1 set of valve spr Genuine Porsche part 99710509396

Code: 99710509396

Genuine Porsche part

1 set of valve spr

The product code 99710509396 was also found on these diagrams

103-01 - set of valve springs

cylinder head 997 GT3 / GT3 RS M97.77 2010-11 and 997 GT3 RS 4.0 M97.74 2011

1.1-07 - set,valve springs

Cylinder head 911 (991) GT3 CUP 2016

Additional information:

• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

Before purchasing thoroughly check part to confirm compatibility.

Related products

Timing chain tensioner. Right. Porsche 997 Turbo / GT3

99710506271/1

Product Information

Timing chain tensioner. Cyl. 4-6. RIGHT.
This OE Match timing chain tensioner is a direct replacement for the original Porsche component fitted to the right-hand cylinder bank (cylinders 4–6). It maintains proper tension on the engine timing chain to ensure precise camshaft timing and smooth engine operation.

Fits:
Porsche 997.1 Turbo / GT2 2007 - 2009
Porsche 997.2 Turbo / GT2 2010 - 2013
Porsche 997 GT3 2007 - 2011

Diagram ref no 10

The timing chain tensioner maintains the correct tension on the engine timing chain, ensuring accurate synchronisation between the crankshaft and camshafts. This helps the engine run smoothly, prevents chain slack, and protects against timing-related engine damage.

Function
•  Maintains correct timing chain tension
•  Prevents chain slack and timing fluctuation
•  Ensures accurate camshaft and crankshaft synchronisation
•  Reduces timing chain vibration and noise
•  Supports reliable high-performance engine operation

Position: Right side / cylinders 4–6
OE reference: 99710506271
Supersedes: 99710506270, 95910505203
Recommended gasket/seal: 99610517270 (sold separately)
Quantity required: 1 per engine side

Over time, timing chain tensioners can wear internally or lose hydraulic pressure efficiency. A failing tensioner may cause timing chain noise, inaccurate valve timing, or excessive chain movement, potentially leading to severe engine damage. Replacing a worn tensioner restores correct timing stability, protects internal engine components, and maintains performance reliability.

When to replace
•  Rattling noise from timing chain area during startup
•  Timing-related fault codes or irregular engine timing
•  During engine rebuild or timing system service
•  Excessive timing chain slack detected
•  Oil leakage around tensioner housing

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

99710506271

99710506271

99710506270

95910505203

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1 set of valve spr Genuine Porsche part 99710509396