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APR Valve Spring and Retainer Kits
Valve Springs, Retainer, Single Spring, Titanium Retainer, Seal, Audi, Bentley, Lamborghini, Porsche, Volkswagen, Kit
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Estimated Ship Date: Oct 30, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
MS100258
Part Type:
Product Line:
Summit Racing Part Number:
AXR-MS100258
UPC:
810009935315
Valve Spring Style:
Beehive
Number of Springs Per Valve:
Single
Retainers Included:
Yes
Retainer Material:
Titanium
Damper Spring Included:
No
Locks Included:
No
Valve Stem Seals Included:
Yes
Valve Springs Coated:
No
Remanufactured:
No
Quantity:
Sold as a kit.
Notes:
Kit includes 1 valve spring, 1 valve spring retainer, and 1 valve spring seat. Fits with original valves.
Application Notes:
Kit includes 1 valve spring, 1 valve spring retainer, and 1 valve spring seat. Fits with original valves.
APR Valve Spring and Retainer Kits
Proven to eliminate the OEM valvetrain's weakest link, APR valve spring and retainer kits are high performance, lightweight upgrades that increase valve control and eradicate valve float, common on many applications. The advanced design of these valve spring, retainer, and spring seat combinations are 28 percent lighter yet 20 percent stiffer and will not overpower and snap the OEM valves or erode the aluminum spring seat.
Features:
* Increase valvetrain control
* Supports higher revving applications
* Weight saving beehive spring design
* ASTM A877A OTSC round wire steel springs
* 6AL4V American titanium retainers
* 4140 heat-treated chromoly steel spring seats with black oxide coating
* 29 grams per spring
* 2 grams per retainer
* Compatible with OEM valves
* Spring seats protect against aluminum erosion in the head
Applications
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