I need a part number for the O-Ring that goes between the two halves of the water pump. It is the one that is about 5" in diameter and really skinny (not 5159019aa).

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2005 CRD Limited, Black 205k Miles (Timing Belt Changed at 100k and 200k), GDE Eco-Tune, Carter in-tank lift pump
2005 CRD Sport, Black - Ingested Valve at 170k miles R.I.P.

If you know a good Jeep parts manager you might try him/her but as far as I know DCJ only sells the WP as an assembled unit even though all you need is the front 1/2 and "O" ring. Alternatively you might be able to contact the eBay owner of the http://stores.ebay.com/Get-Car-Parts-Ch ... 34.c0.m322 site who sells just the front 1/2 with "O" ring and see what he says.

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs