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Hose Genuine Porsche part 91120702905

Code: 91120702905

Genuine Porsche part

Hose

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• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

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Related products

Engine oil tank external filling. Porsche 911 1972 "Oil Klapper"

91120701006/1

Product Information

Engine Oil Tank for the 1972 "Oil Klapper"

Preserve the originality and reliability of your classic Porsche with this OE Match Rear Engine Oil Tank, designed exclusively for the one-year-only Porsche 911 1972 "Oil Klapper". Manufactured to original equipment specifications, this premium replacement oil tank is engineered to provide factory-correct fitment, capacity and functionality for the unique external oil filler system fitted only to the 1972 model year.

Fits:

Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Diagram Ref No 19

The 1972 Porsche 911 is one of the most sought-after classic 911 models, thanks to its distinctive external oil filler flap and revised oil tank location. This OE Match oil tank allows owners and restoration specialists to maintain the originality and performance of this iconic air-cooled Porsche.

What Does the Rear Engine Oil Tank Do?

Unlike conventional wet sump engines, the Porsche 911 uses a dry sump lubrication system. The oil tank stores the engine's oil supply separately from the crankcase, ensuring a constant supply of oil under all driving conditions.

Its primary functions include:

Storing the engine's oil reserve.
Supplying oil to the engine lubrication system.
Allowing the scavenging pump to return oil from the engine.
Maintaining stable oil pressure during cornering, braking and acceleration.
Assisting with engine oil cooling.
Supporting the unique external oil filling system found only on the 1972 Oil Klapper.

A properly functioning oil tank is critical to engine lubrication, cooling and long-term engine durability.

Why Do Rear Engine Oil Tanks Fail?

Although built to last, original oil tanks are now over 50 years old and are susceptible to deterioration. Common causes of failure include:

Internal corrosion caused by moisture and condensation.
External corrosion from road salt and dirt.
Stone damage.
Accident damage.
Rust around mounting brackets and seams.
Contamination from degraded engine oil.
Previous poor-quality repairs or welding.

Corroded or damaged oil tanks can develop leaks, contamination issues and reduced reliability, placing the engine at risk of lubrication failure.

When Should the Rear Engine Oil Tank Be Replaced?

Replacement is recommended whenever you notice:

Oil leaks from the tank or welded seams.
Internal corrosion or sludge contamination.
Significant external rust.
Accident or impact damage.
Damaged mounting points.
During a complete vehicle or engine restoration.

Replacing an ageing oil tank helps ensure reliable lubrication, protects the engine and preserves the originality of the rare 1972 Porsche 911.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91120701006

91120701002

91120701000

91120701003

91120701006

The product you are viewing cross references to these numbers

Radiator Engine oil cooler front "Snake Type". Porsche 911 1974-79 / 930 1975-77

91120705001/1

Product Information

Front Radiator Engine Oil Cooler "Snake Type"

Restore efficient oil temperature control to your classic air-cooled Porsche with this OE Match Front Radiator Engine Oil Cooler. Better known as the Snake Type Oil Cooler or Trombone Oil Cooler, this OE-quality replacement is designed to match the original equipment fitted to Porsche 911 models.

Fits:

Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Porsche 911 1978-1983 3.0L / SC
Porsche 911 1975-1977 3.0L Turbo (930)
Porsche 911 1978-1989 3.3L Turbo (930)

Positioned within the front right-hand wheel arch, the Trombone Oil Cooler forms an integral part of Porsche's legendary dry sump lubrication system. Its distinctive looped tube design increases the surface area exposed to airflow, allowing engine oil to dissipate heat before returning to the oil tank. Although simple in construction compared to later finned radiator-style coolers, the Trombone Oil Cooler proved to be an effective and reliable solution for controlling engine oil temperatures in early impact bumper 911s and first-generation 930 turbos.

Manufactured to OE Match specifications, this replacement offers factory-correct fitment, dependable performance and excellent durability, making it the ideal choice for restorations, preventative maintenance and originality-focused repairs.

What Does the Snake Type (Trombone) Oil Cooler Do?

Unlike water-cooled engines, air-cooled Porsche engines rely heavily on engine oil to remove heat as well as lubricate internal components. The front-mounted Trombone Oil Cooler helps to:

Reduce engine oil temperatures.
Improve heat dissipation during sustained driving.
Maintain stable oil viscosity.
Protect pistons, bearings and internal engine components.
Improve engine reliability during hot weather and spirited driving.
Extend engine life by maintaining consistent operating temperatures.

By cooling the oil before it returns to the engine, the Trombone Oil Cooler plays a vital role in preserving the health of your classic flat-six engine.

Why Do Trombone Oil Coolers Need Replacing?

After decades of service, the original oil cooler may suffer from:

External corrosion caused by moisture and road salt.
Stone damage from debris entering the wheel arch.
Impact damage.
Internal contamination.
Fatigue cracks or pinhole leaks.
Damage caused during previous repairs.
Reduced cooling efficiency due to age.

Even a minor oil leak can lead to falling oil pressure and increased engine temperatures, making timely replacement essential.

Symptoms of a Failing Oil Cooler

Common warning signs include:

Engine oil leaks around the front wheel arch.
Oil residue on the cooling loop.
Rising engine oil temperatures.
Burning oil smell after driving.
Visible corrosion or physical damage.
Reduced cooling performance.
Falling oil level without obvious engine leaks.

Any evidence of oil leakage should be investigated immediately to prevent costly engine damage.

When Should the Oil Cooler Be Replaced?

Replacement is recommended when:

Oil leaks develop.
The cooling loop becomes corroded or damaged.
Accident damage has occurred.
Restoring a classic Porsche to factory condition.
Replacing front oil pipes or oil lines.
Carrying out a complete engine rebuild or lubrication system overhaul.

Replacing ageing oil cooling components helps maintain optimum lubrication and protects your engine for years to come.

Why Choose an OE Match Oil Cooler?

Our OE Match Snake Type Oil Cooler has been manufactured to faithfully reproduce the original Porsche component.

Benefits include:

Authentic Snake Type (Trombone) configuration.
OE-quality construction and fitment.
Precision-formed cooling loop.
Excellent oil flow characteristics.
Corrosion-resistant finish.
Straightforward installation using factory mounting points.
Perfect for restoration and maintenance projects.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91120705001

91120705001

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Oil level dipstick. Porsche 911 1972 "Oil Klapper"

91120704100/1

Product Information

Oil Level Dipstick "Oil Klapper"

Maintain accurate engine oil level measurement with this OE Match Oil Level Dipstick, designed specifically for the unique 1972 Porsche 911 "Oil Klapper" models. Manufactured to original equipment specifications, this precision-engineered replacement dipstick ensures accurate oil level readings, helping to protect your classic air-cooled flat-six engine from the damaging effects of incorrect oil levels.

Fits:

Porsche 911 1972 2.4L LWB (F)

Diagram ref no 55

The 1972 model year Porsche 911 is one of the most distinctive and sought-after classic 911s. Often referred to as the "Oil Klapper", it features a one-year-only external oil filler flap mounted behind the passenger-side door (right-hand rear wing on left-hand drive cars). This unique design relocated the oil tank forward for improved weight distribution, making several oil system components—including the dipstick—exclusive to the 1972 model.

Whether you're restoring an original 1972 Porsche 911 or replacing a damaged or missing dipstick, this OE Match replacement delivers factory-correct fitment, accuracy and appearance.

What Does the Oil Level Dipstick Do?

The oil level dipstick provides a simple but essential method of accurately checking the engine oil level within the external dry sump oil tank.

Its functions include:

Accurately measuring engine oil level.
Preventing overfilling or underfilling.
Helping maintain correct engine lubrication.
Supporting proper oil cooling performance.
Protecting internal engine components from premature wear.
Assisting routine servicing and maintenance.

Correct oil level is particularly important on air-cooled Porsche engines, where the engine oil performs both lubrication and cooling functions.

Why Does the Dipstick Need Replacing?

Although a simple component, the dipstick can become damaged over time through:

Corrosion.
Accidental bending.
Wear to the handle or measuring marks.
Loss during engine work.
Fatigue after decades of use.

An inaccurate or damaged dipstick can result in incorrect oil level readings, increasing the risk of engine damage.

Symptoms of a Damaged Dipstick

Common signs include:

Bent or distorted measuring blade.
Worn or unreadable oil level markings.
Corrosion or rust.
Loose or damaged handle.
Poor sealing in the oil filler neck.
Difficulty obtaining accurate oil level readings.
Missing dipstick.

Replacing the dipstick restores confidence when carrying out routine oil level checks.

When Should the Oil Level Dipstick Be Replaced?

Replacement is recommended when:

The original dipstick is bent or damaged.
Oil level markings have become difficult to read.
The dipstick has been lost.
Restoring a 1972 Porsche 911 to factory specification.
Replacing damaged oil filler components.
Carrying out a full oil system refurbishment.

A new OE Match dipstick ensures accurate oil level monitoring and helps protect your engine.

Why Choose an OE Match Oil Level Dipstick?

Our OE Match dipstick has been manufactured to faithfully replicate the original Porsche component.

Features include:

OE-quality dimensions and calibration.
Factory-style handle and finish.
Durable corrosion-resistant construction.
Accurate oil level measurement.
Direct fit for the original oil tank.
Ideal for concours restorations and routine maintenance.
Straightforward installation.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91120704100

91120704100

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Hose Genuine Porsche part 91120702905