INA

INA for Porsche

INA Automotive Products deliver advanced, high-precision Porsche components engineered to meet the demanding requirements of today’s automotive engines and drivetrains. As part of the Schaeffler Group, INA is a trusted OEM supplier, working closely with vehicle manufacturers worldwide to develop innovative solutions that improve efficiency, reliability, and performance. For Porsche owners and workshops, INA offers engine and powertrain parts designed for durable, repeatable results in everyday use and specialist environments

A Quick Look at INA

INA information on this page is based on details supplied by the manufacturer or distributor, plus any OE references provided with the parts.

Choosing the Right Fit for Your Porsche

Where INA is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, engine code, side/position, and connector or mounting type where relevant.

• Typical reasons to replace these parts include internal engine wear, timing component fatigue, fuel delivery issues, and age-related deterioration of moving parts and seals discovered during inspection or rebuild work.
• Common symptoms can range from oil leaks, smoke, low compression and abnormal noises to hard starting, hesitation, fuel smells, belt noise, and valvetrain ticking that persists after routine servicing.
• Before major work, simple checks such as compression and leak-down testing, borescope inspection, fuel-pressure checks, and listening for abnormal belt or valvetrain noise can help confirm whether component replacement is required.
• When renewing critical systems, many specialists replace related wear items together (for example, belts with rollers and tensioners, or fuel lines with filters and key seals) to reduce the chance of repeat strip-downs.
• Persistent fuel smells, visible leaks, or noises from rotating components should be treated as urgent issues, as they can affect both safety and the long-term health of your Porsche engine.
• During top-end or timing work, it is common practice to inspect and, where needed, replace associated parts such as sprockets, fixings, and valvetrain components to maintain accurate timing and reliable operation.

Browse by Category

If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.

Engine Rebuild Parts — Engine rebuild parts are typically changed during a planned rebuild or when symptoms point to wear inside the engine, such as loss of compression, excessive oil use, persistent leaks, abnormal noises, or contamination found during inspection. Many Porsche owners choose to renew bearings, chains, guides, seals, fasteners, and gaskets while the engine is apart to improve post-rebuild reliability and avoid repeat labour.

• Before committing to a rebuild, carry out compression and leak-down tests, inspect bores with a scope, and check the oil/filter for metallic debris.
• When the engine is out, consider replacing hard-to-access wear items (chains, guides, tensioners, key seals and gaskets) at the same time.

Fuel System Parts — Fuel-system parts are replaced to restore correct fuel delivery (pressure, flow, and atomisation), improve starting and idle quality, and prevent leaks that can create safety or MOT/emissions issues. On older or stored Porsche models, owners often refresh pumps, lines, filters, injectors, and key seals to resolve hard starting, hesitation, poor economy, or fuel smells.

• Treat fuel smells or visible damp areas around lines, tanks, or injectors as urgent, as vapour and liquid leaks are a fire risk.
• Where the system has aged, replacing components in logical groups (for example lines plus filter and seals) can reduce repeat failures.

Belts / Tensioners / Rollers — Belts, tensioners, and rollers are routine wear items that directly affect engine reliability and timing accuracy. Aged belts can crack or shed material, while tired tensioners and rollers may become noisy or seize, risking belt loss and related damage. Porsche owners typically renew these during scheduled maintenance, engine bay refreshes, or ahead of demanding use.

• Do not rely solely on visual belt condition; internal ageing and bearing wear in rollers or tensioners can exist without obvious external signs.
• Replacing rollers and tensioners at the same time as belts is often recommended, as their bearings are common noise and failure points.

Rocker Arms & Tappets — Rocker arms and tappets are replaced when wear leads to persistent valvetrain noise, poor valve motion accuracy, or risk of cam and valve damage. During Porsche top-end work or performance builds, refreshing these components helps maintain consistent valve timing and lift, supporting smooth running and longevity.

• Investigate ticking that worsens, localises to one bank, or does not improve with fresh oil or correct clearance settings.
• Always inspect cam lobes when rocker or tappet wear is found, as related components often wear together.

Camshaft gears / sprockets and fixings — Camshaft gears, sprockets, and fixings are critical to Porsche timing accuracy. They are replaced when wear, tooth damage, or fastening concerns could allow timing drift, noise, or—in severe cases—internal engine damage. Many rebuilders renew these parts preventatively when carrying out timing-chain or belt work.

• Follow Porsche or part-manufacturer guidance on single-use bolts and fixings, especially where torque-to-yield fasteners are specified.
• When updating sprockets, also assess chains, guides, and tensioners and verify timing during reassembly.

Explore INA at Design911

View the current INA range for Porsche at Design911, then filter by model and category to narrow down to the right parts.