Parts/350Z/G35
350Z/G35 · Buyer's guide

350Z/G35 VQ35DE Valve Covers & Plug-Well Seal Trap

VQ35DE-powered 2003-2006 350Z, 2003-2006 G35 Sedan, and 2003-2007 G35 Coupe as covered by the cited kit. VQ35HR is excluded.

Current seller options

WHERE TO BUY

Open an exact listing, then confirm fitment, stock, price, and shipping with the seller before ordering.

Seller links checked . Prices and availability can change.

What you need to know

Oil in a VQ35DE spark-plug well is a different leak from the removable outer rocker-cover gasket. The cited OEM kit states that the plug-recess seals are not replaceable separately, so the normal OEM repair is the affected complete valve cover, usually with a new outer gasket. This row does not cover VQ35HR sealing parts.

OEM numbers

Complete VQ35DE valve covers: RH/passenger 13264-AM600 and LH/driver 13264-AM610. Separate outer rocker-cover gaskets: 13270-8J102 and 13270-8J112. The OEM spark-plug recess seals are built into the covers and are not cataloged as the normal separate repair path.

Supersession

No complete factory valve-cover supersession chain is claimed. The cited VQ35DE catalog records 13264-AM600 RH and 13264-AM610 LH; outer gaskets are 13270-8J102 and 13270-8J112. Verify VIN/engine before purchase.

Fitment

Oil in a VQ35DE spark-plug well is a different leak from the removable outer rocker-cover gasket. The cited OEM kit states that the plug-recess seals are not replaceable separately, so the normal OEM repair is the affected complete valve cover, usually with a new outer gasket. This row does not cover VQ35HR sealing parts.

Aftermarket options

Complete OEM Nissan covers are the clear stock-style path. Aftermarket aluminum or plastic covers may advertise serviceable tube seals, but fit, casting, baffling, and included hardware must be evaluated product by product; do not present them as OEM-equivalent without evidence.

Before you buy

VQ35DE cover family only; VQ35HR is excluded. Outer cover gaskets do not repair leaking built-in plug-well seals. Verify side, engine, VIN, and kit contents before checkout. This aftermarket pair is for the VQ35DE applications stated on the listing, not VQ35HR/VQ37VHR. Finish availability is variant-specific and can change.

Research and fitment sources

Supersede reviewed 7 unique research sources for this guide. 4 also appear above as a seller or official action and are not repeated here; 3 additional citations follow.

Research last verified .

  1. Nissan Parts Deal — cylinder head rocker cover
  2. Infiniti Parts — engine oil pan
  3. Nengun — 13264 am600