designed, machined, engraved, and packaged in-house at our Atelier in Florida.