World American WAKN30400, Relay Emergency Valve 3 PSI Fits Heavy-Duty Air Brake Systems, Replaces Haldex KN30400, Meritor R955KN30400, Bendix KN30300XM1DRMAN Charging Style, 1/4 Control & Emergency
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Product details
| Management number | 219204341 | Release Date | 2026/05/03 | List Price | $15.00 | Model Number | 219204341 | ||
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Short Summary: The World American SSA KN30400 Relay Emergency Valve is designed for heavy-duty air brake systems with a 3 PSI cracking pressure and charging style configuration. Engineered to handle critical emergency braking functions, it ensures reliable control and delivery for commercial trucks and trailers. Key FeaturesValve Type: Relay Emergency Valve (Charging Style)Cracking Pressure: 3 PSI (±1 PSI)Control Port: 1/4 Inch NPTDelivery Ports: Four 1/4" ports (0.375" diameter)Emergency Port: 0.25 InchReservoir Port: 0.75 Inch with NippleThread Type: NPT (All Ports)Prop 65: WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.govVehicle CompatibilityUniversal fit for commercial truck and trailer air brake systems using 3 PSI emergency relay valves.Replaces OEM & Aftermarket Part NumbersVelvac: 034067Tectran: 14479, TV30400Automann: 170.KN30400OE Aftermarket: 401227, F224701Mack: 5396-KN30400Bepco: A-71890, A-99036Wagner: A99036Dayton Parts: AVKN30400Euclid: E-MDKN30400N, E-MDKN30400XHaldex: FSKN30400, HAL-KN30400, KN-30300, KN-30400, KN30300X, KN30400CX, KN30400NP, KN30400RX, MIRKN30400, N4301AA, N4301CBFreightliner: HDX KN30300, HDX KN30400, HDXKN30400Bendix: KN30300XM1DRMANBWP: M-30400Haldex (cont.): MDKN30300Genuine Newstar: MIR-KN-30400, S-9322, S9322Torque: TRKN30400Meritor: R955KN30400, R955KN30400N, R955KN30400XNavistar: ZZKN30400Globetech Manufacturing: GTA30400Warranty & Quality Assurance World American products are engineered to meet or exceed OEM standards for fit, function, and durability. Backed by a limited warranty and trusted by professional technicians across the industry, World American delivers lasting performance you can count on.
- Heavy-duty air brake relay emergency valve with 3 PSI cracking pressure and charging style design, suitable for commercial truck and trailer applications.
- Ports: 1/4" control, 4x 1/4" delivery (0.375" dia), 1/4" emergency, 3/4" reservoir with nipple, 0.25" service, 1/4" supply/emergency, NPT threading.
- Delivers reliable performance in emergency air brake activation; reservoir port provides added volume for safe operation.
- Meets OE specifications with consistent delivery and response pressures (4.5 ± 1 PSI crack pressure); built for long service life.
- Replaces OE & aftermarket parts: Haldex, Meritor, Bendix, Freightliner, Tectran, Automann, Euclid, Velvac, Wagner, and more (see full list below).
| Brand | World American |
|---|---|
| Model | Air Brake Emergency Relay Valve |
| Exterior | Machined |
| Item Weight | 1 pounds |
| Manufacturer | World American |
| OEM Part Number | BWP: M-30400 Haldex (cont.): MDKN30300Genuine Newstar: MIR-KN-30400, S-9322, S9322, Bepco: A-71890, A-99036 Wagner: A99036 Dayton Parts: AVKN30400 Euclid: E-MDKN30400N, E-MDKN30400X, Haldex: FSKN30400, HAL-KN30400, KN-30300, KN-30400, KN30300X, KN30400CX, KN30400NP, KN30400RX, MIRKN30400, N4301AA, N4301CB Freightliner: HDX KN30300, HDX KN30400, HDXKN30400 Bendix: KN30300XM1DRMAN, Torque: TRKN30400 Meritor: R955KN30400, R955KN30400N, R955KN30400X Navistar: ZZKN30400 Globetech Manufacturing: GTA30400, Velvac: 034067 Tectran: 14479, TV30400 Automann: 170.KN30400 OE Aftermarket: 401227, F224701 Mack: 5396-KN30400 |
| Item model number | WAKN30400 |
| Product Dimensions | 5.67 x 6.14 x 4.72 inches |
| Manufacturer Part Number | WAKN30400 |
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