APR High Pressure Fuel Pumps - S5 4.2L V8 (Pre Nov 2008) - MS100076
SKU: 99131486353

APR High Pressure Fuel Pumps - S5 4.2L V8 (Pre Nov 2008) - MS100076

Sale price$1349.97 Regular price$1499.97
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours Β· Estimated delivery Jul 6 - Jul 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

APR High Pressure Fuel Pumps - S5 4.2L V8 (Pre Nov 2008) - MS100076Overview: The APR High Pressure Fuel Pump (HPFP) dramatically increases the maximum volume of fuel the HPFP can deliver. In doing so, the direct injection fueling system is capable of satisfying fueling requirements set forth by high horsepower setups. This is accomplished by increasing the displacement of the pump using high quality components to exacting tolerances. How the direct injection system works: A low pressure fuel pump (LPFP) in the fuel

Overview:

The APR High Pressure Fuel Pump (HPFP) dramatically increases the maximum volume of fuel the HPFP can deliver. In doing so, the direct injection fueling system is capable of satisfying fueling requirements set forth by high horsepower setups. This is accomplished by increasing the displacement of the pump using high quality components to exacting tolerances. How the direct injection system works: A low pressure fuel pump (LPFP) in the fuel tank delivers fuel to the high pressure fuel pump (HPFP) at roughly 4 to 6 bar. Fuel pressure is then bumped up to a maximum of 136 bar, depending on factory parts, with the HPFP. Finally, high pressure fuel is delivered to the injectors, which spray directly into the cylinders. The problem: The volume of fuel the HPFP pump can displace is directly tied to the displacement of the pump (Internal bore size, and camshaft dictated stroke), and engine speed. The pump is driven off of a camshaft. Upgraded supercharger and turbocharger systems are capable of taxing this system, especially in the mid to lower RPM range where fuel volume is lower. The APR solution: We dramatically increase the volume of fuel the HPFP can displace at every RPM by increasing the displacement of the HPFP. This is accomplished by increasing the bore diameter of the pump's internal pressurizing cylinder. It's important to understand, despite the name, a HPFP upgrade is not necessary designed to increase the engine's fuel rail pressure. The primary goal is to increase the volume of fuel available, which will keep fuel pressure steady even in the most demanding of situations! High quality components and extreme tolerances: 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 internal seals are replaced, including the spring seal, and the tip of the pump retains the factory pivoting head to reduce cam follower wear and piston side loading. Internal testing: All APR HPFPs are assembled in house under strict assembly guidelines. Each pump is then tested on our test rig to ensure the pumps operate as designed. This step is important for several reasons. It's critical in determining if a pump has a failure from incorrect install, a leaking seal, or a bad solenoid. Secondly, a seized pump on the vehicle at startup can cause damage to the engine's camshaft. By testing each pump, we all but eliminate these possibility. Proven track record: APR pioneered HPFP upgrades in the early days of VAG direct injection engines. Soon after, APR became an OEM supplier of HPFP and GDI components to VAG for use in various race cars, racing series, project cars, and concept vehicles. The APR HPFP has been at the center of countless motorsport victories across the globe and has operated with a nearly perfect tract record since the program's motorsport backed inception in 2006. With tens of thousands of pumps sold, APR has a wealth of knowledge, and manufacturing expertise necessary to deliver a product that will and has stood the test of time. This kit included two new rebuilt pumps.

Features:

  • Dramatically increases the volume of fuel displaced by the HPFP
  • Maintains higher pressures under demanding situations
  • Fully rebuilt in house
  • Fully machine tested and broken in before shipping
  • New factory pumps included
  • Upgraded and weight matched spring
  • DLC coated piston
  • Heat-treated bearing-grade stainless steel material
  • Supports big power
  • .00004" dimensional tolerances
  • .00005" geometrical tolerances
  • Spring seals replaced

Application:

Year Make Model Submodel Engine Size
2008 - 2012 Audi S5 Base 4.2L V8

Specs:

Brand APR
Emission Code 4
Larger Bore Yes
Larger Piston Yes
New or Rebuilt Pump New
New Seals Yes
New Spring Yes
Piston / Bore Material Bearing-Grade Stainless Steel
Piston Coating DLC
Product Type High Pressure Fuel Pump
Quantity 2
Rebuild No
Tested Yes
Warning California Proposition 65
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 99131486353

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 β˜…β˜…β˜…β˜…β˜…
Based on 604 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Dylan Cardona
Belleville, US
β˜…β˜…β˜…β˜…β˜… 5
This is absolute wonderful.
Format: Paperback, Format: Paperback
Part of DC absolute universe. Reimagined Wonder Woman and yet still feel like classics. The whole story is out standing, tell a new origin story as well very engaging. Reading was great and art look great and help tell the story. Recommend and will continue this series.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
J
Verified Purchase
Jason Bean
Bozeman, US
β˜…β˜…β˜…β˜…β˜… 5
The Best of the Absolute bunch!
Format: Paperback
What makes this Absolute title work so well is that, despite some reworkings this comic is still 100% Wonder Woman, both in tone and story structure! Don’t get me wrong, I like Ab Batman and Superman but I love this comic! Best Wonder Woman in years!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
C
Verified Purchase
Clint Stanley
Grantham, US
β˜…β˜…β˜…β˜…β˜… 5
Diana remains true to her Core!
Format: Hardcover
A truly unique take on the Amazon Princess with stunning visuals, beautiful art and throughly engrossing story. I most appreciate seeing the character of Diana remaining firm even when all the circumstances of her life have changed. Highly recommend to both the new reader and the longtime fan that would enjoy a fresh take on an old friend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
J
Verified Purchase
James D Winborn
West Palm Beach, US
β˜…β˜…β˜…β˜…β˜… 4
Pretty good, all things considered.
Format: Hardcover
Definitely gets better in the second arc, but the first one is worth picking up nonetheless.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
N
Verified Purchase
Nyxi
Bozeman, US
β˜…β˜…β˜…β˜…β˜… 5
Powerful story that shows a different side of Wonder Woman
Format: Paperback
Loved it!!! I’ve always been a WW fan, and this take shows a side of her that’s both empowering and fierce. The storytelling feels bold and modern without losing what makes her iconic. The artwork is stunning, rich colors and sharp detail that really pull you in. The book itself is quality. Absolute Wonder Woman delivers a story that feels fresh, strong, and unapologetically powerful.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 9, 2025

recommand products