Description
RG-2 RELAY VALVE – KN28510-G (VERTICAL PORT, FAST RESPONSE)
PART NUMBER(S):
Fleet Products: KN28510-G | OE: KN28510, N30108AK | Automann: 170.KN28510
DESCRIPTION:
Model: RG-2 Relay Valve
Vehicles: Compatible with heavy-duty tractor and trailer air brake systems
• Valve Type: RG-2 fast relay valve (air-operated)
• Function: Applies and releases service brakes quickly for enhanced braking response
• Supply Port: 1/2" NPT
• Delivery Ports: 2 × 3/8" NPT
• Control Port: 1/4" NPT
• Cracking Pressure: 5.6 ± 1.0 PSI
• Control Port Position: 90° relative to delivery ports
• Plugs Included: 1 × 3/8" NPT
• Mounting: 2 holes, 0.34" diameter, 1.50" centers
• Cover: Rotatable without impacting warranty or performance
• Material: Heavy-duty metal construction
• Weight: ~1.5 lbs
• Performance/Technology: Compact size, vertical port orientation for flexible installation
• System Integrity: Brand new OEM-grade valve, not remanufactured
Applications:
Designed for use in high-demand air brake systems across heavy-duty tractors and trailers. Ensures fast actuation of service brakes by relaying control air from foot valve to brake chambers. Suitable for both tractor-mounted and trailer-mounted configurations where rapid brake response and compact installation are critical.
CROSS-REFERENCE(S):
KN28510, ZZKN28510X, HKN28510X, 745KN28510X, 30108AK, 28510, 28510X, 28510XB, KN28510RX, 5396-KN28510, 5396KN28510, 5396KN28510X, OTR28510, MKN28510, MSKN28510X, MSMDKN28510X, MTAKN28510, N30108BL, PL28510, PRA78889, R955KN28510, R955KN28510N, R955KN28510X, RKN28510, S-6006A, S-6086, SAP-KN28510, SEA110197, SEA110410, SL-9125, TV28510, TV28510TEC, TWDHKN28510, VEL034057, VN30108AC, VN30108BL, W28510P, WA103009, WE78889, XZKN28510X, SAA78889, POW28510P, PP28510P, TDARKN28510, PAEM36120, 103009, 103009BXW, 279180, 28510P, 28510NP, 286844, 294866, 30068, 34026, 3505411, 35057, 36120, 3935413, 401202, 4194307081, 4827003, 4828510P, 4C111, 501521R1, 5018472, 51442, 641088, 65309, 65309X, 701503, 72201-0013, 72201-0035, PL-28510, T294866, T294866C, GTA-28510, GTA28510, E-MDKN28510X, SEA110197, SEA110410, H-30262, 9732980160
A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ Confirm correct port orientation during installation
✔ Install in-line between foot valve and service brake chambers
✔ Port Sizes: Supply 1/2", Delivery 3/8" (x2), Control 1/4"
✔ Includes 1 × 3/8" NPT plug; plug unused delivery port as required
✔ Use standard NPT practices for torque and thread sealant
✔ Cover may be rotated for optimal fit without affecting function
✔ For technical support or diagrams, contact Fleet Products
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Warranty Information
