Description
Repair, installation, and use context
Evaluate 300637 – Single Knurled Driver 3/8 for Double-Flat Shaft Windshield Wiper Arms in the context of a Arms repair, installation, or use case. The source application detail is: Category: Replacement Parts / Windshield Wipers & Parts / Wipers / Arms.
Plan access, tools, and surrounding components around this supporting source detail: Product identity: 300637 – Single Knurled Driver 3/8 for Double-Flat Shaft Windshield Wiper Arms. Confirm this final recorded point before work begins: Product identity: 300637 – Single Knurled Driver 3/8 for Double-Flat Shaft Windshield Wiper Arms.
Job-planning boundary
The page preserves the supplied facts but does not infer an unlisted vehicle, installation method, or repair result.
Complete source-backed product details
No structured vehicle fitment data is available. Compare the listing with the vehicle and existing part before ordering.
Repair scenarios, installation, companion parts, and use outcomes
Buying guidance
Quick decision
Review this arms in the context of the repair and the surrounding components.
Repair scenario
- Identify the symptom and confirm that this is the component required by the repair.
- Inspect nearby connectors, fasteners, and mating surfaces before installation.
Installation notes
- Use the listing instructions when present and follow the vehicle service procedure.
- Professional installation may be appropriate when the repair requires special tools or calibration.
Companion parts
- Inspect nearby fasteners, connectors, seals, fluids, and wear items before starting the repair.
- Use the service procedure and the visible package contents to identify any additional parts or tools required.
Before you buy
- Compare the listing title, photos, package contents, and specifications with the part being replaced.
- Confirm vehicle compatibility and installation requirements before ordering.
Customer feedback
Ratings and written reviews
4.9 / 5
79 source ratings
Source: Amazon. Imported marketplace feedback is shown for product research and is not a review of a purchase made on this website.
Vinnfizz –
RV dealer installed new gear box on motor under warrantee repair but botched the installation. It hasn’t worked correctly since so as a DIYer I’m going through whole system to find out why. Found collet split on driver’s side. Motor may not be set correctly for original sweep pattern.We will see!
Customer –
Fits fine and wiper now works. Old one split in 2.
Rodger M. –
Exactly the part I needed at a great price.
Katherine L Carano –
Worked great
David Irvin –
it was exactly what I neededthanks
Customer –
Quality is good but over priced for single item.Purchased the same item from your exact supplier, one pack of ten for only two dollars more.Your advertisement is misleading.
Shopshop –
We ordered this to replace the broken one for our 2005 Dutch Star windshield wipers. Exactly what we needed.
Robert Pulliam –
This part allows for the correct positioning of windshield wipers on class A motorhomes and I just found out from my son who is a school bus mechanic is also used on flat nosed school buses. It will break in two, during my initial search no one could tell me where to find this part, after inquiring several places I had just about given up and then I checked google, bingo, Amazon stocks this piece at a decent price. So far it’s working good and the wiper is positioned good.