Dry break, -3 AN, titanium, for brake fluid, motorcycle, black
Quick Overview
- Dry break, -3 AN JIC male ends
- Miniature body for motorcycle brake lines
- Push and turn; both halves seal when apart
- End of line: replaced by QDS-M0303TE
- Titanium ends, black anodized aluminum body
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$111.65
per EACH (USD)Motorcycle Dry Break, -3 AN JIC Male, Titanium, EPDM Seals
Miniature dry break for motorcycle brake lines: -3 AN JIC male (3/8"-24) both ends, titanium end fittings with black anodized aluminum body, EPDM seals. Both halves seal shut when disconnected.
Current production may vary slightly from the photo.
The Racetronix QDS-M0303T is a matched-set dry break (male and female halves) coupling for -3 AN lines. Push the two halves together and turn to lock: the valves inside open for full flow. Turn and pull apart and both halves close before they separate, so the line stays full and almost nothing spills. The miniature body is made for motorcycle brake lines, where space is tight and the system must stay sealed.
This earlier version is being replaced by QDS-M0303TE, which has Viton Extreme ETP-600S seals for every automotive fluid, including E85, methanol and brake fluid. Once current stock is sold it will not be restocked.
Key features
- -3 AN JIC male (3/8"-24, 37-degree flare) on both ends: fits any -3 AN female hose end or swivel.
- Sold as a matched set: male and female halves.
- Dry break: both halves close before they part, so the system stays full and clean.
- Push and turn to connect; turn and pull to disconnect. No tools.
- EPDM seals: Brake fluid only. Not for oil, mineral grease or gasoline.
- Titanium end fittings for strength and low weight, on a black anodized aluminum body.
- Miniature body for motorcycle brake systems.
Connecting and disconnecting
- Connect: line up the two halves, push them together and turn the locking collar until it stops.
- Disconnect: turn the collar back and pull the halves apart. Both valves close as they separate.
- Keep the mating faces clean. Wipe them before connecting.
- Tighten the AN connections on each end with an AN wrench; do not use the coupling body as a handle.
Expect a few drops on disconnecting: the space between the two closed valves is very small, but it is not zero.
Seals and fluids
| Seal | Use with | Parts |
|---|---|---|
| ETP-600S (Viton Extreme) | All automotive fluids: gasoline, race fuel, E85, methanol and fuel additives, engine and transmission oil, coolant, brake fluid, power steering fluid, grease, air and nitrogen, and solvents such as acetone | QDS-0504AE, QDS-0504TE, QDS-0506AE, QDS-0506TE, QDS-0808AE, QDS-0808TE, QDS-1210AE, QDS-1210TE, QDS-B0303AE, QDS-B0303TE, QDS-B0304AE, QDS-B0304TE, QDS-M0303AE, QDS-M0303TE, QDSP-0806E, QDSP-0808E, QDSP-1210E, QDSP-1212E |
| Fluorocarbon (FKM / Viton) | Gasoline, oil, grease, air and nitrogen. Not for brake fluid | QDS-1210T |
| EPDM | Brake fluid only. Not for oil, mineral grease or gasoline | QDS-M0303T |
Choose the seal for the fluid in the line. If in doubt, the ETP versions (part numbers ending in E) cover the widest range of fluids.
Specifications
| Part number | QDS-M0303T |
| Series | Motorcycle: Miniature dry break for motorcycle brake lines |
| Ends | -3 AN JIC male, 3/8"-24, 37-degree flare, both ends |
| Material | Titanium ends, black anodized aluminum body |
| Seals | EPDM |
| Fluids | Brake fluid only. Not for oil, mineral grease or gasoline |
| Operation | Bayonet: push and turn to connect; both halves seal when disconnected |
| Supplied as | Matched set, male and female halves |
| Status | End of line, while stock lasts; replaced by QDS-M0303TE |
Dry break chart: the full range
Every Racetronix dry break. Click a column heading to sort.
| Part | Series | AN size | Ends | Seals |
|---|---|---|---|---|
| QDS-B0303AE | Brake | -3 | Aluminum | ETP-600S (Viton Extreme) |
| QDS-B0303TE | Brake | -3 | Titanium | ETP-600S (Viton Extreme) |
| QDS-M0303AE | Motorcycle | -3 | Aluminum | ETP-600S (Viton Extreme) |
| QDS-M0303T | Motorcycle | -3 | Titanium | EPDM (end of line) |
| QDS-M0303TE | Motorcycle | -3 | Titanium | ETP-600S (Viton Extreme) |
| QDS-B0304AE | Brake | -4 | Aluminum | ETP-600S (Viton Extreme) |
| QDS-B0304TE | Brake | -4 | Titanium | ETP-600S (Viton Extreme) |
| QDS-0504AE | Standard | -4 | Aluminum | ETP-600S (Viton Extreme) |
| QDS-0504TE | Standard | -4 | Titanium | ETP-600S (Viton Extreme) |
| QDSP-0806E | Shrouded | -6 | Aluminum | ETP-600S (Viton Extreme) |
| QDS-0506AE | Standard | -6 | Aluminum | ETP-600S (Viton Extreme) |
| QDS-0506TE | Standard | -6 | Titanium | ETP-600S (Viton Extreme) |
| QDSP-0808 | Shrouded | -8 | Aluminum | Earlier-generation seals (end of line) |
| QDSP-0808E | Shrouded | -8 | Aluminum | ETP-600S (Viton Extreme) |
| QDS-0808AE | Standard | -8 | Aluminum | ETP-600S (Viton Extreme) |
| QDS-0808TE | Standard | -8 | Titanium | ETP-600S (Viton Extreme) |
| QDSP-1210 | Shrouded | -10 | Aluminum | Earlier-generation seals (end of line) |
| QDSP-1210E | Shrouded | -10 | Aluminum | ETP-600S (Viton Extreme) |
| QDS-1210AE | Standard | -10 | Aluminum | ETP-600S (Viton Extreme) |
| QDS-1210T | Standard | -10 | Titanium | Fluorocarbon (FKM / Viton) (end of line) |
| QDS-1210TE | Standard | -10 | Titanium | ETP-600S (Viton Extreme) |
| QDSP-1212E | Shrouded | -12 | Aluminum | ETP-600S (Viton Extreme) |
Frequently asked questions
Do I need to bleed the system after disconnecting?
Normally not. Both halves close before they separate, so very little fluid escapes and almost no air gets in. On brake systems, check the pedal after reconnecting and bleed if it feels soft.
Can I use this on brake lines?
Yes: this version is for brake fluid only. Its EPDM seals are not for oil, grease or gasoline.
What do the letters in the part number mean?
A = aluminum ends, T = titanium ends, E = ETP seals. B = brake series, M = motorcycle (miniature), P = shrouded. The digits give the body size and the AN size of the ends.
Questions and support
Questions before you order? Email [email protected].
Racetronix provides technical support to verified customers through our support forum, not by phone or email. Please request forum access when you place your order so your account is approved before your parts arrive. The forum is moderated, open 24/7, and holds a knowledge base going back to 1999.
