UPDATE 2-Wabco posts surprise Q3 profit, shares up

* Q3 adj EPS $0.19 vs est loss of $0.06

* Rev falls 42 pct

* Sees signs of growth in North America

* Shares rise 10 pct (Adds conference call details, analyst comments, updates stock movement)

By Bhaswati Mukhopadhyay

BANGALORE, Oct 28 (Reuters) - Wabco Holdings Inc (WBC.N), a supplier of safety and control systems for commercial vehicles, posted a surprise quarterly profit due to lower expenses, and said it was seeing signs of growth in North America, sending its shares to a 52-week high.

Shares of the Brussels, Belgium-based company rose as much as 10 percent to $26.12 in morning trade Wednesday on the New York Stock Exchange, defying the weakness in the broader market.

Growth in the North American market, which has been anemic for quite a while, will be driven mainly by the pre-buy effect on trucks and engines, Chief Executive Jacques Esculier said on a conference call.

Wabco, whose key customers are Daimler AG (DAIGn.DE), ArvinMeritor Inc (ARM.N) and Fiat SpA (FIA.MI), said it expects U.S. demand to grow sequentially in the fourth quarter.