754-13590 Exhaust manifold, this manifold fits the Lister Petter LPW/S 4 cylinder model engine only754 13590 Exhaust manifold commonly seen on the Hawkpower standby generators 16 18kw size. You will need to order manifold gaskets, these items are sold separately and you order a quantity of 4. Part number 751 10103 This only fits the 4 cylinder engines. This part is a reconditioned part with very little use, gasket surfaces are all flat with zero distortion.