Fuel Pressure Relief Pop Off Valve 2007-2014 RAM 6.7L Cummins

Bosch Fuel Rail Pressure Limiting Valve (PRV/PLV) – 1 110 010 028

This genuine Bosch pressure limiting valve restores proper common-rail pressure control and protects injectors by venting over‑pressure while maintaining stable operating pressure under load. Resolve extended crank, low power, surging, and poor fuel economy caused by a weak or blown pop‑off valve. Built to Bosch OEM specifications, the dual‑stage, spring‑loaded design preserves OE safety strategy and consistent performance across demanding duty cycles.

Key features

• Genuine Bosch OEM Pressure Limiting Valve (PLV) is engineered for high‑pressure diesel common‑rail systems; dual‑stage relief for safety and stability under load.

• Direct‑fit replacement that addresses early bleed‑off, hard starts, power loss, and drivability issues while protecting the rail and injectors from over‑pressure events.

• Calibrated relief set‑point approximately 1600 bar (about 23,200 PSI) for primary opening stage, matched to Bosch common‑rail requirements for the referenced platforms.

Fitment and identification

• Primary part number: Bosch 1 110 010 028 (1110010028).

• Also identified in some catalogs alongside Bosch 1 110 010 015 (1110010015); verify by matching the number stamped on the removed valve for exact application.

• Common names: fuel rail pressure relief valve, pressure limiting valve (PLV/PRV), pop‑off valve.

Specifications

• Manufacturer: Bosch

• Part type: Fuel rail pressure limiting valve (dual‑stage mechanical PRV/PLV) for high‑pressure common‑rail diesel systems.

• Relief pressure: Approximately 1600 bar primary opening (≈23,200 PSI) for the limiting function; dual‑stage calibration for emergency venting and steady‑state regulation.

• Operating principle: Spring‑loaded poppet; normally closed during normal operation, opens at calibrated threshold to protect components, then stabilizes rail pressure to prevent dropouts.

• Thread/port: M20 x 1.5 male thread; sealing via sealing ring (verify on vehicle before installation).

• Materials: Hardened steel body and internals for fatigue and wear resistance in high‑pressure diesel environments.

• Sealing: Replace sealing ring at install to ensure leak‑free operation and proper torque retention.

• Installation torque: Follow OE/Bosch platform‑specific torque; do not overtighten. After install, clear DTCs and validate commanded vs. actual rail pressure in a road test.

• Symptoms addressed: Extended crank/hard start, low actual vs. commanded rail pressure under load, surging, reduced power, and economy loss from premature rail bleed‑off.

What’s included

• Bosch pressure limiting valve (PLV/PRV) 1 110 010 028 with sealing ring.

Cross‑reference table

• The most reliable verification is to match the part number physically stamped on the removed valve to one of the cross‑references above.

• Because this PLV is used across multiple OEM platforms, torque specs and installation procedures should always follow the vehicle/OE service information for the specific application.

• The dual‑stage design provides essential over‑pressure protection; avoid block‑off devices unless a validated safety strategy is in place for the platform.