Description
Red Truck Diesel 4100-4 | 10′ 4wt Fly Rod
Everything you loved about the Diesel 3100-4 — now with a little more muscle.
The Red Truck Diesel 4100-4 takes the proven platform of our 10′ nymph rod and dials it up a notch. A beefed-up tip gives you a faster, more decisive reaction to strikes, while the powerful mid-section and backbone handle heavier rigs and bigger fish without breaking a sweat. At 10′ and 4wt, the extra length delivers exceptional line control, effortless mending, and smooth roll casting — everything you need to stay tight to your drift from the first cast to the last.
This rod went through serious testing with guides on small, medium, and big water alike. The verdict was unanimous — the Diesel 4100-4 is a perfect all-around trout catching machine, equally at home high-sticking pocket water or running an indicator rig through a long pool.
A special thanks to Jonathan Neyman and the team at The Fly Box in Bristol, Tennessee for putting this rod through its paces.
In stock and ready to fish.
Specifications:
- Length: 10′
- Line Weight: 4wt
- Pieces: 4-piece
- Red Truck switch grip
- Up-locking reel seat
- Precision-fit ferrules
- Handcrafted with premium components
- Proudly made in South Korea
- Now with the travel friendly cordura rod tube




Forrest –
The 10’4wt has become staple in my line up for my customers. Has power to throw larger nymph rigs yet still tons of delicacy to throw long leaders and small dry flys. 100% recommend for someone looking for a “do it all” rod.
Jacob Cervantes –
The 10ft 4WT Diesel is my daily driver guide rod. Beginners love to fish it but it keeps pace with experienced anglers just as well. It’s crazy versatile, and a no-brainer to add to your quiver.