My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Supertech Performance SPRK-H1000D-BM Valve Spring Retainer Kit Dual Springs - 24pc

(BMW X5 2001-06, 328i 1996-2000, M3 1994-99, X3 2004-06, Z4 2003-05, Z3 1996-2002, 325i 1992-95, 2001-05, 330i 2001-05, 528i 1997-2000 + 17 more models)

Manufacturer

Picture for manufacturer Supertech Performance

Part Number

SPRK-H1000D-BM
12 reviews
Sale Price

$809.72

2 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Supertech Performance SPRK-H1000D-BM is a complete 24-valve valve spring and retainer kit designed for high-performance engine builds. This comprehensive kit includes dual valve springs, precision-machined retainers, and valve seats—everything needed for a complete valvetrain upgrade.

Kit Includes:

  • 24 Dual Valve Springs (SPR-H1000D/BM) - High-performance beehive or conical dual spring design
  • 24 Titanium Retainers (RET-K20A/T2) - Lightweight construction reduces valvetrain mass
  • 24 Valve Seats (SEAT-BM50) - Precision-matched for optimal sealing

Key Features:

  • Precision-matched components ensure proper valvetrain geometry and performance
  • Dual spring design provides increased valve control at high RPM
  • Engineered for aggressive camshaft profiles and high-lift applications
  • Quality construction with strict tolerance control for reliability
  • Complete kit simplifies ordering and ensures component compatibility

Supertech valve spring kits are developed for performance enthusiasts demanding the highest quality valvetrain components. Each kit is designed to handle the increased demands of modified engines, providing excellent valve control, reduced float, and improved high-RPM stability. Ideal for racing applications, forced induction builds, and high-performance naturally aspirated engines.

Products specifications

Fits

BMW X5 2001-06, 328i 1996-2000, M3 1994-99, X3 2004-06, Z4 2003-05, Z3 1996-2002, 325i 1992-95, 2001-05, 330i 2001-05, 528i 1997-2000, 330Ci 2001-06, 530i 2001-05, 320i 2001-05, 325Ci 2001-06, 325xi 2001-05, 525i 1989-95, 2001-05 + 11 more models

Seat Press

84lbs @ 35.70mm

The tailgate liner I received for my 2001 Toyota Tacoma was shipped fast and received in perfect condition. It fit my tailgate perfectly and covered the top rail. In fact it exactly matched the original liner that was installed in 2001 but had accidentally been damaged. I had given up trying to find a new one until I saw this one from Autoplicity.

Easy to find and use

Efficient web service, easy to order!

Fast shipping and great products.

It was easy and convenient. Got what I ordered and at a reasonable price as well

just what I ordered and quick delivery

Easy checkout through PayPal.

Order 12486. Item was simple to find and the website made it very easy to navigate. I appreciated the ability to pay with paypal and email notifications gave me confidence that everything was taken care of properly.

good price

Very nice people very considerate and helpful plus the price was nice

Easy enough until it came to payment. "Check out with Amazon, it'll be faster." It wasn't.

Very smooth ordering and processing. Great communications.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy