Help me verifiy a E21 brake booster

[jpmarotta]

Bought a E21 brake booster off eBay, came in today.

Checked RealOEM, it's not the same part number when I cross-reference against any model year 1977-83 320i.
Supposed to be 34331117549, but the unit I have is 34331151109.
The VIN of the car the seller supposedly pulled the booster from checked out to be from an 11/81 production E21 320i.

Here's a picture of the model number label on the booster:



Anyone out there with an E21 booster have the same part number or confirm that this is the real deal?

[gregslow318i]

can you shoot a pic of the booster its self..

[jpmarotta]

What exactly...

can you shoot a pic of the booster its self..

... should I take a picture of?

The brake pedal shaft looks longer than the stock E30 booster.

What are the dimensions on the E21 booster?

[e30rapidic]

The brake pedal shaft looks longer than the stock E30 booster.

It is, it will need to be cut down and threaded

[gregslow318i]

... should I take a picture of?

The brake pedal shaft looks longer than the stock E30 booster.

What are the dimensions on the E21 booster?

the booster its self