Wiper blade connector types explained
Buying the right size wiper blade is only half the job. The blade also has to physically attach to your wiper arm — and arms use different connector styles. Getting the size right but the connector wrong means the blade won't mount, or will mount loosely and fail mid-drive.
This guide covers five common connector types you'll encounter on US-market vehicles, how to recognize each one, and what to confirm before you buy.
Common wiper connector types
Other label: hook
A J-shaped metal hook clips onto a pin on the wiper arm. Many replacement blade packages include a hook adapter, but the package still needs to match your exact arm.
How to check: Look for a curved hook at the end of the metal arm. Do not use make, model, or model year alone as proof that this is the right connector.
Example lookup: 2023 Ford F-150 (9 X 3 Hook)
Buying tip: If your blade package includes multiple adapters, compare the hook adapter against the arm before removing the old blade.
Simplified original sketch for identification only. Adapter shapes vary by brand.
Patent references used for structural calibration:
Other labels: 19mm push button, 22mm push button
A straight arm slides into the blade adapter and locks with a visible release button on top. Button width and adapter shape can vary.
How to check: Look for a rectangular or round release button on top of the adapter instead of a curved hook or side tabs.
Example lookup: 2023 Honda Civic (Push Button (19mm) Coupler (WSIC))
Buying tip: Match the listed push-button size on the blade package or retailer fitment selector before buying.
Simplified original sketch for identification only. Adapter shapes vary by brand.
Patent references used for structural calibration:
Other label: PTB
A side-release tab that you pinch to release the blade from the arm. The blade usually locks around the arm laterally instead of sliding into a hook.
How to check: Look for tabs on the sides of the adapter or a release point you squeeze before sliding the blade off the arm.
Example lookup: 2022 Ford Edge (Pinch Tab)
Buying tip: Pinch tab blades are not interchangeable with hook arms unless the blade package includes the correct adapter.
Simplified original sketch for identification only. Adapter shapes vary by brand.
Patent references used for structural calibration:
Other label: narrow top lock
A connector where the blade slides onto the arm end and locks with a clip or cap. The release point is usually on top of the blade adapter.
How to check: Look for a straight arm end with a locking cap instead of a curved hook. Adapter shape and size can vary.
Example lookup: 2020 Mercedes-Benz CLA250 (TL11)
Buying tip: Confirm the adapter shape on the package or retailer fitment selector before buying.
Simplified original sketch for identification only. Adapter shapes vary by brand.
Patent references used for structural calibration:
Other label: 9mm pin
The blade slides onto a fixed pin on the wiper arm. Simple and secure, but not compatible with J-hook blades without an adapter.
How to check: Look for a small fixed pin sticking out from the side of the arm. Pin diameter matters, so do not assume all pin adapters are interchangeable.
Example lookup: 2015 BMW X3 (Side Pin (22mm))
Buying tip: Universal blade sets may include a pin adapter, but the adapter must match the pin size and lock securely.
Simplified original sketch for identification only. Adapter shapes vary by brand.
Patent references used for structural calibration:
How to identify your connector without looking it up
Lift the wiper arm away from the glass. Look at the end of the metal arm — the part that the blade clips onto:
- J-shaped hook: J-Hook connector.
- Top release button: Push Button connector.
- Side tabs or squeeze points: Pinch Tab connector.
- Straight arm with a top cap or channel: Top Lock or Bayonet connector.
- Fixed pin sticking out from the side: Side Pin connector.
If you are not sure, look up your vehicle below. When a fitment record does not have checked connector data yet, it marks the connector field as not verified instead of guessing.
Do universal wiper blades fit all connectors?
Most "universal" replacement blades include a J-Hook adapter pre-installed and a set of additional adapters for other connector styles in the box. This works for many vehicles, but not all. Beam blades and specialty OEM-style blades are sometimes connector-specific and do not include adapters.
When buying online, check the product listing for a connector compatibility list or a table showing which adapters are included. If your vehicle uses a Pinch Tab connector and the listing only mentions J-Hook, it will not fit without an adapter.
Does connector type affect blade performance?
The connector is a mounting interface — it does not directly affect how the blade clears the glass. Blade performance depends on the rubber compound, the beam or frame design, and the correct fit against the curve of your windshield. Use the correct connector to ensure the blade is properly seated; a loose or incorrect connection can cause chatter, streaking, or blade detachment at highway speeds.
Top Connector Status Searches
These exact-fitment pages show blade sizes and connector status on the vehicle page.
Check connector status for your vehicle
Use the vehicle lookup to find blade sizes for your year, make, and model. If the connector field is not verified on that page, confirm the arm adapter with the retailer selector or your current blade before buying.
Look up your vehicle →