HOLIDAY ALERT

We will be closing at 12 PM EST on Friday, April 18th, in observance of Good Friday and Easter.
Any orders placed after this time will be processed on Monday, April 21st.
Have a happy Easter weekend!

Weather Closure Alert

Due to severe weather, our White House, Tennesee location will be closed Wednesday the 19th.

All shipments from this location will resume on Thursday the 20th. Thank you for your patience!

WE WANT TO HEAR FROM YOU!

We strive to make improvements that make it easier to serve your boating needs.
We’d like to know more about you and how we can do the best job possible for you.
Please take the time to complete this brief 3-5 minute survey to help us serve you better.

FREE Ground Shipping on Orders over $100!  Exceptions apply - see details.

Toggle Nav
  • Sign In
  • Create an Account
My Cart
Search
Menu
Account
Settings
Tune Up Kits

Tune Up Kits

10 Items

Set Descending Direction
View as List Grid
  1. Small Image
    Mercruiser 7.4 liter Thunderbolt Tune Up Kit | MMD Powerline M74TBOLT
    MMD-M74TBOLT
    Qty In Stock: 41
    Brand: MMD Powerline

    Comprehensive kit includes the items needed to tune-up Mercruiser 7.4L GM engines with Thunderbolt ignition system.

    Learn More
    MSRP: $175.62 $156.16
    Add to Wishlist
  2. MMD Powerline M30LXDELCOEST Mercruiser 3.0 Liter Delco EST Tune-Up Kit
    Mercruiser 3.0 Liter Delco EST Tune-Up Kit | MMD Powerline M30LXDELCOEST
    MMD-M30LXDELCOEST
    Qty In Stock: 94
    Brand: MMD Powerline

    Comprehensive kit includes the items needed to tune-up Mercruiser 3.0 liter engines with the Delco EST ignition system.

    Learn More
    MSRP: $113.35 $92.75
    Add to Wishlist
  3. Small Image
    Mercruiser SB GM V8 Delco EST Pre-Vortec Tune Up Kit | MMD Powerline M57DELCO
    MMD-M57DELCO
    Qty In Stock: 5
    Brand: MMD Powerline

    Comprehensive kit includes the items needed to tune-up Pre Vortec Mercruiser Small Block V8 GM engines with Delco EST ignition system.

    Learn More
    MSRP: $156.52 $142.29
    Add to Wishlist
  4. tune-up kit for Mercruiser w/Thunderbolt ignition
    Mercruiser 4.3 Liter Thunderbolt Tune-Up Kit | MMD Powerline M43TBOLT
    MMD-M43TBOLT
    Qty In Stock: 92
    Brand: MMD Powerline

    Comprehensive kit includes the items needed to tune-up a Mercruiser 4.3 liter engines with a Thunderbolt ignition system.

    Learn More
    MSRP: $147.07 $120.33
    Add to Wishlist
  5. Small Image
    Mercruiser SB GM V8 Thunderbolt Pre-Vortec Tune-Up Kit | MMD Powerline M57TBOLT
    MMD-M57TBOLT
    Qty In Stock: 64
    Brand: MMD Powerline

    Comprehensive kit includes the items needed to tune-up Pre Vortec Mercruiser Small Block V8 GM engines with Thunderbolt ignition system.

    Learn More
    MSRP: $176.86 $144.71
    Add to Wishlist
  6. Small Image
    Mercruiser 7.4L & 8.2L Delco EST Tune Up Kit | MMD Powerline M74DELCO
    MMD-M74DELCO
    Qty In Stock: 20
    Brand: MMD Powerline

    Comprehensive kit includes the items needed to tune-up Mercruiser 7.4L and 8.2L GM engines with Delco EST ignition system.

    Learn More
    MSRP: $181.53 $165.03
    Add to Wishlist
  7. Mercruiser 4.3Liter Thunderbolt Vortec Tune-Up Kit MMD M43TBOLTGEN
    MerCruiser 4.3L Vortec Thunderbolt Tune Up Kit | MMD Powerline M43TBOLTGEN
    MMD-M43TBOLTGEN
    Qty In Stock: 49
    Brand: MMD Powerline

    Comprehensive kit includes the items needed to tune-up Gen+ Vortec Mercruiser 4.3 liter engines with Thunderbolt ignition system.

    Learn More
    MSRP: $147.07 $120.33
    Add to Wishlist
  8. MMD Powerline M43DELCO Mercruiser 4.3 Liter Delco EST Tune Up Kit
    Mercruiser 4.3 Liter Delco EST Tune Up Kit | MMD Powerline M43DELCO
    MMD-M43DELCO
    Qty In Stock: 43
    Brand: MMD Powerline

    Comprehensive kit includes everything needed to tune-up a Mercruiser 4.3L engines with Delco EST electronic distributor.

    Learn More
    MSRP: $148.42 $134.92
    Add to Wishlist
  9. Large Image
    Mercruiser SB GM V8 Vortec Thunderbolt Tune-Up Kit | MMD Powerline M57TBOLTGEN
    MMD-M57TBOLTGEN
    Qty In Stock: 21
    Brand: MMD Powerline

    Comprehensive kit includes the items needed to tune-up Gen+ Vortec Mercruiser small block GM V8 engines with Thunderbolt ignition system.

    Learn More
    MSRP: $188.52 $154.24
    Add to Wishlist
  10. Vortec Merc 5.7L Engine Delco EST Tune-Up Kit 1996 & Up
    Mercruiser SB GM V8 Delco EST Tune Up Kit | MMD Powerline M57DELCOGEN
    MMD-M57DELCOGEN
    Qty In Stock: 14
    Brand: MMD Powerline

    Comprehensive kit includes everything needed to tune-up Vortec Mercruiser Small Block GM V8 Gen+  engines with Delco EST electronic distributors.

    Learn More
    MSRP: $168.44 $153.13
    Add to Wishlist

10 Items

Set Descending Direction
View as List Grid
My Wish List
Last Added Items
  1. Add to Cart
    Remove This Item
Go to Wish List
You have no items in your wish list.
© 2025 Marine Parts Source. All Rights Reserved.