APR 17-26 Audi/Bentley/Porsche EA839 2.9T/3.0T High Pressure Fuel Pump (Rebuild)

The HPFP internals must be machined to extreme tolerances and installed in a clean environment or the pump can easily fail. Dimensional tolerances on the APR HPFP are as tight as .00004" and geometric tolerances are as tight as .00005". The plunger and barrel are created from certified and heat-treated bearing-grade stainless steel and the plunger undergoes a special diamond like coating process for exceptional surfaces hardness and ultra-reliable operation. To prevent float associated with altering the plunger's mass, APR supplies each unit with a properly specified spring. All necessary internal seals are replaced.

• Dramatically increases the volume of fuel displaced by the HPFP by 37%
• +37 AWHP / +50 AWFTLS (B9 2.9T E85 Stage 1 vs 1+ with HPFP)
• Maintains higher pressures under demanding situations
• Heat-treated bearing-grade stainless steel material
• Fully machine tested and broken in before shipping
• Ideal for high output race cars and track use
• Upgraded and weight matched spring
• .00004" dimensional tolerances
• .00005" geometrical tolerances
• Rebuild of your existing pump
• Fully rebuilt in house
• Titanium retainer
• DLC coated piston