Tritenco K-3331 Splitter Valve | Eaton Fuller RTLO Series Replacement

K-3331 Splitter Valve for Eaton Fuller RTLO Series | Tritenco Direct Replacement

Splitter valve kit

Product name	Splitter valve kit
Brand	Tritenco
Color/Finish	Nature/ Anodized
Supply Ports (2)	1/8” N.P.T.
Delivery Port (3)	1/8” N.P.T.
Control Port (1)	1/8” N.P.T.
Item Grade	Standard replacement, OEM/aftermarket options available
Material	Aluminum
Bolts for mounting	4×5/16"-18X1-7/8"
Nominal pressure	60 Psi (0.4137MPa)
Product weight	547 g(1.190 lbs)
Product Size (L×W×H)	10×9×7cm
Unit Package Weight	667g (1.47lbs)
Unit Package Size (L×W×H)	12×10×9cm
Package Quantity/ Weight	18Pcs/ 12Kg
Outer Carton Size (L×W×H)	33×27×27cm

Tritenco K-3331 Splitter Valve Kit is an OE-equivalent direct replacement for Eaton Fuller RTLO series heavy-duty transmissions. Designed for precise fit, reliable performance, and long service life in commercial truck applications.

Product Overview

Brand: Tritenco
Part Number: K-3331 (also compatible with FUL K3331, K3331B, A6862, etc.)
Condition: 100%New
Compatibility: Fits Eaton Fuller RTLO/RTLOF series transmissions (513s, 613s, 713s, 913s, 618s, 718s, 918s).
*Does not fit RT/RTO-613 / 6613 models.
Compatible with Mack, Freightliner, and other heavy-duty trucks.

Interchangeable Part Numbers

4300927, 3088-K-3331, A6862, FUL K3331, NSFSK3331, S10291, M13K-3331

Key Features

OE-Equivalent Quality: Built to meet or exceed OEM specifications for durability and consistent shifting
Anodized Aluminum Construction: Resists high temperatures, 60 PSI operating pressure, and corrosion
Direct Fit Design: Engineered for exact compatibility with RTLO series transmissions
Complete Service Kit: All-in-one kit for drop-in replacement, reducing downtime
Seamless Integration: Works across a wide range of commercial vehicles

Technical Specifications

Air Ports: 3x 1/8-inch NPT (inlet/outlet/control)
Mounting: 4x 5/16-inch-18 bolts (1-7/8-inch length)
Operating Pressure: 60 PSI (0.4137 MPa)
Material: Anodized aluminum alloy
Weight: 547 g (1.190 lbs)

Package Includes

1 x Splitter Valve
3 x Sealing O-ring
1 x Connector

Compatibility Note

This is an aftermarket replacement part. It is designed to be compatible with and replace genuine Eaton Fuller® and other OEM part numbers listed. All trademarks are property of their respective owners.
Backed by Tritenco's precision manufacturing and IATF 16949 quality system, the K-3331 splitter valve delivers reliable performance for fleets, repair shops, and aftermarket distributors worldwide.
For full system optimization, we recommend pairing it with the Tritenco A-5000 Slave Valve Assembly and A-4740 Air Filter Regulator Assembly.

Learn more about our Manufacturing capability

The k3331 splitter valve kit is a key oe-quality component for heavy-duty truck transmission systems, designed to deliver precise, reliable control of split gear shifts. Manufactured with

ultra-high precision and strict quality control, it ensures smooth and stable performance in demanding commercial vehicle applications. As a direct replacement part, the k3331 splitter

valve kit is built to meet oe specifications, offering the same level of reliability as the original equipment at factory-direct prices. It plays a critical role in multi-speed transmissions,

optimizing gear selection and reducing driver fatigue while extending transmission service life. Our manufacturing capabilities ensure the k3331 splitter valve kit is produced with process

design optimization, precision machining, and a stable mass production system, guaranteeing consistent quality and timely supply for our customers.