WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.The APR High Pressure Fuel Pump Rebuild (MS100143) is a high-performance fueling service for VW and Audi Gen 3 EA888 engines. By increasing the internal displacement of your factory pump, this service provides 37% more fuel volume per stroke. This is the ideal solution for 2.0T and 1.8T owners running Stage 3 turbochargers or Ethanol (E85), as it ensures fuel rail pressure remains stable at 200 bar even under high-load, low-RPM conditions where factory pumps often drop pressure.
During the rebuild process at APR's facility, your pump is outfitted with medical-grade precision internals. The plunger is crafted from heat-treated bearing-grade stainless steel with a Diamond-Like Coating (DLC) and is paired with a titanium retainer and a weight-matched spring. This combination prevents "pump float" at high engine speeds and ensures ultra-reliable operation. Every rebuilt unit is machine-tested and broken-in on APR’s specialized rig to verify the integrity of the seals and solenoids before being returned to you.
Features:
- 37% Increase in Fuel Volume: Expands the fueling ceiling to support larger turbochargers and the high-volume demands of E85.
- Precision Internals: Includes a DLC-coated piston and heat-treated stainless steel barrel machined to .00004" tolerances.
- Titanium Retainer: High-strength, lightweight titanium ensures the assembly remains stable during high-RPM operation.
- Weight-Matched Spring: Corrects the plunger mass to prevent valve float and ensure consistent fuel delivery.
- Rigorous Testing: Every pump is machine-tested on a rig to ensure zero leaks and perfect solenoid function before shipping.
- Proven Reliability: Built upon APR's nearly two decades of experience as a GDI component supplier for professional VAG race teams.
IMPORTANT NOTE: This is a REBUILD SERVICE ONLY.
- You must ship your functional factory Hitachi Gen III HPFP to APR to be upgraded.
- Your pump and solenoids must be in working order; APR will inspect and test them upon arrival.
- Packaging Warning: The solenoid connectors are extremely fragile. Failure to package the pump securely may result in irreversible damage during transit.
Technical Specifications:
| Specification | Details |
|---|---|
| Displacement Gain | 37% Volume Increase |
| Dimensional Tolerance | .00004" |
| Internal Material | Heat-Treated Bearing-Grade Stainless Steel |
| Retainer Material | Titanium |
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