do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
- Porsche 957 Cayenne 3.6L 2007-10
Set of 12 exhaust valve
Fits:
Porsche 957 Cayenne 3.6ltr - 2007 to 2010
For Engine Code - 5501
Set contains
Exhaust valve - Short x 6
Exhaust valve - Long x 6
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510531200
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
This spring pair fits all 911's from 1965 to 1994.
Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Click 'Zoom in' for large parts diagram.
Diagram Ref No 13.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110590151
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
This is the standard valve guide used in early air-cooled Porsche 911/930 cylinder heads. It’s a plain (non-hydraulic) guide that locates the valve stem in the head; when worn it causes oil burning, loss of compression and poor valve seating — so they’re commonly replaced whenever heads are rebuilt.
What the part is (technical data / dimensions)
Application: Porsche 911 / 930 from about 1965–1989 (varies slightly by model and year; early cars both intake & exhaust, later years sometimes exhaust only). Standard size (typical OE): ID ≈ 9.00 mm, OD ≈ 13.06 mm, length ≈ 51.2 mm.
- Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Why these guides should be replaced
- Valve guides are a wearing item. Replace them when any of the following occur or when you rebuild the engine head.
- Excessive valve stem play — worn guide ID internal diameter lets the valve rock and misalign with the seat , poor sealing, reduced compression and power.
- Oil consumption / smoking — worn guides allow oil to wick down the stem into the combustion chamber, causing blue/grey smoke and fouled plugs.
- Hard starting, rough idle, misfire — poor sealing / valve timing irregularities from misaligned valves.
- Valve wobble that leads to premature valve stem wear or valve seat damage — once stems or seats are damaged you need deeper surgery.
- If a guide is cracked, broken, or has excessive ovality — must be replaced.
- Whenever you remove and refinish seats / replace springs / do a full head rebuild — replacing guides at that time is cheap insurance and ensures correct alignment.
Inner diameter 9,00 mm
Outer diameter 13,06 mm
Total Length 51,20 mm
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2 and 2A.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010432100
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Sold each.
High-quality replacement valve designed for classic Porsche 911 engines produced between 1978 and 1989.
Fits:
Porsche Carrera 3.0ltr - 1976 to 1977
Porsche 911 SC 3.0ltr - 1978 to 1983
Porsche 911 3.2 Carrera 1984 to 1989
The exhaust valve is located in the cylinder head as part of the engine’s valve train. With every combustion cycle, it opens to release exhaust gases and closes again to preserve compression. Built to endure extreme heat, pressure, and constant motion, it plays a vital role in maintaining engine performance, efficiency, and emissions control.
Over time, exhaust valves can wear or deform due to heat, carbon deposits, or mechanical stress. When they no longer seal properly, exhaust pressure can leak past the valve seat, reducing compression, power, and efficiency. In severe cases, a failing exhaust valve can lead to misfires, rough running, or damage to the cylinder head.
You should consider replacing the exhaust valve if any of the following occur:
• Loss of engine power, especially at higher RPMs
• Rough idle or misfires
• Exhaust smoke or unusual noise from the cylinder head
• Compression test reveals a weak cylinder
• When rebuilding or overhauling the engine or cylinder head
• After excessive heat exposure or in engines with high mileage
Replacing the valve ensures precise fit, proper sealing, and long-term durability — critical for restoring engine performance and preventing further damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010541951
The product you are viewing cross references to these numbers