Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The NGK Iridium IX 6441 is a fine-wire iridium spark plug sold here as an 8-pack, sized for the 4.7L V8 in the 1997-2007 Jeep Grand Cherokee. Its 0.6 mm iridium center electrode and tapered ground electrode are built for easier sparking and longer service life than standard copper or platinum plugs. Enthusiasts fit Iridium IX plugs for smoother idle and quicker starts, though some report shorter life in engines that run rich. It suits owners doing a scheduled tune-up who want a stock-heat-range plug from a major ignition supplier.
In stockSold by yesautoparts
In stockSold by DaichiReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Store links may earn us a commission.
Lowest price we've seen: $78.47 on Nov 13 at eBay. Tracked across 1 store since Nov 13.
Owners of the 4.7L Grand Cherokee generally report smooth idle, easy starts and good throttle response after fitting these plugs. A minority say they wore faster than expected in engines with oil consumption or rich running.
This is a pack of 8 NGK Iridium IX spark plugs, part number 6441. They are made as direct replacements for the Jeep Grand Cherokee with the 4.7L V8 engine, model years 1997 to 2007.
The plugs are designed to support consistent ignition and combustion, which can lead to smoother engine operation. They are built from durable materials to withstand typical engine heat and operating conditions, and they provide dependable electrical conductivity.
They suit routine maintenance and scheduled tune-ups.
