Restoring a 1965 Porsche 911 to its original glory means paying attention to every detail, including the windshield washer system. These early cars came with a simple but effective system that often needs refurbishment after decades of use. Whether you're doing a full restoration or just fixing a leak, knowing the correct parts and how they work is essential.
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Replacement part Windshield Washer Pump Grommet 1965-1989 For Porsche 911 R2DT-s05344
Understanding the System
The 1965 Porsche 911 windshield washer system is straightforward. It uses a small electric pump mounted on the washer fluid reservoir, hoses that run to the front of the car, and two nozzles that spray fluid onto the windshield. The system is activated by a switch on the dashboard, typically part of the wiper switch assembly.
Washer Pump and Reservoir
The pump is a single-speed electric unit that draws fluid from a plastic reservoir. On original cars, the reservoir is a white or translucent plastic bottle held in place by a metal bracket. The pump is often integrated into the reservoir cap or mounted separately. Replacement pumps are available from Porsche Classic and aftermarket suppliers. Be sure to get a 6V pump if your car still has the original electrical system, as 1965 models are 6-volt.
Nozzles and Tubing
Two brass or plastic nozzles are mounted on the hood (bonnet) near the windshield. They are adjustable to aim the spray. The tubing is small-diameter rubber hose that connects from the pump to a T-fitting, then to each nozzle. Over time, the hoses harden and crack, causing leaks. Original-style nozzles are reproduced, but check for correct fitment — some later nozzles have different spray patterns.
Switch and Wiring
The washer switch is usually integrated with the wiper switch. On a 1965 911, it's a pull-type switch on the dashboard. Wiring from the switch goes to the pump, and a ground wire connects to the chassis. Many restorers replace the switch or rebuild the original contacts. Ensure your wiring harness connectors are clean and tight.
Common Issues and Troubleshooting
Because the system is simple, most problems are easy to diagnose. Here are the frequent issues you'll encounter in a 1965 Porsche 911.
Leaks and Clogs
Old rubber hoses become brittle and crack. Replace all hoses with new ethanol-resistant rubber tubing of the correct internal diameter (usually 3/16 inch). Clogs occur when sediment builds up in the reservoir or nozzles. Clean the reservoir thoroughly and use a small wire to clear nozzle openings.
Pump Failure
The pump may stop working because of a dead motor or a blocked impeller. Test by disconnecting the hose at the pump and turning the switch on — if no fluid comes out, the pump is likely bad. Replacement pumps are available from classic Porsche specialists. You can also rebuild the original pump if you have the skills.
Electrical Problems
No pump action? Check the switch with a multimeter. Also inspect the fuse box: the washer circuit may be on a separate fuse. Ground connections corrode easily. Clean all ground points and apply dielectric grease.
Sourcing Replacement Parts
Finding correct 1965 Porsche 911 windshield washer system parts requires a mix of OEM and reproduction sources. Porsche Classic offers many original-style parts, including pumps, reservoirs, and nozzles. Specialized restoration vendors like Stoddard, Pelican Parts, and Sierra Madre Collection stock these items. When ordering, specify 1965 model year and 6V system. Avoid generic universal parts—they won't fit properly.
For the most authenticity, look for NOS (New Old Stock) parts on forums or swap meets. If originality isn't critical, modern aftermarket pumps can be adapted, but you'll need to modify brackets or wiring.
Restoration Tips and Recommendations
When restoring your washer system, replace all rubber parts (hoses, grommets) and the pump if it's weak. Use a dedicated windshield washer fluid, not plain water, to prevent freezing and lubricate the pump. If you're preserving a numbers-matching car, keep the original pump and rebuild it with new internals. For a driver, a new reproduction pump is reliable and affordable.
Final Recommendation
For most 1965 Porsche 911 owners, the best approach is to replace the pump, hoses, and nozzles with correct reproduction parts. This gives you a reliable system that looks original. If you can find a working NOS pump, that's a bonus. Always test all electrical connections before installation. With proper care, the washer system will serve another 50 years.