Urgent notice about the new Napa Gold 1042 filters

We’d like to bring to everyone’s attention that Napa is no longer sourcing 1042 filters from Mann/Hummel (was Wix). The new filters that are labeled as made in China are sold by Premium Guard. Previously, these filters were made by Mann/Hummel in Mexico and were of excellent quality compared to the originals that were made in the USA.

We did not even bother cutting the Chinese one open. The end cap is very different and although there are more holes for the oil to flow through, the overall area has been reduced by 50%. This will cause a severe restriction and will cause engine damage.

The only Napa Gold filters we recommend are the ones made in the USA or Mexico. We still do have a decent supply of Mexican 1042s and we are actively seeking suitable alternatives for this filter for the future. We will not offer the Chinese Napa Gold 1042 for sale. We also do not recommend using the Napa Select or Platinum versions of the 1042 with our spin on oil filter adapters. “

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Upgrading to IMS Solution? Make sure to verify your snap ring.

If you are planning on installing a 106-08.20 IMS Solution in a Boxster or 911 996 engine with a single row intermediate shaft bearing that has been previous fitted with an aftermarket IMS bearing replacement such as the Classic Single Row IMS Retrofit (106-08.2), you will need to first verify you are using the correct circlip / snap ring to properly retain the IMS Solution bearing.

If you do not have an original Porsche circlip or snap ring, please note that the ears on the circlip / snap ring can interfere with the IMS Solution, requiring a reduced ear width of approximately 0.194" to properly clear the IMS Solution flange.

We have sourced suitable replacement circlips that are compatible with the IMS Solution and can be purchased from LN Engineering.

Buy the Replacement Single Row Circlip Snap Ring

As a reminder, if your car has was fitted with a Classic Single Row IMS Retrofit, it is well past our recommended replacement interval for the 106-08.2 bearing. If you are unsure about when you need to have your IMS Retrofit bearing replaced as part of regular scheduled maintenance, please visit the IMS Rebates website which provides this information along with how to get up to $300 back when upgrading your IMS Retrofit or qualifying competitor’s replacement intermediate shaft bearing.

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What other items do I need to replace on my Porsche other than the IMS bearing?

If you have a 97 through 08 Boxster, Cayman or 911 996 or 997 model, replacing the IMS bearing or removing the grease seal off the original IMS bearing if you have the larger non-serviceable 06-08 bearing isn’t the only thing you need to do.

You should also consider replacing the water pump and thermostat as well as the rear main seal, oil fill tube, and AOS (and associated AOS vent tubes) as part of preventative maintenance. Most Porsche mechanics recommend replacing these items every 4-6 years.

If you have a 97-02 Boxster or 99-01 996 with the 5-chain M96 engine, the variocam wear pads along with the 4^th and 5^th chains need to be replaced if your cam timing deviation is over 4 degrees. You can check your camshaft timing deviation with a Durametric.