Parts Now Pay Later with
Log In Cart
Log In
Create An Account
Log In Cart
Your Cart Is Empty
Cart Total
Edit Your Cart Checkout
Set Vehicle
Free Shipping Over $299.99

Free Shipping Over $299.99

Orders of $299.99 or more ship free within the continental U.S.

Shipping Policy

Supertech K20/K24/F20C/F22C Series Dual Valve Spring
Part Number: SPR-H1021D

Supertech K20/K24/F20C/F22C Series Dual Valve Spring-A1
Supertech K20/K24/F20C/F22C Series Dual Valve Spring-A2
Images may be for reference only

Supertech K20/K24/F20C/F22C Series Dual Valve Spring
Part Number: SPR-H1021D

Be the first to review!
Price: $15.92
$12.74
Save: $3.18 (20%)

Reward Points

It pays to shop with K Series Parts and our reward points program! For every $1.00 you spend you earn reward points.

They are easy to earn, just log in to your account when you check out. If you don't have one it is free and easy to setup.

They are easy to use during check out. Click on the "Have Reward Points?" on the shipping and payment selection page.

Reward Point Program Details

You earn 2 points for every $1.00 that you spend.

100 points equal a $1.00 discount.

Maximum discount per order is 5% of the order total.

There is no minimum order total to redeem points.

Points do not apply to shipping or sales tax.

Points are not redeemable for cash.

The point value per dollar, points earned per purchase, and order minimum are subject to change.

Earn 25 reward points. Learn More

Quantity 1 equals 1 valve spring

special order
Please contact us for estimated delivery
Monday-Friday: 10am-4pm MST

Product Details

Brand: Supertech
Part Number: SPR-H1021D
Valve Spring Open Pressure: 253 lbs
Valve Spring Seat Pressure: 92 lbs
Supertech K-Series Dual Valve Spring
  • Seated Pressure: 92 lbs at 40.40mm
  • Open Pressure: 253 lbs at 12mm
  • Coil Bind: 22.7mm
  • Rate: 13.2mm
  • Outer Spring 30mm OD / 21.8mm ID
  • Inner Spring 21.3mm OD / 15.5mm ID
  • Made with premium Superclean Chrome Silicon Vanadium Steel Alloy
  • Computer designed to ensure that wire stress levels do not overpass the limits for long durability
  • Works in K20A2, K20A3, K24A2, K24Z3, K20Z1, F20C1, F22C1, K20C2, K20Z3 Engines
Sold as a single valve spring

WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.

Vehicle Fitment

Acura RSX
2002 Acura RSX Type-S 2003 Acura RSX Type-S 2004 Acura RSX Type-S

Reviews ★★★★★ ★★★★★

No Reviews Yet!

Write a Review

Also Bought

Supertech K20A2/K20Z/K24A Titanium Retainers
$201.64
Supertech K20A2/K20Z/K24A Titanium Retainers
Skunk2 K Series Alpha Series Valve Set (Stock Size / High Compression)
$249.99
Skunk2 K Series Alpha Series Valve Set (Stock Size / High Compression)
Honda K-Series Camshaft Alignment Tool
$17.80
Honda K-Series Camshaft Alignment Tool
Honda K20 Timing Chain
$134.82
Honda K20 Timing Chain
Honda K20A2/Z1/Z3 / K24A2 K-Series Timing Chain Tensioner
$122.46
Honda K20A2/Z1/Z3 / K24A2 K-Series Timing Chain Tensioner
ARP 02-06 RSX / 02-05 Civic Si K20A2/A3 Head Stud Kit
$173.42
ARP 02-06 RSX / 02-05 Civic Si K20A2/A3 Head Stud Kit
Honda K24 Timing Chain
$145.58
Honda K24 Timing Chain
Mishimoto 06-11 Civic Si Racing Thermostat
$74.95
Mishimoto 06-11 Civic Si Racing Thermostat
Red Line Assembly Lube 4oz.
$8.75
Red Line Assembly Lube 4oz.
K-Tuned V2 Black K24 Oil Dipstick
$80.99
K-Tuned V2 Black K24 Oil Dipstick
Cometic K-Series 87mm Head Gasket
$87.55
Cometic K-Series 87mm Head Gasket
Drag Cartel K-Series 2.2 Endurance Camshafts
$953.64
Drag Cartel K-Series 2.2 Endurance Camshafts

Free Shipping

K Series Parts offers free shipping for the majority of items that we sell that are shipped inside the continental United States.

Free shipping is done by the most cost effective shipping method for each order and delivery can takes 3 to 5 days on average.

Faster express shipping is available for an additional charge and calculated at checkout or on the edit basket page.

Certain products are not included in the free shipping, shipped via truck freight, or fulfilled by an outside supplier.

Alaska, Hawaii, and international orders are charged shipping and it is calculated by the website at checkout or on the edit basket page.

Instant Discount

Add this item to your cart to get an instant discount!

Not Available for Pickup

This item is not currently available for pick-up in our retail showroom and will be shipped directly to you.

K Series Parts
1630 E 66th Ave
Denver, CO 80229