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ZF 3315199008 – Trolling Valve Kit for ZF25 Marine Transmission
The ZF 3315199008 Trolling Valve Kit is a precision retrofit system designed specifically for ZF25 marine transmissions, enhancing vessel control at low engine speeds. Ideal for fishing, docking, or slow-speed navigation, this kit allows operators to maintain steady low RPM (500–1200 RPM) without frequent throttle adjustments. It provides smoother handling, improves fuel economy, and reduces strain on engine and transmission components.
Engineered for marine use, the trolling valve kit includes a corrosion-resistant anodized aluminum valve, stainless steel hardware, oil and water hoses, and vibration-dampened mounting brackets. Its compact design and bolt-on installation make it suitable for both professional refits and recreational upgrades.
Key Features:
- Specifically engineered for ZF25 marine transmissions
- Provides controlled low-speed maneuvering ideal for fishing and tight docking
- Reduces engine and gearbox strain by regulating RPM during slow operations
- Includes trolling valve, hoses, mounting brackets, and all required hardware
- Constructed with marine-grade anodized aluminum and stainless steel
- Improves fuel efficiency by minimizing unnecessary high-RPM use
- Low-noise, low-vibration operation with dampened mounting system
- Quick installation – typical retrofit time 2–3 hours
Specifications:
Part Number ZF 3315199008 Product Type Trolling Valve Retrofit Kit Compatible Transmission ZF25 Marine Transmission RPM Control Range 500 – 1200 RPM Pressure Rating 150 psi Flow Rate 3–10 GPM (11–38 L/min) Pressure Loss 5–15 psi (based on system flow) Valve Type Precision-controlled hydraulic trolling valve Port Sizes 1/2″ BSP (oil), 3/8″ BSP (water) Temperature Range –28 °C to +104 °C (–20 °F to +220 °F) Weight 4.5 lbs (2.04 kg) Material Anodized aluminum valve, stainless steel fittings Installation Time 2–3 hours (depending on vessel configuration) Mounting Type Bolt-on with vibration-damping hardware Application Fishing boats, pleasure craft, workboats with ZF25 transmissions Noise Level Low-noise operation during trolling Warranty 1-year limited manufacturer’s warranty
Compatibility and Application:
The ZF 3315199008 Trolling Valve Kit is tailored for the ZF25 transmission, enabling enhanced control for vessels operating at low speeds. Whether navigating tight harbors, trolling for fish, or maintaining steady course in restricted areas, this kit ensures responsive throttle control and extended mechanical lifespan. Compatible with a wide range of marine diesel engine setups, it is suitable for both commercial and recreational vessels.
Benefits:
- Greater maneuverability at low speeds without adjusting engine throttle constantly
- Minimizes fuel usage and extends engine/transmission lifespan
- Reduces wear during long periods of trolling or slow movement
- All-in-one kit with everything needed for installation
- Corrosion-resistant components for long-term marine durability
- Improves handling and safety during docking or precise maneuvers
- Suitable for upgrading older systems or outfitting new builds
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