Kinsler Fuel Pressure Regulator

Kinsler K-140 Fuel Injection Pressure Relief Valve – Viper V10

Rare opportunity to own a genuine Kinsler Fuel Injection K-140 Pressure Relief Valve originally used as a NASCAR Cup Series racing unit. This is a serialized Kinsler unit featuring an FTD-style diaphragm and is preset specifically for use with naturally aspirated Dodge Viper V10 applications.

This valve is pre-owned and has been completely rebuilt and tested by Kinsler Fuel Injection in the summer of 2026. It is preset to 58 PSI and features -8 AN and -6 AN ports along with a side-tower vent.

Viper V10 Application

This Kinsler K-140 is configured for the 8.4L V10 naturally aspirated Dodge Viper. An application-specific mounting bracket for the 8.4L V10 is included, making this an excellent choice for a serious Viper race or competition build.

Features & Specifications

• Manufacturer: Kinsler Fuel Injection
• Model: K-140 Pressure Relief Valve
• Diaphragm: FTD-style diaphragm
• Pressure Setting: 58 PSI preset
• Application: Naturally aspirated Viper V10
• Engine: Dodge Viper 8.4L V10
• Fuel Ports: -8 AN and -6 AN
• Vent: Side-tower vent
• Serial Number: Serialized individual unit
• History: NASCAR Cup Series racing unit
• Condition: Pre-owned racing take-off
• Service: Rebuilt and tested by Kinsler Fuel Injection, Summer 2026
• Mounting: 8.4L V10 mounting bracket included

What's Included

• Kinsler K-140 Pressure Relief Valve
• 8.4L V10 mounting bracket

Limited Availability

Only 3 units are available. These are genuine serialized NASCAR-era Kinsler racing components that have been professionally rebuilt and tested by Kinsler Fuel Injection. Once these three units are sold, additional examples may be extremely difficult to locate.

Note: These are pre-owned racing take-off components. Each unit is serialized and may show normal cosmetic signs of previous racing use. The units have been rebuilt and tested by Kinsler Fuel Injection in Summer 2026.