065303 | Genuine Bendix® R-12 Air Brake Relay Valve

SKU: 065303 MPN: 065303

Master truck braking control with the Genuine R-12 Air Brake Relay Valve by Bendix. Condition: new. Part number: 065303, designed for linehaul, heavy tractors, vocational, bus, medium duty, and severe service applications.

$189.00
No Core Charge
5 in stock, ready to ship

Pickup available at Warehouse - Howard st 7092 ste F

Usually ready in 24 hours

Need it fast? We offer overnight shipping

Contact us to check if overnight next-day delivery is available for your order - PN: 065303

  • Free shipping over $199 Order today — get it
  • Clock Icon
    Orders before 7 PM EST ship same business day
  • Location icon, warehouse pickup point.
    Pickup available. Usually ready in 24 hours

Product Description

Product Name Air Brake Relay Valve Product Name Air Brake Relay Valve
Model R-12 Model R-12
Condition New Condition New
Brand Bendix® Brand Bendix®
Part Number 065303 Part Number 065303
Cross Reference 065303BXW Cross Reference 065303BXW
Vehicle Compatibility
Severe Service 5900I, 7300, 7400, 7500, 7600, 7700 Severe Service 5900I, 7300, 7400, 7500, 7600, 7700
Medium Duty 4200, 4300, 4400 Medium Duty 4200, 4300, 4400
Premium Conventional 9200, 9400, 9900 Premium Conventional 9200, 9400, 9900
Linehaul ProStar, LoneStar, Linehaul Transport Linehaul ProStar, LoneStar, Linehaul Transport
Heavy Tractors 8500, 8600 Heavy Tractors 8500, 8600
Vocational & Specialty Applications HV (Medium Duty Engines), HV (Heavy Duty Engines), Medium Vocational, Heavy Extreme, Commercial Extreme Transport, Regional Haul Vocational & Specialty Applications HV (Medium Duty Engines), HV (Heavy Duty Engines), Medium Vocational, Heavy Extreme, Commercial Extreme Transport, Regional Haul
Bus Platforms CE 200/300 Series, FE 300, RE 300, IC RE Series, 3200 Bus Chassis, 3300 Bus Chassis, FBC Bus Chassis, Cutaway Commercial Bus Bus Platforms CE 200/300 Series, FE 300, RE 300, IC RE Series, 3200 Bus Chassis, 3300 Bus Chassis, FBC Bus Chassis, Cutaway Commercial Bus
Specifications
Crack pressure 4 PSI Crack pressure 4 PSI
Body Configuration 2 SUP / 4 DEL (2H + 2V) Body Configuration 2 SUP / 4 DEL (2H + 2V)
Control / Secondary Service Port 1/4-18 NPT Control / Secondary Service Port 1/4-18 NPT
Delivery Port 1 1/2-14 NPT Delivery Port 1 1/2-14 NPT
Delivery Port 2 1/2-14 NPT Delivery Port 2 1/2-14 NPT
Delivery Port 3 3/8-18 NPT Delivery Port 3 3/8-18 NPT
Delivery Port 4 3/8-18 NPT Delivery Port 4 3/8-18 NPT
Exhaust Port Dust Shield Exhaust Port Dust Shield
Maximum Operating Temperature 200 °F (93 °C) Maximum Operating Temperature 200 °F (93 °C)
Minimum Operating Temperature -40 °F (-40 °C) Minimum Operating Temperature -40 °F (-40 °C)
Mounting M8 x 1.25-6g Stud (2x) Mounting M8 x 1.25-6g Stud (2x)
Mounting Bracket Direction Down Mounting Bracket Direction Down
Mounting Bracket Location Above Cover Mounting Bracket Location Above Cover
Supply Port 1 1/2-14 NPT Supply Port 1 1/2-14 NPT
Supply Port 2 1/2-14 NPT Supply Port 2 1/2-14 NPT
Included Mounting Bracket Included Mounting Bracket

Useful Information

Description and Purpose:

Designed to provide precise air flow control in truck braking systems, the Genuine Bendix Air Brake Relay Valve R-12, available in new condition and cataloged under Part number: 065303, ensures fast and balanced brake response across severe service, medium duty, and linehaul vehicles. This valve modulates pressure through its 2 SUP / 4 DEL configuration, supporting safe and consistent brake engagement. Cross reference: 065303BXW.

Why Replacement is Important:

A compromised relay valve can disrupt air flow, causing delayed or uneven braking that impacts safety and control.

Impact on Vehicle Performance:

Secures reliable brake actuation, preserving stopping power for heavy-duty, linehaul, and vocational trucks.

Manufacturer Information:

Bendix® specializes in robust braking components for commercial trucks and buses, providing long-lasting performance, safety, and compliance in demanding operating environments.

Tags & Category: Air Brake Relay Valve, R-12 Relay Valve, Pneumatic Brake Valve, Truck Brake Valve, Air Pressure Valve, Brake Control Valve, Truck Air System, Relay Valve Component

Warranty:

Parts Finder Q offers a 365-days warranty for all types of parts in any condition. The warranty applies exclusively to purchases made directly through our website (partsfinderq.com). Please note that purchases made through third-party platforms like eBay or Amazon are not covered by this warranty.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
  • Icon Truck, Fast Delivery
    Free shipping over $199 Place an order today and receive it on Mar 6
  • Clock Icon
    Orders placed before 7-PM EST will ship same business day
  • Location icon, warehouse pickup point.
    Pickup available usually ready in 24 hours
  • Need it fast? We offer overnight shipping

    Contact us to check if overnight next-day delivery is available for your order - PN: 065303