Shimano Thunnus TU4000CI4 Spinning Reel

Shimano Thunnus TU4000CI4 Spinning Reel

Price: $269.99
TD Code
Line Capacity (Test/Yards)Power Pro Capacity (est/Yards)Line Retrieve Per CrankMax DragS SUS BearingsRoler ClutchGear RatioGripWeightPrice
30 in15 lbs.614.8Small Egg12.7 oz$269.99 USD
Lightweight and the power to stop big fish. Not a sentence you are used to hearing! Seemingly against the laws of nature. Thunnus takes a page from our Bicycle division using Carbon materials in high impact situations. Thunnus CI4 is a response to all the anglers out there in love with the ease of use and functionality that wanted the reel to shed some weight. Thunnus CI4 is up to 7 ounces lighter than its predecessor without sacrificing any power. Quite the opposite!! Due to new drag systems for the Main Drag and the Baitrunner drag Thunnus CI4 is the most efficient live bait spinning reel on the market with unmatched adjustability for fishing any bait in any condition as well as the smooth stopping power that this generation of Thunnus will be known for.
  • Lightweight CI4 Frame and Rotor (AL on 12000)
  • Aluminum Sideplate
  • Paladin Gear Durability Enhancement
  • Propulsion Line Management System: Propulsion Spool Lip, SR One-Piece Bail Wire, Power Roller III. Redesigned Bail Trip, S-Arm Cam
  • Varispeed Oscillation
  • S-Concept, S-Rotor, S-Arm Cam, Direct Drive Mechanism (Thread-In Handle Attachment), Oversized Septon Grips for Power and Comfort, WP Drag (Waterproof Drag)
  • Machined Aluminum Handle
  • Dartainium II Drag Washers (Cross Carbon)
  • Repairable Clicker
  • S A-RB (Shielded A-RB) Ball Bearings
  • Super Stopper II Anti-Reverse
  • Dyna-Balance
  • Floating Shaft
  • Fluidrive II Gearing
  • Approved for use in Saltwater
  • Rated for use with Mono, Fluorocarbon and PowerPro lines
5 Stars based on 38 reviews
By Mark
Massillon, OH
I now have them all!
March 27, 2021
I'm a huge Shimano fan of spinning reels. I have original thunnus 6000 and a couple of bait runners from 20 years ago. All great reels. Use them in the surf so they've been exposed to the salt and sand for a long time. Stopped using the original 6000 because it is so heavy. A couple years ago decided to start upgrading to the new CI4 thunnus reels. They are so light and smooth. I now have all the CI4 Thunnus. Each is dedicated to it's specific use. Mostly bait/live bait fishing. I use other Shimano reels for lures.
ProsMuch lighter than originals. Still same smooth reels.
By joshua g.
Orange county, california
Great Reel
October 29, 2020
Use to use the older Baitrunner 12000D and upgraded to this bad boy. Wondering why I didn't do it sooner. Smooth baitrunner and strong drag. Can handle anything from bass, yellowtail up to easily 50+ tuna.
By Alexandre
Naples, FL
My favorite spinning reels
June 3, 2020
Incredibly smooth reels with no backlash. They last years and maintenance is simple. The bait runner system is fantastic. Favorite spinner, hands down.
By Joe
newark, de
Great reel
May 30, 2020
just like the old one but lighter and just as powerful. I use this reel for stripers
By Nick c.
Shimano thunnus
May 25, 2020
Exactly ask I ordered. I live in Hawaii and My order came in fast. Thanks and enjoy the product. Aloha??
By Jarrid
Kailua, HI
The Best Baitrunner Spinning Reel On The Market!
March 29, 2020
This reel is incredible. Exactly what you'd expect from Shimano. Powerful, smooth, lightweight and versatile, dominating in all categories. The baitrunner feature is so simple to use and the various drag settings make it easy to match with the size of the bait you're using. I highly recommend this reel if you're seeking a Spinning Baitrunner Reel.
ProsSmooth Drag, Lightweight, Excellent Baitrunner Feature.
By Dan
Harleysville, Pa.
Great reel!!
March 28, 2020
This reel allows me to fish with live bait while throwing lures with another rod. Works like a charm!!
By Jeff
Roanoke VA
Great spinning reel
May 31, 2019
Bait runner is awesome!!!!!
By hui
staten island, new york
great for bait fishing
February 22, 2019
love this reel for striped bass fishing~!
By Angel
New York
The best shimano bait runner 8000
August 11, 2018
I use this mostly for saltwater bottom fishing montauk ny but will throw a plug on if the
20 pound bluefish are wh shimano tiralejo 12f nobody cast like me
By Grant R.
Hilltown, PA
July 23, 2018
I was looking for a new 8000 size reel to replace an old Penn. After reading reviews and handling a variety of reels, I chose to go with the Thunnus CI48000. Wow, is all I can say. This reel functions better than any reel in my bag. I also purchased a St. Croix Mojo Surf 11' to pair up and it is by far the best combo I have ever used. If you are looking for a reel that is an absolute beast pick this up you will not be disappointed.
ProsLightweight, amazing dual drag system, everything about this reel rocks
By Paul
North Miami, Fl
great offshore reel
November 25, 2017
Bought this with a loomis pro blue, use it in south florida for live baiting dolphin and tarpon.
Handles the tarpon under the bridges in excess of 100 lbs and is great for drifting live bait
offshore with the bait runner feature. it overmatches the schoolie dolphin but easily handles
the larger gaffers. I would buy 10 more if they didn't update the models
every few years making parts to previous models obsolete. I have a dozen shimano reels
(more?) and take care of them. when they finally need parts, you can't get them a few years
after they come out. Good news is if you take care of them, you can give them to your kids.
Smooth and strong, good drag and love the bait runner feature. kids can put it in the rod
holder and walk they do, turn the crank and your fish is still on and they do not
have to adjust the drag, just crank in your fish. I use it more than my stellas because they are
several generations old and can't afford to have them break. not much of a drop off in performance.
Conseventually parts will not be available as newer generations of this reel come out
By Chris
San Diego
Super Easy
October 26, 2017
Used this reel for fly-lining Sardines and the bait-runner feature worked well. Caught some nice 20-30 Yellowtail and drag worked great. The clicking feature of the bait-runner is annoying, but does a great job of keeping just enough pressure to keep your line sung. it was especially helpful on a full boat with others getting all tangled up. I used the bait-runner on its lowest setting the entire time and it was fine for the larger sardines I was using, but for smaller anchovies I think the drag might me a little too much.
ProsEasy to cast, holds plenty of line, bait-runner feature, smooth drag, , as fool proof as it gets, great for my wife
ConsIts a spinning reel, so you feel a little wimpy
By Exkeydet
Lexington, VA
Best Reel for the Money!
June 1, 2017
I'd purchased a Thunnus C14 8000 about a year earlier for striper fishing and loved it, but wanted to go one size up for my annual Florida tarpon trips. The Thunnus 12000 "filled the bill" perfectly. Rugged, reliable and for what it's worth, a perfect match for my Shimano Telavera spinning rod. I'd never owned a "bait runner" reel before, now I wonder how I ever lived without one. I'm already planning to buy a second one!

By Phil H.
New Fairfield, CT
Pricey but worth it.
August 30, 2016
I use this mostly for saltwater bottom fishing (in Rhode Island), but will throw a plug on if the bluefish are around (they are fun to catch). Fished with this reel 8 straight days on the saltwater and don't see any signs of corrosion anywhere on the reel (I did give it a freshwater wash down after every trip). Casts great, and the retrieve is very smooth. So far the biggest fish I have caught was an 8 Lb. bluefish and a 6 lb. skate (but hope to get some bigger ones in the future).
ProsVery smooth Casts great
2 Questions & 2 Answers
Pete Smith
from NC asked:
June 22, 2018
Hello Sir ! I own a Shimano talavera, extra heavy 8'-fast action spinning rod, and I'm shopping for a spinning reel that complements this rod. My choices range from the shimano tunnus, stradic,& sustain, to okuma cedros, azores, or penn clash. I fish off of piers for mackeral, drum, & bluefish and off of jetties and in the surf for anything I can catch. Also, occasionally fish off of a boat around inshore and inlet waters. I'm interested in your opinion on which reel would complement my rod and fishing habits. p.s. I lean towards a Tunnus-maybe the 6000, because of it lightness and power, but I don't like the slower gear ratio: 4.8: 1. Also love the looks of the Okuma Cedros, but it doesn't have carbon fiber drag. Thanks, and thanks for all yall' do at TD ! Pete Smith Raleigh, NC
1 Answers
I would recommend the Thunnus 6000 for the style fishing you do. This reel would work perfect.
on July 5, 2018

Brian Ellis
from LC~Lago Vista,TX asked:
July 24, 2015
Do you sell spools for the thunnus c14
1 Answers
Hello Brian. We do not sell spare spools for this reel. However, they are available direct from Shimano. They can be reached at 877-577-0600.
on July 26, 2015


Show off your fishing gear investment. Please post images and videos of your fishing gear, apparel, catches and lifestyle shots on and off the water. Let's see what you've got for a chance to win FREE gear! You can use #HookedOnTD or UPLOAD YOUR IMAGE HERE to make it onto our product pages or gallery. See something you like? You can shop directly from the images we post when gear we sell is featured!