Description
xShop Now Genuine Porsche Feed Line Online – Part 99710602402
The Genuine Porsche Feed Line 99710602402 is an original OEM oil separator feed line specifically designed for the Porsche 997 S 3.8L engine. This line connects to the lower port of the main air-oil separator (AOS) and plays an important role in maintaining correct crankcase ventilation and engine vacuum balance.
In the M97 3.8L flat-six engine, proper airflow and oil vapor separation are very important for smooth performance. A cracked or worn Porsche oil separator line can cause rough idle, vacuum leaks, increased oil consumption, or a check engine light. Replacing a damaged hose with a genuine Porsche engine hose ensures stable engine operation and prevents further issues.
This OEM Porsche crankcase hose is manufactured according to factory specifications. It offers accurate fitment without modification and is built from heat-resistant material designed to withstand continuous thermal cycles and oil vapor exposure. Because of this, installation is simple and reliable, especially when replacing the main air-oil separator.
It is strongly recommended to inspect the Porsche 997 air oil separator pipe during AOS replacement or major engine service. Over time, plastic components may become brittle due to engine heat. Preventative replacement helps maintain the original driving performance of your Porsche 997 S 3.8L.
At Europeanautospares, we supply genuine Porsche spare parts that meet strict OEM standards. Whether you are solving a vacuum leak issue or performing routine maintenance, this Porsche OEM replacement hose supports long-term reliability.
You can purchase this product not only in the UAE but also order it online from anywhere in the world. We provide secure worldwide shipping so Porsche owners globally can access genuine components easily.
Specifications
- Brand: Porsche
- Part Number: 99710602402
- Previous Revision: 99710602401
- Product Type: Oil Separator Feed Line
- Material: OEM heat-resistant molded hose
- Condition: New
- Fitment Type: Direct replacement
- Engine Compatibility: 3.8L M97 Flat-6
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Manufacturing Standard: Porsche factory specification
Why Choose European Auto Spares
Factory-Approved Porsche Quality
At Europeanautospares, we supply genuine Porsche components manufactured according to original factory standards. This ensures proper fit, durability, and performance.
Accurate Match for Application
This Porsche crankcase ventilation pipe is precisely designed for the M97 engine system. No cutting, trimming, or adjustment is required.
Suitable for High-Performance Engines
Porsche engines operate at high temperatures. This genuine Porsche oil separator line is built to handle repeated heat cycles and oil vapor exposure during daily driving.
Compatibility Checks Available
Our team can assist with VIN verification to confirm that the Genuine Porsche Feed Line 99710602402 matches your vehicle correctly.
Worldwide Fulfilment
Europeanautospares is based in Dubai, UAE, and supplies Porsche spare parts globally. You can order online from any country, and we will deliver safely to your location.
Need Help Finding the Right Porsche Part?
We are based in Dubai and serve customers worldwide. Connect with our auto specialists for expert support with part verification, compatibility, pricing, and warranty details. Our team can source the correct Porsche spare parts and deliver them directly to your doorstep, locally or anywhere across the globe.
Maintain Reliable Engine Ventilation Performance
The Genuine Porsche Feed Line 99710602402 may be a small component, but it plays a very important role in maintaining proper crankcase pressure and oil vapor control. A failing Porsche 997 oil separator line can disturb engine balance and reduce efficiency.
Replacing this feed line together with the air-oil separator helps maintain smooth idle, stable vacuum pressure, and consistent performance. Using genuine Porsche OEM parts protects the original engineering quality of your vehicle and reduces the risk of repeat repairs.
At Europeanautospares, we focus on providing high-quality OEM Porsche parts that help maintain factory-level reliability and driving performance.
Fitment Details
xGenuine Porsche Water Pump / Thermostat Line Fitment
Cooling System Specification Matrix — Part Number: 99710602402 Finalized Design Overhaul Bypass Assemblies
| Model / Generation | Application Details (Cooling System — Water Pump & Thermostat Bypass Lines) | Year Range |
|---|---|---|
| Porsche 911 Carrera (997.2) | Rear Gen II 3.6L Direct Injection H6 (345HP — MA1.02) Cooling Feed Paths — Low-Profile Rigidity Tube | 2009–2012 |
| Porsche 911 Carrera S (997.2) | Rear Gen II 3.8L Direct Injection H6 (385HP — MA1.01) Thermostat Loops — High-Volume Variable Bypass Line | 2009–2012 |
| Porsche 911 Carrera 4 (997.2) | Rear Gen II 3.6L DFI All-Wheel Drive Models — Central Vent Assemblies — Symmetrical Sump Cross-Over Connection | 2009–2012 |
| Porsche 911 Carrera 4S (997.2) | Rear Gen II 3.8L DFI All-Wheel Drive Performance Trims — Block Radiators — High-Velocity Thermostat Feed Link | 2009–2012 |
| Porsche 911 Carrera GTS (997.2) | High-Output 3.8L DFI Flat-Six (408HP — GTS Spec) Water Pump Interlinks — Power-Calibrated Interlink Pipe | 2011–2012 |
| Porsche 911 Carrera 4 GTS (997.2) | High-Output 3.8L DFI AWD Widebody Engine Bay Coolant Feed Controls — Reinforced Wide-Track Cross-Cowl Line | 2012 |
| Porsche 911 Targa 4 / 4S (997.2) | Open-Top Glass Roof 3.6L / 3.8L DFI Engine Block Core Cooling Lines — Structural Multi-Branch Stabilization Bridge | 2009–2012 |
| Porsche 911 Speedster (997.2) | Limited-Edition 3.8L DFI (408HP) Collector Chassis Maintenance Runs — Premium Heritage Engine Bay Vent Run | 2011 |
Weissach Powertrain Laboratory & Hydraulic Cavitation Prevention Notice
This professional-grade, multi-branch rigid coolant pipe assembly, integrated vent loop, and high-pressure thermostat stabilization bypass configuration (**Part Number: 99710602402**) is engineered strictly for the secondary engine cooling circuits of the second-generation direct-injection (DFI) flat-six engine family (MA1.01 / MA1.02 architectures) powering the 997.2 chassis series. Positioned deep within the high-density, low-clearance packaging corridor between the engine block water pump outlet housing and the primary thermostat casing, this critical bypass pipe handles continuous high-temperature hydraulic flow streams to prevent air-binding, local cavitation pockets, and extreme cooling system pressure fluctuations.
Critical Design Evolution and Engineering Supersession Warnings: Technicians, independent Porsche specialists, and cooling system rebuilders must verify component version codes before beginning teardown operations. This part number represents the absolute final factory design revision, meticulously re-engineered by Porsche to permanently resolve thermal fatigue and micro-cracking defects that plagued original production runs. **It supersedes and fully replaces legacy part numbers 99710602400 and 99710602401**.
Early design variants relied on a more compliant polymer matrix that degraded under severe heat cycles, leading to structural flattening, micro-fissure leakage along the molded seams, and vacuum drop-outs. **Never attempt to procure or install NOS (New Old Stock) 99710602400 or 99710602401 components during an engine refresh or water pump overhaul. Sourcing a pre-update line introduces immediate risks of material stress failure. Under heavy track loads and elevated RPM bands scaling past 7,000 RPM, the extreme localized coolant velocities and rapid thermal transitions will split an unrevised plastic seam. This structural failure causes immediate under-car fluid dumps, drops system backpressure, and allows unmetered vapor pockets to lock the cylinder head jacket, causing immediate local head warping, cracked valve seats, and complete block engine failure**.
Dismantling, Sealing & Bleeding Best Practices: Accessing this multi-branch line mandates moving the vehicle onto a mid-rise or two-post frame lift, removing the lower aerodynamic splash armor panels, unbolting the center exhaust muffler shielding, and partially lowering the rear engine carrier crossmember to establish a sufficient tool clearance envelope. Never attempt to forcefully pry or wrench the rigid pipe arms out of the engine block sockets with raw metal screwdrivers, which will permanently scratch or score the soft aluminum water pump and thermostat housing receiver bores.
Carefully separate the connection joints using a specialized hose pick tool, slipping the legacy compression spring clamps back. Meticulously clean out calcified coolant crust, scale deposits, and old rubber residue tracking from the receiver bore walls using a fine nylon detailing brush and quick-drying chemical brake parts cleaners. **Technicians must replace all companion perimeter O-ring seals exclusively with new, factory-supplied high-fluorine Viton elements pre-lubricated with a trace glaze of clean coolant or specialized assembly gel**. Never install these dry, as a dry elastomer will twist, score, or slice during insertion, resulting in a low-resistance weep path.
Slide the updated rigid pipe assembly squarely into its receiver sockets, making sure the integrated mounting tabs seat perfectly flush against the engine casing benchmarks before starting the bolts. Torque all structural bracket retention fasteners strictly to the factory workspace manual parameters: 10 Nm. Following assembly, fill the system using an automotive vacuum-refilling tool to prevent trapping residual air columns deep inside the heater core or front radiator lines. Pop the rear engine compartment mechanical bleeder valve clip into its vertical, open-vent testing position, run the flat-six engine until it transitions into total thermostat opening stability, and confirm a flawless leak-free seal profile before returning the vehicle to service.
Upgraded Heat-Stabilized Polyamide 66 (PA66-GF30) Core
The primary rigid multi-branch pipe structure is molded from an advanced, 30% glass-fiber reinforced, heat-stabilized polyamide 66 (PA66-GF30) composite matrix. This upgraded material architecture delivers maximum structural rigidity, zero material creep under prolonged hydraulic tensioning, and total resistance against long-term chemical decay from modern organic acid technology (OAT) anti-freeze additives.
Precision Injection-Molded Anti-Ovation Barb Connectors
The connection ends and branch junctions are formed via precision injection-molding tooling to maintain perfect concentric circular cross-sections. This engineering standard completely prevents connector ovalization, wall thinning, or localized stress concentration, securing a persistent, leak-free compression envelope under intense cooling system pressures scaling past $1.5\,\text{bar}$.
FAQs
xFrequently Asked Questions
It connects to the lower port of the oil separator and supports proper crankcase ventilation by managing airflow and oil vapor circulation.
Yes, it is a genuine OEM Porsche component produced to factory standards.
Rough idle, vacuum leaks, oil consumption issues, whistling noise, or a check engine light.
It is usually replaced during air-oil separator service or when cracks and brittleness are visible.
Yes, Europeanautospares ships worldwide. You can order this genuine Porsche feed line online from the UAE or any location globally.
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xShipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
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