Ferrea BMW S42/M42/M50/S50/M52/M54 Double Spring 7 Deg Pro CNC Titanium Retainer - Set of 12

Ferrea BMW S42/M42/M50/S50/M52/M54 Double Spring 7 Deg Pro CNC Titanium Retainer - Set of 12

Marsoni

M251S

$142.72

Get it in 3 business days with 1 day shipping. Friday, May 29

Ferrea BMW S42/M42/M50/S50/M52/M54 Double Spring 7 Deg Pro CNC Titanium Retainer - Set of 12SKU: E11025 Ferrea BMW S42 M42 M50 S50 M52 M54 Double Spring 7 Deg Pro CNC Titanium Retainer Set of 12 (1992 2006) Ferrea E11025 titanium retainers upgrade valve trains in BMW S42 M42 M50 S50 M52 M54 engines powering E36 E39 E46 Z3 Z4 models from 1992 to 2006. These 7 degree Pro CNC components secure double valve springs at minimal weight for smoother high RPM operation and greater durability. Engine builders select this set of 12 for dependable

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I only used it once, I don’t know how the other 3 keys are supplied to work because I did not see any counting bit it work perfectly. It was super easy, my only issue is that I had to download the driver and restart the pc to make everything work out but the process itself is pretty easy. The printer work like new and the installation was easy too.

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Reviewed in the United States on March 25, 2026

Verified Purchase

Amazon Customer

Louisville, US

★★★★★ 5

Fits perfectly in the Epson ET-2720 and reset software worked!

The waste ink pad replacement fit perfectly in the Epson ET-2720 and looked to be identical to the original that needed replacing. The reset software they provide also worked without any issue.

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Reviewed in the United States on May 3, 2026

Verified Purchase

joseph g pope

Lake Worth, US

★★★★★ 1

Not everything included

It says it comes with program to reset the printer an all the information that came with the tanks takes you to sites that want you to buy the key to unlock. These were purchased with the idea everything you needed came with it.

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Reviewed in the United States on November 9, 2025

Verified Purchase

jody52770

Grantham, US

★★★★★ 5

Good must have product.

Good product, easy to install. A must have for Epson tank printer's. If you do the deep clean and over fill the head cleaning reservoir. Your your printer I'm set off a code that it is full and becomes trash cannot be reset.

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Reviewed in the United States on February 19, 2026