For fleet operators and truck owners, we deliver OEM-grade pneumatic valves compatible with Eaton transmissions. Our products reduce downtime, improve performance, and meet the strict standards of heavy-duty commercial vehicles. Partner with Tritenco for reliable components that keep your business moving.
We specialize in manufacturing high-performance pneumatic valves for heavy-duty truck transmissions, including the A-5000 Slave Valve, K-3331 Splitter Valve, and A-4740 Air Filter Regulator, designed for use with Eaton Fuller transmissions. Built to meet OE-quality standards, our products deliver reliable performance for North American fleets. Every valve is precision-engineered to reduce downtime and improve efficiency. We know how critical reliability is to your business, so we design our parts to keep your trucks moving. Whether you operate a single truck or a large fleet, we have the solutions you need.
Precision control valve, works with the full kit to deliver smooth, responsive shifting for heavy-duty truck transmissions.
K-3331 Splitter Valve Kit
High-efficiency splitter valve, paired with the system for reliable gear splitting in heavy-duty multi-speed transmissions.
A-4740 Air Filter Regulator
Clean, regulated air supply, protecting the entire pneumatic system and extending valve service life for heavy-duty trucks.
System Compatibility
Matched set of three valves, optimized for the same heavy-duty transmission platform.
Multi-Brand Fit
As a matched kit, they fit Eaton transmissions and replace other leading heavy-duty brands.
Built for Fleet Reliability
Engineered for consistent performance in long-haul, construction, and logistics fleets.
Our Commitment
Quality & Reliability You Can Trust
We build heavy-duty transmission air valves to meet strict OE-quality standards, designed to keep your fleet running safely and efficiently, mile after mile.
Every valve we make meets or exceeds original equipment (OE) standards. It delivers the same fit, form, and function as factory parts. Most importantly, our core lineup includes the A-5000 Slave Valve, K-3331 Splitter Valve, and A-4740 Air Filter Regulator, all precision-engineered for seamless compatibility with Eaton Fuller transmissions. We don’t cut corners on materials or tolerances, ensuring you get reliable performance at a price that makes sense for your bottom line.
✅ 2. Built to Minimize Downtime, Maximize Uptime
We know every hour a truck is off the road costs you money. That’s why we design our valves for long service life and consistent, trouble-free performance. Rigorously tested under harsh conditions, our components are engineered to withstand the rigors of daily use, helping you keep your fleet moving and your schedule on track. By choosing Tritenco, you’re not just buying a part—you’re investing in less downtime, fewer repairs, and higher profitability.
✅ 3. Fleet-Focused Support & Reliability
For the more, whether you run a single truck or manage a large fleet, rest assured, we’re here to help. From quick quote responses to reliable replacement parts, we’re built to support the unique needs of heavy-duty operations. And we don’t stop supporting you after the sale. We work to be a dependable partner. You can always count on us. That’s why we ensure you have the parts you need. This way, you can keep your business running smoothly.
What Our Customers Say
Verified Customer Feedback
Fleet Maintenance Manager
Mike Thompson
“The K-3331 splitter valve performed flawlessly. OEM-grade quality, perfect fit, and fast shipping from their US warehouse. Will definitely reorder for our fleet maintenance needs.”
Heavy-Duty Truck Mechanic
Marcus Williams
“I’ve installed the A-5000 slave valve in several transmissions now. The build quality is solid, and it works just like the original. Saved our customer downtime, and the price is unbeatable.”
Parts Procurement Specialist
Ema Romero
“We’ve been sourcing air filter regulators from Tritenco for over a year. Their parts are always consistent, and their fast fulfillment keeps our inventory stocked. Great seller to work with.”
Independent Truck Owner
Tyler Reed
“As an owner-operator, reliability is everything. The parts I ordered fit perfectly, arrived on time, and the quality is top-tier. Highly recommend Tritenco for any transmission valve needs.”
Request a Custom Quote
Fill out the form below and our team will contact you within 24 hours.
Learn More From
FAQs
Yes, all our parts are manufactured to OEM standards, ensuring perfect fit and reliability.
We offer a 30-day hassle-free return policy for all our products.
Yes, we ship to most countries worldwide. Contact us for a shipping quote.
Yes, we produce standard high-precision shafts and bushings, with this capability supporting our transmission valve manufacturing.
We have a six‑axis robotic production line. Daily capacity reaches 1,200 sets.
We have about 30 employees. Over 10 of them are professional technicians and engineers.
Our facility holds ISO9001 and IATF16949 certifications.
We use FMEA and SPC controls in production.
Inspections include first article, process sampling, and final checks.
We have complete lab testing equipment.
These steps guarantee stable, high-quality products.
We require a 30% deposit to begin production, with the remaining 70% paid against shipping documents.
Accepted payment methods include T/T (Telegraphic Transfer) and L/C (Letter of Credit).
