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WABCO Premium OE Air Brake Pressure Reduction Relay Valve 9732981450 *** NEW, NO BOX***


Sale price $171.50 Regular price $249.99
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Description

The WABCO Air Brake Pressure Reduction Relay Valve 9732981450 is a premium, factory-certified original equipment pneumatic control component designed for heavy-duty commercial air brake systems. This heavy-duty relay valve acts as an accelerated signal booster, speeding up brake application by instantly directing high-volume compressed air from local reservoirs directly to the brake chambers. By initiating response cycles closer to the wheels, it effectively eliminates structural pneumatic delivery lags from distant dash foot-valves. Engineered to OE specifications with an integrated 1:1 regulating ratio, it cycles automatically and dynamically handles severe stop-and-go stresses without requiring adjustments. Swapping a worn or sluggish relay valve ensures crisp, synchronized braking response across all axles, reducing stopping distances and maximizing vehicle safety. [1, 2, 3]
⭐ Key Features & Benefits
  • ⚡ Genuine WABCO OEM Engineering — Fabricated to original equipment standards for superior diagnostic compatibility, precise pressure scaling, and maximum road endurance. [1, 2]
  • ⚡ Ultra-Fast Brake Timing — Delivers rapid, zero-lag pressure distribution to brake chambers to establish optimized truck and trailer stopping power. [1, 2]
  • ⚡ Specialized Pressure Reduction Design — Built with a 1:1 regulating ratio, 3.92 psi opening threshold, and 4.35 psi predominance profile for balanced system actuation. [1]
  • ⚡ Precision NPTF Dry Seal Threading — Features factory-machined 1/2", 3/8", and 1/4" NPTF threaded ports to secure a completely leak-free pneumatic seal. [1]
  • ⚡ Severe Weather Durability — Industrial-grade metal housing with high-spec internal components rated to perform smoothly across a radical -40°C to +80°C thermal envelope. [1, 2]
🔧 Uses / Applications
  • ⚙️ Servicing primary pneumatic air brake control plumbing on heavy-duty commercial semi-trucks, tractors, and multi-axle trailers.
  • ⚙️ Direct field-replacement for leaking, contaminated, or sluggish relay valves causing slow service-brake release or application lag.
  • ⚙️ Restoring legal operating safety bounds and eliminating dangerous diagnostic pneumatic pressure imbalances during fleet overhauls.
  • ⚙️ Premium replacement component option for professional heavy-duty service bays, transit maintenance centers, and owner-operators. [1, 2, 3]
📊 Technical Specifications
Specification [1, 2, 3, 4] Detail
Part Type
Air Brake Pressure Reduction Relay Valve
Position
Frame Mounted / Near Brake Axle Reservoir
Part Number
9732981450 / 973 298 145 0
Material
Precision Die-Cast Metal Alloy Assembly
Fitment
Universal Heavy-Duty Trucks, Semis, and Commercial Trailers
Condition
Brand New
Installation
Direct-Fit Replacement / 2-Point Mounting Bracket (24.5x10mm)
🔄 Cross‑Reference / Interchange Table
Manufacturer [1, 2, 3, 4, 5, 6] Equivalent Part Number
WABCO / ZF (OEM)
9732981450, 973-298-145-0
Meritor
9732981450, S9732981450
TruckPro
WN9732981450
Aurora Parts
WBC9732981450
GTIN / UPC
04057876209484 / 193133450283
Additional Notes
Port Threads: Port 1 = 1/2"-14 NPTF; Port 2 = 3/8"-18 NPTF; Port 4 = 1/4"-18 NPTF. Maximum operating pressure is 11.0 bar (159.54 psi).

*** NEW, NO BOX***

Disclosure Policy

This product was acquired by Freeman Liquidators from a sale of merchandise subject to a commercial insurance loss. Freeman Liquidators is a secondary seller of products, is not affiliated with or sponsored by the manufacturer of the products and is not a manufacturer authorized seller of the products. Sale of this product by Freeman Liquidators is not subject to the policies of the manufacturer. Any warranty offered by the manufacturer is not available to you as the purchaser.

All products are NEVER USED but external packaging will have damage. Some items may be placed into other packaging to ensure safe shipping. All items are opened for inspection prior to shipment to ensure the best quality of products. Freeman Liquidators guarantees your satisfaction. If you are not completely satisfied with a purchased product, within 30 days from the date of purchase, return the product in its packaging and Freeman Liquidators will fully refund your money.

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WABCO Premium OE Air Brake Pressure Reduction Relay Valve 9732981450 *** NEW, NO BOX***

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