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07eins GmbH
07eins Reinforced Viton Gasket for Pump-Nozzle Unit (PDE) in TDI Engines
07eins Reinforced Viton Gasket for Pump-Nozzle Unit (PDE) in TDI Engines
VITON gasket for TDI engines: One set of VITON gaskets is required per injector. Newly developed VITON gaskets with an oversized fit, made from high-quality VITON sealing material, for the upper injector seat.
45 reviews
SKU:071MTR001PDEV
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17,90€
Normal price
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17,90€
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Original by 07eins
Reinforced VITON unit injector seals for pump-jet TDI engines with unit injectors
High-quality FKM/FPM seals for unit injectors
Reinforced unit injector seals made of VITON / FKM / FPM for pump-jet TDI engines with unit injectors from the Volkswagen Group. Designed as a high-quality addition for PDE repairs, engine overhauls, and work on unit injectors—especially when used in combination with the ORIGINAL 07eins PD injector bridge or the ORIGINAL 07eins PD injector retainers.
Reinforced sealing for unit injectors For a technically sound PDE repair foundation
VITON
FKM / FPM Material
High-quality sealing material for demanding applications in the engine compartment.
+
Larger contact area
For a more robust seal on the unit injector.
PDE
for TDI engines
Suitable for work on unit injectors in compatible TDI engines.
System
with PDE mounting
Particularly durable when used in combination with a PD injector bridge or PDE injector retainers.
Why unit injector seals are so important for TDI engines.
In pump-jet TDI engines with unit injectors, the unit injectors are located directly in the cylinder head. Sealing is achieved via sealing rings on the unit injectors. If these seals become brittle, damaged, or subjected to one-sided stress due to movement of the unit injectors, the seal may deteriorate.
This can lead to typical PDE problems: starting difficulties, rough engine running, jerking, loss of power, diesel in the engine oil, or rising oil level. This is precisely why unit injector seals should not simply be reused when working on the unit injectors, but should be consistently replaced.
Recognizing typical PDE problems
These symptoms may indicate leaking or migrating PDEs
Many customers initially look for symptoms rather than unit injector seals. Especially in older pump-jet TDI engines with unit injectors, leaking or poorly seated unit injectors can cause various problems.
Difficulty starting when cold or warm
The engine starts poorly in the morning, after sitting for a long time, or even when warm. Often, it takes more cranking before the TDI runs smoothly.
Rough engine operation and jerking
The engine runs rough, shakes at idle, or responds unevenly while driving. A faulty PDE seal can affect the injection process.
Loss of power and reduced torque
If the seal on the unit injector is no longer functioning properly, this can be noticeable in the vehicle’s performance: reduced power, sluggish acceleration, or uneven acceleration.
Oil dilution / rising oil level
If the oil level appears to be rising or the engine oil smells like diesel, fuel may be entering the engine oil. This is critical for the bearings, camshaft, turbocharger, and engine lubrication.
Diesel odor in the oil
Diesel in the engine oil is a serious warning sign. If the oil is diluted, its lubricating properties decrease—and with that, the risk of costly consequential damage increases.
Recurring leaks
If seals have already been replaced and the problems recur shortly thereafter, the cause is often not solely the seal itself, but rather the mechanical condition of the PDE seat.
What the reinforced VITON unit injector seals do
The reinforced VITON unit injector seals replace the old sealing rings on the unit injector and help ensure a better seal in the PDE seat area. They are particularly useful when unit injectors are being removed anyway as part of a repair, overhaul, or diagnostic check.
Renews the seal on the PDE Old, hardened, or damaged sealing rings are replaced with high-quality VITON / FKM / FPM seals.
Enlarged contact surface The reinforced design ensures a more robust seal at the unit injector.
Recommended for PDE work When the PDEs are removed, the unit injector seals should always be replaced—not reused.
Complements PD injector bridge and PDE injector retainer The repair is particularly effective when new gaskets are combined with mechanical PDE fasteners.
For a clean repair base The seals are an important component of a professional unit injector repair.
Important note
Reinforced gaskets alone do not permanently solve the PDE problem
Reinforced VITON unit injector seals are an important component of a professional unit injector repair. However: They do not eliminate the actual design-related cause of the problem. If the unit injectors continue to shift, tilt, or wear into the sealing surfaces in the cylinder head, even new and reinforced gaskets will be stressed again.
Replacing only the gaskets = usually only a temporary solution
If only new unit injector seals are installed without mechanically stabilizing the unit injectors, the root cause remains. The PDEs can continue to move and place one-sided stress on the seals again. In practice, this can mean: The repair lasts only a few thousand kilometers—then starting problems, rising oil level, diesel in the oil, or leaks reoccur.
A lasting solution is only achieved with mechanical PDE fixation
The truly effective, long-term solution therefore lies in the system: The reinforced VITON unit injector seals handle the sealing. The ORIGINAL 07eins PD injector bridge or the ORIGINAL 07eins PD injector retainer additionally mechanically stabilizes the unit injectors. It is precisely this combination that prevents the new seals from being overloaded again by migrating PDEs.
PD injector bridge
Centers and stabilizes the unit injectors in the VW T5 2.5 TDI. This keeps the PDEs more precisely in position, allowing the seals to operate more effectively over the long term.
PD injector retainer
Stabilize unit injectors directly on the PDE housing and are the ideal 07eins solution for many 3-, 4-, 5-, and 10-cylinder pump-jet TDI engines with unit injectors.
Reinforced VITON seals
Complement the mechanical fixation with a larger contact surface, robust VITON material, and improved sealing around the unit injectors.
A Sustainable Repair Solution
Only the combination of new sealing and mechanical PDE stabilization addresses both the cause and the symptom simultaneously—for a significantly more sustainable repair.
Clear recommendation from 07eins:
Do not consider reinforced VITON unit injector seals as the sole long-term solution. If the known PDE migration is already the cause, the unit injector must also be mechanically secured—depending on the engine, using the ORIGINAL 07eins PD injector bridge or the ORIGINAL 07eins PD injector retainer. Only in this way is the PDE problem addressed sustainably, and the repair has a chance of providing lasting peace of mind.
Why unit injector seals should always be replaced during an engine overhaul
Once unit injectors are removed, the gaskets should not be reused. The old gaskets have already been exposed to thermal stress, fuel contact, pressure, movement, and aging. Reusing them can significantly compromise the reliability of the repair.
Old seals can harden
Over time, seals lose their elasticity due to age, temperature, and fuel contact. This reduces their sealing effectiveness.
Disassembly puts stress on the seal
When removing the unit injectors, sealing rings can be further damaged or deformed. Therefore, they should always be replaced.
Small leaks can be costly
Poor sealing can lead to starting problems, diesel in the oil, rising oil level, and consequential damage.
Minimal extra effort with the engine open
If the PDE units are accessible anyway, replacing the seals is a sensible step toward a thorough repair.
Why VITON / FKM / FPM?
VITON is a high-quality fluorocarbon rubber sealing material, also known in technical circles as FKM or FPM. It is used where seals are continuously exposed to high stresses from temperature, fuel, oil, and chemical influences.
High temperature resistance Suitable for demanding operating conditions in the engine compartment.
Resistant to fuel and oil Important for seals that operate directly in the vicinity of diesel, engine oil, and high temperatures.
Robust sealing at the PDE The reinforced design ensures a more reliable seal in the unit injector area.
A useful addition for PDE repairs Highly recommended when unit injectors are being removed, inspected, or re-secured anyway.
What applications are the seals intended for?
The reinforced unit injector seals are designed for work on unit injectors and are particularly suitable as part of a comprehensive PDE repair.
Unit injector repair Engine overhaul PDE removal PD injector bridge assembly PD injector retainer installation Oil dilution diagnosis Check for starting problems Preventing Diesel in Oil
Recommended Combination
The most effective solution is achieved with the complete repair system
When dealing with known PDE issues, it makes technical sense not to focus on just a single component. The gasket, mechanical mounting, wiring harness, and installation hardware all work together. That’s why 07eins offers Complete Sets and Ultimate Sets depending on the engine.
PD injector bridge Complete Set
For VW T5 2.5 TDI with PD injector bridge, reinforced gaskets, and installation kit.
PD injector bridge Ultimate Set
Includes PD injector bridge, gaskets, installation kit, and ORIGINAL VW wiring harness.
PD injector retainer Complete Set
For many 3-, 4-, and 5-cylinder TDI engines, including PD injector retainers, gaskets, and mounting kit.
PDE Injector Retainer Ultimate Set
Includes PDE injector retainers, gaskets, installation kit, and ORIGINAL VW wiring harness.
Additional support on the 07eins website
PDE Problem Check Check if the typical symptoms match a PDE problem. Open PDE Problem Check
Installation Instructions Support for your own PDE work and installation steps. Go to the installation instructions
Workshop Finder Have the repair performed by a partner workshop. Find a workshop
Scope of delivery
- Reinforced PDE gasket set made of VITON / FKM / FPM
- Design depends on the selected product variant
- Suitable for work on unit injectors
Delivery time
Available for immediate shipment upon receipt of payment. Orders received and paid for by 11:00 a.m. are usually shipped the same day.
Important note regarding effectiveness
The reinforced VITON unit injector seals are a high-quality component of a unit injector repair, but they do not replace the mechanical stabilization of moving unit injector units.
If the PDEs are already operating in the cylinder head, tilting, or working their way into the sealing surfaces, a suitable mechanical fixation should also be used—depending on the engine, either the ORIGINAL 07eins PD injector bridge or the ORIGINAL 07eins PD injector retainer.
Any resulting installation costs, disassembly costs, consumables, diagnostic costs, and other associated costs are always the customer’s responsibility and will not be reimbursed.
Buy reinforced VITON unit injector seals — but use them correctly.
The reinforced unit injector seals are the sensible sealing solution for work on unit injectors. For a sustainable solution to the well-known PDE problem, 07eins recommends combining them with mechanical PDE fixation using a PDE injector bridge or PDE injector retainer.
Fast delivery times (DHL, DHL Express, UPS)
Fast delivery times (DHL, DHL Express, UPS)
We ship orders that received and paid by 11:00 are, same day (Mondays to Fridays) by DHL.
Express deliveries are made by UPS or DHL Express delivered.
Manufacturer
Manufacturer
07eins GmbH
Willenbach 12
84367 Reut
Germany
Email: info@07eins.com
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Aljosha Wie immer großartig. Wir verbauen seit mehreren Jahren Rep-Sätze von 07Eins und konnten vielen unserer Kunden eine Wirtschaftliche Instandsetzung bieten.
Vielen Dank !
K
Karl servus,
ich bin unglaublich zufrieden mit den neuen Dichtungen. Diese haben tatsächlich das Problem mit den undichten PD-Elementen vorerst gelöst.
Wenn der Wagen wieder komplett hergerichtet ist, werden noch die speziellen Halter mit verbaut werden.
Weiterhin hat man einen unglaublich guten Ansprechpartner, der am Telefon wie auch per Mail immer sehr gut verständlich, freundlich und hilfsbereit Auskunft gibt.
Besser geht es nicht!
H
Henning Koehler Dipl. Ing. Die Abdichtung funktioniert
Einbauanleitung wäre hilfreich.
Kommt es zum Abscheren oder ist das durch Kegelform im Zylinderkopf ausgeschlossen?
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