VALVE,Spring Brake Trailer Supply Port (1)1/4-18 NPT Delivery Ports (4)3/8-18 NPT Reservoir Ports (2)1/4-18 NPT Reservoir Port (1)3/4-14 NPT Exhaust Port (1)3/8-18 NPT
- Part number: LBV-5671
- OE MFG: MACK
- OEM Reference: 745-287376
- Cross Reference: MACK : 745-287376, 745-287376N, 745-287376R, 745-K033214; OTHER : 287376, 287376N, 287376R, K033214
- Product Class: Air Valves & Kits
The PAI LBV-5671 is a spring brake valve identified with Mack OEM reference 745-287376. As heavy duty diesel truck parts, spring brake valves manage air delivery within a vehicle’s parking and emergency brake system, directing pressure between supply, reservoir, delivery, and exhaust circuits. The supplied configuration lists one 1/4-18 NPT trailer supply port, four 3/8-18 NPT delivery ports, two 1/4-18 NPT reservoir ports, one 3/4-14 NPT exhaust port, and one additional 3/8-18 NPT reservoir port, providing useful connection details for part comparison. Mack cross-references include 745-287376N and 745-287376R.
