Stocking up on spare fuses

Stocking up on spare fuses

This is a discussion on Stocking up on spare fuses within the RAM 1500 Diesel Electrical forums, part of the RAM 1500 Diesel Garage - RAM 1500 Diesel Mechanics Corner category; I bought a bunch of fuses to stuff in the blank spaces on my truck, my brother's 2016 ED, and my dad's 2016 Cummins. You ...

Results 1 to 9 of 9
Like Tree6Likes
  • 5 Post By DJL_57
  • 1 Post By Kazimodo

Thread: Stocking up on spare fuses

  1. #1
    RAM Guru DJL_57's Avatar
    Join Date
    Jan 2016
    Location
    Fresno, CA
    Posts
    1,022
    Member #
    7729
    Vehicle
    15 Tradesman QC 4x4 3.92
    Liked
    505 times

    Stocking up on spare fuses

    I bought a bunch of fuses to stuff in the blank spaces on my truck, my brother's 2016 ED, and my dad's 2016 Cummins.
    You need five different types of fuses for this truck - wow.
    I did not want to cheap out and buy knockoff fuses online. Sorry, but I don't trust them. So I aimed to stay with good quality like Littelfuse or Cooper/Bussman, and succeeded.
    A bunch of web links integrated below - if you need help identifying the fuses.

    I counted all the fuses in all three trucks and determined what I needed to buy to stuff as many spares as possible in all the "blanks" in the fuse banks.
    Bought all of my stuff from The Electrical Depot and Amazon.

    Battery positive terminal block - ZCASE fuses. 100, 125, 250 amp ratings for the two 1500 trucks.


    The 2500 truck with two batteries used 2x 250A and one marked "SHUNT." No need to carry a spare shunt, so his truck was easier just needed a single spare 250A.



    Glow plug/PTC heater relay bank (1500 only) - JCASE fuses (FMX). 3x 50A and 1x 60A

    AUX upfitters bank (2500 only) - same as above. 3x 20A, 2x 25A, 2x 40A.


    Main fuse bank - 3 types (all trucks):

    F03-F15 - JCASE Low Profile fuses (FMX-LP). All three trucks uses 20A, 30A, and 40A ratings, but the 2500 truck also used a 60A. The 1500 trucks had 3 spare slots (perfect for 1ea of the needed ratings), the 2500 only had 2 spare slots.

    F16-F39 - MCASE fuses (FMM). These are "slow-blow" fuses to tolerate a bit more inrush current - things like trailer lights, etc. The Littelfuse ones look different than what's in the truck. All three trucks used varying quantities of the 20A and 30A ratings. The 1500 trucks had 8 spare slots, the 2500 had 5 spare slots to fill.

    F40-F104 - MICRO2 fuses (ATR). These are fast-blow fuses. 5A, 10A, 15A, 20A, 25A, 30A ratings. My truck had 15 spare slots, my brother's had 17, and the 2500 had 21 slots. Go figure.

    I purchased the ZCASE fuses from The Electrical Depot for $5.89 each. Even with shipping (including other stuff in the shipment), that was better than anywhere else. And the 100A was impossible to find. I sent them a web request asking if they had access to the 100A. He called me first thing the next morning to ask me how many I wanted, he would have them set up on the website shortly and could ship them separately for free if I needed stuff in a hurry. He emailed me about 2hrs later telling me the website was set up for the 100A and had them on order. Top notch service. They are definitely a good source for lots of oddball items like this. Total ordered: 2x 100A, 2x 125A, 3x 250A.

    I was going to need 2x 50A and 2x 60A of the FMX fuses for the 1500 glow plug bank, plus more for the 2500 aux switches. And for the FMX-LP, I was going to need 3x 20A, 3x 30A, 3x 40A, and 1x 60A. It was going to get pricey buying them individually. I found this kit on amazon and confirmed they were genuine Littelfuse produce. It was cheaper to buy this bulk kit and have way more extras.

    I bought the FMM fuses from The Electrical Depot. 10x 20A and 15x 30A.

    I had already purchased each of my family members one of these kits. Good for a replacement of 1ea the necessary sizes plus an extra 7.5A (not used in our trucks). I stocked up on extra 10A, 15A, 20A, and 25A from The Electrical Depot to fill in a bunch of blanks in the fuse block according to how many were in the banks (no sense in carrying 3ea of everything when the truck only uses 1x 30A but 25x 10A).

    I identified ALL the blanks in my fuse bank first. Just a metallic silver Sharpie marker, shows up nicely:


    Then I filled it all in with my spare fuses.


    Ended up with the ZCASE and FMX fuses in a little bag and it lives under the lid now.
    Last edited by DJL_57; 03-26-2019 at 01:24 PM. Reason: added photos via tapatalk
    2015 RAM 1500 3.0L EcoDiesel/8HP70 4x4. QC 6'4' 140" WB. Factory options: Protection Group, Exterior Appearance Group, Trailer Tow Mirror and Brake Control Group, Popular Equipment Group, 3.92, Anti-Spin, UConnect 5.0, ParkView
    List of mods - DJL_57'S RAM

  2. #2
    RAM Guru Ram1's Avatar
    Join Date
    Aug 2016
    Location
    Adirondacks
    Posts
    1,161
    Member #
    11106
    Vehicle
    2015 ED Laramie, 355 Diff ,ARE Cap, pull me over first Red
    Liked
    547 times
    Awesome wright up!! All of the info I was looking for.
    Do not rule out working with your hands, but it does not preclude using your head.

  3. #3
    RAM Professional John Jensen's Avatar
    Join Date
    Mar 2016
    Location
    San Diego County
    Posts
    541
    Member #
    8400
    Vehicle
    2016 Ram 1500 Crew Cab 4x4 Ecodiesel
    Liked
    379 times
    DJL,
    A great post of needed information. Very complete, good research and even where to purchase data. Well done!

    Edit:
    One of the reviews on the assortment you bought on Amazon said the fuses were the wrong size for his Ram. Is he comparing the wrong fuse or ?? Looks to me he's comparing a J Case to an FFM.
    Here is the review
    https://www.amazon.com/gp/customer-r...SIN=B073XV628Q
    Last edited by John Jensen; 03-26-2019 at 10:14 AM.
    *****-------------------------- I hate "politically correct" --- Tell it like it is --- Be truthful --------------------------*****

    2016, Ram 1500 Big Horn, Crew Cab, 4x4, EcoDiesel, 3.55 Axle, Leer 100XR Shell on 5.7 bed
    2006, Ford F350 Lariat, Crew Cab, 4x4, 6.0 Diesel, 3.73 Axle, Leer 180 Shell on 8' bed
    2005, Jeep Wrangler Rubicon, 4x4, 4.0 Inline 6, Rock Crawler

    Dealer of ARCHOIL and PRI-D & PRI-G oil & fuel additive products

  4. Remove Advertisements
    Ram1500Diesel.com
    Advertisements
     

  5. #4
    RAM Guru DJL_57's Avatar
    Join Date
    Jan 2016
    Location
    Fresno, CA
    Posts
    1,022
    Member #
    7729
    Vehicle
    15 Tradesman QC 4x4 3.92
    Liked
    505 times
    Quote Originally Posted by Kazimodo View Post
    Daniel , nice write-up
    ..
    little correction on 5th image ==> F2 60A = glow plugs ,,,, Only the yellow one is glow plug related
    ..
    the 3 others ( F1 F3 F4 all 50A ) , Red ones and relays are for the heater 's 3 elements ( PTC in the HVAC) .
    ..
    (as described in the cover , and in a few threads about the heaters )
    the text above image says all 4 for glow plugs , and again a little further down .
    ..
    .......if the correction is made in first post , I will delete this post ........
    ..
    PTC heaters explained by GDE in here : https://www.ram1500diesel.com/forum/...m-up-tips.html
    Thanks I will change. I wasn't sure that PTC was - thought it meant Power Train Control, such as the thermal unit on the transmission, etc.

    Sent from my SM-G892A using Tapatalk
    2015 RAM 1500 3.0L EcoDiesel/8HP70 4x4. QC 6'4' 140" WB. Factory options: Protection Group, Exterior Appearance Group, Trailer Tow Mirror and Brake Control Group, Popular Equipment Group, 3.92, Anti-Spin, UConnect 5.0, ParkView
    List of mods - DJL_57'S RAM

  6. #5
    RAM Guru DJL_57's Avatar
    Join Date
    Jan 2016
    Location
    Fresno, CA
    Posts
    1,022
    Member #
    7729
    Vehicle
    15 Tradesman QC 4x4 3.92
    Liked
    505 times
    Quote Originally Posted by John Jensen View Post
    DJL,
    A great post of needed information. Very complete, good research and even where to purchase data. Well done!

    Edit:
    One of the reviews on the assortment you bought on Amazon said the fuses were the wrong size for his Ram. Is he comparing the wrong fuse or ?? Looks to me he's comparing a J Case to an FFM.
    Here is the review
    https://www.amazon.com/gp/customer-r...SIN=B073XV628Q
    I read that too. That's exactly his issue. The guy left a one-star review because he didn't do his research. Those kind of reviews bug me...

    Sent from my SM-G892A using Tapatalk
    2015 RAM 1500 3.0L EcoDiesel/8HP70 4x4. QC 6'4' 140" WB. Factory options: Protection Group, Exterior Appearance Group, Trailer Tow Mirror and Brake Control Group, Popular Equipment Group, 3.92, Anti-Spin, UConnect 5.0, ParkView
    List of mods - DJL_57'S RAM

  7. #6
    RAM Bronze Member Kazimodo's Avatar
    Join Date
    Oct 2015
    Location
    Montreal Quebec Canada
    Posts
    2,806
    Member #
    6985
    Vehicle
    2015 Big Horn CC 5.7' 3.55
    Liked
    1331 times
    Good stuff Daniel
    Yellow 60A for glow plugs ,
    PTC elements have a fuse , and a relay , associated to each of the 3 elements.
    Attached Thumbnails Attached Thumbnails Stocking up on spare fuses-les-relais-et-fuses-pour-elements.jpg  
    DJL_57 likes this.

  8. #7
    RAM Guru DJL_57's Avatar
    Join Date
    Jan 2016
    Location
    Fresno, CA
    Posts
    1,022
    Member #
    7729
    Vehicle
    15 Tradesman QC 4x4 3.92
    Liked
    505 times
    One more pic I took that I forgot to post. Here was a quick shot of all the spares I added in my truck.

    Sent from my SM-G892A using Tapatalk
    2015 RAM 1500 3.0L EcoDiesel/8HP70 4x4. QC 6'4' 140" WB. Factory options: Protection Group, Exterior Appearance Group, Trailer Tow Mirror and Brake Control Group, Popular Equipment Group, 3.92, Anti-Spin, UConnect 5.0, ParkView
    List of mods - DJL_57'S RAM

  9. #8
    RAM Rookie flanneryd's Avatar
    Join Date
    Jul 2019
    Posts
    1
    Member #
    41214
    Thanks for your excellent post. It really helped me sort out the different types of fuses in my truck (2017 RAM 3500 6.7L Cummins), and what they look like.

    Does anyone have a suggestion for removing the MCASE fuses? The plastic fuse puller that came with the truck does not fit these (although it does remove the other fuse types). I purchased a green plastic "Tri Puller" from Littelfuse, and that does not work. Also tried needle nose pliers and they cannot get enough of a grip - plus I'm afraid of cracking the case, by squeezing too hard.

    I appreciate any suggestions - especially if someone knows of a specialized tool.

  10. #9
    RAM Bronze Member Kazimodo's Avatar
    Join Date
    Oct 2015
    Location
    Montreal Quebec Canada
    Posts
    2,806
    Member #
    6985
    Vehicle
    2015 Big Horn CC 5.7' 3.55
    Liked
    1331 times
    welcome to the site flanneryd , the tool looks like this , and a link .
    ..
    https://www.imperialsupplies.com/item/0752750
    Attached Thumbnails Attached Thumbnails Stocking up on spare fuses-75275.jpg  

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. NOT your fathers fuses anymore!
    By Ram1 in forum RAM 1500 Diesel General Discussion
    Replies: 16
    Last Post: 03-26-2019, 10:40 AM
  2. Missing Radiator Fan Fuses/Relays
    By Eddnyster in forum RAM 1500 Diesel Electrical
    Replies: 3
    Last Post: 03-18-2019, 02:46 PM
  3. Stocking Stuffers at RockAuto.com
    By RockAuto in forum RockAuto
    Replies: 0
    Last Post: 11-27-2018, 09:39 AM
  4. Micro fuses
    By gleb in forum RAM 1500 Diesel Electrical
    Replies: 9
    Last Post: 09-19-2014, 11:15 PM
  5. Mismatched tire/ spare tire carrier
    By Biglakerider in forum RAM 1500 Diesel General Discussion
    Replies: 38
    Last Post: 08-29-2014, 10:50 AM

Search tags for this page

2016 ram 1500 fuse type

Click on a term to search for related topics.