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JHM High Pressure-Mechanical Fuel Pump Pair, Upgraded, HPFP for B7-RS4 w/ 4.2L FSI V8

SKU: JHM-079127025AF-079127026AB



This is a pair of brand new, OEM High Pressure Fuel Pumps for the B7-RS4 with the JHM High Pressure Fuel Pump (HPFP) Kits already installed.

Our brand new, JHM High Pressure Fuel Pump (HPFP) Upgrade installed in a set of brand new pumps will help you get the most out of the direct injection fueling system on your B7-RS4 4.2L FSI V8. Not only does the upgrade increase the amount of fuel your high pressure fuel pumps can deliver but it will also decrease the duty cycle of the N276 solenoid on your pumps. Lowering the duty cycle of the N276 will extend the life of this solenoid - an item that commonly fails on these pumps but isn't available separately. We recommend the upgrade kit that is installed in these brand new, OEM pumps for our JHM Stage 1 Supercharger Kits on the B7-RS4 and B8-S5 with the 4.2L FSI V8s.

In true JHM fashion, we have been performing long term testing on these parts since 2013.

Our HPFP Upgrade will fit all all Audis and Volkswagens with Hitachi High Pressure Fuel Pumps. This includes the Audi B7-RS4 4.2L FSI V8, B8-S5 4.2L FSI V8, B7-A4 2.0T FSI, and Volkswagen Mark V and VI GTIs and GLIs with the 2.0T FSI. This upgrade does not fit newer TSI motors with Bosch pumps.

NOTE: This product includes a PAIR of brand new, OEM B7-RS4 High Pressure Fuel Pumps with the JHM HPFP Upgrade Kits pre-installed. These pumps are side specific and as a set, only fit the RS4. If you are interested in purchasing just the JHM HPFP upgrade kit for your 4.2L FSI V8, please go back one section or search our website for "JHM-HPFPUpgV8".

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- Piston has 50% more area than OEM (OEM Piston Size: 8.0mm versus JHM Piston Size: 9.8mm)
- Piston head optimized for ideal fuel flow direction
- Piston surface hardened before coating
- Piston machined after coating
- Upgraded spring, slightly stiffer than OEM for improved high RPM piston stability
- Uses OEM-style spring keeper

PARTS INCLUDED: 2x Brand new, OEM High Pressure Fuel Pumps with the following parts pre-installed in each pump:
- 1x Upgraded Piston w/ Directional Flow Head
- 1x Upgraded Spring
- 1x Spring Keeper and Tappet Assembly
- 1x Piston Cylinder or Sleeve

- Audi B7-RS4 with the 4.2L FSI V8

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This product fits the following vehicles:
Make Model Chassis Engine
Audi RS4 B7 (2006-2009) 4.2l V8 32v FSI
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You're reviewing: JHM High Pressure-Mechanical Fuel Pump Pair, Upgraded, HPFP for B7-RS4 w/ 4.2L FSI V8
Off-road Use

By Purchasing any Off-Road use ONLY products from JH Motorsports, Inc. I acknowledge and understand the following disclosure. (This notice is located at the bottom of the page description of affected products on our website.)

Vehicle Code § 27156:
(b) No person shall operate or leave standing upon a highway a motor vehicle that is required to be equipped with a motor vehicle pollution control device under Part 5 (commencing with Section 43000) of Division 26 of the Health and Safety Code or any other certified motor vehicle pollution control device required by any other state law or any rule or regulation adopted pursuant to that law, or required to be equipped with a motor vehicle pollution control device pursuant to the National Emission Standards Act (42 U.S.C. Secs. 7521 to 7550, inclusive) and the standards and regulations adopted pursuant to that federal act, unless the motor vehicle is equipped with the required motor vehicle pollution control device that is correctly installed and in operating condition. No person shall disconnect, modify, or alter any such required device.
(c) No person shall install, sell, offer for sale, or advertise any device, apparatus, or mechanism intended for use with, or as a part of, a required motor vehicle pollution control device or system that alters or modifies the original design or performance of the motor vehicle pollution control device or system.

Health and Safety Code § 43000:
43001. The provisions of this part shall not apply to:
(a) Racing vehicles.

As the aforementioned code sections outline, it is against the law to operate or use a vehicle on public streets or highways with modified, altered, or disconnected motor vehicle pollution control devices. This may include but is not limited to, Evaporative Fuel Controls, Catalysts, DPF, PTOX, PCV Systems, Exhaust Gas Recirculation Systems, Oxygen Sensors, Thermostatic Air Cleaners, Air Intake Systems, Fuel Injectors, Regulators, Adjustable Cam Gears, ECU Programming, Mapping, or other Computer Modifications. Air Pumps, Air Injection, Timing, and any other Emission System Modification(s).

Purchaser acknowledges and certifies to JH Motorsports Inc., that Purchasers vehicle will only be used for racing applications or off road vehicle use only. Purchaser requests these modifications for the purpose of enhancing the vehicle for competitive Racing Applications and will not use this vehicle on public streets or highways. Purchaser agrees to indemnify JH Motorsports Inc., all employees, officers, owners, and subsidiaries for any civil or criminal liability arising out of use of Purchasers vehicle on public streets or highways as Purchaser has been duly notified of the laws and regulations regarding disconnecting, alteration, or modification of a vehicle’s pollution control devices. Purchaser understands and has been advised the driving of a vehicle on public streets or highways could result in criminal or civil penalties.

Prop 65

Warning: This product may contain a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm.

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