W12 Wiper Motor, 1.5″ Shaft, 5/8″ bkhd,

Introduction
The W12 Wiper Motor, 1.5″ Shaft, 5/8″ bkhd, for Boats & Marine Engines is a powerful and dependable marine-grade motor built specifically for demanding windshield wiper applications. Whether you’re navigating through stormy seas, heavy rainfall, or intense salt spray, a high-performance wiper motor like the W12 is essential for maintaining clear visibility and safety. With a robust 1.5-inch shaft and 5/8″ bulkhead thickness, this motor is engineered for long-term performance in harsh marine conditions.
This motor is commonly used in commercial vessels, recreational boats, offshore service craft, and fishing fleets. Its torque efficiency, sealed construction, and compatibility with advanced wiper control systems make it an excellent choice for helm and performance upgrades. Built to pair seamlessly with Roca-style arms and blades, the W12 motor offers the reliability every captain needs when out on open water.
Overview / What Is W12 Wiper Motor, 1.5″ Shaft, 5/8″ bkhd?
The W12 Wiper Motor, 1.5″ Shaft, 5/8″ bkhd is a marine-grade windshield wiper motor designed for high durability and efficient operation. The “1.5" shaft” refers to the length of the spindle that holds the wiper arm, while the “5/8" bkhd” (bulkhead) indicates the maximum dashboard or wall thickness through which the shaft can be installed. These measurements are critical for ensuring proper fit and alignment on your boat’s windscreen setup.
Capable of powering heavy-duty wiper arms and blades, the W12 motor delivers optimal torque and wipe performance, even in challenging marine weather conditions. It supports multiple sweep angles and is compatible with 12V or 24V electrical systems depending on the model you choose. Whether you’re retrofitting an old system or equipping a new vessel, the W12 is a proven performer.
- 1.5″ durable shaft for extended reach
- 5/8″ max bulkhead compatibility
- Multi-angle sweep capability
- Corrosion-resistant housing and internals
- Ideal for use with marine-grade control panels
Choosing the Best Wiper Motor for Your Boat
Choosing the right wiper motor depends on your vessel type, window size, and weather conditions. For heavy-duty marine applications, the W12 wiper motor marine is a top-tier choice due to its extended shaft and rugged design. It’s specifically designed for installations where thicker mounting surfaces or increased reach are needed.
When comparing options, look at factors like torque, shaft size, sweep angles, voltage compatibility, and IP waterproof ratings. The W12 model stands out for its combination of power, precision, and marine-specific engineering. Whether you’re piloting a fishing trawler, patrol vessel, or bluewater cruiser, this motor is built to deliver consistent performance where it matters most.
How to Install W12 Wiper Motor in Marine Helm Stations
Installing the W12 wiper motor marine is a straightforward task for any experienced marine technician or DIY boat owner. The installation process begins by determining the appropriate mounting location based on your window frame and dashboard thickness. Ensure your bulkhead or panel is no thicker than 5/8″, and the shaft reaches the arm mounting point without obstruction.
To install:
- Mark the drill holes using the motor’s mounting template
- Drill out the center hole for the shaft and the fixing holes
- Insert the shaft through the bulkhead and tighten from the opposite side
- Connect the wires to your power source or control panel (ensure correct polarity)
- Test sweep range and install the wiper arm securely onto the shaft
Note: Always use marine-rated connectors, fuse the circuit properly, and route cables to avoid water ingress or chafing.
Maintenance Tips
Maintaining the W12 wiper motor marine ensures long-term reliability and optimal performance. While the motor is built to withstand harsh marine environments, proactive care can significantly extend its operational lifespan. Begin by regularly inspecting the mounting and wiring for signs of corrosion or wear.
It’s advisable to:
- Rinse the motor and wiper arm area with fresh water after exposure to salt spray
- Apply dielectric grease to all electrical terminals to prevent corrosion
- Operate the motor monthly during off-seasons to keep components moving
- Check for moisture intrusion or cracks in the motor housing annually
Replace worn or stiff wiper arms immediately, as these can increase motor strain and reduce efficiency.
Troubleshooting Common W12 Wiper Motor Issues
While the W12 wiper motor marine is built for durability, occasional issues may arise. If the motor doesn’t start, first inspect the power connection and fuse. Use a multimeter to confirm that voltage is reaching the motor terminals. If power is confirmed but no movement occurs, the issue could be an internal failure or seized linkage.
When the wiper movement is erratic, double-check for misaligned arms or worn bearings. Squeaking sounds during operation may indicate lack of lubrication or damaged linkage. In such cases, disassemble the mount and inspect the mechanism. Always refer to your product manual for troubleshooting instructions specific to your motor variant.
Expert Advice and Pro Recommendations
Marine professionals often recommend the W12 wiper motor, 1.5" shaft, 5/8" bkhd for boats requiring extended shaft clearance and robust performance. If you’re upgrading from an older or underpowered motor, the W12 provides noticeable improvements in wipe consistency, reliability, and motor efficiency.
To optimize your setup, pair the motor with a Roca-compatible control panel that allows for intermittent wiping, wash function, and synchronization with other motors. Always match shaft length to windshield angle and arm length to prevent over-travel or limited motion. Buy now: W12 Wiper Motor, 1.5″ Shaft, 5/8″ bkhd and enjoy 5% off with the code WELCOME5.
Detailed FAQ Section
What makes the W12 Wiper Motor suitable for marine use?
The W12 wiper motor is designed with marine-grade materials and sealed internals to resist salt corrosion, moisture ingress, and temperature extremes. Its 1.5″ shaft and 5/8″ bulkhead compatibility ensure it fits securely in most helm stations and offers reliable torque delivery for large marine windshields. Additionally, the motor is compatible with advanced control systems, allowing multiple sweep settings and washer integration.
How do I replace an old marine wiper motor with the W12 model?
To replace an existing motor, begin by disconnecting the battery and removing the old motor and wiper arm. Measure the bulkhead thickness and shaft length to ensure compatibility with the W12. Drill any new mounting holes if necessary and install the W12 in place. Reconnect the electrical wires using marine-grade terminals and test the sweep pattern. Adjust the arm as needed before final tightening.
Can I install the W12 wiper motor on a fiberglass helm console?
Yes, the W12 motor can be installed on fiberglass, aluminum, or composite helm consoles, provided the bulkhead thickness does not exceed 5/8″. Use backing plates if the surface is thin or subject to flexing. Seal the shaft hole with a marine-grade gasket or sealant to prevent water intrusion, and always use stainless steel mounting hardware for durability.
What voltage options are available for the W12 wiper motor?
The W12 motor is available in both 12V and 24V configurations. It’s crucial to match the motor voltage with your boat’s electrical system to prevent damage or underperformance. Installing a 24V motor on a 12V system will result in inadequate torque, while using a 12V motor on a 24V system can overheat the unit and cause failure.
How much does the W12 wiper motor cost and what’s its lifespan?
Depending on the supplier and voltage configuration, the W12 wiper motor typically costs between $100 and $150. When properly installed and maintained, its operational lifespan can exceed 10 years. Routine inspection and correct installation play a key role in extending service life. The motor is backed by manufacturer warranties and is built to meet or exceed industry durability standards.
Conclusion
When visibility matters most, the W12 Wiper Motor, 1.5" Shaft, 5/8" bkhd delivers reliable performance in the harshest marine environments. Its durable construction, extended shaft length, and multi-compatibility design make it an ideal choice for professionals and boaters who demand high-quality equipment. Whether you’re outfitting a new vessel or replacing an outdated motor, this marine wiper motor ensures safety, clarity, and durability on every voyage.
Invest in performance, reliability, and visibility today by upgrading to the W12.
Special Offer
WELCOME5 – Get 5% off storewide at allboatsupplies.com
🚀 Instant Assistance: Need help selecting the right product? Drop your contact in the chatbox at the bottom right corner, and our expert team will reply within 30 minutes with the best product suggestion for your boat — including a ready-to-use checkout link. We’re fast, knowledgeable, and always here for your boating needs!
No more guesswork — just message us and get a personalized checkout link for your antifouling system, fast!
Explore Our Best-Selling Ultrasonic Antifouling Products:
Buy now
W12 Wiper Motor, 1.5″ Shaft, 5/8″ bkhd,
Let us handle the hassle — expert support, quick replies, and smooth checkout. Your boat deserves the best.