Conical Spring Kit - Set Of 24

Supertech

T#: 21604309 | Part#: SPRKFE20N54BE2

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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$965.99

Lifetime Replacement

Availability:

Available from Supplier

Est. Ship Date:

Ships on Jun 19, 2026

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Product Details

Supertech has the high performance valvetrain components you need to take your build to the next level.

Can be used with factory valve stem seals and keepers.

InnSpr.OD: 21mm
InnSpr.ID: 14.2mm
Seat Pressure: 88 @ 36.5
Open Pressure: 160 @ 10
Max Lift: 12mm
Coil Bind: 23.2mm
Rate: 7.25
Kit spring: SPR-FE20BE-2
Kit spring qty: 24
Retainer: RET-BMN54-TI (5mm) / RET-BMN54-TE (6mm)
OutSpr.OD: 24.4mm
OutSpr.ID: 17.6mm
Retainer qty: 24

Prop 65 Warning

Cross Reference

SPRK-FE20N54-BE2

Product Q&A

Lifetime Replacement

This Product Is Covered By Our Lifetime Replacement Program

Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.

If you have any questions, would like to learn more or are ready to place a replacement claim, click here!

Fits These Cars

MAKE	MODEL	SUBMODEL	ENGINE	Special Fitment Notes
BMW	All	All	N54 3.0L	Use vehicle selector to confirm fitment
BMW	All	All	N55 3.0L	Use vehicle selector to confirm fitment
BMW	All	All	S55 3.0L	Use vehicle selector to confirm fitment

*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.