SKU: 84783342751

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

Sale price$1349.97 Regular price$1499.97
Save 10%

Pay in installments of $374.99 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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: 84783342751

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 16 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
O
Verified Purchase
Ochoa
Dallas, US
★★★★★ 5
The material feels strong and durable
Color: Black+Red, Size: For iPad A16 11th/10th Generation (11.0/10.9 Inch), Color: Black+Red, Size: For iPad A16 11th/10th Generation (11.0/10.9 Inch)
I’m really happy with this tablet case. The material feels strong and durable, and it provides excellent protection against drops and bumps. The rugged design gives me peace of mind, especially if the tablet is used by kids. I really like the built-in stand on the back. It’s very convenient for watching videos, doing homework, or video calls. The stand feels stable and doesn’t wobble. The case fits well and all the buttons and camera openings are perfectly aligned. Overall, it’s a great protective case if you’re looking for something sturdy and functional. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
S
Verified Purchase
Stephanie Valenzuela
Massapequa, US
★★★★★ 5
If you know you know
Color: Black+Red, Size: For iPad A16 11th/10th Generation (11.0/10.9 Inch)
It was a little difficult to get to open but I didn’t see there was a device other it to open the protector. It’s pretty light and easy to travel with. It’s has a good grip feel so it can’t just slide off your kids hands. You know how many times I had to look for one of these covers that’s not an expensive ottor man case or whatever it’s called. It works how it’s suppose to I suppose. Functions pretty well not gonna lie. So if you’re looking for something with the right price this is it. Perfect fit in the ya let and hands ease of installation was 8/10.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
M
Verified Purchase
Matthew E. Mills
Draper, US
★★★★★ 5
Spider-Man case
Color: Red+Black, Size: For iPad A16 11th/10th Generation (11.0/10.9 Inch)
Bought it for my daughter for her birthday. She loves it and it's quality product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
A
Verified Purchase
Amanda B
San Leandro, US
★★★★★ 4
It’s Okay but could be better
Color: Black+Red, Size: For iPad A16 11th/10th Generation (11.0/10.9 Inch)
My son loves this case, he drops it regularly and it protects it. I just have one issue, the stands are a bit unstable and they strain easily.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
A
Verified Purchase
Ayana M
Boise, US
★★★★★ 5
Great Quality & Looks Really Cool!
Color: Black+Red, Size: For iPad A16 11th/10th Generation (11.0/10.9 Inch), Color: Black+Red, Size: For iPad A16 11th/10th Generation (11.0/10.9 Inch)
My son LOVES this case for his new iPad! The case feels durable, I love how the Spider-Man eyes on the back of the case come out as a stand for the iPad. This case is great quality and looks really cool. Thank you so much.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026

recommand products