TGK Motorsport High Pressure Fuel Pump Seal Rebuild Kit - 4.2L(EA824) / 6.3L (EA398)
TGK Motorsport High Pressure Fuel Pump Seal Rebuild Kit - 4.2L(EA824) / 6.3L (EA398)
Regular price
$129.99
Sale price
$129.99
Regular price
Unit price
per
Shipping calculated at checkout.
Couldn't load pickup availability
- Fully secure checkout
- Trusted by thousands
- Rated and reviewed
Documentation
Question about this product?
We're happy to help.
Overview
Over time, the factory high-pressure fuel pump (HPFP) seals in Audi 4.2L EA824 and 6.3L EA398 engines degrade, leading to fuel leaks, pressure loss, and performance inconsistencies. Additionally, upgrading to larger HPFP pistons—often used in high-performance applications—can cause the OEM seal to tear, resulting in fuel seepage and oil dilution inside the motor.
The TGK Motorsport HPFP Seal Rebuild Kit is designed to fix factory leaks, replace torn seals from HPFP upgrades, and restore fuel system integrity. Whether you're performing preventative maintenance or modifying your engine for more power, this kit ensures optimal HPFP operation and long-term reliability.
Specifications
| Engine Compatibility | Audi 4.2L EA824 / 6.3L EA398 |
| Seal Material | Molybdenum Disulfide |
| Application | High Pressure Fuel Pump |
| Installation | Direct Fit Replacement |
| Kit Contents | 2x Base Seal Kits, 2x Cam Follower Guides |
Features & Benefits
✓
Fixes Common Factory HPFP LeaksDirect replacement for failing OEM seals that cause fuel seepage and pressure drops.
✓
Prevents HPFP Upgrade Seal TearingReinforced seals withstand increased pressure from larger piston kits.
✓
Molybdenum Disulfide ConstructionEnhanced durability, superior friction resistance, and improved longevity under extreme conditions.
✓
Restores Fuel Pressure & ReliabilityPrevents fuel seepage, pressure drops, and cold start issues for consistent performance.
✓
Performance & Maintenance SolutionIdeal for both daily-driven and high-horsepower builds with ethanol-tuned setups.
✓
Direct Fit InstallationNo modifications required, works seamlessly with your OEM HPFP system.
Frequently Asked Questions
What are the symptoms of HPFP seal failure?
Common symptoms include fuel smell inside the motor, cold starting issues, warm starting issues, and potential fuel leaks in the engine bay.
Will this kit work with aftermarket HPFP piston upgrades?
Yes, the reinforced seals are specifically designed to withstand the increased pressure from larger aftermarket piston kits that often cause OEM seals to tear.
What's included in the rebuild kit?
The kit includes 2x Base Seal Kits with bottom collars and integrated seals, plus 2x Cam Follower Guides for smooth camshaft interaction.
Is this compatible with ethanol fuel setups?
Yes, the Molybdenum Disulfide seals are performance-proven and tested in real-world applications, including ethanol-tuned setups.
Do I need modifications to install this kit?
No modifications are required. This is a direct fit replacement that works seamlessly with your OEM HPFP system.
