Description
Comparison points and tradeoffs
When comparing 300637 – Single Knurled Driver 3/8 for Double-Flat Shaft Windshield Wiper Arms with other Arms options, use this source-backed detail as the primary discriminator: Category: Replacement Parts / Windshield Wipers & Parts / Wipers / Arms.
Use this second fact to evaluate the tradeoff: Product identity: 300637 – Single Knurled Driver 3/8 for Double-Flat Shaft Windshield Wiper Arms. A third point to compare across alternatives is: Product identity: 300637 – Single Knurled Driver 3/8 for Double-Flat Shaft Windshield Wiper Arms.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
No structured vehicle fitment data is available. Compare the listing with the vehicle and existing part before ordering.
Selection, alternatives, tradeoffs, upgrades, and direct replacements
Buying guidance
Quick decision
Use the supplied facts to compare this arms with direct replacements and nearby alternatives.
Choose this if
- The listed specifications and referenced numbers match the part you need.
- The package contents cover the repair without missing required components.
Consider another option if
- Your vehicle, connector, side, dimensions, or part number do not match the listing.
- You need a different package quantity, material, or variation.
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.