288239-G | Push/pull Trailer Supply Valve (PP-7 Style)

288239-G – PUSH/PULL VALVE (7)

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PART NUMBER(S):
Fleet Products: 288239-G
OE: 288239, WA288239, E-BN288239X, AV288239

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DESCRIPTION:

Model: PP-7 Push/Pull Trailer Supply Valve
Vehicles: Compatible with tractors, steering column mounted
• Supply Port: 1/8" NPT
• Delivery Port: 1/4" NPT
• Exhaust Port: 1/8" NPT (open/unthreaded)
• Stem Diameter: 3/8"
• Mounting: Steering column mount
• Actuation Type: Manual push-pull, pressure-sensitive
• Function: Controls trailer air supply and tractor protection system; ensures FMVSS 121 compliance via air-operated interlock
• Performance/Technology:
 • Automatic exhaust at 40 PSI release pressure
 • Provides modulated control for trailer brakes only
 • 288241-G valve may also be used in this application
• Material: Die-cast zinc 
• System Integrity: Designed for modulated trailer-only braking control from tractor-mounted systems
• Unique Features:
 • Air interlock prevents tractor spring brake engagement without trailer brake application
 • Does not include button or mounting nut

Applications:
Primarily used in tractor units as the trailer air supply valve, mounted on the steering column. Provides pressure-sensitive, modulated control of the trailer brakes while protecting system integrity in accordance with FMVSS 121.

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CROSS-REFERENCE(S):

288239, WA288239, E-BN288239X, AV288239, BNS288239N, BEN288239N, OR288239, 288239X, 288239N, GN288239, 170288239, KN20025, R955288239, R955288239N, 20QE3139R, EBN288239N, 1693143C1, EM35950, LPP-3595, K288239, X58305, 65A0421, D5TA2B200AA, D5TZ2951A, S5677, 401136, 101479, 101479X, 101849, 101849X, 286706, 289120, 286889, 287049, 287130, 123921, 20QE1283R, 034051, 1092907, 1512730, 3946096, 288721, 287280BXW, F224715

A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.

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IMPORTANT INSTALLATION NOTES:

✔ Mounts to steering column – ensure correct position for operator reach
✔ Button and mounting nut are not included; reuse existing or source separately
✔ Valve automatically exhausts at 40 PSI to protect trailer service brake system
✔ Valve is intended for modulated trailer brake control only – not for use in tandem with tractor service circuit
✔ Contact Fleet Products for technical support if retrofitting from alternate valve models

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