The Santro wiper blade size on the new Santro comes out as 20 inch for the driver blade and 16 inch for the passenger blade, going by several Santro fitment sellers. The Asta also has a rear wiper, whose blade size I could not confirm, so measure that one.
One Santro owner found the 20 inch driver blade a little short on his car and considered a 21 inch next time. That is a good reason to lay a tape on your old blade before buying. It takes less time than the shop takes to find the stock.
Santro fitment card
- Tyre size
- 155/80 R13 (D-Lite, Era, Magna), 165/70 R14 (Sportz, Asta)
- Wheels
- 13 inch steel (lower variants), 14 inch steel with full covers (Sportz, Asta)
- Alloy wheels
- Not fitted at the factory on any variant
- Tyre pressure (cold)
- Front 33 psi, rear 33 psi; confirm on the driver door sticker
- Wiper blades
- 20 inch driver side, 16 inch passenger side
- Status
- No longer sold new; figures are for the last version

Santro wiper blade size chart
| Position | Size | Notes |
|---|---|---|
| Driver side (right) | 20 inch (about 500 mm) | Measure; one owner preferred 21 inch |
| Passenger side (left) | 16 inch (about 400 mm) | Shorter blade |
| Rear, Asta only | Not confirmed | Measure the old blade |
An older Santro Xing uses another fitment, covered on our Xing wiper page; do not assume the two cars match.
Measuring the blades on your Santro
Stand each Santro arm upright. Run the tape across the wiping rubber alone and note the whole inch figure. On this right hand drive car the right blade is the longer one. A length moulded on the old Santro blade frame settles any doubt. Save both figures in your phone before heading out.
Changing Santro wiper blades
- Raise the Santro arm and pad the glass beneath with a towel.
- Squeeze the tiny catch at the blade joint.
- Pull the blade toward the arm's elbow so it slips off the hook.
- Thread the new Santro blade's adapter on until it snaps in.
- Lower the Santro arm slowly and try a washer spray.
Work on a single Santro arm at a time. If the new Santro blade lifts at speed or skips a strip by the roof edge, it is the wrong length or not latched.
When a Santro needs new wipers
- Smearing that leaves a haze in oncoming headlights
- A squeal or shudder on each stroke
- Split or curled rubber at the ends
- Uncleared arcs on the glass after a full sweep
Rubber hardens fastest on Santros parked outside through summer. Swap the pair before the first heavy rain; a blade that seemed fine in dry weather often fails on the first wet evening.
The Asta rear wiper
Only the Asta got a rear washer and wiper on the new Santro. Two matching sources for its Santro rear blade length did not turn up, so remove it and measure or carry it to the counter. The rear arm usually holds the blade by a small clip or pin; lift the arm before working on it so the motor is not strained.
Choosing a blade type for a small hatch
For a city Santro, standard frame blades do the job and are the cheapest. If you drive the highway in the rain often, a flat beam blade stays pressed to the glass at speed. Whatever you buy, the hook adapter must match the arm. Fill the Santro washer bottle with water and screen wash; household soap smears under street lights.
Questions owners ask
Which wiper blades fit the new Santro?
Sellers list 20 inch for the Santro driver arm and 16 inch for the other. A quick tape check on your Santro confirms.
Can I use a 21 inch blade on the Santro driver side?
One owner found 20 inch a little short and suggested 21 inch. Check that the longer blade does not touch the pillar or overlap the passenger blade before keeping it.
Which Santro trim has a rear wiper?
Just the Asta. Its rear blade length is unconfirmed, so measure the fitted one.
Do Santro Xing blades suit the new Santro?
Do not assume so; the Xing has a different windscreen and its own Santro Xing listing.
How often should Santro wipers be changed?
Once a year is typical, ideally right before the monsoon. Change sooner if they streak or chatter.