00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Diagnostic MEFI #531-0118I 4
$1,625.00
$1,885.00
CDI 531-0118I 4 Diagnostic SoftwareMEFI 1-4 Stand Alone SystemThis product replaces:667-5310118I, 4, 531-0118INormalized SKU: 5310118I4
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Marine Engine Diagnostics System Bundle #531-0118T2
$4,185.00
$4,687.20
CDI 531-0118T2 Diagnostic SoftwareJohnson and Evinrude spark plug wires.Normalized SKU: 5310118T2UPC Code: 736983856814
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Mercury G3 Upgrade #531-0119U2
$658.35
$821.70
CDI 531-0119U2 Diagnostic SoftwareCDI MEDS Mercury G3 Upgrade #531-0119U2Normalized SKU: 5310119U2
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Mercury Software Upgrade #531-0119M
$1,275.00
CDI 531-0119M Diagnostic SoftwareM.E.D.S. is an easy-to-use, yet sophisticated software program specifically designed for troubleshooting multiple marine engines. Using M.E.D.S. you can easily collect engine data, determine active faults, run engine tests and efficiently diagnose problems. M.E.D.S. helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop. M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10.
M.E.D.S. is an easy-to-use software program specifically designed for troubleshooting multiple marine engines
Collect engine data, determine active faults, run engine tests and efficiently diagnose problems
Helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop
M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10
Compatible engine platform: Mercury (w/o G3)
C.D.I. M.E.D.S. Mercury Software Upgrade #531-0119MNormalized SKU: 5310119MUPC Code: 20251500140
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Mercury with G3 #531-0118M2
$2,750.00
CDI 531-0118M2 Diagnostic SoftwareM.E.D.S. is an easy-to-use, yet sophisticated software program specifically designed for troubleshooting multiple marine engines. Using M.E.D.S. you can easily collect engine data, determine active faults, run engine tests and efficiently diagnose problems. M.E.D.S. helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop. M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10.
M.E.D.S. is an easy-to-use software program specifically designed for troubleshooting multiple marine engines
Collect engine data, determine active faults, run engine tests and efficiently diagnose problems
Helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop
M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10
Compatible engine platform: Mercury G3
Normalized SKU: 5310118M2UPC Code: 736983860200
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Mercury Yamaha BRP #531-0118T 1
$3,375.00
$3,807.00
CDI 531-0118T 1 Diagnostic SoftwareThis product replaces:667-5310118T, 1, 531-0118TNormalized SKU: 5310118T1
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Mercury/Yamaha/BRP/Suzuki/Honda MEFI 1-4 #531-0500T
$5,375.00
CDI 531-0500T Diagnostic Software
M.E.D.S. Standard Bundle Includes Mercury, Yamaha, Johnson/Evinrude, Suzuki, Honda, MEFI 1-4Replaces: 531-0500T
CDI MEDS Mercury/Yamaha/BRP/Suzuki/Honda MEFI 1-4 #531-0500TNormalized SKU: 5310500TUPC Code: 736983860279
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Mercury/Yamaha/BRP/Suzuki/Honda MEFI Canbus #531-0500T1
$6,500.00
$7,280.00
CDI 531-0500T1 Diagnostic Software
M.E.D.S. Standard Bundle Includes Mercury, Yamaha, Johnson/Evinrude, Suzuki, Honda, MEFI 1-4
Replaces: 531-0500T
Normalized SKU: 5310500T1UPC Code: 736983860286
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Mercury/Yamaha/MEFI 1-4 #531-0200T4
$3,687.50
CDI 531-0200T4 Diagnostic SoftwareM.E.D.S. Check Report makes you money. Customizable and comprehensive engine history report. The M.E.D.S. Check Report allows you to run a full diagnostic test on your customer’s engine and present them with a comprehensive report detailing everything from the number of hours on their engine to the last time they did an oil change. You can upload your company logo to M.E.D.S. and have it appear in the upper left hand corner of your M.E.D.S. Check Report. Works on Microsoft PC Laptops, Windows Tablets and Microsoft’s Surface Tablets. With M.E.D.S. you are not bound to a small, expensive to replace, handheld device. Our software works on any PC laptop running Windows 10 Operating System. Recommended Computer System Requirements: Windows 10 Operating System / Intel I5 Dual Core processor @2.5 Ghz or greaterRecommended I7 Quad Core @ 2.5 Ghz or greater / USB 2.0 or USB 3.0 Port / 10 GByte of Free Hard Disk Space, Recommended 50 GBytes or greater / 2 GByte of RAM, Recommended 6 GBytes or greater / Tablets running Windows 10 with a USB port (Note: Windows 8 RT will not work with M.E.D.S.). Processor must be I5 Dual Core @ 2.5 Ghz or better / Screen Resolution of 1360×768 or higher. For best results, the Windows display DPI resolution should be configured at standard 96 DPI or higher. Some controls may not be visible or look distorted at nonstandard DPI settings.
Customizable and comprehensive engine history report
Run a full diagnostic test on your customer’s engine
Create a comprehensive report detailing everything from the number of hours on the engine to the last time the oil was changed
Portable, simple-to-use interface
Normalized SKU: 5310200T4UPC Code: 736983861382
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Package Mercury Yamaha BRP #531-0200T1
$3,687.50
CDI 531-0200T1 Diagnostic Software
M.E.D.S. Basic Bundle Includes Mercury, Yamaha, Johnson/EvinrudeReplaces: 531-0200T1
CDI MEDS Package Mercury Yamaha BRP #531-0200T1Normalized SKU: 5310200T1UPC Code: 736983860248
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Package Pro Bundle #531-0500T3
$6,500.00
CDI 531-0500T3 Diagnostic SoftwareM.E.D.S. is an easy-to-use, yet sophisticated software program specifically designed for troubleshooting multiple marine engines. Using M.E.D.S. you can easily collect engine data, determine active faults, run engine tests and efficiently diagnose problems. M.E.D.S. helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop. M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10.
M.E.D.S. is an easy-to-use software program specifically designed for troubleshooting multiple marine engines
Collect engine data, determine active faults, run engine tests and efficiently diagnose problems
Helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop
M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10
Compatible engine platform: Mercury (w/o G3)
Normalized SKU: 5310500T3UPC Code: 736983860958
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Software Upgrade #5310119UY
$618.75
$655.70
CDI 5310119UY Diagnostic SoftwareCDI MEDS Software Upgrade #5310119UYNormalized SKU: 5310119UYUPC Code: 736983861450
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Suzuki Platform #531-0118S
$1,625.00
CDI 531-0118S Diagnostic SoftwareM.E.D.S. is an easy-to-use, yet sophisticated software program specifically designed for troubleshooting multiple marine engines. Using M.E.D.S. you can easily collect engine data, determine active faults, run engine tests and efficiently diagnose problems. M.E.D.S. helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop. M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10.
M.E.D.S. is an easy-to-use software program specifically designed for troubleshooting multiple marine engines
Collect engine data, determine active faults, run engine tests and efficiently diagnose problems
Helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop
M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10
Compatible engine platform: Suzuki
Normalized SKU: 5310118SUPC Code: 20251500020
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Upgrade #531-0119UY
$618.75
CDI 531-0119UY Diagnostic SoftwareThe Yamaha M.E.D.S. update is software only. Current M.E.D.S. Owners of the Yamaha platform will need to purchase Part Number 531-0119UY. If you currently have M.E.D.S. but do not have Yamaha, please purchase Part Number 531-0119Y. All add-ons to your current M.E.D.S. will include the Yamaha update as part of your purchase at no additional cost. (i.e., 531-0119M2, 531-0119I4, 531-0119S, etc.
Digital Download
M.E.D.S. Update for Yamaha
Software Only - Cable not included
M.E.D.S. Yamaha cable required
Normalized SKU: 5310119UY
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Upgrade 531-0119B
$850.00
CDI 531-0119B Diagnostic SoftwareM.E.D.S. is an easy-to-use, yet sophisticated software program specifically designed for troubleshooting multiple marine engines. Using M.E.D.S. you can easily collect engine data, determine active faults, run engine tests and efficiently diagnose problems. M.E.D.S. helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop. M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10.
M.E.D.S. is an easy-to-use software program specifically designed for troubleshooting multiple marine engines
Collect engine data, determine active faults, run engine tests and efficiently diagnose problems
Helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop
M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10
Compatible engine platform: BRP
Normalized SKU: 5310119BUPC Code: 20251500400
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Upgrade Mercury with G3 Upgrade #531-0119M2
$870.40
$1,054.00
CDI 531-0119M2 Diagnostic SoftwareM.E.D.S. is an easy-to-use, yet sophisticated software program specifically designed for troubleshooting multiple marine engines. Using M.E.D.S. you can easily collect engine data, determine active faults, run engine tests and efficiently diagnose problems. M.E.D.S. helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop. M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10.
M.E.D.S. is an easy-to-use software program specifically designed for troubleshooting multiple marine engines
Collect engine data, determine active faults, run engine tests and efficiently diagnose problems
Helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop
M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10
Compatible engine platform: Mercury (Including G3)
Normalized SKU: 5310119M2UPC Code: 736983860217
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Upgrade to MEFI #531-0119I 4
$850.00
$1,013.47
CDI 531-0119I 4 Diagnostic SoftwareCDI MEDS Upgrade to MEFI #531-0119I 4Normalized SKU: 5310119I4UPC Code: 736983856043
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Upgrade to V6.0 #531-0118U
$321.95
$408.90
CDI 531-0118U Diagnostic SoftwareThis product replaces:667-5310118U, 736983856012Normalized SKU: 5310118UUPC Code: 736983856012
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Upgrade Version 9.0 Software #531-0119U
$354.22
$442.11
CDI 531-0119U Diagnostic SoftwareUpgrade your current MEDS software to add on additional engine brands. DROP SHIPPED DIRECT FROM FACTORY, FREIGHT NOT ALLOWED.Normalized SKU: 5310119UUPC Code: 736983856012
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
CDI
CDI MEDS Yamaha Software 531-0118Y
$1,875.00
CDI 531-0118Y Diagnostic SoftwareM.E.D.S. is an easy-to-use, yet sophisticated software program specifically designed for troubleshooting multiple marine engines. Using M.E.D.S. you can easily collect engine data, determine active faults, run engine tests and efficiently diagnose problems. M.E.D.S. helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop. M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10.
M.E.D.S. is an easy-to-use software program specifically designed for troubleshooting multiple marine engines
Collect engine data, determine active faults, run engine tests and efficiently diagnose problems
Helps reduce debug time, improve diagnostic accuracy, print pre-packaged diagnostic reports and make more money for your shop
M.E.D.S. works on any PC, Laptop or Tablet running Windows 7, 8.1 or 10
Compatible engine platform: Yamaha
C.D.I. M.E.D.S. Yamaha Software 531-0118YNormalized SKU: 5310118YUPC Code: 20251500130
Frequently Asked Questions
First Choice Marine is an online marine retailer carrying a diverse line of marine parts and accessories and related items from industry-respected and demanded manufacturers and suppliers. Through our diverse distributor network, we are able to access over 150,000 items, including our current site inventory, new products being added, and special order items. If you need it on your boat... we are your one-stop shop!
Yes, we offer FREE Shipping on most orders over $149 to US-48*.
Each product displays a shipping status message, just above the item price. Below is the meaning for each of these codes.
- Qualifies for Free Shipping: This item qualifies for free shipping when the order is $149+
- Qualifies for Free Ground Shipping: This item qualifies for free ground shipping when the order is $149+.
- Oversized - Not Qualified for Free Shipping: This item is too large/heavy to qualify for free shipping
- Hazardous Item - Not Qualified for Free Shipping: This item is hazardous and does not qualify for free shipping
- Truck Freight - Not Qualified for Free Shipping: This item has to be shipped via truck freight. Please contact us for a quote
- In-Store Pickup Only: This item can only be picked up in our Grain Valley, MO retail store
Below the price of the item, on the product page, there is a message indicating the availability of the product.
The quantity on hand is updated as inventory events happen and matches what we have available. If you have urgent needs and we are close to what you need, contact us, and we can confirm stock.
We offer a hassle-free return policy. If you're not completely satisfied with your purchase, you can return it within 30 days for a full refund or exchange.
If you need to return an item, please follow the guidelines here so we can process a prompt refund and assist you in finding the correct item.
Free Shipping
On most orders $149+ to the continental 48 US states.Secure Shopping
Fast, secure checkout with a variety of payment methods.Shop with confidence
25+ years serving the marine industry.Support center
Need help? Contact us via live chat, phone, or email.