Mercury S-55 Engine Valve Locks

Your Mercury S-55 will be happy to know that the search for the right Engine Valve Locks you’ve been looking for is over! Advance Auto Parts has 2 different Engine Valve Locks for your vehicle, ready for shipping or in-store pick up. The best part is, our Mercury S-55 Engine Valve Locks start from as little as $0.30.

When it comes to your Mercury S-55, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Engine Valve Locks brands so you can shop with complete confidence. Some of our top Engine Valve Locks brands are Competition Cams and Sealed Power. We’re sure you will get the right product to keep that S-55 running for a long time.

Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Engine Valve Locks for your S-55, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!

Compare 3 Mercury Engine Valve Locks

Sealed Power – Engine Valve Spring Retainer Keeper (Part No.VK-115)

Engine Valve Spring Retainer Keeper

from

$0.43
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Competition Cams – SUPER VALVE LOCKS, 3/8" 1 ST (Part No.612-16)

SUPER VALVE LOCKS, 3/8" 1 ST

from

$553.99
Inside tang-to-taper relationship held tightly for repeatable valve spring installed heights

Product Features:
  • For simplicity, any Super Lock fits any COMP Cams 10° retainer – just choose the correct lock for you valve size and application
  • Super Locks are recommended in all race applications
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Sealed Power – Engine Valve Spring Retainer Keeper (Part No.VK-138)

Engine Valve Spring Retainer Keeper

from

$0.30
Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

FAQs for Mercury S-55 Engine Valve Locks

What are the most popular Engine Valve Locks for the Mercury S-55?

With 2 brands you can trust, our most popular Engine Valve Locks for the Mercury S-55 are:
SUPER VALVE LOCKS, 3/8" 1 ST
from $553.99
This product is not rated
SUPER VALVE LOCKS, 3/8" 1 ST
Engine Valve Locks
Engine Valve Spring Retainer Keeper
from $0.30
This product is not rated
Engine Valve Spring Retainer Keeper
Engine Valve Locks